Vault-13

BLUE WTR ACQUISITION CORP. I BLUW

ORD SHS CL A · Common Stock · CUSIP G1368E106

60 institutional holders +2 vs Q1 2026
25,167,86025.2m shares reported held*
$259.7mreported value*
3 new 8 added 11 reduced 1 sold out net sold ≈ $14.1m (-1.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.32.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q3 25: 54Q4 25: 60Q1 26: 58Q2 26: 6060Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q3 202554
Q4 202560
Q1 202658
Q2 202660

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q4 25: 18 bought or addedQ4 25: 24 cut or sold outQ4 25Q1 26: 12 bought or addedQ1 26: 15 cut or sold outQ1 26Q2 26: 11 bought or addedQ2 26: 12 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q4 20251824
Q1 20261215
Q2 20261112

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$5k$10k$15kQ3 25 calls: $13.5kQ3 25 puts: $0Q3 25P/C 0.00Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —Q1 26 calls: $0Q1 26 puts: $0Q1 26P/C —Q2 26 calls: $0Q2 26 puts: $0Q2 26P/C —
Numbers
QuarterCallsPutsP/C
Q3 2025$13.5k$00.00
Q4 2025$0$0—
Q1 2026$0$0—
Q2 2026$0$0—

Biggest buyers

Alberta Investment Management Corp New +600,000+600.0k
MIZUHO SECURITIES USA LLC Added +278,030+278.0k
GLAZER CAPITAL, LLC Added +271,296+271.3k
Meteora Capital, LLC Added +261,180+261.2k
Schonfeld Strategic Advisors LLC Added +85,000+85.0k
BOOTHBAY FUND MANAGEMENT, LLC Added +70,225+70.2k
CANTOR FITZGERALD, L. P. Added +64,900+64.9k
RLH Capital LLC New +50,000+50.0k
StoneX Group Inc. New +42,291+42.3k
Verition Fund Management LLC Added +32,900+32.9k

Biggest sellers

Anson Funds Management LP Reduced -2,485,000-2.5m
Harraden Circle Investments, LLC Reduced -571,958-572.0k
PenderFund Capital Management Ltd. Sold out -22,500-22.5k
Shaolin Capital Management LLC Reduced -16,449-16.4k
TORONTO DOMINION BANK Reduced -11,720-11.7k
Virtu Financial LLC Reduced -9,564-9.6k
UBS Group AG Reduced -6,376-6.4k
WOLVERINE ASSET MANAGEMENT LLC Reduced -5,010-5.0k
Karpus Management, Inc. Reduced -2,775-2.8k
Clear Street Group Inc. Reduced -2,526-2.5k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Yorkville BW Acquisition Sponsor, LLC 13D · may seek influence new · filed 2025-12-02
Stated purposePurchase Agreement On November 25, 2025, the Issuer, the Prior Sponsor, and the New Sponsor entered into a Purchase Agreement (the "Purchase Agreement"). Pursuant to the Purchase Agreement, the New Sponsor (i) purchased from the Prior Sponsor (a) 6,325,000 Class B Ordinary Shares and (b) 430,000 Private Units for an aggregate purchase price of $7,200,000, and (ii) upon closing, became the sponsor of the Issuer (together, the "Purchase"). The transactions under the Purchase Agreement closed on November 25, 2025. As a condition to consummation of the Purchase, all of the then-existing members of the Board of Directors (the "Prior Board") and all then-existing officers of the Issuer resigned, and the New Sponsor designated (i) a new board of directors, which was elected immediately prior … Full filing
 20.9% new 6.8m≈ $69.7m 2025-12-02
Anson Funds Management LP 13G · institution new · filed 2026-02-17 9.9% new 2.6m≈ $26.7m 2026-02-17
PICTON MAHONEY ASSET MANAGEMENT 13G · institution new · filed 2026-10-20 5.4% new 1.4m≈ $14.4m 2026-10-20

Fell to 5% or below in the last year: Harraden Circle Investments, LLC (4.0%, 2026-08-14), BARCLAYS PLC (0.0%, 2026-02-13), Blue Water Acquisition III LLC (0.0%, 2025-11-28), AQR CAPITAL MANAGEMENT LLC (4.4%, 2025-11-12)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 1 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 1 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20251—0——
Q3 20250—0——
Q4 20250—1——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Anson Funds Management LP 2.34% of their portfolio DALLAS, TX 2,485,0002.5m $25.7m $25.7m 2.34% Reduced -2.5m -2,485,000
2 Magnetar Financial LLC 0.14% of their portfolio EVANSTON, IL 1,500,0001.5m $15.5m $15.5m 0.14% Unchanged
3 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 1,252,3501.3m $12.9m $12.9m 0.01% Unchanged
4 AQR Arbitrage LLC 0.16% of their portfolio Greenwich, CT 1,122,4201.1m $11.6m $11.6m 0.16% Added +9.4k +9,416
5 Harraden Circle Investments, LLC 1.38% of their portfolio NEW YORK, NY 1,050,6421.1m $10.9m $10.9m 1.38% Reduced -572.0k -571,958
6 GLAZER CAPITAL, LLC 0.26% of their portfolio New York, NY 1,011,2961.0m $10.4m $10.4m 0.26% Added +271.3k +271,296
7 TENOR CAPITAL MANAGEMENT Co., L.P. 0.15% of their portfolio NEW YORK, NY 1,000,0001.0m $10.3m $10.3m 0.15% Unchanged
8 Linden Advisors LP 0.05% of their portfolio New York, NY 900,000900.0k $9.3m $9.3m 0.05% Unchanged
9 Verition Fund Management LLC 0.06% of their portfolio GREENWICH, CT 832,731832.7k $8.6m $8.6m 0.06% Added +32.9k +32,900
10 LMR Partners LLP 0.06% of their portfolio LONDON, X0 800,000800.0k $8.3m $8.3m 0.06% Unchanged
11 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 797,500797.5k $8.2m $8.2m 0.01% Unchanged
12 BERKLEY W R CORP 0.37% of their portfolio Greenwich, CT 731,506731.5k $7.5m $7.5m 0.37% Unchanged
13 Meteora Capital, LLC 0.58% of their portfolio Boca Raton, FL 678,211678.2k $7.0m $7.0m 0.58% Added +261.2k +261,180
14 Alberta Investment Management Corp 0.04% of their portfolio EDMONTON, A0 600,000600.0k $6.2m $6.2m 0.04% New
15 MIZUHO SECURITIES USA LLC 0.06% of their portfolio NEW YORK, NY 582,638582.6k $6.0m $6.0m 0.06% Added +278.0k +278,030
16 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 570,300570.3k $5.9m $5.9m 0.00% Unchanged
17 Westchester Capital Management, LLC 0.29% of their portfolio VALHALLA, NY 565,552565.6k $5.8m $5.8m 0.29% Unchanged
18 Radcliffe Capital Management, L.P. 0.37% of their portfolio BALA CYNWYD, PA 475,000475.0k $4.9m $4.9m 0.37% Unchanged
19 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.22% of their portfolio WEST PALM BEACH, FL 451,223451.2k $4.7m $4.7m 0.22% Unchanged
20 MOORE CAPITAL MANAGEMENT, LP 0.11% of their portfolio NEW YORK, NY 450,000450.0k $4.6m $4.6m 0.11% Unchanged
21 OMERS ADMINISTRATION Corp 0.03% of their portfolio TORONTO, A6 418,056418.1k $4.3m $4.3m 0.03% Unchanged
22 PICTON MAHONEY ASSET MANAGEMENT 0.04% of their portfolio Toronto, A6 400,000400.0k $4.1m $4.1m 0.04% Unchanged
23 Hudson Bay Capital Management LP 0.02% of their portfolio STAMFORD, CT 399,324399.3k $4.1m $4.1m 0.02% Unchanged
24 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 391,254391.3k $4.0m $4.0m 0.00% Unchanged
25 J. Goldman & Co LP 0.13% of their portfolio NEW YORK, NY 364,753364.8k $3.8m $3.8m 0.13% Unchanged
26 ARISTEIA CAPITAL, L.L.C. 0.06% of their portfolio GREENWICH, CT 350,000350.0k $3.6m $3.6m 0.06% Unchanged
27 Polar Asset Management Partners Inc. 0.07% of their portfolio TORONTO, A6 350,000350.0k $3.6m $3.6m 0.07% Unchanged
28 MYDA Advisors LLC 0.75% of their portfolio WOODMERE, NY 300,000300.0k $3.1m $3.1m 0.75% Unchanged
29 Periscope Capital Inc. 0.44% of their portfolio Toronto, A6 267,664267.7k $2.8m $2.8m 0.44% Unchanged
30 Karpus Management, Inc. 0.08% of their portfolio Pittsford, NY 256,995257.0k $2.6m $2.6m 0.08% Reduced -2.8k -2,775
31 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 250,000250.0k $2.6m $2.6m 0.00% Reduced -11.7k -11,720
32 WHITEBOX ADVISORS LLC 0.04% of their portfolio MINNEAPOLIS, MN 250,000250.0k $2.6m $2.6m 0.04% Unchanged
33 O'Connor Alternative Investments LLC 0.19% of their portfolio NEW YORK, NY 250,000250.0k $2.6m $2.6m 0.19% Unchanged
34 First Trust Capital Management L.P. 0.15% of their portfolio CHICAGO, IL 249,998250.0k $2.6m $2.6m 0.15% Unchanged
35 DLD Asset Management, LP 0.19% of their portfolio NEW YORK, NY 229,977230.0k $2.4m $2.4m 0.19% Unchanged
36 WOLVERINE ASSET MANAGEMENT LLC 0.03% of their portfolio CHICAGO, IL 213,015213.0k $2.2m $2.2m 0.03% Reduced -5.0k -5,010
37 Centiva Capital, LP 0.07% of their portfolio New York, NY 205,000205.0k $2.1m $2.1m 0.07% Unchanged
38 MMCAP International Inc. SPC 0.18% of their portfolio GRAND CAYMAN, E9 200,000200.0k $2.1m $2.1m 0.18% Unchanged
39 Mint Tower Capital Management B.V. 0.24% of their portfolio AMSTERDAM, P7 200,000200.0k $2.1m $2.1m 0.24% Unchanged
40 Ghisallo Capital Management LLC 0.04% of their portfolio BOSTON, MA 200,000200.0k $2.1m $2.1m 0.04% Unchanged
41 Jain Global LLC 0.02% of their portfolio NEW YORK, NY 162,980163.0k $1.7m $1.7m 0.02% Unchanged
42 683 Capital Management, LLC 0.14% of their portfolio NEW YORK, NY 150,000150.0k $1.5m $1.5m 0.14% Unchanged
43 Shaolin Capital Management LLC 0.08% of their portfolio Miami, FL 143,551143.6k $1.5m $1.5m 0.08% Reduced -16.4k -16,449
44 Schonfeld Strategic Advisors LLC 0.01% of their portfolio NEW YORK, NY 140,000140.0k $1.4m $1.4m 0.01% Added +85.0k +85,000
45 CANTOR FITZGERALD, L. P. 0.01% of their portfolio NEW YORK, NY 129,800129.8k $1.3m $1.3m 0.01% Added +64.9k +64,900
46 Lineage Point Capital LP 0.23% of their portfolio PALM BEACH, FL 109,531109.5k $1.1m $1.1m 0.23% Unchanged
47 K2 PRINCIPAL FUND, L.P. 0.09% of their portfolio TORONTO, A6 100,000100.0k $1.0m $1.0m 0.09% Unchanged
48 L1 Global Manager Pty Ltd 0.84% of their portfolio Melbourne, C3 100,000100.0k $1.0m $1.0m 0.84% Unchanged
49 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 92,00092.0k $950.4k $950.4k 0.02% Added +70.2k +70,225
50 SONA ASSET MANAGEMENT (US) LLC 0.03% of their portfolio NEW YORK, NY 78,20978.2k $807.9k $807.9k 0.03% Unchanged
51 Kepos Capital LP 1.05% of their portfolio NEW YORK, NY 75,00075.0k $774.0k $774.0k 1.05% Unchanged
52 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 60,18060.2k $620.5k $620.5k 0.00% Reduced -1.2k -1,247
53 DELTEC ASSET MANAGEMENT LLC 0.08% of their portfolio New York, NY 50,00050.0k $515.5k $515.5k 0.08% Unchanged
54 Context Capital Management, LLC 0.01% of their portfolio LAJOLLA, CA 50,00050.0k $516.0k $516.0k 0.01% Unchanged
55 RLH Capital LLC 0.25% of their portfolio Great Neck, NY 50,00050.0k $516.0k $516.0k 0.25% New
56 StoneX Group Inc. 0.02% of their portfolio NEW YORK, NY 42,29142.3k $434.3k $434.3k 0.02% New
57 Virtu Financial LLC 0.01% of their portfolio New York, NY 29,33329.3k $302.0k $302.0k 0.01% Reduced -9.6k -9,564
58 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 2,4632.5k $25.4k $25.4k 0.00% Reduced -2.5k -2,526
59 UBS Group AG 0.00% of their portfolio ZURICH, V8 7474 $763 $763 0.00% Reduced -6.4k -6,376
60 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4343 $443 $443 0.00% Reduced -24 -24