Quick Takeaways
- PLATINUM EQUITY, LLC filed SCHEDULE 13D for CompoSecure, Inc. Class A Common Stock, par value $0.0001 per share (CMPO).
- Disclosed ownership: 18%.
- Date of event: 12 Jan 2026.
PLATINUM EQUITY, LLC - 12 Jan 2026 SCHEDULE 13D Report for CompoSecure, Inc. Class A Common Stock, par value $0.0001 per share (CMPO)
- Filing Manager
- PLATINUM EQUITY, LLC
- Reporting Manager
- Platinum Equity, LLC
- Symbol
- CMPO
- Shares outstanding
- 288,687,197 shares
- Disclosed Ownership
- 52,829,757 shares
- Ownership
- 18%
- Form type
- SCHEDULE 13D
- Filing time
- 20 Jan 2026, 16:30:10 UTC
- Date of event
- 12 Jan 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"PLATINUM EQUITY, LLC disclosed 18% ownership in CompoSecure, Inc. Class A Common Stock, par value $0.0001 per share (CMPO) on 12 Jan 2026."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 20 Jan 2026, 16:30.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (9)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Platinum Equity, LLC | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Mary Ann Sigler | Mary Ann Sigler, Executive Vice President, Chief Financial Officer and Treasurer | 0001228754 |
| Platinum Equity Investment Holdings, LLC | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Mary Ann Sigler | Mary Ann Sigler, Vice President, Secretary and Treasurer | 0001634372 |
| Platinum Equity Investment Holdings IC (Cayman), LLC | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Mary Ann Sigler | Mary Ann Sigler, President | 0001756330 |
| Platinum Equity InvestCo, L.P. | 18% | 52,829,757 | 0 | 52,829,757 | By: Platinum Equity Investment Holdings IC (Cayman), LLC, its general partner, /s/ Mary Ann Sigler | Mary Ann Sigler, President | 0001756331 |
| Platinum Equity Investment Holdings IV, LLC | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Ty Renbarger | Ty Renbarger, Vice President | 0001756333 |
| Platinum Equity Investment Holdings IV (Cayman), LLC | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Ty Renbarger | Ty Renbarger, Vice President | 0001785531 |
| Platinum Equity Partners International IV (Cayman), L.P. | 18% | 52,829,757 | 0 | 52,829,757 | By: Platinum Equity Investment Holdings IV (Cayman), LLC, its general partner, /s/ Ty Renbarger | Ty Renbarger, Vice President | 0001785528 |
| PE Titan CS Holdings, L.P. | 18% | 52,829,757 | 0 | 52,829,757 | By: Platinum Equity Partners International IV (Cayman), L.P., its GP, Platinum Equity Investment Holdings IV (Cayman), LLC, its GP, /s/ Ty Renbarger | Ty Renbarger, Vice President | 0002104295 |
| Tom Gores | 18% | 52,829,757 | 0 | 52,829,757 | /s/ Mary Ann Sigler | Mary Ann Sigler, Attorney-in-Fact | 0001471783 |