OTHER INFORMATION
−Removed: Rule 10b5-1 Trading Plans
−Removed: The adoption or termination of contracts, instructions, or written plans for the purchase or sale of our securities by our Section 16 officers and directors for the three months ended March 31, 2026 , each of which is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (“Rule 10b5-1 Plan”), were as follows:
−Removed: Name Title Action Date Adopted Expiration Date Aggregate # of Securities to be Purchased/Sold
−Removed: Matthew Calkins (1)
−Removed: Chief Executive Officer and Chairman of the Board
−Removed: Adoption 03/5/2026 5/28/2027 600,000
−Removed: (1) Matthew Calkins, Chief Executive Officer and Chairman of the Board of Directors, entered into a prearranged stock trading plan pursuant to Rule 10b5-1 on March 5, 2026.
−Removed: Calkins’ plan provides for the potential sale of up to 600,000 shares of Appian Class A common stock.
−Removed: The plan commences on June 8, 2026 and expires on the earlier of the completion of all authorized transactions under the plan or May 28, 2027.
−Removed: O ther than disclosed above, none of our directors or officers adopted or terminated a "non-Rule 10b5-1 trading arrangement" as defined in Item 408 of Regulation S-K.
+Added: The information set forth below is included herein for purposes of providing disclosure under various items of Form 8-K.
+Added: Item 1.01 Entry into a Material Definitive Agreement
+Added: Senior Secured Credit Facilities Credit Agreement
+Added: On August 5, 2026, Appian Corporation (the “Company”) entered into a Senior Secured Credit Facilities Credit Agreement (the “Credit Agreement”) with the several banks and other financial institutions or entities from time to time parties to the Credit Agreement, as lenders (collectively, referred to as the “Lenders”), and Silicon Valley Bank, a division of First-Citizens Bank & Trust Company, as administrative agent and collateral agent for the Lenders (in such capacity, the “Agent”) that replaces the Company’s existing Credit Agreement dated as of November 3, 2022 (as amended by that certain Joinder and First Amendment to Credit Agreement dated as of December 13, 2022, that certain Joinder and Second Amendment to Credit Agreement dated as of February 21, 2023, that certain Third Amendment to Credit Agreement and First Amendment to Guarantee and Collateral Agreement dated as of June 13, 2023, that certain Joinder, Consent and Fourth Amendment to Credit Agreement dated as of February 12, 2024, that certain Fifth Amendment to Credit Agreement dated as of March 12, 2024, that certain Sixth Amendment to Credit Agreement dated as of May 27, 2025, that certain Seventh Amendment to Credit Agreement dated as of September 3, 2025, that certain Eighth Amendment to Credit Agreement dated as of February 18, 2026, and that certain Ninth Amendment to Credit Agreement dated as of May 6, 2026, the “Original Credit Agreement”).
+Added: The Credit Agreement provides for a five-year term loan facility in an aggregate principal amount of $60.0 million and up to $240.0 million for a revolving credit facility, including a letter of credit sub-facility in the aggregate availability amount of $50.0 million (as a sublimit of the revolving loan facility) and a swingline sub-facility in the aggregate availability amount of $25.0 million (as a sublimit of the revolving loan facility).
+Added: The Company will use the proceeds of the facilities to refinance the Company’s existing credit facility under the Original Credit Agreement and for funding general corporate purposes, working capital requirements, and other strategic initiatives.
+Added: Under the Credit Agreement, the Company may elect whether amounts drawn bear interest on the outstanding principal amount at a rate per annum equal to either (a) the higher of the Prime rate or the Federal Funds Effective rate plus 0.5% (“Base Rate”), or (b) the forward-looking term rate based on the secured overnight financing rate (“Term SOFR”), plus a margin.
+Added: The additional interest rate margin ranges from 0.25% to 1% in the case of Base Rate advances and from 1.25% to 2% in the case of Term SOFR advances, depending on the Company’s Consolidated Total Net Leverage Ratio (as defined in the Credit Agreement).
+Added: The Company’s obligations are secured on a senior lien basis by a security interest, in all of the Company’s right, title, and interest in, to and under substantially all of its assets, including its intellectual property, subject to limited exceptions, including permitted liens.
+Added: The Credit Agreement contains customary representations, warranties and covenants, including covenants by the Company limiting additional indebtedness, guaranties, liens, fundamental changes, mergers and consolidations, dispositions of assets, investments, paying dividends on capital stock or redeeming, repurchasing or retiring capital stock, or prepaying certain junior indebtedness and preferred stock, certain corporate changes, and transactions with affiliates.
+Added: The Credit Agreement also provides for customary events of default, including but not limited to non-payment, breaches or defaults in the performance of covenants, insolvency, bankruptcy, and the occurrence of a material adverse effect on the Company.
+Added: The foregoing description of the Credit Agreement does not purport to be complete and is qualified in its entirety by reference to the Credit Agreement to be filed as an exhibit to the Company’s report on Form 10-Q for the quarter ending September 30, 2026, at which time it will be incorporated herein by reference.
+Added: Item 1.02 Termination of a Material Definitive Agreement
+Added: On August 5, 2026, in connection with the Company’s entry into the Credit Agreement, as described in Item 1.01 of this report, the Original Credit Agreement was terminated.
+Added: Proceeds from the Credit Agreement were used to pay off the outstanding principal, interest and fees under the Original Credit Agreement.
+Added: Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
+Added: The information related to the Credit Agreement set forth in Item 1.01 above is incorporated herein by reference under this Item 2.03.
Description Reference
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Previously filed as Exhibit 4.1 to Amendment No.3 to the Registrant’s Registration Statement on Form S-1 (File No.333-217510), filed with the Securities and Exchange Commission on May 12, 2017, and incorporated herein by reference.
−Removed: 10.1 Eighth Amendment to Credit Agreement, dated as of February 18, 2026, by and among Appian Corporation, Silicon Valley Bank, a division of First-Citizens Bank & Trust Company, Wells Fargo Bank, N.A., Comerica Bank, MUFG Bank, Ltd., Customers Bank, The Toronto-Dominion Bank, New York Branch, and The Bank of Nova Scotia.
+Added: 4.3 Amended and Restated 2017 Equity Incentive Plan.
+Added: F iled herewith.
+Added: 10.1 Ninth Amendment to Credit Agreement, dated as of May 6, 2026, by and among Appian Corporation, Silicon Valley Bank, a division of First-Citizens Bank & Trust Company, Wells Fargo Bank, N.A., Comerica Bank, MUFG Bank, Ltd., Customers Bank, The Toronto-Dominion Bank, New York Branch, and The Bank of Nova Scotia.
Filed herewith.
13 unchanged sentences
APPIAN CORPORATION
−Removed: May 7, 2026 By:
+Added: August 6, 2026 By:
/s/ Matthew Calkins /s/ Srdjan Tanjga
4 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.