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Equity
 12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Equity

(7) Equity

The Company’s authorized capital stock consists of 155,000,000 shares, all with a par value of $0.00001 per share, of which:

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150,000,000 shares are designated as common stock; and
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5,000,000 shares are designated as preferred stock.

Stock Purchase Agreement

In May 2024, the Company entered into a Stock Purchase Agreement with an investor (the “Purchaser”), pursuant to which the Company issued and sold an aggregate of 464,000 shares of common stock, at a purchase price of $12.50 per share, a 25% premium to the 30-day volume-weighted average stock price, or an aggregate purchase price of approximately $5.8 million. The Purchaser agreed not sell of any of the common stock prior to November 9, 2024 and to vote all of the shares of common stock that it then owns in accordance with the recommendation of the Company’s board of directors on all matters presented to the Company’s stockholders through May 14, 2025.

Reverse Stock Split

On January 17, 2025, the Company's stockholders approved a proposal to amend its Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), to effect the Reverse Stock Split at a ratio of 1-for-10. On January 17, 2025, the Company filed a Certificate of Amendment (the “Certificate of Amendment”) to its Certificate of Incorporation with the Secretary of State of the State of Delaware to effect the Reverse Stock Split. Pursuant to the Certificate of Amendment, the Reverse Stock Split became effective at 12:01 a.m., Eastern Time, on January 28, 2025. As of the opening of trading on January 28, 2025, MiNK's common stock began trading on a post-split basis under CUSIP number 603693 201.

All common share, per share and related information included in the accompanying financial statements and footnote disclosures have been adjusted retroactively, where applicable, to reflect the Reverse Stock Split.

Nasdaq Compliance

On May 13, 2025, MiNK received a letter (the “MVLS Notice”) from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) notifying it that for the previous 30 consecutive trading days the Company’s Minimum Value of Listed Securities (“MVLS”) was less than $35.0 million, as required by Nasdaq Listing Rule 5550(b)(2) (the “MVLS Rule”). Nasdaq provided the Company with 180 calendar days, or until November 10, 2025, to regain compliance. To regain compliance, the Company’s MVLS had to have met or exceeded $35.0 million for a minimum of ten consecutive trading days.

On July 28, 2025, the Company was notified by the Nasdaq Listing Qualifications Department staff that the Company’s MVLS met or exceeded $35.0 million for at least ten consecutive business days. Accordingly, the Company regained compliance with the MVLS Rule and this matter is now closed.

At the Market Sales Agreement

On July 15, 2025, the Company entered into an At Market Issuance Sales Agreement (the “Sales Agreement”) with B. Riley Securities, Inc., as sales agent (the “Sales Agent”) to sell shares of the Company’s common stock, from time to time through the Sales Agent, at a maximum aggregate offering price of $50.0 million. The issuances and sales under the Sales Agreement were pursuant to the Company’s registration statement on Form S-3 (File No. 333-268143) (the “2022 Registration Statement”) filed with the Securities and Exchange Commission on November 3, 2022, the base prospectus included in the 2022 Registration Statement, dated November 8, 2022, and a prospectus supplement, dated July 15, 2025. On November 7, 2025, the Company filed a registration statement on Form S-3 (File No. 333-291388) (the “2025 Registration Statement”) with the Securities and Exchange Commission to replace the 2022 Registration Statement.

The Company sold approximately 584,000 shares of its common stock pursuant to the Sales Agreement during the year ended December 31, 2025, and received aggregate net proceeds totaling $14.5 million.

Controlled Company Status

As a result of the shares issued and sold under the Sales Agreement in July 2025, the Company's largest stockholder, Agenus, which previously owned more than 50% of the voting power of the Company’s common stock, owned less than 50% of the voting power of the Company’s common stock as of July 2025. As a result, the Company no longer qualifies as a “Controlled Company” as defined in Nasdaq Rule 5615(a)(7).