Copley Acquisition Corp
COPL- Exchange
- NYSE
- Industry
- Blank Checks
- SEC CIK
- 0002045473
No open-market purchases or sales by Copley Acquisition Corp insiders were filed in the last 90 days; 37 institutions reported holding it in 13F filings for Q2 2026, worth $164.7M in total; no superinvestor holds it.
Holders of 5% or more of COPL
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Copley Acquisition Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Copley Acquisition Sponsors, LLC | 13G | 26.57%6.31M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Aristeia Capital LLC | 13G | 6.23%1.09M shares | New | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Karpus Management, Inc. | 13G | 5.73%1.36M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Berkley W R Corp | 13G/A | 5.70%1.03M shares | +0.50 ppfrom 5.20% | Aug 8, 20252 filings | May 7, 2026 | SEC |
| Highbridge Capital Management LLC | 13G | 5.70%1.02M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Mizuho Financial Group Inc | 13G | 5.70%1.02M shares | New | Aug 13, 20261 filing | Aug 13, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Copley Acquisition Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 202612:34 PM ET | Highbridge Capital Management LLC | 13G | 5.70%1.02M shares | New | Jun 30, 2026 | SEC |
| Aug 13, 20267:13 AM ET | Mizuho Financial Group Inc | 13G | 5.70%1.02M shares | New | Jun 30, 2026 | SEC |
| May 7, 20265:44 PM ET | Berkley W R Corpand 1 other | 13G/A | 5.70%1.03M shares | +0.50 ppfrom 5.20% | Mar 31, 2026 | SEC |
| Feb 17, 20264:05 PM ET | Copley Acquisition Sponsors, LLCand 1 other | 13G | 26.57%6.31M shares | New | Jun 30, 2025 | SEC |
| Feb 13, 20267:36 AM ET | Bank of Montrealand 2 others | 13G/A | 0.00%0 shares | −7.09 ppfrom 7.09%Below 5% | Dec 31, 2025 | SEC |
| Nov 14, 20254:05 PM ET | Karpus Management, Inc. | 13G | 5.73%1.36M shares | New | Sep 30, 2025 | SEC |
| Aug 14, 20259:39 AM ET | Aristeia Capital LLC | 13G | 6.23%1.09M shares | New | Jun 30, 2025 | SEC |
| Aug 8, 20254:59 PM ET | Berkley W R Corpand 1 other | 13G | 5.20%928.2K shares | New | Jun 30, 2025 | SEC |
| Jul 31, 20254:03 PM ET | Bank of Montrealand 2 others | 13G | 7.09%1.23M shares | New | Jul 1, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Copley Acquisition Corp shares.
No Form 144 notices for Copley Acquisition Corp are on file.