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Director and Executive Officer Trading Arrangements
−Removed: During three months ended March 31, 2026, none of our directors or officers adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act or any “non-Rule 10b5-1 trading arrangement” (as defined in Item 408(c) of Regulation S-K).
+Added: During the three months ended June 30, 2026, none of our directors or officers adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act or any “non-Rule 10b5-1 trading arrangement” (as defined in Item 408(c) of Regulation S-K).
The following exhibits are filed as part of, or incorporated by reference into, this Quarterly Report on Form 10-Q.
−Removed: Exhibit Number
−Removed: Amendment No.1 to the Research and Development and Laboratory Lease Agreement, by and between 1430 Harbor Bay Pkwy LLC and Senti Biosciences, Inc .
−Removed: Amendment No.
−Removed: 1 to the Sublease Agreement by and between Senti Biosciences, Inc.
−Removed: and GeneFab, LLC .
−Removed: Amendment No.1 to the Lan dlord ’ s Consent to Subleasse, by and between 1430 Harbor Bay Pkwy LLC , Senti Biosciences, Inc.
−Removed: and GeneFab LLC.
−Removed: L etter Agreement by and be tween Senti Biosciences, Inc.
−Removed: and GeneFab LLC.
+Added: Incorporated by Reference
+Added: Exhibit Number Description Schedule/Form File No.
+Added: Exhibit Filing Date
+Added: Amended and Restated Certificate of Incorporation of Senti Biosciences Holdings, Inc.
+Added: April 24, 2026
+Added: Amended and Restated Bylaws of Senti Biosciences Holdings, Inc.
+Added: April 24, 2026
+Added: Amended and Restated Designation Agreement, dated as of April 24, 2026, by and among Senti Biosciences Holdings, Inc., Senti Biosciences, Inc.
+Added: and Celadon Partners SPV 24.
+Added: April 24, 2026
+Added: Amended and Restated Designation Agreement, dated as of April 24, 2026, by and among Senti Biosciences Holdings, Inc., Senti Biosciences, Inc.
+Added: and New Enterprise Associates 15, L.P.
+Added: April 24, 2026
+Added: Assignment and Assumption Agreement, dated as of April 24, 2026, by and between Senti Biosciences, Inc.
+Added: and Senti Biosciences Holdings, Inc.
+Added: April 24, 2026
+Added: Senti Biosciences Holdings, Inc.
+Added: Amended and Restated 2016 Stock Incentive Plan.
+Added: April 24, 2026
+Added: Senti Biosciences Holdings, Inc.
+Added: Amended and Restated 2022 Equity Incentive Plan.
+Added: April 24, 2026
+Added: Senti Biosciences Holdings, Inc.
+Added: Amended and Restated 2022 Inducement Plan.
+Added: April 24, 2026
+Added: Senti Biosciences Holdings, Inc.
+Added: Amended and Restated 2022 Employee Stock Purchase Plan.
+Added: April 24, 2026
+Added: Securities Purchase Agreement, dated April 27, 2026, by and among Senti Biosciences Holdings, Inc., Senti Holdings, Inc., Senti Biosciences, Inc.
+Added: and the purchaser named therein .
+Added: Form of Senior Secured Convertible Note of Senti Holdings, Inc.
+Added: Form of Guarantee.
+Added: Form of Registration Rights Agreement, by and among Senti Biosciences Holdings, Inc., Senti Biosciences, Inc.
+Added: and any investor to be named therein.
+Added: Form of Voting Agreement by and among Senti Biosciences Holdings, Inc., Senti Biosciences, Inc.
+Added: and the stockholders to be party thereto.
Certification of Principal Executive Officer Pursuant to Securities Exchange Act Rules 13a-14(a) and 15(d)-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
+Added: Incorporated by Reference
+Added: Exhibit Number Description Schedule/Form File No.
+Added: Exhibit Filing Date
Certification of Principal Accounting and Financial Officer Pursuant to Securities Exchange Act Rules 13a-14(a) and 15(d)-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
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Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent specifically incorporated by reference into such filing.
−Removed: 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 hereunto duly authorized on this 14 th day of May, 2026.
+Added: 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 hereunto duly authorized on this 14 th day of August, 2026.
+Added: August 14, 2026
SENTI BIOSCIENCES HOLDINGS, INC.
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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.