Blue Water Acquisition Corp. III
BLUW- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002050501
No open-market purchases or sales by Blue Water Acquisition Corp. III insiders were filed in the last 90 days; 60 institutions reported holding it in 13F filings for Q2 2026, worth $255.9M in total; no superinvestor holds it.
Holders of 5% or more of BLUW
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Blue Water Acquisition Corp. III, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Yorkville BW Acquisition Sponsor, LLC | 13D | 20.90%6.75M shares | New | Dec 2, 20251 filing | Dec 2, 2025 | SEC |
| Anson Funds Management LP | 13G | 9.90%2.58M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Magnetar Financial LLC | 13G | 5.77%1.50M shares | New | Aug 8, 20251 filing | Aug 8, 2025 | 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
11 Schedule 13D and 13G filings on Blue Water Acquisition Corp. III, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 202611:00 AM ET | Harraden Circle Investments, LLCand 1 other | 13G/A | 4.04%1.05M shares | −2.59 ppfrom 6.63%Below 5% | Jun 30, 2026 | SEC |
| Feb 17, 202611:04 AM ET | Anson Funds Management LPand 5 others | 13G | 9.90%2.58M shares | New | Dec 31, 2025 | SEC |
| Feb 13, 20265:41 PM ET | Barclays PLC | 13G/A | 0.00%0 shares | −7.88 ppfrom 7.88%Below 5% | Dec 31, 2025 | SEC |
| Dec 8, 20255:40 PM ET | Harraden Circle Investments, LLCand 7 others | 13G | 6.63%1.72M shares | New | Dec 1, 2025 | SEC |
| Dec 2, 20255:19 PM ET | Yorkville BW Acquisition Sponsor, LLCand 8 others | 13D | 20.90%6.75M shares | New | Nov 25, 2025 | SEC |
| Nov 28, 20255:00 PM ET | Blue Water Acquisition III LLCand 1 other | 13G/A | 0.00%0 shares | −20.90 ppfrom 20.90%Below 5% | Nov 25, 2025 | SEC |
| Nov 12, 20254:29 PM ET | Barclays PLC | 13G | 7.88%2.05M shares | New | Sep 30, 2025 | SEC |
| Nov 12, 20251:46 PM ET | AQR Capital Management LLCand 2 others | 13G/A | 4.44%1.15M shares | −1.33 ppfrom 5.77%Below 5% | Sep 30, 2025 | SEC |
| Aug 12, 202511:14 AM ET | AQR Capital Management LLCand 2 others | 13G | 5.77%1.50M shares | New | Jun 30, 2025 | SEC |
| Aug 8, 20258:25 AM ET | Magnetar Financial LLCand 3 others | 13G | 5.77%1.50M shares | New | Jun 30, 2025 | SEC |
| Jun 17, 20254:30 PM ET | Blue Water Acquisition III LLCand 1 other | 13G | 20.90%6.75M shares | New | Jun 9, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Blue Water Acquisition Corp. III shares.
No Form 144 notices for Blue Water Acquisition Corp. III are on file.