424B7 1 ny20062625x2_424b7.htm 424B7

Filed Pursuant to Rule 424(b)(7)

Registration No. 333-292706

PROSPECTUS SUPPLEMENT

(To Prospectus dated January 13, 2026)

161,034,417 Shares of Class A Common Stock

This prospectus supplement relates to the resale by the selling stockholders identified in this prospectus supplement (the “selling stockholders”) of up to 161,034,417 shares of Class A common stock, par value $0.0001 per share (“Class A Common Stock”), of CompoSecure, Inc. (“CompoSecure” or the “Company”). We will not receive any proceeds from the sale of the shares offered by this prospectus supplement.

The selling stockholders may sell the shares on any national securities exchange or quotation service on which the shares may be listed or quoted at the time of sale, on the over-the-counter market, in one or more transactions otherwise than on these exchanges or systems, such as privately negotiated transactions, or using a combination of these methods, and at fixed prices, at prevailing market prices at the time of the sale, at varying prices determined at the time of sale, or at negotiated prices. See “Plan of Distribution” for more information about how the selling stockholders may sell or otherwise dispose of their shares hereunder.

The selling stockholders may sell any, all or none of the shares offered by this prospectus supplement and we do not know when or in what amounts the selling stockholders may sell their shares hereunder.

Our Class A Common Stock is listed on the New York Stock Exchange (the “NYSE”) under the symbol “CMPO.” On January 13, 2026, the last reported sale price of our Class A Common Stock on the NYSE was $21.43 per share.

See “Risk Factors” beginning on page S-3 of this prospectus supplement and in the documents incorporated by reference in this prospectus supplement to read about factors you should consider before buying our shares.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of these shares or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

Prospectus Supplement dated January 14, 2026.


			Page
About This Prospectus Supplement			S-ii
Market and Industry Information			S-iii
Basis of Presentation			S-iii
Where You Can Find More Information			S-iii
Incorporation by Reference			S-iv
Forward-Looking Statements			S-v
Summary			S-1
Risk Factors			S-3
Use of Proceeds			S-12
Selling Stockholders			S-13
Plan of Distribution			S-19
Legal Matters			S-21
Experts			S-21


About This Prospectus			1
Where You Can Find More Information			2
Basis of Presentation			2
Incorporation by Reference			3
Forward-Looking Statements			4
The Company			6
Risk Factors			7
Use of Proceeds			8
Description of Capital Stock			9
Description of Debt Securities			12
Description of Depositary Shares			21
Description of Warrants			24
Description of Rights			26
Description of Purchase Contracts			27
Description of Units			28
Selling Securityholders			29
Plan of Distribution			30
Legal Matters			33
Experts			33


	Class A Common Stock Owned Prior to the Offering⁽¹⁾		Number of Shares Offered	Class A Common Stock Owned After the Offering⁽²⁾
Name of Selling Stockholder	Shares	%	Number of Shares Offered	Shares	%
Investment vehicles affiliated with Platinum Equity, LLC³	52,829,757	18.3%	52,829,757	—	—
Fidelity Hastings Street Trust : Fidelity Mega Cap Stock Fund⁴	687,465	*	687,465	—	—
Variable Insurance Products Fund III : VIP Growth & Income Portfolio⁴	524,000	*	524,000	—	—
Fidelity Securities Fund: Fidelity Growth & Income Portfolio⁴	2,511,929	*	2,511,929	—	—
Fidelity Hastings Street Trust: Fidelity Series Large Cap Stock Fund⁴	6,442,058	2.2%	6,442,058	—	—
Fidelity Destiny Portfolios: Fidelity Advisor Capital Development Fund⁴	1,573,058	*	1,573,058	—	—
Fidelity Concord Street Trust: Fidelity Large Cap Stock K6 Fund⁴	30,058	*	30,058	—	—
Fidelity Large Cap Stock Institutional Trust⁴	60,588	*	60,588	—	—
FIAM Target Date Large Cap Stock Commingled Pool⁴	1,521,924	*	1,521,924	—	—
Fidelity Concord Street Trust: Fidelity Large Cap Stock Fund⁴	2,308,186	*	2,308,186	—	—
Variable Insurance Products Fund IV : Industrials Portfolio⁴	89,717	*	89,717	—	—
Fidelity Advisor Series VII : Fidelity Advisor Industrials Fund⁴	437,290	*	437,290	—	—