Petra Acquisition Inc. | Business Contracts

Subscription and Investment Representation Agreement, dated December 19, 2022, by and between Revelation Biosciences, Inc. and the purchaser signatory thereto (Filed With SEC on December 21, 2022)

Form of Placement Agency Agreement (Filed With SEC on November 29, 2022)

Form of Lock-Up Agreement (Filed With SEC on October 31, 2022)

Executive Employment Agreement between Revelation Biosciences, Inc. and Chester Zygmont,III, effective July27, 2021 (Filed With SEC on September 20, 2021)

Form of Securities Purchase Agreement (Filed With SEC on November 29, 2022)

Form of Placement Agent Common Stock Warrant (Filed With SEC on November 29, 2022)

Form of Class C Common Stock Warrant (Filed With SEC on November 29, 2022)

Form of Placement Agency Agreement (Filed With SEC on November 16, 2022)

Form of Class C Common Stock Warrant (Filed With SEC on November 16, 2022)

Form of Placement Agent Common Stock Warrant (Filed With SEC on October 31, 2022)

Form of Placement Agent Common Stock Purchase Warrant dated July 28, 2022 (Filed With SEC on October 31, 2022)

Warrant Agency Agreement with Continental Stock Transfer & Trust Co. dated July 28, 2022 (Filed With SEC on October 31, 2022)

Form of Class C Common Stock Warrant (Filed With SEC on October 31, 2022)

Form of Pre-Funded Common Stock Purchase Warrant (Filed With SEC on October 31, 2022)

Form of Securities Purchase Agreement (Filed With SEC on October 31, 2022)

Form of Warrant Agency Agreement with Continental Stock Transfer & Trust Co (Filed With SEC on October 31, 2022)

Form of Securities Purchase Agreement dated July 28, 2022 (Filed With SEC on October 31, 2022)

Form of Placement Agency Agreement dated July 28, 2022 (Filed With SEC on October 31, 2022)

Form of Placement Agency Agreement (Filed With SEC on October 31, 2022)

Form of Common Stock Warrant dated July 28, 2022 (Filed With SEC on October 31, 2022)

Form of Placement Agent Warrant (Filed With SEC on August 1, 2022)

Form of Warrant (Filed With SEC on August 1, 2022)

Form of Securities Purchase Agreement (Filed With SEC on August 1, 2022)

Form of Warrant Agency Agreement with Continental Stock Transfer & Trust Co (Filed With SEC on July 21, 2022)

Form of Placement Agency Agreement (Filed With SEC on July 13, 2022)

Form of Lock-Up Agreement (Filed With SEC on July 13, 2022)

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

Form of Placement Agent Common Stock Purchase Warrant (Filed With SEC on July 13, 2022)

Form of Pre-Funded Common Stock Purchase Warrant (Filed With SEC on July 13, 2022)

Form of Common Stock Purchase Agreement (Filed With SEC on July 13, 2022)

Description of Securities (Filed With SEC on April 15, 2022)

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

Form of Unregistered Pre-Funded Common Stock Purchase Warrant (Filed With SEC on January 27, 2022)

Form of Unregistered Placement Agent Warrant (Filed With SEC on January 27, 2022)

Securities Purchase Agreement dated January 23, 2022 by and between the Company and the Purchaser (Filed With SEC on January 27, 2022)

Registration Rights Agreement dated January 23, 2022 by and between the Company and the Purchaser (Filed With SEC on January 27, 2022)

Escrow Agreement dated December 21, 2021 between Petra Acquisition , Inc., Continental Stock Transfer & Trust Company, Meteora Special Opportunity Fund I, LP and Meteora Capital... (Filed With SEC on December 23, 2021)

Forward Purchase Share Agreement, dated December 21, 2021, among Petra Acquisition, Inc,, Meteora Special Opportunity Fund I, LP, and Meteora Capital Partners, LP (Filed With SEC on December 23, 2021)

Agreement dated December 17, 2021 by and between Petra Acquisition, Inc. and Monashee Investment Management LLC (Filed With SEC on December 23, 2021)

Agreement dated December 17, 2021 by and between Petra Acquisition, Inc. and LifeSci venture Master SPV LLC (Filed With SEC on December 23, 2021)

Agreement dated December 21, 2021 by and between Petra Acquisition, Inc. and George Tidmarsh (Filed With SEC on December 23, 2021)

Agreement dated December 20, 2021 by and between Petra Acquisition, Inc. and Revelation Biosciences, Inc (Filed With SEC on December 23, 2021)

Note Cancellation Agreement by and between the Registrant and Pine Valley Investments, LLC (Filed With SEC on October 19, 2021)

Promissory Note, dated as of October 13, 2021 from the Registrant to Jared Solomon (Filed With SEC on October 19, 2021)

Promissory Note, dated as of October 13, 2021 from the Registrant to Miro Kesic (Filed With SEC on October 19, 2021)

Promissory Note, dated as of October 13, 2021 from the Registrant to T3 Investments, LLC (Filed With SEC on October 19, 2021)

Amendment, dated September 17, 2021, to the Engagement Letter Agreement dated November 3, 2020 by and between the Registrant and LifeSci Capital LLC (Filed With SEC on September 23, 2021)

Engagement Letter Agreement dated November 3, 2020 by and between the Registrant and LifeSci Capital LLC (Filed With SEC on September 23, 2021)

(Filed With SEC on September 20, 2021)

REVELATIONBIOSCIENCES, INC. COMMON STOCK WARRANT January 31, 2021 Void After January 31, 2027 (Filed With SEC on September 20, 2021)

Executive Employment Agreement between Revelation Biosciences, Inc. and James Rolke, effective July27, 2021 (Filed With SEC on September 20, 2021)

Form of Letter Agreement from each of the Registrants initial shareholders, officers and directors (Filed With SEC on March 31, 2021)

Description of Registrants Securities (Filed With SEC on March 31, 2021)

Registration Rights Agreement, dated October 7, 2020, between the Company and Investors (Filed With SEC on October 13, 2020)

Investment Management Trust Agreement, dated October 7, 2020, between Continental Stock Transfer & Trust Company and the Company (Filed With SEC on October 13, 2020)

Underwriting Agreement, dated October 7, 2020, by and among the Company and LifeSci Capital LLC and Ladenburg Thalmann & Co. Inc., as representatives of the several underwriters (Filed With SEC on October 13, 2020)

Warrant Agreement, dated October 7, 2020, between Continental Stock Transfer & Trust Company and the Company (Filed With SEC on October 13, 2020)

Subscription Agreement, dated October 7, 2020, between the Company and Petra Investment Holdings LLC (Filed With SEC on October 13, 2020)

Escrow Agreement, dated October 7, 2020, by and among the Company, Continental Stock Transfer & Trust Company and the Companys Initial Stockholders (Filed With SEC on October 13, 2020)

Business Combination Marketing Agreement, dated October 7, 2020, by and among the Company, LifeSci Capital LLC, Ladenburg Thalmann & Co. Inc., Northland Securities, Inc., and... (Filed With SEC on October 13, 2020)

Form of Stock Escrow Agreement (Filed With SEC on September 21, 2020)

Form of Registration Rights Agreement (Filed With SEC on September 21, 2020)

Form of Underwriting Agreement (Filed With SEC on September 21, 2020)

Form of Business Combination Marketing Agreement (Filed With SEC on August 26, 2020)

Form of Letter Agreement from each of the Registrants sponsor, initial stockholder, officers and directors (Filed With SEC on August 26, 2020)

Form of Underwriting Agreement (Filed With SEC on August 26, 2020)

Form of Warrant Agreement (Filed With SEC on August 26, 2020)

Form of Registration Rights Agreement (Filed With SEC on August 26, 2020)

Form of Investment Management Trust Agreement between Continental Stock Transfer& Trust Company and the Registrant (Filed With SEC on August 26, 2020)

Form of Subscription Agreement for Private Warrants by Petra Investment Holdings, LLC (Filed With SEC on August 26, 2020)

Form of Stock Escrow Agreement (Filed With SEC on August 26, 2020)

Form of Warrant Agreement (Filed With SEC on August 19, 2020)

Form of Underwriting Agreement (Filed With SEC on August 19, 2020)

Specimen Unit Certificate (Filed With SEC on August 19, 2020)

Specimen Warrant Certificate (Filed With SEC on August 19, 2020)

Form of Letter Agreement from each of the Registrants sponsor, initial stockholder, officers and directors (Filed With SEC on August 19, 2020)

Form of Registration Rights Agreement (Filed With SEC on August 19, 2020)

Form of Subscription Agreement for Private Warrants by Petra Investment Holdings, LLC (Filed With SEC on August 19, 2020)

Form of Stock Escrow Agreement (Filed With SEC on August 19, 2020)

Form of Stock Escrow Agreement (Filed With SEC on August 11, 2020)

Form of Registration Rights Agreement (Filed With SEC on August 11, 2020)

Form of Investment Management Trust Agreement between Continental Stock Transfer& Trust Company and the Registrant (Filed With SEC on August 11, 2020)

Form of Letter Agreement from each of the Registrants sponsor, initial stockholder, officers and directors (Filed With SEC on August 11, 2020)

Form of Warrant Agreement (Filed With SEC on August 11, 2020)

Specimen Common Stock Certificate (Filed With SEC on July 29, 2020)

Specimen Unit Certificate (Filed With SEC on July 29, 2020)

Form of Business Combination Marketing Agreement (Filed With SEC on July 29, 2020)

Specimen Warrant Certificate (Filed With SEC on July 29, 2020)

Promissory Note (Filed With SEC on July 29, 2020)

Form of Subscription Agreement for Private Warrants by Petra Investment Holdings, LLC (Filed With SEC on July 29, 2020)

Form of Underwriting Agreement (Filed With SEC on July 29, 2020)

Petra Acquisition Inc. (91)