Other Information.
−Removed: During the quarter ended March 31, 2026, none of our officers (as defined in Rule 16a-1(f) under the Exchange Act) or directors adopted or terminated a “Rule 10b5-1 trading arrangements” and “non-Rule 10b5-1 trading arrangements” as those terms are defined in Item 408 of Regulation S-K.
−Removed: During the quarter ended December 31, 2025, one of our officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted a “Rule 10b5-1 trading arrangement” for the sale of our common stock, as set forth in the table below.
+Added: During the quarter ended June 30, 2026, one of our directors adopted a “Rule 10b5-1 trading arrangement” as that term is defined in Item 408 of Regulation S-K, as set forth in the table below.
Name and Position
4 unchanged sentences
Expiration Date
−Removed: Mark Novara, Executive Vice President and Chief Commercial Officer
−Removed: December 4, 2025
−Removed: March 31, 2027
+Added: Christopher Twomey , Director
+Added: November 15, 2026
(1) Contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act.
(2) “Non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K under the Exchange Act.
−Removed: Novara’s Rule 10b5-1 trading plan provides for the sale of 6,469 shares of our common stock, plus 10% of the Net Shares of common stock issued to Mr.
−Removed: Novara upon settlement of restricted stock unit and performance stock unit awards.
−Removed: For purposes of the foregoing, “Net Shares” means the number of shares of common stock issued to Mr.
−Removed: Novara net of any shares surrendered to us or sold to cover withholding taxes.
−Removed: The maximum number of shares that could be subject to the Rule 10b5-1 trading plan is 7,481 which represents 6,469 shares of our common stock plus 10% of the number of shares issuable upon settlement of the applicable restricted stock unit and performance stock unit awards, assuming no shares are surrendered or sold to cover withholding tax.
+Added: Twomey’s Rule 10b5-1 trading plan provides for the potential sale of up to 1,700 shares of common stock issuable upon the exercise of certain stock options set to expire on November 15, 2026.
+Added: Except as set forth above, during the quarter ended June 30, 2026, none of our officers (as defined in Rule 16a-1(f) under the Exchange Act) or directors adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” as those terms are defined in Item 408 of Regulation S-K.
Incorporated by Reference Provided Herewith
2 unchanged sentences
3.1 Amended and Restated Certificate of Incorporation of the Registrant (as amended and currently in effect).
−Removed: August 3, 2023 3.1
−Removed: 3.2 Amended and Res tated Bylaws of the Registra nt (as amended and currently in effect).
+Added: 8-K 001-36189
+Added: May 21, 2026 3.1
+Added: 3.2 Amended and Restated Bylaws of the Registrant (as amended and currently in effect).
+Added: 8-K 001-36189
December 30, 2025 3.1
−Removed: 4.1 Indenture, dated as of February 27, 2026, by and between the Company and U.S.
−Removed: Bank Trust Company, National Association, as Trustee.
−Removed: February 27, 2026 4.1
−Removed: 4.2 F orm of Global Note, representing the Company’s 0.00% Convertible Senior Notes due 2032 .
−Removed: February 27, 2026 4.2
−Removed: 10.1 Fo rm of Confirmation for Capped Call Transactions
−Removed: February 27, 2026 10.1
+Added: 10.1 Tandem Diabetes Care, Inc.
+Added: 2023 Long-Term Incentive Plan, as amended.
+Added: 8-K 001-36189 May 21, 2026 10.1
31.1 Certification of John F.
19 unchanged sentences
Tandem Diabetes Care, Inc.
+Added: August 6, 2026
President and Chief Executive Officer
1 unchanged sentence
Principal Executive Officer)
+Added: August 6, 2026
Executive Vice President, Chief Financial Officer and Treasurer
1 unchanged sentence
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.