Biostage, Inc. Contracts & Agreements

Exclusive Distribution Agreement, between Harvard Apparatus Regenerative Technology, Inc. and Health Regen, Inc., dated October 31, 2024 (Filed With SEC on November 6, 2024)

Securities Purchase Agreement (Filed With SEC on August 21, 2024)

Form of Securities Purchase Agreement (Filed With SEC on April 17, 2024)

Bridge Note dated as of February 1, 2024, by Harvard Apparatus Regenerative Technology, Inc. in favor of Junli He (Filed With SEC on February 6, 2024)

Third Amended and Restated Equity Incentive Plan, as amended (Filed With SEC on November 13, 2023)

Amendment to Employment Agreement, dated as of July 10, 2023, by and between Biostage, Inc. and Junli He (Filed With SEC on July 10, 2023)

Form of Securities Purchase Agreement (Filed With SEC on April 6, 2023)

Employment Agreement between Biostage, Inc. and Jerry He (Filed With SEC on March 14, 2023)

Sublicense Agreement dated as of December 7, 2012 between Biostage, Inc. and Harvard Bioscience, Inc., and related Trademark License Agreement, dated December 19, 2002, by and... (Filed With SEC on March 7, 2023)

AMENDED AND RESTATED EMPLOYMENT AGREEMENT (Filed With SEC on January 12, 2023)

Form of Underwriting Agreement (Filed With SEC on October 27, 2022)

Form of Common Stock Purchase Warrant (Filed With SEC on October 27, 2022)

Form of Underwriters Warrant (Filed With SEC on October 27, 2022)

Form of Warrant Agency Agreement between Biostage, Inc. and Computershare (Filed With SEC on October 27, 2022)

Employment Agreement between Biostage, Inc. and Joseph L. Damasio, Jr (Filed With SEC on August 10, 2022)

Form of Warrant (Filed With SEC on May 13, 2022)

Form of Securities Purchase Agreement (Filed With SEC on May 13, 2022)

Preferred Issuance Agreement (Filed With SEC on April 28, 2022)

Form of Warrant (Filed With SEC on November 30, 2021)

Form of Securities Purchase Agreement, dated as of November 26, 2021 (Filed With SEC on November 30, 2021)

Employment Agreement between Biostage, Inc. and David Green (Filed With SEC on November 30, 2021)

Form of Warrant (Filed With SEC on September 8, 2021)

Form of Securities Purchase Agreement, dated as of September 1, 2021 (Filed With SEC on September 8, 2021)

Form of Warrant (Filed With SEC on June 22, 2021)

Form of Securities Purchase Agreement, dated as of June 17, 2021 (Filed With SEC on June 22, 2021)

Consulting Agreement, executed October 6, 2020, between Biostage, Inc. and Danforth Advisors, LLC (Filed With SEC on October 30, 2020)

Securities Purchase Agreement by and between Biostage, Inc. and Dao Capital Group Limited, dated August 18, 2020 (Filed With SEC on August 20, 2020)

Securities Purchase Agreement by and between Biostage, Inc. and Dao Capital Group Limited, dated August 20, 2020 (Filed With SEC on August 20, 2020)

Promissory Note, dated as of May 1, 2020, by Biostage, Inc. in favor of Bank of America, NA (Filed With SEC on May 5, 2020)

Description of Securities (Filed With SEC on March 27, 2020)

Offer Letter by and between Biostage, Inc. and Peter Chakoutis, dated as of March 24, 2020 (Filed With SEC on March 24, 2020)

Separation and Release Agreement by and between Biostage, Inc. and James McGorry (Filed With SEC on February 7, 2020)

Form of Common Stock Purchase Warrant (Filed With SEC on January 2, 2020)

Securities Purchase Agreement dated as of December 31, 2019 (Filed With SEC on January 2, 2020)

Form of Amendment to Common Stock Purchase Warrant (Filed With SEC on December 18, 2019)

Form of Warrant (Filed With SEC on June 17, 2019)

Securities Purchase Agreement between the Company and Junli He, dated as of June 12, 2019 (Filed With SEC on June 17, 2019)

Separation and Release Agreement by and between Biostage, Inc. and Thomas McNaughton (Filed With SEC on June 17, 2019)

2013 Equity Incentive Plan, as amended (Filed With SEC on March 29, 2019)

Director Compensation Arrangements (Filed With SEC on March 29, 2019)

Offer Letter, executed June 4, 2018, between Biostage, Inc. and William Fodor, PhD (Filed With SEC on July 10, 2018)

Securities Purchase Agreement between the Company and Du Xiaoyu, dated as of May 29, 2018 (Filed With SEC on May 31, 2018)

Securities Purchase Agreement between the Company and Chu Bogang, dated as of May 1, 2018 (Filed With SEC on May 3, 2018)

Securities Purchase Agreement between the Company and Zhou Heping, dated as of May 1, 2018 (Filed With SEC on May 3, 2018)

Securities Purchase Agreement between the Company and Jinhui Liu, dated as of February 2, 2018 (Filed With SEC on February 8, 2018)

Form of Warrant (Filed With SEC on January 3, 2018)

Securities Purchase Agreement between the Company and the Purchasers listed therein, dated as of December 27, 2017 (Filed With SEC on January 3, 2018)

Securities Purchase Agreement between the Company and Connecticut Childrens Medical Center, dated as of December 29, 2017 (Filed With SEC on January 3, 2018)

Memorandum of Understanding by and between Biostage, Inc. and Bin Zhao, dated December 11, 2017 (Filed With SEC on December 14, 2017)

COMMON STOCK PURCHASE WARRANT BIOSTAGE,INC. (Filed With SEC on August 17, 2017)

AMENDMENT NO. 2 TO SHAREHOLDER RIGHTS AGREEMENT (Filed With SEC on August 17, 2017)

SECURITIESPURCHASE AGREEMENT (Filed With SEC on August 17, 2017)

MEMORANDUM OF UNDERSTANDING (Filed With SEC on June 27, 2017)

FORM OF COMMON STOCK PURCHASE WARRANT BIOSTAGE,INC. (Filed With SEC on February 7, 2017)

430 Park Avenue | New York, New York 10022 |212 ###-###-#### Security services provided by H.C. Wainwright& Co., LLC | Member: FINRA/SIPC (Filed With SEC on February 7, 2017)

430Park Avenue | New York, New York 10022 | 212 ###-###-#### | www.hcwco.com Member:FINRA/SIPC (Filed With SEC on February 7, 2017)

FORM OF SECURITIES PURCHASE AGREEMENT (Filed With SEC on February 7, 2017)

430 Park Avenue | New York, New York 10022| 212 ###-###-#### Security services provided by H.C. Wainwright& Co., LLC | Member: FINRA/SIPC (Filed With SEC on May 20, 2016)

COMMON STOCK PURCHASE WARRANT BIOSTAGE,INC. (Filed With SEC on May 16, 2016)

SECURITIESPURCHASE AGREEMENT (Filed With SEC on May 16, 2016)

430 Park Avenue | New York, New York 10022 |212 ###-###-#### Security services provided by H.C. Wainwright& Co., LLC | Member: FINRA/SIPC (Filed With SEC on May 16, 2016)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on March 24, 2016)

REGISTRATION RIGHTS AGREEMENT (Filed With SEC on December 15, 2015)

COMMON STOCK PURCHASE AGREEMENT (Filed With SEC on December 15, 2015)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. EMPLOYMENT AGREEMENT (Filed With SEC on August 14, 2015)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. EMPLOYMENT AGREEMENT (Filed With SEC on July 6, 2015)

HARVARDAPPARATUS REGENERATIVE TECHNOLOGY, inc. 1,800,000SHARES OF COMMON STOCK AND 695,857SHARES OF SERIES b CONVERTIBLE PREFERRED STOCK UNDERWRITINGAGREEMENT (Filed With SEC on February 12, 2015)

AMENDMENT NO. 1 TO SHAREHOLDER RIGHTS AGREEMENT (Filed With SEC on February 12, 2015)

SEPARATION AND DISTRIBUTION AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. DATEDAS OF OCTOBER 31, 2013 (Filed With SEC on November 6, 2013)

INTELLECTUAL PROPERTY MATTERS AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. and HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC. Dated as of October 31,2013 (Filed With SEC on November 6, 2013)

PRODUCT DISTRIBUTION AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. DATED AS OF OCTOBER 31, 2013 (Filed With SEC on November 6, 2013)

TAX SHARING AGREEMENT DATED AS OF OCTOBER 31, 2013 BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. (for itself and on behalf of each... (Filed With SEC on November 6, 2013)

TRANSITION SERVICES AGREEMENT DATED AS OF OCTOBER 31, 2013 BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. (Filed With SEC on November 6, 2013)

SUBLEASE (Filed With SEC on November 6, 2013)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. EMPLOYMENT AGREEMENT (Filed With SEC on November 6, 2013)

HarvardApparatus Regenerative Technology, Inc. AND REGISTRAR AND TRANSFER COMPANY AS RIGHTS AGENT SHAREHOLDER RIGHTS AGREEMENT DATED AS OF , 2013 (Filed With SEC on March 26, 2013)

HarvardApparatus Regenerative Technology, Inc. 2013 EQUITY INCENTIVE PLAN (Filed With SEC on March 26, 2013)

Director Compensation Arrangements (Filed With SEC on March 26, 2013)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. (a Delaware corporation) Shares of Common Stock UNDERWRITING AGREEMENT (Filed With SEC on March 20, 2013)

SEPARATION AND DISTRIBUTION AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. DATEDAS OF [—],2013 (Filed With SEC on March 20, 2013)

TRANSITION SERVICES AGREEMENT DATED AS OF [•], 2013 BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. (Filed With SEC on March 20, 2013)

TAX SHARING AGREEMENT DATED AS OF [ ] BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. (for itself and on behalf of each memberof the... (Filed With SEC on March 20, 2013)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. EMPLOYMENT AGREEMENT (Filed With SEC on March 20, 2013)

INDEMNIFICATION AGREEMENT (Filed With SEC on March 20, 2013)

HarvardApparatus Regenerative Technology, Inc. 2013 EQUITY INCENTIVE PLAN (Filed With SEC on March 20, 2013)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. EMPLOYEE STOCK PURCHASE PLAN (Filed With SEC on March 20, 2013)

INCENTIVE STOCK OPTION AGREEMENT TO PURCHASE SHARES OF COMMON STOCK UNDERTHE HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. 2013 EQUITY INCENTIVE PLAN (Filed With SEC on March 20, 2013)

NONQUALIFIED STOCK OPTION AGREEMENT TO PURCHASE SHARES OF COMMON STOCK UNDERTHE HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. 2013 EQUITY INCENTIVE PLAN (Filed With SEC on March 20, 2013)

NONQUALIFIED STOCK OPTION AGREEMENT FOR NON-EMPLOYEE DIRECTORS UNDER THE HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. 2013 EQUITY INCENTIVE PLAN (Filed With SEC on March 20, 2013)

HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. 2013 EQUITY INCENTIVE PLAN DEFERRED STOCK AWARD AGREEMENT (Filed With SEC on March 20, 2013)

PRODUCT DISTRIBUTION AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. DATED AS OF [—],2013 (Filed With SEC on March 20, 2013)

INTELLECTUAL PROPERTY MATTERS AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. and HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC. Dated as of [ • ],2013 (Filed With SEC on March 20, 2013)

EXCLUSIVE LICENSE AGREEMENT (Filed With SEC on March 20, 2013)

SUBLicenseAgreement (Filed With SEC on February 15, 2013)

PRODUCT DISTRIBUTION AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. AND HARVARD APPARATUS REGENERATIVE TECHNOLOGY,INC. DATED AS OF [—],2013 (Filed With SEC on February 15, 2013)

INTELLECTUAL PROPERTY MATTERS AGREEMENT BY AND BETWEEN HARVARD BIOSCIENCE, INC. and HARVARD APPARATUS REGENERATIVE TECHNOLOGY, INC. Dated as of [ • ], 2013 (Filed With SEC on February 15, 2013)

patent RIGHTSASSIGNMENT (Filed With SEC on February 15, 2013)

EXCLUSIVE LICENSE AGREEMENT (Filed With SEC on February 15, 2013)

SPONSORED RESEARCH AGREEMENT (Filed With SEC on February 15, 2013)

[Signature page follows.] [>4?8A8- =0 A;54CNI59 AB@0=8F5.] (Filed With SEC on February 15, 2013)

NOVEL SURGERY AGREEMENT (Filed With SEC on February 15, 2013)

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Biostage, Inc. Contracts & Agreements