Mountain Crest Acquisition Corp. V — fact timeline

Mountain Crest Acquisition Corp. V incurred loan of up to $500,000 with Mountain Crest Global Holdings LLC maturing the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if a b.

“On December 11, 2025, Mountain Crest Acquisition Corp. V (the “Company”) issued an unsecured promissory note in the aggregate principal amount up to $500,000 (the “Note”) to Mountain Crest Global Holdings LLC, the Company’s sponsor (the “Sponsor”).”

Mountain Crest Acquisition Corp. V: Amended charter to extend Business Combination Period to November 16, 2026 (effective 2025-11-05).

“As approved by its stockholders at the annual meeting of stockholders held on November 4, 2025 (the “Annual Meeting”), Mountain Crest Acquisition Corp. V (the “Company”), through amendment number 5 (“Amendment No. 5”), amended its Amended and Restated Certificate of Incorporation (the “Charter”), to (a) modify the terms and extend the date (the “Business Combination Period”) by which the Company has to consummate an initial business combination to November 16, 2026, by revising paragraph E of Article Sixth of the Charter. Amendment No. 5 was filed with the Delaware Secretary of State on November 5, 2025.”

Mountain Crest Acquisition Corp. V engaged WWC, P.C. as its auditor.

“the Company engaged WWC, P.C. ("WWC") as the Company's independent registered public accounting firm to audit the Company's financial statements, effective on August 1, 2025.”

Mountain Crest Acquisition Corp. V dismissed UHY LLP as its auditor.

“the Company dismissed UHY LLP ("UHY") as the Company's independent registered public accounting firm, effective immediately.”

Mountain Crest Acquisition Corp. V incurred loan of up to $500,000 with Mountain Crest Global Holdings LLC at does not bear interest maturing the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if a b.

“On April 25, 2025, Mountain Crest Acquisition Corp. V (the “Company”) issued an unsecured promissory note in the aggregate principal amount up to $500,000 (the “Note”) to Mountain Crest Global Holdings LLC, the Company’s sponsor (the “Sponsor”).”

Mountain Crest Acquisition Corp. V: Extended the business combination period to November 16, 2025, by amending paragraph E of Article Sixth of the Charter (effective 2024-11-08).

“by which the Company has to consummate an initial business combination to November 16, 2025, by revising paragraph E of Article Sixth of the Charter.”

Mountain Crest Acquisition Corp. V incurred loan of up to $300,000 with Mountain Crest Global Holdings LLC at does not bear interest maturing the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if a b.

“On April 30, 2024, Mountain Crest Acquisition Corp. V (the "Company") issued an unsecured promissory note in the aggregate principal amount up to $300,000 (the "Note") to Mountain Crest Global Holdings LLC, the Company's sponsor (the "Sponsor").”

Mountain Crest Acquisition Corp. V entered into Note Conversion Agreement with Mountain Crest Global Holdings LLC valued at $600,000 (effective 2024-04-19).

“On April 19, 2024, as approved by the Company’s audit committee, the Company entered into a note conversion agreement (the “Note Conversion Agreement”) with the Sponsor, to convert the Principal Amount due under the Notes into 150,000 shares of the Company’s common stock”

Mountain Crest Acquisition Corp. V incurred loan of up to $300,000 with Mountain Crest Global Holdings LLC maturing the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if a b.

“On April 3, 2024, Mountain Crest Acquisition Corp. V (the “Company”) issued an unsecured promissory note in the aggregate principal amount up to $300,000 (the “Note”) to Mountain Crest Global Holdings LLC, the Company’s sponsor (the “Sponsor”).”

Mountain Crest Acquisition Corp. V received a nasdaq noncompliance notice notice regarding market value (rules 5550(b)(2)).

“December 13, 2023, Mountain Crest Acquisition Corp. V, a Delaware corporation (the “Company”), received a notice (the “Notice”) from the Nasdaq Stock Market LLC (“Nasdaq”), stating that the Company’s listed securities failed to comply with the $35,000,000 market value of listed securities (“MVLS”) requirement for continued listing on The Nasdaq Capital Market in accordance with Nasdaq Listing Rule 5550(b)(2) based upon the Company’s MVLS for the 30 consecutive business days prior to the date of the Notice. The Notice has no immediate effect on the listing of the Company’s securities on Nasd”

Mountain Crest Acquisition Corp. V incurred loan of up to $400,000 with Mountain Crest Global Holdings LLC at does not bear interest maturing on the earlier of: (i) the date on which Company consummates an initial business combination with a target business, or (ii) the date the Company liquidates if.

“On October 30, 2023, Mountain Crest Acquisition Corp. V (the “Company”) issued an unsecured promissory note in the aggregate principal amount up to $400,000 (the “Note”) to Mountain Crest Global Holdings LLC, the Company’s sponsor (the “Sponsor”).”

Mountain Crest Acquisition Corp. V received a nasdaq deficiency notice notice regarding market value (rules 5450(b)(2)(A), 5450(b)(3)(C)).

“May 18, 2023, the Company received a letter from Nasdaq stating that the Company failed to maintain the minimum 1,100,000 publicly held shares as required by the Nasdaq continued listing rules, and (iii) June 27, 2023, the Company received a letter from Nasdaq stating that the Company’s publicly held shares failed to maintain a minimum Market Value of Publicly Held Shares (“MVPHS”) of $15,000,000 which is a requirement for continued listing on The Nasdaq Global Market in accordance with Nasdaq Listing Rule 5450(b)(3)(C) based upon the Company’s MVPHS for the 30 consecutive business days prior”

Mountain Crest Acquisition Corp. V entered into Note Conversion Agreement with Mountain Crest Global Holdings LLC (Sponsor) valued at $300,000 Note converted into 75,000 shares of Common Stock (effective 2023-09-13).

“On September 13, 2023, as approved by the Company’s audit committee, the Company entered into a note conversion agreement (the “Note Conversion Agreement”) with the Sponsor, to convert the Note into 75,000 shares of the Company’s Common Stock.”

Mountain Crest Acquisition Corp. V entered into Vendor Liability Conversion Agreements with four vendors valued at $1,800,000 of service fees converted into 450,000 shares of Common Stock (effective 2023-09-13).

“On September 13, 2023, Mountain Crest Acquisition Corp. V (the “Company”) entered into four separate vendor liability conversion agreements (the “Vendor Liability Conversion Agreements”) with four of the Company’s vendors.”

Mountain Crest Acquisition Corp. V: Amended Charter Article Sixth to extend business combination period to November 16, 2024, eliminate the $5,000,001 net tangible book value requirement, and remove restrictions on share issuances prior to a business combination (effective 2023-08-21).

“Mountain Crest Acquisition Corp V (the “Company”) filed an amendment No. 3 to its Amended and Restated Certificate of Incorporation (the “Charter”) with the Delaware Secretary of State on August 21, 2023 (the “Amendment No. 3”), to (a) modify the terms and extend the date (the “Business Combination Period”) by which the Company has to consummate an initial business combination (the “Business Combination”) to November 16, 2024, provided that the Company deposits into the trust account (the “Trust Account”) an amount equal to $0.10 per outstanding share of common stock sold in the Company’s initial public offering (the “Public Share”) for each three-month extension commencing on November 17, 2023 by revising paragraph E of Article Sixth of the Charter; (b) eliminate the requirement to maintain $5,000,001 of net tangible book value prior to or upon consummation of a Business Combination (the “NTA Requirement”) by eliminating such requirement set forth in paragraph D of Article Sixth of th”

Mountain Crest Acquisition Corp. V shareholders approved Ratify appointment of UHY LLP as independent registered public accounting firm for year ending December 31, 2023 at the 2023-08-21 meeting.

“FOR AGAINST ABSTAIN Broker Non-Votes 2,291,900 6,803 0 0”

Mountain Crest Acquisition Corp. V shareholders approved Election of two directors to serve until the 2026 annual meeting at the 2023-08-21 meeting.

“Nominee FOR Withheld Broker Non-Votes Todd Milbourn 2,291,900 6,803 0 Wenhua Zhang 2,291,900 6,803 0”

Mountain Crest Acquisition Corp. V shareholders approved Target Amendment Proposal: remove restriction on consummating initial business combination with a target business having principal operations in China at the 2023-08-21 meeting.

“Non-Votes 2,291,900 6,803 0 0 b. NTA Requirement Amendment: FOR AGAINST ABSTAIN Broker Non-Votes 2,291,900 6,803 0 0 c.”

Mountain Crest Acquisition Corp. V shareholders approved Charter Amendment Proposals - Issuance Amendment: permit prior to a Business Combination the issuance of common stock or securities at the 2023-08-21 meeting.

“c. Issuance Amendment: FOR AGAINST ABSTAIN Broker Non-Votes 2,291,900 6,803 0 0”

Mountain Crest Acquisition Corp. V shareholders approved Charter Amendment Proposals - NTA Requirement Amendment: eliminate the NTA Requirement at the 2023-08-21 meeting.

“b. NTA Requirement Amendment: FOR AGAINST ABSTAIN Broker Non-Votes 2,291,900 6,803 0 0”

Mountain Crest Acquisition Corp. V shareholders approved Charter Amendment Proposals - Extension Amendment: modify terms and extend business combination period to November 16, 2024 at the 2023-08-21 meeting.

“a. Extension Amendment: FOR AGAINST ABSTAIN Broker Non-Votes 2,291,900 6,803 0 0”

Mountain Crest Acquisition Corp. V received a nasdaq deficiency notice notice regarding other.

“May 18, 2023, Mountain Crest Acquisition Corp. V, a Delaware corporation (the “Company”), received a notice from the Nasdaq Stock Market LLC (“Nasdaq”), stating that the Company no longer satisfies the requirement to maintain a minimum of 1,100,000 publicly held shares (the “PHS Requirement”) for continued listing on The Nasdaq Global Market, according to the number of publicly held shares reported on its Form 8-K for May 12, 2023. The Company was provided 45 calendar days, or until July 3, 2023, to submit a plan to Nasdaq to regain compliance with the PHS Requirement. The Company submitted su”

Mountain Crest Acquisition Corp. V received a nasdaq noncompliance notice notice regarding market value (rules 5450(b)(3)(C)).

“June 27, 2023, Mountain Crest Acquisition Corp. V, a Delaware corporation (the “Company”), received a notice (the “Notice”) from the Nasdaq Stock Market LLC (“Nasdaq”), stating that the Company’s listed securities failed to maintain a minimum Market Value of Publicly Held Shares (“MVPHS”) of $15,000,000 which is a requirement for continued listing on The Nasdaq Global Market in accordance with Nasdaq Listing Rule 5450(b)(3)(C) (the “MVPHS Requirement”) based upon the Company’s MVPHS for the 30 consecutive business days prior to the date of the Notice. The Notice has no immediate effect on the”

Mountain Crest Acquisition Corp. V terminated Business Combination Agreement with AUM Biosciences Pte. Ltd. valued at Termination of Business Combination Agreement among Mountain Crest Acquisition Corp. V and AUM Biosc (effective 2023-06-08).

“On June 8, 2023, Mountain Crest received a termination notice (the “Notice”) from AUM. The Notice terminated the Business Combination Agreement as of June 8, 2023.”

Mountain Crest Acquisition Corp. V terminated Business Combination Agreement with AUM Biosciences Pte. Ltd. valued at Termination notice received from AUM; Business Combination Agreement terminated as of June 8, 2023. (effective 2023-06-08).

“Item 1.02. Termination of a Material Definitive Agreement As previously disclosed, on October 19, 2022, Mountain Crest Acquisition Corp. V (“Mountain Crest” or “SPAC”) and AUM Biosciences Pte. Ltd., a private company limited by shares incorporated in Singapore, with company registration number 201810204D (“AUM” or the “Company”) entered into that certain Business Combination Agreement (as amended, supplemented or otherwise modified from time to time, the “Business Combination Agreement”), which was subsequently amended on February 10, 2023, March 30, 2023 and April 19, 2023. On January 27, 2023, AUM Biosciences Limited, a Cayman Islands exempted company (“Holdco”), AUM Biosciences Subsidiary Pte. Ltd., a private company limited by shares incorporated in Singapore, with company registration number 202238778Z and a direct, wholly-owned subsidiary of Holdco, and AUM Biosciences Delaware Merger Sub, Inc., a Delaware corporation and a direct, wholly-owned subsidiary of Holdco, executed a jo”

Mountain Crest Acquisition Corp. V received a nasdaq deficiency notice notice regarding other (rules 5450(b)(2)(A)).

“received a notice (the “Notice”) from the Nasdaq Stock Market LLC (“Nasdaq”), stating that the Company no longer complies with the requirement to maintain a minimum of 1,100,000 publicly held shares for continued listing on The Nasdaq Global Market, according to the number of publicly held shares reported on its Form 8-K for May 12, 2023. The Notice has”

Mountain Crest Acquisition Corp. V: Extended the business combination period from May 16, 2023 to February 16, 2024 by filing an amendment to the Amended and Restated Certificate of Incorporation (effective 2023-05-12).

“As approved by its stockholders at the special meeting of Stockholders held on May 12, 2023 (the “Special Meeting”), Mountain Crest Acquisition Corp V (“SPAC”) filed an amendment to its Amended and Restated Certificate of Incorporation with the Delaware Secretary of State on May 12, 2023 (the “Extension Amendment”), giving SPAC the right to extend the time for SPAC to complete its business combination (the “Business Combination Period”) from May 16, 2023 to February 16, 2024.”

Mountain Crest Acquisition Corp. V shareholders approved Extension Amendment - to amend SPAC’s Amended and Restated Certificate of Incorporation to extend the Business Combination Period from May 16, 2023 to February 16, 2024 at the 2023-05-12 meeting.

“Extension Amendment Stockholders approved the proposal to amend SPAC’s Amended and Restated Certificate of Incorporation, giving SPAC the right to extend the Business Combination Period from May 16, 2023 to February 16, 2024. Adoption of the Extension Amendment required approval by the affirmative vote of at least a majority of SPAC’s outstanding shares of common stock. The voting results were as follows: FOR AGAINST ABSTAIN 2,859,700 36,898 0”

Mountain Crest Acquisition Corp. V amended Amendment No. 3 to Business Combination Agreement with AUM Biosciences Pte. Ltd., AUM Biosciences Limited, AUM Biosciences Subsidiary Pte. Ltd., and AUM Biosciences Delaware Merger Sub, Inc. (effective 2023-04-19).

“On April 19, 2023, SPAC, the Company, Holdco, Amalgamation Sub, and Merger Sub entered into an Amendment No. 3 to Business Combination Agreement (the “Amendment No. 3”) to ( 1) amend the definition of “Fully-Diluted Company Shares” and (2) update the Company Interests issued and paid-up as of the Amalgamation Effective Time from 9,841,118 Company Ordinary Shares to 9,125,538 Company Ordinary Shares.”

Mountain Crest Acquisition Corp. V entered into Business Combination Agreement with AUM Biosciences Pte. Ltd. (effective 2022-10-19).

“on October 19, 2022, Mountain Crest Acquisition Corp. V, a Delaware corporation (“SPAC”), entered into a Business Combination Agreement (as it may be amended, supplemented or otherwise modified from time to time) (the “Business Combination Agreement”) with AUM Biosciences Pte. Ltd., a private company limited by shares incorporated in Singapore, with company registration number 201810204D (the “Company”).”

Mountain Crest Acquisition Corp. V received a nasdaq deficiency notice notice regarding market value (rules 5450(b)(2)(A), 5810(c)(3)(A)).

“ved a notice (the “Notice”) from the Nasdaq Stock Market LLC (“Nasdaq”), stating that the Company’s listed securities failed to comply with the $50,000,000 market value of listed securities (“MVLS”) requirement for continued listing on The Nasdaq Global Market in accordance with Nasdaq Listing Rule 5450(b)(2)(A) based upon the Company’s MVLS for the 30 consecutive business days prior to the date of the Notice. The Notice has no immediate effect on the listing of the Company’s securities on Nasdaq and in accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been provided a period o”

Mountain Crest Acquisition Corp. V incurred loan of $300,000 with Mountain Crest Global Holdings LLC at non-interest bearing maturing upon SPAC’s consummation of an initial business combination.

“On February 15, 2023, SPAC issued a non-interest bearing, unsecured promissory note in the aggregate principal amount of $300,000 (the “Note”) to the Sponsor.”

Mountain Crest Acquisition Corp. V amended Amendment with AUM Biosciences Pte. Ltd., AUM Biosciences Limited, AUM Biosciences Subsidiary Pte. Ltd., AUM Biosciences Delaware Merger Sub, Inc. (effective 2023-02-10).

“On February 10, 2023, SPAC, the Company, Holdco, Amalgamation Sub, and Merger Sub entered into an amendment to Business Combination Agreement (the “Amendment”) to extend the Outside Date in the Business Combination Agreement from February 15, 2023 to May 15, 2023.”

Mountain Crest Acquisition Corp. V entered into joinder agreement with AUM Biosciences Limited, AUM Biosciences Subsidiary Pte. Ltd., AUM Biosciences Delaware Merger Sub, Inc. (effective 2023-01-27).

“On January 27, 2023, SPAC, the Company, AUM Biosciences Limited, a Cayman Islands exempted company (“Holdco”), AUM Biosciences Subsidiary Pte. Ltd., a private company limited by shares incorporated in Singapore, with company registration number 202238778Z and a direct wholly-owned subsidiary of Holdco (“Amalgamation Sub”), and AUM Biosciences Delaware Merger Sub, Inc., a Delaware corporation and a direct wholly-owned subsidiary of Holdco (“Merger Sub”) entered into a joinder agreement pursuant to which Holdco, Amalgamation Sub, and Merger Sub joined the Business Combination Agreement as parties.”

Mountain Crest Acquisition Corp. V entered into Business Combination Agreement with AUM Biosciences Pte. Ltd. (effective 2022-10-19).

“As previously announced, on October 19, 2022, Mountain Crest Acquisition Corp. V, a Delaware corporation (“SPAC”), entered into a Business Combination Agreement (as it may be amended, supplemented or otherwise modified from time to time) (the “Business Combination Agreement”) with AUM Biosciences Pte. Ltd., a private company limited by shares incorporated in Singapore, with company registration number 201810204D (the “Company”).”

Mountain Crest Acquisition Corp. V amended Business Combination Agreement with AUM Biosciences Pte. Ltd., AUM Biosciences Limited, AUM Biosciences Subsidiary Pte. Ltd., AUM Biosciences Delaware Merger Sub, Inc. (effective 2023-01-27).

“On January 27, 2023, SPAC, the Company, AUM Biosciences Limited, AUM Biosciences Subsidiary Pte. Ltd. and AUM Biosciences Delaware Merger Sub, Inc. entered into a joinder agreement to the Business Combination Agreement (the “Joinder Agreement”), that expressly amended and modified the Business Combination Agreement”

Mountain Crest Acquisition Corp. V: Amended certificate of incorporation to extend business combination period from February 16, 2023 to May 16, 2023 (effective 2022-12-20).

“As approved by its stockholders at the Special Meeting, SPAC filed an amendment to its Amended and Restated Certificate of Incorporation with the Delaware Secretary of State on December 20, 2022 (the “Extension Amendment”), giving SPAC the right to extend the Business Combination Period from February 16, 2023 to May 16, 2023.”

Mountain Crest Acquisition Corp. V shareholders approved Trust Amendment Stockholders approved the proposal to amend SPAC's Investment Management Trust Agreement, dated as of November 12, 2021, by and between the Company and Continental Stock Transfer & Trust Company, giving SPAC the right to extend the Business Combination Period from February 16, 2023 t at the 2022-12-20 meeting.

“2. Trust Amendment Stockholders approved the proposal to amend SPAC’s Investment Management Trust Agreement, dated as of November 12, 2021, by and between the Company and Continental Stock Transfer & Trust Company, giving SPAC the right to extend the Business Combination Period from February 16, 2023 to May 16, 2023 and to the extent SPAC’s Amended and Restated Certificate of Incorporation is amended to extend the Business Combination Period by depositing into the Trust Account $300,000. Adoption of the Trust Amendment required approval by the affirmative vote of at least a majority of SPAC’s outstanding shares of common stock sold in the IPO. The voting results were as follows: FOR AGAINST ABSTAIN 5,815,271 10,031 61,486”

Mountain Crest Acquisition Corp. V shareholders approved Extension Amendment Stockholders approved the proposal to amend SPAC's Amended and Restated Certificate of Incorporation, giving SPAC the right to extend the Business Combination Period from February 16, 2023 to May 16, 2023. at the 2022-12-20 meeting.

“1. Extension Amendment Stockholders approved the proposal to amend SPAC’s Amended and Restated Certificate of Incorporation, giving SPAC the right to extend the Business Combination Period from February 16, 2023 to May 16, 2023. Adoption of the Extension Amendment required approval by the affirmative vote of at least a majority of SPAC’s outstanding shares of common stock. The voting results were as follows: FOR AGAINST ABSTAIN 7,941,171 10,031 61,486”

Mountain Crest Acquisition Corp. V amended Investment Management Trust Agreement Amendment with Continental Stock Transfer & Trust Company valued at deposit of $300,000 into trust account to extend business combination period from February 16, 2023 (effective 2022-12-20).

“As approved by its stockholders at the special meeting of Stockholders held on December 20, 2022 (the “Special Meeting”), Mountain Crest Acquisition Corp V (“SPAC”) entered into an amendment to the Investment Management Trust Agreement, dated as of November 12, 2021, with Continental Stock Transfer & Trust Company, on December 20, 2022 (the “Trust Amendment”). Pursuant to the Trust Amendment, SPAC has the right to extend the time for SPAC to complete its business combination (the “Business Combination Period”) under the Trust Agreement for a period of 3 months from February 16, 2023 to May 16, 2023 and to the extent SPAC’s Amended and Restated Certificate of Incorporation is amended to extend the Business Combination Period, by depositing $300,000 into SPAC’s trust account (“Trust Account”).”