Phio Pharmaceuticals Corp. 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36304 Phio Pharmaceuticals Corp. (Exact name of registrant as specified in its charter) Delaware 45-3215903 (State of incorporation) (I.R.S. Employer Identification No.) 257 Simarano Drive , Suite 101 , Marlborough , MA 01752 (Address of principal executive office) (Zip code) Registrant’s telephone number: ( 508 ) 767-3861 Securities registered pursuant to Section 12(b) of the Exchange Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, par value, $0.0001 per share PHIO The Nasdaq Capital Market Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter time that the registrant was required to submit such files). Yes ☒ No ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer ☐ Accelerated filer ☐ Non-accelerated filer ☒ Smaller reporting company ☒ Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate by checkmark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒ As of August 5, 2022, Phio Pharmaceuticals Corp. had 13,658,722 shares of common stock, $0.0001 par value, outstanding. PHIO PHARMACEUTICALS CORP. FORM 10-Q — QUARTER ENDED JUNE 30, 2022 INDEX Part No. Item No. Description Page No. I FINANCIAL INFORMATION 3 1 Financial Statements (Unaudited) 3 Condensed Consolidated Balance Sheets as of June 30, 2022 and December 31, 2021 3 Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2022 and 2021 4 Condensed Consolidated Statements of Stockholders’ Equity for the Three and Six Months Ended June 30, 2022 and 2021 5 Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2022 and 2021 6 Notes to Condensed Consolidated Financial Statements 7 2 Management’s Discussion and Analysis of Financial Condition and Results of Operations 14 3 Quantitative and Qualitative Disclosures About Market Risk 20 4 Controls and Procedures 20 II OTHER INFORMATION 21 1 Legal Proceedings 21 1A Risk Factors 21 2 Unregistered Sales of Equity Securities and Use of Proceeds 22 3 Defaults Upon Senior Securities 22 4 Mine Safety Disclosures 22 5 Other Information 22 6 Exhibits 22 Signatures 23 2 PART I — FINANCIAL INFORMATION ITEM 1. FINANCIAL STATEMENTS PHIO PHARMACEUTICALS CORP. CONDENSED CONSOLIDATED BALANCE SHEETS (Amounts in thousands, except share and per share data) (Unaudited) June 30, 2022 December 31, 2021 ASSETS Current assets: Cash $ 18,020 $ 24,057 Restricted cash 50 50 Prepaid expenses 1,618 620 Total current assets 19,688 24,727 Right of use asset, net 223 283 Property and equipment, net 206 133 Other assets 27 27 Total assets $ 20,144 $ 25,170 LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities: Accounts payable $ 1,148 $ 283 Accrued expenses 1,759 2,660 Lease liability 130 125 Total current liabilities 3,037 3,068 Lease liability, net of current portion 104 170 Total liabilities 3,141 3,238 Commitments and contingencies (Note 9) – – Stockholders’ equity: Preferred stock, $ 0.0001 par value, 10,000,000 shares authorized – – Common stock, $ 0.0001 par value, 100,000,000 shares authorized; 13,658,722 and 13,534,996 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively 1 1 Additional paid-in capital 139,075 138,831 Accumulated deficit ( 122,073 ) ( 116,900 ) Total stockholders’ equity 17,003 21,932 Total liabilities and stockholders’ equity $ 20,144 $ 25,170 The accompanying notes are an integral part of these condensed consolidated financial statements. 3 PHIO PHARMACEUTICALS CORP. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Amounts in thousands, except share and per share data) (Unaudited) Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating expenses: Research and development $ 1,304 $ 1,559 $ 2,890 $ 3,988 General and administrative 1,217 1,125 2,271 2,334 Total operating expenses 2,521 2,684 5,161 6,322 Operating loss ( 2,521 ) ( 2,684 ) ( 5,161 ) ( 6,322 ) Total other (expense) income, net ( 10 ) ( 3 ) ( 12 ) 228 Net loss $ ( 2,531 ) $ ( 2,687 ) $ ( 5,173 ) $ ( 6,094 ) Net loss per common share: Basic $ ( 0.19 ) $ ( 0.20 ) $ ( 0.38 ) $ ( 0.50 ) Diluted $ ( 0.19 ) $ ( 0.20 ) $ ( 0.38 ) $ ( 0.50 ) Weighted average number of common shares outstanding Basic 13,658,722 13,534,389 13,611,687 12,115,276 Diluted 13,658,722 13,534,389 13,611,687 12,115,276 The accompanying notes are an integral part of these condensed consolidated financial statements. 4 PHIO PHARMACEUTICALS CORP. CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Amounts in thousands, except share data) (Unaudited) For the Three and Six Months Ended June 30, 2022 Common Stock Additional Paid-in Accumulated Shares Amount Capital Deficit Total Balance at December 31, 2021 13,534,996 $ 1 $ 138,831 $ ( 116,900 ) $ 21,932 Issuance of common stock upon vesting of restricted stock units 155,317 – – – – Shares withheld for payroll taxes ( 31,591 ) ( 25 ) – ( 25 ) Stock-based compensation expense – – 186 – 186 Net loss – – – ( 2,642 ) ( 2,642 ) Balance at March 31, 2022 13,658,722 $ 1 $ 138,992 $ ( 119,542 ) $ 19,451 Stock-based compensation expense – – 83 – 83 Net loss – – – ( 2,531 ) ( 2,531 ) Balance at June 30, 2022 13,658,722 $ 1 $ 139,075 $ ( 122,073 ) $ 17,003 For the Three and Six Months Ended June 30, 2021 Common Stock Additional Paid-in Accumulated Shares Amount Capital Deficit Total Balance at December 31, 2020 5,780,973 $ 1 $ 116,629 $ ( 103,613 ) $ 13,017 Issuance of common stock, pre-funded warrants and warrants in connection with private placement, net of offering costs 4,420,863 – 12,669 – 12,669 Issuance of common stock in registered direct offering, net of offering costs 2,246,784 – 6,908 – 6,908 Issuance of common stock upon the exercise of warrants 1,083,321 – 2,146 – 2,146 Issuance of common stock upon vesting of restricted stock units 2,570 – – – – Shares withheld for payroll taxes ( 122 ) – – – – Stock-based compensation expense – – 67 – 67 Net loss – – – ( 3,407 ) ( 3,407 ) Balance at March 31, 2021 13,534,389 1 138,419 ( 107,020 ) 31,400 Stock-based compensation expense – – 132 – 132 Net loss – – – ( 2,687 ) ( 2,687 ) Balance at June 30, 2021 13,534,389 $ 1 $ 138,551 $ ( 109,707 ) $ 28,845 The accompanying notes are an integral part of these condensed consolidated financial statements. 5 PHIO PHARMACEUTICALS CORP. CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Amounts in thousands) (Unaudited) Six Months Ended June 30, 2022 2021 Cash flows from operating activities: Net loss $ ( 5,173 ) $ ( 6,094 ) Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization 41 36 Non-cash lease expense 60 58 Non-cash stock-based compensation 269 199 Forgiveness of debt – ( 233 ) Changes in operating assets and liabilities: Prepaid expenses and other assets ( 998 ) ( 810 ) Accounts payable 865 ( 380 ) Accrued expenses ( 901 ) 760 Lease liability ( 61 ) ( 57 ) Net cash used in operating activities ( 5,898 ) ( 6,521 ) Cash flows from investing activities: Cash paid for purchase of property and equipment ( 114 ) ( 21 ) Net cash used in investing activities ( 114 ) ( 21 ) Cash flows from financing activities: Net proceeds from the issuance of common stock and warrants – 19,577 Net proceeds from the exercise of warrants – 2,146 Payment of taxes for net share settled restricted stock unit issuances ( 25 ) – Net cash (used in) provided by financing activities ( 25 ) 21,723 Net (decrease) increase in cash and restricted cash ( 6,037 ) 15,181 Cash and restricted cash at the beginning of period 24,107 14,294 Cash and restricted cash at the end of period $ 18,070 $ 29,475 The following table provides a reconciliation of cash and restricted cash reported within the Condensed Consolidated Balance Sheets to the totals above: Schedule of cash and restricted cash June 30, 2022 2021 Cash $ 18,020 $ 29,425 Restricted cash 50 50 Total cash and restricted cash $ 18,070 $ 29,475 The accompanying notes are an integral part of these condensed consolidated financial statements. 6 PHIO PHARMACEUTICALS CORP. NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) 1. Organization and Significant Accounting Policies Nature of Operations Phio Pharmaceuticals Corp. (“ Phio ,” “ we ,” “ our ” or the “ Company ”) strives to address the biggest challenges in immuno-oncology by working to create new pathways to a cancer-free future for patients. We are developing therapeutics that leverage our INTASYL™ technology to target both tumor and immune cells by regulating genes to strengthen a patient’s immune system while weakening tumor defense mechanisms. With our INTASYL self-delivering RNAi technology, we aim to bring the benefits of RNA therapeutics into cancer care where other modalities may fall short. The Company continues to respond to and monitor the ongoing coronavirus pandemic. The Company’s corporate headquarters and research facility have seen limited impact and, during the three and six months ended June 30, 2022, continued to operate with safety measures in place for the health and well-being of its employees, such as working remotely and flexible scheduling, in accordance with guidance from federal, state and local authorities. The Company believes that the coronavirus pandemic has not had a significant impact on its financial condition and results of operations for the three and six months ended June 30, 2022. However, the extent to which the coronavirus pandemic may materially impact our financial results and operations will depend on a number of factors, including the availability of supplies and services we rely on, the ability to enroll subjects in our clinical trials and the duration of the coronavirus pandemic, which remain difficult to predict and are highly uncertain. Liquidity The Company has reported recurring losses from operations since its inception and expects to continue to have negative cash flows from operations for the foreseeable future. Historically, the Company’s primary source of funding has been from sales of its securities. The Company’s ability to continue to fund its operations is dependent on obtaining funding from third parties, such as proceeds from the issuance of debt, sale of equity, or strategic opportunities, in order to maintain its operations. This is dependent on a number of factors, including the market demand or liquidity of the Company’s common stock, which may be adversely impacted by the coronavirus pandemic and the ongoing conflict between Russia and Ukraine. There is no guarantee that debt, additional equity or other funding will be available to us on acceptable terms, or at all. If we fail to obtain additional funding when needed, we would be forced to scale back or terminate our operations or seek to merge with or to be acquired by another company. While we believe that the coronavirus pandemic has not had a significant impact on our financial condition and results of operations at this time, the potential economic impact brought by the coronavirus pandemic, which may be exacerbated by the global macroeconomic uncertainty from the ongoing conflict between Russia and Ukraine, is difficult to assess or predict. There may be developments outside of our control that require us to adjust our operating plans. Given the nature of the situation, we cannot reasonably estimate the impact of the coronavirus pandemic on our financial condition, results of operations or cash flows in the future. The Company believes that its existing cash should be sufficient to fund operations for at least the next 12 months from the date of the release of these financial statements. Basis of Presentation The accompanying financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“ GAAP ”). Certain information and footnote disclosures included in the Company’s annual financial statements have been condensed or omitted. Additionally, certain prior year amounts have been reclassified for consistency with the current year presentation. The Company made an adjustment to reflect patent costs within general and administrative operating expenses in the condensed consolidated statements of operations. The reclassification increased general and administrative operating expenses and reduced research and development operating expenses by $ 104,000 for the three months ended June 30, 2021 and by $ 296,000 for the six months ended June 30, 2021. This reclassification had no effect on total operating expenses, net loss, net loss per common share and had no impact on the Company’s condensed consolidated balance sheets, statement of stockholders’ equity and statement of cash flows for the prior year period. 7 The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. These statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2021, as filed with the Securities and Exchange Commission (the “ SEC ”) on March 22, 2022. In the opinion of management, all adjustments (including normal recurring accruals) considered necessary for a fair presentation of the condensed consolidated financial statements have been included. Interim results are not necessarily indicative of results for a full year. Principles of Consolidation The condensed consolidated financial statements include the accounts of Phio and its wholly-owned subsidiary, MirImmune, LLC. All material intercompany accounts have been eliminated in consolidation. Uses of Estimates in Preparation of Financial Statements The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The areas subject to significant estimates and judgement include, among others, those related to the fair value of equity awards, accruals for research and development expenses, useful lives of property and equipment, income taxes, and our valuation allowance on our deferred tax assets. On an ongoing basis, we evaluate our estimates and base our estimates on historical experience and other relevant assumptions that we believe are reasonable under the circumstances, including as a result of new information that may emerge concerning the coronavirus pandemic and the ongoing conflict between Russia and Ukraine. Actual results could differ materially from these estimates. Summary of Significant Accounting Policies There have been no material changes to the Company’s significant accounting policies as compared to those disclosed in “Note 2. Summary of Significant Accounting Policies” in our most recent Annual Report on Form 10-K for the year ended December 31, 2021 as filed with the SEC on March 22, 2022. 2. Recent Accounting Pronouncements In May 2021, the Financial Accounting Standards Board (the “ FASB ”) issued ASU 2021-04, “ Earnings per Share (Topic 260), Debt – Modifications and Extinguishments (Subtopic 470-50), Compensation – Stock Compensation (Topic 718), and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40) ” (“ ASU 2021-04 ”). The amendments in the updates are intended to clarify and reduce diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options that remain equity classified after modification or exchange. The amendments in ASU 2021-04 are effective for all entities for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. An entity should apply the amendments prospectively to modifications or exchanges occurring on or after the effective date of the amendments. Early adoption is permitted for all entities, including within an interim period. The Company adopted ASU 2021-04 on January 1, 2022. The adoption of this standard had no impact on the Company’s condensed consolidated financial statements. 8 3. Fair Value of Financial Instruments The Company follows the provisions of the FASB Accounting Standards Codification (“ ASC ”) Topic 820, “ Fair Value Measurement ,” for the Company’s financial assets and liabilities that are re-measured and reported at fair value each reporting period and are re-measured and reported at fair value at least annually using a fair value hierarchy that is broken down into three levels. Level inputs are defined as follows: Level 1 – quoted prices in active markets for identical assets or liabilities. Level 2 – other significant observable inputs for the assets or liabilities through corroboration with market data at the measurement date. Level 3 – significant unobservable inputs that reflect management’s best estimate of what market participants would use to price the assets or liabilities at the measurement date. At June 30, 2022 and December 31, 2021, the Company categorized its restricted cash of $ 50,000 as Level 2 hierarchy. The assets classified as Level 2 have initially been valued at the applicable transaction price and subsequently valued, at the end of each reporting period, using other market observable data. Observable market data points include quoted prices, interest rates, reportable trades and other industry and economic events. 4. Leases In January 2019, the Company amended the lease for its corporate headquarters and primary research facility in Marlborough, Massachusetts. The lease is for a total of 7,581 square feet of office and laboratory space and will expire on March 31, 2024 . The lease contains an option to terminate after two or three years by providing advance written notice of termination pursuant to the terms of the agreement. The exercise of this option was not determined to be reasonably certain and thus was not included in the lease liability on the Company’s balance sheet. The Company did not exercise its option to terminate in either the second or third year of the lease, and the option to terminate has expired. Additionally, the lease agreement did not contain information to determine the borrowing rate implicit in the lease. As such, the Company calculated its incremental borrowing rate based on what the Company would have to pay to borrow on a collateralized basis over the lease term for an amount equal to the remaining lease payments, taking into consideration such assumptions as, but not limited to, the U.S. treasury yield rate and borrowing rates from a creditworthy financial institution using the above lease factors. The lease for our corporate headquarters represents substantially all of our significant lease obligations. The amounts reported in the condensed consolidated balance sheets for operating leases in which the Company is the lessee and other supplemental balance sheet information is set forth as follows, in thousands, except the lease term (number of years) and discount rate: Schedule of lease and supplemental balance sheet information June 30, 2022 December 31, 2021 Assets Right of use asset $ 223 $ 283 Liabilities Lease liability, current 130 125 Lease liability, non-current 104 170 Total lease liability $ 234 $ 295 Lease Term and Discount Rate Weighted average remaining lease term 1.75 2.25 Weighted average discount rate 4.70 % 4.70 % Operating lease costs included in operating expense were $ 33,000 for the three months ended June 30, 2022 and 2021, respectively. Operating lease costs included in operating expense were $ 66,000 for the six months ended June 30, 2022 and 2021, respectively. 9 Cash paid for the amounts included in the measurement of the operating lease liability on the Company’s condensed consolidated balance sheets and included within changes in the lease liability in the operating activities of our condensed consolidated statements of cash flows was $ 34,000 and $ 33,000 for the three months ended June 30, 2022 and 2021, respectively. Cash paid for the six months ended June 30, 2022 and 2021 was $ 67,000 and $ 65,000 , respectively. Future lease payments for our non-cancellable operating leases and a reconciliation to the carrying amount of the operating lease liability presented in the condensed consolidated balance sheet as of June 30, 2022 is as follows, in thousands: Schedule of future minimum lease payments 2022 (remaining) $ 68 2023 140 2024 35 Total lease payments 243 Less: Imputed interest ( 9 ) Total operating lease liabilities (includes current portion) $ 234 5. Debt In May 2020, the Company received loan proceeds pursuant to the Paycheck Protection Program (the “ PPP ”) under the Coronavirus Aid, Relief, and Economic Security Act (the “ CARES Act ”). The Company followed the guidance under the FASB ASC Topic 470, “ Debt ,” (“ ASC 470 ”) in assessing the accounting for the PPP loan proceeds. Per ASC 470, the Company recorded a liability on the balance sheet for the full amount of the PPP loan proceeds received and accrued interest over the term of the loan. The Company believed it used the loan proceeds for eligible purposes and applied for full loan forgiveness. In February 2021, the Small Business Administration approved the Company’s application for full loan forgiveness, and the full amount of the PPP loan was remitted to the lender for forgiveness. Upon loan forgiveness, the Company recognized a gain on the extinguishment of debt of $ 233,000 for the loan proceeds received and interest accrued in the condensed consolidated statements of operations for the six months ended June 30, 2021. 6. Stockholders’ Equity January 2021 Private Placement — On January 25, 2021, the Company completed a private placement of 4,420,863 shares of the Company’s common stock at a purchase price per share of $ 3.07 , pre-funded warrants to purchase an aggregate of 140,065 shares of the Company’s common stock (the “ January 2021 Pre-Funded Warrants ”) at a purchase price per pre-funded warrant of $ 3.069 and warrants to purchase an aggregate of 3,420,696 shares of the Company’s common stock with an exercise price of $ 3.00 per warrant (the “ January 2021 Warrants ”) (the “ Private Placement ”). In connection with the Private Placement, the Company issued warrants to the placement agent, H.C. Wainwright & Co., LLC (“ HCW ”), to purchase a total of 342,070 shares of the Company’s common stock at an exercise price of $ 3.8375 per warrant (the “ January 2021 Placement Agent Warrants ”). Net proceeds to the Company from the Private Placement were $ 12,669,000 after deducting placement agent fees and offering expenses. February 2021 Registered Direct Offering — On February 17, 2021, the Company completed a registered direct offering of 2,246,784 shares of the Company’s common stock at a purchase price of $ 3.42 per share (the “ Offering ”). In connection with the Offering, the Company issued warrants to the placement agent, HCW, to purchase a total of 168,509 shares of the Company’s common stock at an exercise price of $ 4.275 per warrant (the “ February 2021 Placement Agent Warrants ”). Net proceeds to the Company from the Offering were $ 6,908,000 after deducting placement agent fees and offering expenses. Warrants The Company first assesses the warrants it issues under the FASB ASC Topic 480, “ Distinguishing Liabilities from Equity ” (“ ASC 480 ”) to determine whether they are within the scope of ASC 480. As there were no instances outside of the Company’s control that could require cash settlement from any of the warrant series issued in the Company’s financing transactions, the Company’s outstanding warrants are outside the scope of ASC 480. 10 The Company then applies and follows the applicable accounting guidance in the FASB ASC Topic 815, “ Derivatives and Hedging. ” Financial instruments are accounted for as either derivative liabilities or equity instruments depending on the specific terms of the agreement. The warrants issued by the Company do not meet the definition of a derivative instrument as they are indexed to the Company’s common stock and classified within stockholders’ equity. Based on this determination, the Company’s warrants are classified within stockholders’ equity. The following table summarizes the Company’s outstanding equity-classified warrants at June 30, 2022: Schedule of outstanding warrants Exercise Expiration Balance December 31, Warrants Warrants Warrants Balance June 30, Description Price Date 2021 Issued Exercised Expired 2022 April 2018 Warrants $ 173.25 5/31/2023 20,599 – – – 20,599 April 2018 Placement Agent Warrants $ 223.00 4/9/2023 1,373 – – – 1,373 October 2018 Warrants $ 10.45 10/3/2025 389,610 – – – 389,610 October 2018 Underwriter Warrants $ 13.06 10/1/2023 29,220 – – – 29,220 November 2019 Placement Agent Warrants $ 6.875 11/18/2024 13,636 – – – 13,636 February 2020 Registered Direct Warrants $ 8.71 8/6/2025 197,056 – – – 197,056 February 2020 Placement Agent Warrants $ 11.0375 2/4/2025 14,779 – – – 14,779 February 2020 Warrants $ 4.00 2/13/2025 1,326,500 – – – 1,326,500 February 2020 Underwriter Warrants $ 5.00 2/11/2025 150,000 – – – 150,000 April 2020 Warrants $ 2.21 10/2/2025 428,266 – – – 428,266 April 2020 Placement Agent Warrants $ 2.9188 3/31/2025 41,756 – – – 41,756 January 2021 Warrants $ 3.00 7/27/2026 3,420,696 – – – 3,420,696 January 2021 Placement Agent Warrants $ 3.8375 7/27/2026 342,070 – – – 342,070 February 2021 Placement Agent Warrants $ 4.275 2/12/2026 168,509 – – – 168,509 6,544,070 – – – 6,544,070 No warrants were exercised during the three months ended June 30, 2022 and 2021 and during the six months ended June 30, 2022. The Company received net proceeds of $ 2,146,000 from the exercise of warrants during the six months ended June 30, 2021. 7. Net Loss per Common Share The following table sets forth the potential common shares excluded from the calculation of net loss per common share because their inclusion would be anti-dilutive: Schedule of antidilutive stock June 30, 2022 2021 Options to purchase common stock 2,099 2,499 Unvested restricted stock units 686,974 335,379 Warrants to purchase common stock 6,544,070 6,567,303 Total 7,233,143 6,905,181 11 8. Stock-based Compensation Restricted Stock Units Restricted stock units (“ RSUs ”) are issued under the Company’s 2020 Long-Term Incentive Plan (the “ 2020 Plan ”) or as inducement grants issued outside of the 2020 Plan to new employees. RSUs are generally subject to graded vesting and the satisfaction of certain service requirements. Upon vesting, each outstanding RSU will be exchanged for one share of the Company’s common stock. Employee RSU recipients may elect to net share settle upon vesting, in which case the Company pays the employee’s income taxes due upon vesting and withholds a number of shares of equal value. The fair value of the RSUs awarded are based upon the Company’s closing stock price at the grant date and are expensed over the requisite service period. The following table summarizes the activity of the Company’s RSUs for the six months ended June 30, 2022: Schedule of RSU activity Number of Shares Weighted- Average Grant Date Fair Value Per Share Unvested units at December 31, 2021 367,101 $ 3.21 Granted 675,000 0.86 Vested ( 155,317 ) 3.27 Forfeited ( 199,810 ) 1.61 Unvested units at June 30, 2022 686,974 $ 1.36 Stock-based compensation expense related to RSUs was $ 82,000 and $ 124,000 for the three months ended June 30, 2022 and 2021, respectively. Stock-based compensation expense related to RSUs was $ 261,000 and $ 181,000 for the six months ended June 30, 2022 and 2021, respectively. The aggregate fair value of awards that vested during the six months ended June 30, 2022 and 2021 was $ 128,000 and $ 8,000 , respectively, which represents the market value of the Company’s common stock on the date that the RSUs vested. As of June 30, 2022, the compensation expense for all unvested RSUs in the amount of approximately $768,000 will be recognized in the Company’s results of operations over a weighted average period of 2.08 years. Stock Options Stock options are issued under the 2020 Plan or as inducement grants issued outside of the 2020 Plan to new employees. Stock options are generally subject to graded vesting and the satisfaction of certain service requirements. Upon the exercise of a stock option, the Company issues new shares and delivers them to the recipient. The Company does not expect to repurchase shares to satisfy stock option exercises. The Company uses the Black-Scholes option-pricing model to determine the fair value of all its option grants. The risk-free interest rate used for each grant was based upon the yield on zero-coupon U.S. Treasury securities with a term similar to the expected life of the related option. The Company’s expected stock price volatility assumption is based upon the Company’s own implied volatility. As the Company has limited stock option exercise information, the expected life assumption used for option grants is based upon the simplified method provided for under ASC 718. The dividend yield assumption is based upon the fact that the Company has never paid cash dividends and presently has no intention of paying cash dividends. The Company did not grant stock options during the three and six months ended June 30, 2022 and 2021. 12 The following table summarizes the activity of the Company’s stock options for the six months ended June 30, 2022: Schedule of Stock Option Activity Number of Shares Weighted- Average Exercise Price Per Share Aggregate Intrinsic Value Balance at December 31, 2021 2,499 $ 3,401.90 Granted – – Exercised – – Cancelled ( 400 ) 13,349.97 Balance at June 30, 2022 2,099 $ 1,506.13 $ – Exercisable at June 30, 2022 1,826 $ 1,716.58 $ – Stock-based compensation expense related to stock options for the three months ended June 30, 2022 and 2021 was $ 1,000 and $ 8,000 , respectively. Stock-based compensation expense related to stock options for the six months ended June 30, 2022 and 2021 was $ 8,000 and $ 18,000 , respectively. As of June 30, 2022, the compensation expense for all unvested stock options in the amount of approximately $5,000 will be recognized in the Company’s results of operations over a weighted average period of 0.09 years. Compensation Expense Related to Equity Awards The following table sets forth total stock-based compensation expense for the three and six months ended June 30, 2022 and 2021, in thousands: Schedule of stock based compensation expense Three Months Ended Six Months Ended June 30, June 30, 2022 2021 2022 2021 Research and development $ 53 $ 31 $ 109 $ 44 General and administrative 30 101 160 155 Total stock-based compensation $ 83 $ 132 $ 269 $ 199 9. Collaboration Agreements In March 2021, the Company entered into a clinical co-development collaboration agreement with AgonOx, Inc. (“ AgonOx ”), a private company developing a pipeline of novel immunotherapy drugs targeting key regulators of the immune response to cancer. Under the clinical development agreement, the companies are working to develop a T cell-based therapy using PH-762 and AgonOx’s “double positive” TIL (“ DP TIL ”) technology. Per the terms of the clinical development agreement, the Company committed to make future payments of up to $ 4,000,000 to reimburse AgonOx for expenses incurred to support a clinical trial with AgonOx’s DP TIL technology and PH-762. The Company will recognize its share of costs arising from research and development activities performed by AgonOx in the Company’s financial statements in the period AgonOx incurs such expense. Phio will be entitled to certain future development milestones and low single-digit sales-based royalty payments from AgonOx’s licensing of its DP TIL technology. There were no reimbursable costs incurred by AgonOx under the clinical development agreement during the three and six months ended June 30, 2022 and 2021. No milestone or sales-based royalty payments from AgonOx have been received to date. 13 ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS In this report, “we,” “our,” “ours,” “us,” “Phio” and the “Company” refers to Phio Pharmaceuticals Corp. and our subsidiary, MirImmune, LLC and the ongoing business operations of Phio Pharmaceuticals Corp. and MirImmune, LLC, whether conducted through Phio Pharmaceuticals Corp. or MirImmune, LLC. This management’s discussion and analysis of financial condition as of June 30, 2022 and results of operations for the three and six months ended June 30, 2022 and 2021 should be read in conjunction with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2021, which was filed with the Securities and Exchange Commission (the “ SEC ”) on March 22, 2022. This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as “intends,” “believes,” “anticipates,” “indicates,” “plans,” “expects,” “suggests,” “may,” “would,” “should,” “potential,” “designed to,” “will,” “ongoing,” “estimate,” “forecast,” “target,” “predict,” “could” and similar references, although not all forward-looking statements contain these words. Forward-looking statements are neither historical facts nor assurances of future performance. These statements are based only on our current beliefs, expectations and assumptions regarding the future of our business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of our control. Risks that could cause actual results to vary from expected results expressed in our forward-looking statements include, but are not limited to, the impact to our business and operations by the ongoing coronavirus pandemic, military conflict between Ukraine and Russia, inflationary pressures, rising interest rates, recession fears, the development of our product candidates, our ability to execute on business strategies, our ability to develop our product candidates with collaboration partners, and the success of any such collaborations, the timeline and duration for advancing our product candidates into clinical development, results from our preclinical and clinical activities, the timing or likelihood of regulatory filings and approvals, the success of our efforts to commercialize our product candidates if approved, our ability to manufacture and supply our product candidates for clinical activities, and for commercial use if approved, the scope of protection we are able to establish and maintain for intellectual property rights covering our technology platform, and our ability to obtain future financing. Our actual results and financial condition may differ materially from those indicated in the forward-looking statements as a result of a number of important factors, including those identified in our Annual Report on Form 10-K for the year ended December 31, 2021 under the heading “Risk Factors” and in other filings the Company periodically makes with the SEC. Therefore, you should not rely on any of these forward-looking statements. Forward-looking statements contained in this Quarterly Report on Form 10-Q speak as of the date hereof and the Company does not undertake to update any of these forward-looking statements to reflect a change in its views or events or circumstances that occur after the date of this report. Overview Phio Pharmaceuticals Corp. (“ Phio ,” “ we ,” “ our ” or the “ Company ”) strives to address the biggest challenges in immuno-oncology by working to create new pathways to a cancer-free future for patients. We are developing therapeutics that leverage our INTASYL™ technology to target both tumor and immune cells by regulating genes to strengthen a patient’s immune system while weakening tumor defense mechanisms. With our INTASYL self-delivering RNAi technology, we aim to bring the benefits of RNA therapeutics into cancer care where other modalities may fall short. We are developing a pipeline of immuno-oncology therapies using our INTASYL technology, which has the ability to attack cancers in multiple ways. Our INTASYL-based therapeutics are used to: (1) strengthen immune cells, including those administered as part of adoptive cell therapy (“ ACT ”), and (2) directly modify cells in the tumor microenvironment (the “ TME ”) to weaken a tumor’s defense mechanisms. These two strategies allow for multiple therapeutic applications of our INTASYL products. 14 In contrast to other RNA technologies and platforms, we believe the self-delivering nature of our INTASYL platform makes it ideally suited for use with ACT treatments, as well as for direct therapeutic use. By using our INTASYL technology during the manufacturing of ACT cell products we can improve the phenotype and function of these cells, potentially leading to better therapeutic outcomes. Multiple inhibitory mechanisms restrain immune cells from effectively eradicating tumors, including immune checkpoints and reduced cell fitness and cell persistence. Furthermore, the immunosuppressive TME can pose a formidable barrier to immune cell infiltration and function. By using INTASYL-based therapeutics administered directly, we can also reprogram cells in the TME to help overcome these immunosuppressive mechanisms. Use of INTASYL To Improve Adoptive Cell Therapy Products ACT consists of the administration of immune cells with antitumor properties to patients to fight cancer after growing the cells in a lab to large numbers. There are several types of ACT, including: 1.) non-engineered cell therapy in which immune cells are grown from the patient’s tumor or blood, such as tumor infiltrating lymphocytes (“ TILs ”), or from donor blood or tissue such as natural killer (“ NK ”) cells, dendritic cells (“ DC ”) or macrophages and 2.) genetically engineered immune cells that are genetically modified to recognize specific tumor proteins and to remain in an activated state (such as T cell receptor technology (“ TCRs ”), chimeric antigen receptor (“ CAR ”) T cells, or CAR-NK cells). Regardless of the source, most of the immune cells used for ACT have several shortcomings that inhibit their full therapeutic potential in patients with solid tumors, which we believe can be overcome with INTASYL-based therapeutics. For example, multiple inhibitory mechanisms restrain immune cells used in ACT from effectively eradicating tumors, including immune checkpoints, reduced cell fitness and cell persistence in addition to other barriers to immune cell infiltration and function occurring mainly in solid tumors. When used in ACT, we believe our INTASYL compounds can improve immune cell function, differentiation and metabolism, in order to make these immune cells more effective without the need for additional complicated manufacturing steps and/or genetic engineering. Our approach builds on well-established methodologies of ACT and involves the treatment of immune cells with our INTASYL compounds ex vivo , or outside the body, while they are growing in the lab and before administering them to the patient. In contrast to other RNA technologies, our INTASYL compounds do not require a delivery vehicle or specialized delivery tools to deliver the RNA drugs into the cells. Therefore, we are able to enhance the function of these cells by merely adding our INTASYL compounds during the expansion process and without the need for genetic engineering, complex delivery vehicles or formulations, or additional complex manufacturing steps, which in themselves may be detrimental to the cells. By adding INTASYL to the cell culture media used during the cell expansion, we can reduce or eliminate the expression of genes that make the immune cells less effective. Our lead product candidate, and our most advanced program being developed by the Company in ACT, is PH-762. PH-762 is an INTASYL compound that activates immune cells to better recognize and kill cancer cells by reducing the expression of the checkpoint protein PD-1, a clinically validated target for immunotherapy. Checkpoint proteins, such as PD-1, normally act as a type of “off switch” that prevent T cells, immune cells that protect the body from cancer cells and infections, from attacking certain cells in the body, such as cancer cells. The expression of PD-1 enables the cancer cell to evade the T cell. Reducing the expression of PD-1 can thereby reduce the ability of cancer cells to avoid T cell detection. Data has shown that PH-762 silences PD-1 checkpoint expression in T cells, thereby removing the “off switch” and enabling T cells to overcome tumor resistance mechanisms, which improves their ability to destroy tumor cells. Preclinical studies show that PH-762 can silence the expression of PD-1 in target human T cells in a potent and durable manner and can increase their tumor cell-killing ability. Patient derived T cells treated with PH-762, in comparison to untreated T cells, were shown to have increased tumor killing potency against tumor cells of the same patient. As a result, we believe that PH-762 in ACT is well-positioned to enhance therapeutic responses in cancer patients. 15 In March 2021, the Company entered into a clinical co-development collaboration agreement (the “ Clinical Agreement ”) with AgonOx, Inc. (“ AgonOx ”) to develop novel T cell-based therapies using PH-762 and AgonOx’s “double positive” TIL (“ DP TIL ”) technology. AgonOx has demonstrated that its DP TIL enriched cell populations have increased tumor killing activity when compared to TILs that were not enriched prior to expansion. Further, preclinical data from our research collaboration with AgonOx has shown that treating DP TILs with PH-762 increases the tumor killing activity of the DP TILs even further (a two-fold increase). As a result, we expect the use of PH-762 treated DP TILs to enhance therapeutic responses in cancer patients. Based on this data, our collaboration with AgonOx will focus on conducting a clinical trial for PH-762 treated DP TILs. Under the Clinical Agreement, we will provide financial support of up to $4 million to AgonOx to conduct a clinical trial in ACT with their DP TIL technology and PH-762. We will be entitled to certain future development milestones and low single-digit sales-based royalty payments from AgonOx’s licensing of its DP TIL technology. Financial support to AgonOx under the Clinical Agreement has not yet commenced. The Company expects to initiate the clinical trial evaluating the use of PH-762 and DP TILs in ACT in the fourth quarter of 2022. PH-762’s use in ACT is not limited to TILs, but can also be used on other forms of T cell-based cell therapy. We presented in vivo data showing that PH-762 significantly enhanced the antitumor efficacy of HER2-targeted CAR-T cells (“ HER2CART ”) in solid tumors. Compared to untreated HER2CART cells, HER2CART cells treated with PH-762 showed a statistically significant and durable inhibition of tumor growth. Analysis of the PH-762 treated HER2CART cells isolated from the tumors suggest that PH-762 enhances CAR-T function through multiple mechanisms including enhanced efficiency, degranulation and promotion of memory/stem populations. We believe that this data provides proof of concept for the application of PD-1 checkpoint silencing with INTASYL in CAR-T cells prior to ACT to enhance the therapeutic efficacy of CAR-T cell therapy in solid tumors. Our second product candidate in development for use in ACT is PH-894. PH-894 is an INTASYL compound that silences the epigenetic protein BRD4, which is an intracellular regulator of gene expression that impacts cell differentiation, and hence, cell function. Like other epigenetic targets, BRD4 is a protein that has been shown to be difficult to target with current drug modalities. Since BRD4 is an intracellular protein, antibody therapies cannot be used and small molecule inhibitors tested to date typically lack the required specificity. As our INTASYL compounds can address intracellular as well as extracellular gene targets with a high level of specificity, we believe there is potential for PH-894 to play a role in boosting the potency of the next generation of T cell products to enhance ACT for solid tumors, and without using genetic manipulation. PH-894 has been shown to improve T cell function and persistence by differentiating T cells into a more active state (stem-cell like memory phenotype). Recent preclinical data was presented showing that silencing BRD4 with PH-894 may be used to improve the characteristics of CAR-T cell products during the activation and expansion phases of the cell manufacturing process. These data demonstrate that PH-894 could enhance the activity of CAR-T cells by improving the quality of the final CAR-T cell product by overcoming immunosuppression, reversing exhaustion, and preserving the characteristics associated with cell persistence. Our INTASYL compound PH-804 is also being developed for use in ACT. PH-804 targets the suppressive immune receptor TIGIT, which is a checkpoint protein present on immune cells, such as T cells and NK cells. Similar to PD-1, cancer cells can suppress the activity of these immune cells by activating TIGIT. This triggers an “off switch,” resulting in tumor immune evasion, which can be prevented by blocking or silencing TIGIT. PH-804 provides powerful dose-dependent silencing of TIGIT that can be seen in both T cells and NK cells. We have shown that PH-804 can silence the expression of TIGIT in these cells, overcoming their “off switch” and thereby becoming “weaponized” to kill cancer cells. Direct Therapeutic Use of INTASYL Towards the Tumor Microenvironment Cancer cells have evolved natural defenses that can suppress the immune system surrounding the tumor, an area called the TME, which decreases the effectiveness of many traditional immunotherapies. Reprogramming different cell types in the TME, such as cancer cells and immune cells, may overcome these natural tumor defenses and decrease resistance to immunotherapy. An optimal treatment therapy should have the ability to address targets both inside and on the surface of tumor and immune cells, creating multiple ways to prevent tumors from evading immune detection. Our INTASYL compounds can target both intracellular and extracellular gene targets and are also being developed for use as direct therapeutics to reprogram the TME, including by local administration and activation of immune cells in the TME, and/or lowering the tumor cell’s defenses. Therefore, we believe INTASYL-based therapeutics can be a novel way of fighting cancer by reprogramming the cells in the TME to make cancer more responsive to a patient’s immune system and to other anti-cancer drugs. 16 Our most advanced program in human clinical trials being developed by the Company in our direct therapeutic programs, is PH-762. We have shown that we can reprogram the TME with PH-762 and achieve local activation of immune cells. Preclinical studies conducted by the Company demonstrated that local administration of PH-762 through intratumoral injection resulted in potent anti-tumoral effects. Treated animals showed a complete and statistically significant inhibition of tumor growth, whereas placebo treated animals displayed exponential tumor growth. In vivo data has shown that intratumoral treatment with PH-762 inhibits tumor growth in a dose dependent fashion in PD-1 responsive and refractory models. Furthermore, on-target efficacy was supported by modulation of immune cell populations toward anti-tumor phenotypes. Importantly, local administration of PH-762 resulted in activity against distant untreated tumors, indicative of a systemic anti-tumor response. The Company believes this data further supports the potential for PH-762 to provide a strong local immune checkpoint blockade without the dose immune-related adverse effects seen with systemic antibody therapy. In January 2022, the Company was granted clinical trial authorization by the French National Agency for the Safety of Medicines and Health Products to proceed with our first in-human clinical trial for PH-762 to treat subjects with melanoma at the Gustave Roussy Institute, one of the largest cancer centers in Europe. This first clinical trial with PH-762 will be a Phase 1b study to evaluate the safety, tolerability, pharmacokinetics and anti-tumor activity of PH-762 in a neoadjuvant setting in subjects with advanced melanoma. Currently, there are no neoadjuvant treatment options approved for these subjects. The clinical trial will feature a dose escalation of PH-762 monotherapy with a maximum of 5 dose escalation cohorts and up to a maximum of 21 subjects. Subjects eligible for enrollment include those with Stage IIIB/IIIC or Stage IV resectable oligometastatic melanoma. Enrolled subjects will receive a weekly dose of PH-762 for four weeks and receive surgical resection surgery of their tumor(s) four weeks after treatment with PH-762. The clinical trial design allows for a data driven evaluation of the recommended Phase 2 dose. The Company has initiated dosing of subjects and the site is open for continued enrollment. The Company anticipates top-line data from the first group of subjects in the first quarter of 2023, however, the impact of the ongoing coronavirus pandemic on the enrollment of subjects in the clinical trial is not yet known and highly difficult to predict; and therefore, may result in delays to our expected timelines. Our second direct to tumor product candidate is PH-894. We have presented data demonstrating that PH-894 resulted in a strong, concentration dependent and durable silencing of BRD4 in T cells, and in various cancer cells. Data published with PH-894 in a hepatocellular carcinoma model showed potent and statistically significant anti-tumoral effects when administered locally. These data show that our PH-894 compound can reprogram T cells and other cells in the TME to provide enhanced therapeutic activity. Similar to PH-762, we’ve shown that local administration of PH-894 in vivo has resulted in a systemic anti-tumor response. After local administration of PH-894 in in vivo studies conducted in colon and liver cancer models, strong anti-tumor efficacy was seen in directly treated, as well as in distant untreated tumors. Additionally, PH-894 enhanced the anti-tumor efficacy of systemic anti-PD-1 antibody therapy for both the locally treated tumors and the untreated tumors. With these data, there is potential for PH-894 to be used in treating patients who do not respond to anti-PD-1 therapy, or with patients who progress after initially responding to such therapy. PH-894 demonstrates the power of our INTASYL compounds to modulate the expression of intracellular and/or commonly considered “undruggable” targets, a limitation for small molecule and antibody therapies. The Company currently expects to finalize IND-enabling studies for PH-894 in the fourth quarter of 2022. We are also investigating the use of INTASYL to target multiple genes in a single formulation. New study data showed that PH-3861, a dual-targeting INTASYL towards PD-1 and BRD4, elicited a complete cure of tumors in an in vivo hepatoma model and outperformed the efficacy of the small molecule and antibody control treatments toward the same targets. In addition, local INTASYL therapy was shown to induce a systemic anti-tumor response with the clearance of untreated distal tumors. The animals which showed a complete cure of their tumors were then rechallenged over two months after the original treatment of PH-3861 by re-implanting hepatoma cancer cells at a different location than the original tumor. All of the animals that were rechallenged with new tumors were cured again without requiring further treatment, while tumors grew steadily in the control group as expected. We believe that these data demonstrate that local administration of PH-3861 provides a durable and systemic anti-tumor immune response that can combat tumor growth. Impact of the Coronavirus Pandemic The Company continues to respond to and monitor the ongoing coronavirus pandemic. The Company’s corporate headquarters and research facility have seen limited impact and, during the three and six months ended June 30, 2022, continued to operate with safety measures in place for the health and well-being of its employees, such as working remotely and flexible scheduling, in accordance with guidance from federal, state and local authorities. The Company believes that that coronavirus pandemic has not had a significant impact on its financial condition and results of operations for the three and six months ended June 30, 2022. However, the extent to which the coronavirus pandemic may materially impact our financial results and operations will depend on a number of factors, including the availability of supplies and services we rely on, the ability to enroll subjects in our clinical trials and the duration of the coronavirus pandemic, which remain difficult to predict and are highly uncertain. While we believe that the coronavirus pandemic has not had a significant impact on our financial condition and results of operations at this time, the potential economic impact brought by the coronavirus pandemic, which may be exacerbated by the global macroeconomic uncertainty from the ongoing conflict between Russia and Ukraine, is difficult to assess or predict. There may be developments outside of our control that require us to adjust our operating plans. Given the nature of the situation, we cannot reasonably estimate the impact of the coronavirus pandemic on our financial condition, results of operations or cash flows in the future. Impact of Inflation Inflation has increased during the period covered by this report and is expected to continue to remain at elevated levels or even increase for the near future. Inflation generally affects us by increasing our cost of labor and certain research and development contract costs. We do not believe inflation has had a material effect on our results of operations during the three and six months ended June 30, 2022. 17 Critical Accounting Policies and Estimates The discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these condensed consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates and base our estimates on historical experience and various other assumptions that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions and could have a material impact on our reported results. There have been no material changes to our critical accounting policies and estimates as compared to those disclosed in the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2021 . Results of Operations The following data summarizes the results of our operations for the periods indicated, in thousands: Three Months Ended June 30, Six Months Ended June 30, Description 2022 2021 Dollar Change 2022 2021 Dollar Change Operating expenses $ 2,521 $ 2,684 $ (163 ) $ 5,161 $ 6,322 $ (1,161 ) Operating loss (2,521 ) (2,684 ) 163 (5,161 ) (6,322 ) 1,161 Net loss (2,531 ) (2,687 ) 156 (5,173 ) (6,094 ) 921 Comparison of the Three and Six Months Ended June 30, 2022 and 2021 Operating Expenses The following table summarizes our total operating expenses, for the periods indicated, in thousands: Three Months Ended June 30, Six Months Ended June 30, Description 2022 2021 Dollar Change 2022 2021 Dollar Change Research and development $ 1,304 $ 1,559 $ (255 ) $ 2,890 $ 3,988 $ (1,098 ) General and administrative 1,217 1,125 92 2,271 2,334 (63 ) Total operating expenses $ 2,521 $ 2,684 $ (163 ) $ 5,161 $ 6,322 $ (1,161 ) Research and Development Expenses Research and development expenses relate to compensation and benefits for research and development personnel, facility-related expenses, supplies, external services, costs to acquire technology licenses, research activities under our research collaborations, expenses associated with preclinical and clinical development activities and other operating costs. Our research and development programs are focused on the development of immuno-oncology therapeutics based on our INTASYL therapeutic platform. Since we commenced operations, research and development expenses have been a significant portion of our total operating expenses and are expected to constitute the majority of our spending for the foreseeable future. 18 Research and development expenses for the three months ended June 30, 2022 decreased 16% as compared with the three months ended June 30, 2021. The decrease in research and development expenses was primarily due to the completion of the preclinical studies with PH-762 required for the Company’s clinical trial as a direct therapeutic and the manufacturing costs of PH-894 totaling approximately $315,000 in the prior year period offset by an increase of approximately $77,000 in personnel-related expenses as a result of a higher headcount. Research and development expenses for the six months ended June 30, 2022 decreased 28% as compared with the six months ended June 30, 2021. The decrease in research and development expenses was primarily due to the completion of the preclinical studies with PH-762 required for the Company’s clinical trial as a direct therapeutic and the manufacturing costs for PH-762 and PH-894 totaling approximately $1,460,000 offset by an increase of approximately $149,000 in personnel-related expenses as a result of a higher headcount and increased third-party professional service fees of approximately $207,000 as the Company prepared for and began its clinical trial with PH-762. General and Administrative Expenses General and administrative expenses relate to compensation and benefits for general and administrative personnel, facility-related expenses, professional fees for legal, audit, tax and consulting services, as well as other general corporate expenses. General and administrative expenses for the three months June 30, 2022 increased 8% as compared with the three months ended June 30, 2021. The increase in general and administrative expenses was primarily due to a total net increase of $130,000 in payroll and executive search-related expenses as a result of the departure of the Company’s CEO. General and administrative expenses for the six months ended June 30, 2022 decreased 3% as compared with the six months ended June 30, 2021. The decrease in general and administrative expenses was primarily due to decreases in legal and patent fees of approximately $255,000 offset by a total net increase of $130,000 in payroll and executive search-related as a result of the departure of the Company’s CEO. Total Other (Expense) Income Total other expense for the three months ended June 30, 2022 and 2021 was consistent quarter over quarter. Total other income for the six months ended June 30, 2022 decreased by $240,000 as compared with the six months ended June 30, 2021, primarily due to the full forgiveness of the Company’s PPP loan in the first quarter of 2021. Liquidity and Capital Resources Historically, the Company’s primary source of funding has been through the sale of its securities. In the future, we will be dependent on obtaining funding from third parties, such as proceeds from the issuance of debt, sale of equity or strategic opportunities, in order to maintain our operations. We have reported recurring losses from operations since inception and expect that we will continue to have negative cash flows from our operations for the foreseeable future. At June 30, 2022, we had cash of $18,020,000 as compared with $24,057,000 at December 31, 2021. We believe that our existing cash at June 30, 2022 should be sufficient to fund operations for at least the next 12 months from the date of the release of the associated financial statements. For information regarding our cash commitments related to the clinical co-development agreement with AgonOx, see Note 9 to our condensed consolidated financial statements. In August 2019, the Company entered into a purchase agreement (the “ Purchase Agreement ”) with Lincoln Park Capital, LLC (“ LPC ”), pursuant to which the Company had the right to sell to LPC up to $10,000,000 in shares of the Company’s common stock, subject to certain limitations and conditions set forth in the agreement. The Purchase Agreement expired in May 2022 and no shares of common stock were sold to LPC under the Purchase Agreement. 19 The following table summarizes our cash flows for the periods indicated, in thousands: Six Months Ended June 30, 2022 2021 Net cash used in operating activities $ (5,898 ) $ (6,521 ) Net cash used in investing activities (114 ) (21 ) Net cash (used in) provided by financing activities (25 ) 21,723 Net (decrease) increase in cash and restricted cash $ (6,037 ) $ 15,181 Net Cash Flow from Operating Activities Net cash used in operating activities decreased primarily due to a decrease in net loss of $921,000 offset by the changes in operating assets and liabilities of $608,000 due to prepayments made for the required IND-enabling studies for PH-894 and payments for the manufacturing of clinical supply batches of PH-762 and PH-894 and $310,000 in non-cash related items primarily due to the full forgiveness of the Company’s PPP loan in the prior year period. Net Cash Flow from Investing Activities Net cash used in investing activities was primarily related to an increase of $93,000 in purchases of laboratory and computer equipment for the Company’s facility as compared to the prior year period. Net Cash Flow from Financing Activities Net cash from financing activities decreased primarily due to the net proceeds of $21,723,000 received by the Company from capital raising activities and warrant exercises in the comparable prior year period. ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK As a smaller reporting company, we are not required to provide this information. ITEM 4. CONTROLS AND PROCEDURES Evaluation of Disclosure Controls and Procedures Our management, with the participation of our interim Principal Executive Officer (who is also acting as our principal financial officer) and our Principal Accounting Officer, evaluated the effectiveness of disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report to ensure that information that we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms. Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives. We believe that a control system, no matter how well designed and operated, cannot provide absolute assurance that the objectives of the control system are met, and no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected. Based on the evaluation of our disclosure controls and procedures as of the end of the period covered by this report, management, with the participation of our interim Principal Executive Officer (who is also acting as our principal financial officer) and our Principal Accounting Officer, concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of such date. Changes in Internal Control Over Financial Reporting There have been no changes in our internal control over financial reporting that occurred during the quarter ending June 30, 2022 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. 20 PART II — OTHER INFORMATION ITEM 1. LEGAL PROCEEDINGS From time to time, the Company may become a party to various legal proceedings and complaints arising in the ordinary course of business. We are not currently a party to any material legal proceedings. ITEM 1A. RISK FACTORS Our business, financial condition or results of operations could be materially adversely affected by the risks set forth in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC on March 22, 2022 and our Quarterly Report on Form 10-Q for the period ended March 31, 2022 filed with the SEC on May 12, 2022. There have been no material changes from those risk factors, except for the additional risk factors set forth below. This Quarterly Report on Form 10-Q also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including these risks. Additional risks not currently known or currently material to us may also harm our business. Unstable market and economic conditions, including elevated and sustained inflation, may have serious adverse consequences on our business, financial condition and stock price. As has been widely reported, we are currently operating in a period of economic uncertainty and capital markets disruption, which has been significantly impacted by domestic and global monetary and fiscal policy, geopolitical instability, an ongoing military conflict between Russia and Ukraine, and historically high domestic and global inflation. In particular, the conflict in Ukraine has exacerbated market disruptions, including significant volatility in commodity prices, as well as supply chain interruptions, and has contributed to record inflation globally. The U.S. Federal Reserve and other central banks may be unable to contain inflation through more restrictive monetary policy and inflation may increase or continue for a prolonged period of time. Inflationary factors, such as increases in the cost of clinical supplies, interest rates, overhead costs and transportation costs may adversely affect our operating results. We continue to monitor these events and the potential impact on our business. Although we do not believe that inflation has had a material impact on our financial position or results of operations to date, we may be adversely affected in the future due to domestic and global monetary and fiscal policy, supply chain constraints, consequences associated with the coronavirus pandemic and the ongoing conflict between Russia and Ukraine, and such factors may lead to increases in the cost of manufacturing our product candidates and delays in initiating studies. In addition, global credit and financial markets have experienced extreme volatility and disruptions in the past several years and the foregoing factors have led to and may continue to cause diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, uncertainty about economic stability and increased inflation. There can be no assurance that further deterioration in credit and financial markets and confidence in economic conditions will not occur. Our general business strategy may be adversely affected by any such economic downturn, volatile business environment or continued unpredictable and unstable market conditions. If the current equity and credit markets deteriorate, or do not improve, it may make any necessary debt or equity financing more difficult, more costly, and more dilutive. Failure to secure any necessary financing in a timely manner and on favorable terms could have a material adverse effect on our growth strategy, financial performance and stock price and could require us to delay or abandon clinical development plans. In addition, there is a risk that one or more of our current service providers, manufacturers and other partners may not survive these difficult economic times, which could directly affect our ability to attain our operating goals. 21 ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS No sales or issuances of unregistered securities occurred that have not previously been disclosed in a Current Report on Form 8-K. ITEM 3. DEFAULTS UPON SENIOR SECURITIES None. ITEM 4. MINE SAFETY DISCLOSURES Not applicable. ITEM 5. OTHER INFORMATION None. ITEM 6. EXHIBITS EXHIBIT INDEX Incorporated by Reference Herein Exhibit Number Description Form Date 3.1 Amended and Restated Bylaws of Phio Pharmaceuticals Corp. Current Report on Form 8-K (File No. 001-36304) May 2, 2022 31.1 Sarbanes-Oxley Act Section 302 Certification of Principal Executive Officer and Principal Financial Officer. * 32.1 Sarbanes-Oxley Act Section 906 Certification of Principal Executive Officer and Principal Financial Officer. ** 101.INS Inline XBRL Instance Document.* 101.SCH Inline XBRL Taxonomy Extension Schema Document.* 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document.* 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document.* 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document.* 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document.* 104 The cover page for this report, formatted in Inline XBRL (included in Exhibit 101).* * Filed herewith. ** Furnished herewith and not deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section or incorporated by reference into any filing under the Securities Act or the Exchange Act. 22 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Phio Pharmaceuticals Corp. By: /s/ Geert Cauwenbergh Geert Cauwenbergh, Dr. Med. Sc. Principal Executive and Financial Officer, Director Date: August 11, 2022 23