BIOLARGO, INC. 10-Q

Item 5. Other Information None . - 40 - Item 6. Exhibits See the Exhibit Index for a list of exhibits filed as part of this report and incorporated herein by reference. Exhibit Index Incorporated by Reference Herein Exhibit Number Exhibit Description Form File Date 3.1 Amended and Restated Bylaws Form 10-KSB 5/23/2003 3.2 Amended and Restated Certificate of Incorporation for BioLargo, Inc. filed March 16, 2007 Form 10-KSB 5/4/2007 3.3 Certificate of Amendment to Certificate of Incorporation, filed May 25, 2018 Pos Am 6/22/2018 3.4 Certificate of Amendment to Certificate of Incorporation, filed August 30, 2022 Form 10-Q 11/14/2022 4.1 BioLargo, Inc. 2007 Equity Incentive Plan Form 10-QSB 11/19/2007 4.2 Amendment No. 1 to BioLargo 2007 Equity Incentive Plan Def 14C (Exhibit A) 5/2/2011 4.3 Form of Stock Options issued in exchange for reduction in accounts payable. Form 10-K 3/31/2015 4.4 2018 Equity Incentive Plan Form S-8 6/22/2018 4.5 2024 Equity Incentive Plan Form POS AM 4/18/2025 - 41 - Table of Contents 4.6 Revolving Line of Credit Agreement dated June 30, 2020, between Clyra Medical and Vernal Bay Form 8-K 7/7/2020 4.7 Security Agreement dated June 30, 2020, between Clyra Medical and Vernal Bay Form 8-K 7/7/2020 4.8 Revolving Line of Credit Note issued by Clyra Medical to Vernal Bay on June 30, 2020 Form 8-K 7/7/2020 4.9 Warrant issued in BioLargo Unit Offerings (through January 16, 2024) Form 10-Q 8/14/2020 10.1 BioLargo license to Clyra Medical Technologies, Inc., dated March 1, 2024 Form 10-K April 1, 2024 10.2 Clyra Medical Technologies, Inc. license to BioLargo dated March 1, 2024 Form 10-K April 1, 2024 10.3 Form of indemnity agreement between the Company at its officers and directors Form 10-K 3/31/2023 10.4 Commercial Office Lease Agreement for 14921 Chestnut St., Westminster, CA 92683 Form 8-K 8/24/2016 10.5† Employment Agreement with Dennis P. Calvert dated May 2, 2017. Form 8-K 5/4/2017 10.6† Lock-Up Agreement with Dennis P. Calvert dated April 30, 2017 Form 8-K 5/4/2017 10.7 Commercial Office Lease Agreement for Oak Ridge Tennessee Form 8-K 9/8/2017 10.8 Form of Employment Agreement for Engineering Subsidiary Form 8-K 9/8/2017 10.9 Form of Option issued to founding employees of Engineering subsidiary (BLEST) Form 8-K 9/8/2017 10.10† Employment Agreement with Joseph L. Provenzano dated May 28, 2019 Form 8-K 6/24/2019 10.11 Purchase Agreement, dated as of December 13, 2022, by and between BioLargo, Inc. and Lincoln Park Capital Fund, LLC Form 8-K 12/19/2022 10.12 Registration Rights Agreement, dated as of December 13, 2022, by and between BioLargo, Inc. and Lincoln Park Capital Fund, LLC Form 8-K 12/19/2022 10.13† 2023 Engagement Extension Agreement with CFO Form 8-K 3/27/2023 10.14 Form of Share Exchange Agreement between BioLargo, Inc., and purchasers of Clyra Medical Series A Preferred Stock Form 10-Q 5/17/2023 - 42 - Table of Contents 10.15 Form of Share Exchange Agreement between BioLargo, Inc., and purchasers of BioLargo Energy Technologies, Inc. common stock Form 10-Q 5/17/2023 10.16† 2024 Engagement Extension Agreement with CFO Form 10-Q 8/15/2024 10.17 License Agreement between BioLargo, Inc., and Ikigai Holdings, LLC, dated May 17, 2021 filed herewith 10.18 First amendment to License Agreement between BioLargo, Inc., and Ikigai Holdings, LLC, dated August 16, 2021 filed herewith 10.19 Preferred Master Manufacturing Agreement between ONM Environmental, Inc., and Ikigai Holdings, LLC, dated July 9, 2021 filed herewith 10.20 First amendment to Preferred Master Manufacturing Agreement between ONM Environmental, Inc., and Ikigai Holdings, LLC, dated June 6, 2025 filed herewith 31.1* Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and Rules 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934 filed herewith 31.2* Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and Rules 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934 filed herewith 32* Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 filed herewith 101.INS** Inline XBRL Instance 101.SCH** Inline XBRL Taxonomy Extension Schema 101.CAL** Inline XBRL Taxonomy Extension Calculation 101.DEF** Inline XBRL Taxonomy Extension Definition 101.LAB** Inline XBRL Taxonomy Extension Labels 101.PRE** Inline XBRL Taxonomy Extension Presentation 104 Cover Page Interactive Data File (embedded within the Inline XBRL document and contained in Exhibit 101) * Filed herewith ** Furnished herewith † Management contract or compensatory plan, contract or arrangement 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. Date: August 14, 2025 BIOLARGO, INC. By: /s/ DENNIS P. CALVERT Dennis P. Calvert Chief Executive Officer Date: August 14, 2025 By: /s/ CHARLES K. DARGAN, II Chief Financial Officer - 43 -