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Blue Water Acquisition Corp. III

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Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Blue Water Acquisition Corp. III

CIK 0002050501BLUWBLUWUBLUWW· quarter ending 2026-06-30
Shares outstanding
32,308,000
as of 2026-08-12 · 10-Q cover page, filed 2026-08-12
Held by 13F filers
25,167,860
96.9% of Common Class A
Holders
60
+2 vs 2026-03-31 · 3 new, 1 exited
Value
$259.7M
shares -5.2% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-12, as of 2026-08-12)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common Class ABLUW · NASDAQ25,983,00025,167,86096.9%60G1368E106
Common Class Bnot listed6,325,000——

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine
CountCUSIPClass (as filers write it)HoldersShares heldClass shares% of classValueOptionsMapped via
G1368E106ORD SHS CL A6025,167,86025,983,00096.9%$259.7M—13DGholders →
G1368E114*W EXP 05/23/203not common4211,449,667——$17.4M1 call / 0 putNPORTholders →
G1368E122UNIT 05/23/2030not common6419,175——$4.4M—NPORTholders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (60 of 60 · G1368E106)

change vs 2026-03-31
#FilerShares% of classValueChange
1Anson Funds Management LP2,485,0009.56%$25.7M-2,485,000 (-50.0%)
2Magnetar Financial LLC1,500,0005.77%$15.5M—
3D. E. Shaw & Co., Inc.1,252,3504.82%$12.9M—
4AQR Arbitrage LLC1,122,4204.32%$11.6M+9,416 (+0.8%)
5Harraden Circle Investments, LLC1,050,6424.04%$10.9M-571,958 (-35.2%)
6GLAZER CAPITAL, LLC1,011,2963.89%$10.4M+271,296 (+36.7%)
7TENOR CAPITAL MANAGEMENT Co., L.P.1,000,0003.85%$10.3M—
8Linden Advisors LP900,0003.46%$9.3M—
9Verition Fund Management LLC832,7313.20%$8.6M+32,900 (+4.1%)
10LMR Partners LLP800,0003.08%$8.3M—
11TWO SIGMA INVESTMENTS, LP797,5003.07%$8.2M—
12BERKLEY W R CORP731,5062.82%$7.5M—
13Meteora Capital, LLC678,2112.61%$7.0M+261,180 (+62.6%)
14Alberta Investment Management Corp600,0002.31%$6.2MNEW
15MIZUHO SECURITIES USA LLC582,6382.24%$6.0M+278,030 (+91.3%)
16MILLENNIUM MANAGEMENT LLC570,3002.19%$5.9M—
17Westchester Capital Management, LLC565,5522.18%$5.8M—
18Radcliffe Capital Management, L.P.475,0001.83%$4.9M—
19RIVERNORTH CAPITAL MANAGEMENT, LLC451,2231.74%$4.7M—
20MOORE CAPITAL MANAGEMENT, LP450,0001.73%$4.6M—
21OMERS ADMINISTRATION Corp418,0561.61%$4.3M—
22PICTON MAHONEY ASSET MANAGEMENT400,0001.54%$4.1M—
23Hudson Bay Capital Management LP399,3241.54%$4.1M—
24BNP PARIBAS FINANCIAL MARKETS391,2541.51%$4.0M—
25J. Goldman & Co LP364,7531.40%$3.8M—
26Polar Asset Management Partners Inc.350,0001.35%$3.6M—
27ARISTEIA CAPITAL, L.L.C.350,0001.35%$3.6M—
28MYDA Advisors LLC300,0001.15%$3.1M—
29Periscope Capital Inc.267,6641.03%$2.8M—
30Karpus Management, Inc.256,9950.99%$2.6M-2,775 (-1.1%)
31WHITEBOX ADVISORS LLC250,0000.96%$2.6M—
32O'Connor Alternative Investments LLC250,0000.96%$2.6M—
33TORONTO DOMINION BANK250,0000.96%$2.6M-11,720 (-4.5%)
34First Trust Capital Management L.P.249,9980.96%$2.6M—
35DLD Asset Management, LP229,9770.89%$2.4M—
36WOLVERINE ASSET MANAGEMENT LLC213,0150.82%$2.2M-5,010 (-2.3%)
37Centiva Capital, LP205,0000.79%$2.1M—
38Mint Tower Capital Management B.V.200,0000.77%$2.1M—
39Ghisallo Capital Management LLC200,0000.77%$2.1M—
40MMCAP International Inc. SPC200,0000.77%$2.1M—
41Jain Global LLC162,9800.63%$1.7M—
42683 Capital Management, LLC150,0000.58%$1.5M—
43Shaolin Capital Management LLC143,5510.55%$1.5M-16,449 (-10.3%)
44Schonfeld Strategic Advisors LLC140,0000.54%$1.4M+85,000 (+154.5%)
45CANTOR FITZGERALD, L. P.129,8000.50%$1.3M+64,900 (+100.0%)
46Lineage Point Capital LP109,5310.42%$1.1M—
47L1 Global Manager Pty Ltd100,0000.38%$1.0M—
48K2 PRINCIPAL FUND, L.P.100,0000.38%$1.0M—
49BOOTHBAY FUND MANAGEMENT, LLC92,0000.35%$950K+70,225 (+322.5%)
50SONA ASSET MANAGEMENT (US) LLC78,2090.30%$808K—
51Kepos Capital LP75,0000.29%$774K—
52GEODE CAPITAL MANAGEMENT, LLC60,1800.23%$620K-1,247 (-2.0%)
53DELTEC ASSET MANAGEMENT LLC50,0000.19%$516K—
54RLH Capital LLC50,0000.19%$516KNEW
55Context Capital Management, LLC50,0000.19%$516K—
56StoneX Group Inc.42,2910.16%$434KNEW
57Virtu Financial LLC29,3330.11%$302K-9,564 (-24.6%)
58Clear Street Group Inc.2,4630.01%$25K-2,526 (-50.6%)
59UBS Group AG740.00%$763-6,376 (-98.9%)
60MORGAN STANLEY430.00%$443-24 (-35.8%)
Exited since 2026-03-31 (1 filers; largest 1 shown)
PenderFund Capital Management Ltd.−22,500

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting personFormFiledEventShares% of class
Frederick V. Fortmiller, Jr.SCHEDULE 13G/A2026-08-142026-06-301,050,6424.04%
Harraden Circle Investments, LLCSCHEDULE 13G/A2026-08-142026-06-301,050,6424.04%
Tony MooreSCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Anson Management GP LLCSCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Moez KassamSCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Amin NathooSCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Anson Funds Management LPSCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Anson Advisors Inc.SCHEDULE 13G2026-02-172025-12-312,585,0009.9%
Barclays PLCSCHEDULE 13G/A2026-02-132025-12-3100%
Harraden Circle Strategic Investments, LPSCHEDULE 13G2025-12-082025-12-01272,0241.05%
Harraden Circle Investors, LPSCHEDULE 13G2025-12-082025-12-01975,6973.76%
Harraden Circle Special Opportunities, LPSCHEDULE 13G2025-12-082025-12-01389,9941.5%
Harraden Circle Concentrated, LPSCHEDULE 13G2025-12-082025-12-0185,0850.33%
Harraden Circle Investors GP, LLCSCHEDULE 13G2025-12-082025-12-011,722,8006.63%
Harraden Circle Investors GP, LPSCHEDULE 13G2025-12-082025-12-011,722,8006.63%
Yorkville Advisors Global II, LLCSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
YA II PN, Ltd.SCHEDULE 13D2025-12-022025-11-256,755,00020.9%
Yorkville Advisors Global, LPSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
YAII GP, LPSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
YAII GP II, LLCSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
YA Global Investments II (U.S.), LPSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
Mark AngeloSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
Yorkville BW Acquisition Sponsor, LLCSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
SC-Sigma Global Partners, LPSCHEDULE 13D2025-12-022025-11-256,755,00020.9%
Blue Water Acquisition III LLCSCHEDULE 13G/A2025-11-282025-11-2500%
Joseph HernandezSCHEDULE 13G/A2025-11-282025-11-2500%
AQR Capital Management, LLCSCHEDULE 13G/A2025-11-122025-09-301,153,1044.44%
AQR Capital Management Holdings, LLCSCHEDULE 13G/A2025-11-122025-09-301,153,1044.44%
AQR Arbitrage, LLCSCHEDULE 13G/A2025-11-122025-09-301,153,1044.44%
SUPERNOVA MANAGEMENT LLCSCHEDULE 13G2025-08-082025-06-301,500,0005.77%
MAGNETAR FINANCIAL LLCSCHEDULE 13G2025-08-082025-06-301,500,0005.77%
MAGNETAR CAPITAL PARTNERS LPSCHEDULE 13G2025-08-082025-06-301,500,0005.77%
DAVID J. SNYDERMANSCHEDULE 13G2025-08-082025-06-301,500,0005.77%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.