Proem Acquisition Corp. I
PAACU- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002087446
No open-market purchases or sales by Proem Acquisition Corp. I insiders were filed in the last 90 days; 14 institutions reported holding it in 13F filings for Q2 2026, worth $26.8M in total; no superinvestor holds it.
Holders of 5% or more of PAACU
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Proem Acquisition Corp. I, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Linden Capital L.P. | 13G | 7.50%1.00M shares | New | Feb 18, 20261 filing | Feb 18, 2026 | SEC |
| Polar Asset Management Partners Inc. | 13G | 6.50%1.20M shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
| Aristeia Capital LLC | 13G | 5.66%1.04M shares | New | May 14, 20261 filing | May 14, 2026 | SEC |
| Magnetar Financial LLC | 13G | 5.44%1.00M shares | New | May 13, 20261 filing | May 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
5 Schedule 13D and 13G filings on Proem Acquisition Corp. I, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20261:08 PM ET | Polar Asset Management Partners Inc. | 13G | 6.50%1.20M shares | New | Mar 31, 2026 | SEC |
| May 14, 20269:09 AM ET | Aristeia Capital LLC | 13G | 5.66%1.04M shares | New | Mar 31, 2026 | SEC |
| May 13, 20269:52 AM ET | Magnetar Financial LLCand 3 others | 13G | 5.44%1.00M shares | New | Mar 31, 2026 | SEC |
| Feb 20, 20265:24 PM ET | Millennium Management LLCand 2 others | 13G | 4.10%752.5K shares | NewBelow 5% | Feb 12, 2026 | SEC |
| Feb 18, 20264:17 PM ET | Linden Capital L.P.and 3 others | 13G | 7.50%1.00M shares | New | Feb 17, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Proem Acquisition Corp. I shares.
No Form 144 notices for Proem Acquisition Corp. I are on file.