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Blue Acquisition Corp/Cayman

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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 Acquisition Corp/Cayman

CIK 0002059654BACCBACCRBACCU· quarter ending 2026-06-30
Shares outstanding
27,962,163
as of 2026-08-11 · 10-Q cover page, filed 2026-08-11
Held by 13F filers
487,066
selection includes debt or preferreds — no % of shares outstanding
Holders
7
-2 vs 2026-03-31 · 1 new, 3 exited
Value
$5.5M
shares -38.2% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-11, as of 2026-08-11)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common Class ABACC · NASDAQ20,892,25017,535,02483.9%42G1331A108
Common Class Bnot listed7,069,913——

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
G1331A108ORD SHS CL A4217,535,02420,892,25083.9%$185.9M—13DGholders →
G1331A116RIGHT 06/11/2030not common4716,221,257——$12.2M—prefixholders →
G1331A124UNIT 06/02/2030not common7487,066——$5.5M—13DGholders →

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 (7 of 7 · G1331A124)

change vs 2026-03-31
#FilerShares / principal% of classValueChange
1Clear Street Group Inc.224,463—$2.5M+74,237 (+49.4%)
2Calamos Advisors LLC123,189—$1.4M—
3JPMORGAN CHASE & CO50,000—$575K—
4Harraden Circle Investments, LLC50,000—$563KNEW
5OMERS ADMINISTRATION Corp39,092—$440K—
6UBS Group AG306—$3K—
7GLAZER CAPITAL, LLC16—$0—
Exited since 2026-03-31 (3 filers; largest 3 shown)
TORONTO DOMINION BANK−276,400
Westchester Capital Management, LLC−123,532
HRT FINANCIAL LP−25,650

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
MAGNETAR CAPITAL PARTNERS LPSCHEDULE 13G/A2026-09-042026-06-3000%
DAVID J. SNYDERMANSCHEDULE 13G/A2026-09-042026-06-3000%
SUPERNOVA MANAGEMENT LLCSCHEDULE 13G/A2026-09-042026-06-3000%
MAGNETAR FINANCIAL LLCSCHEDULE 13G/A2026-09-042026-06-3000%
Tenor Opportunity Master Fund, Ltd.SCHEDULE 13G/A2026-08-142026-06-301,747,3898.4%
Frederick V. Fortmiller, Jr.SCHEDULE 13G2026-08-142026-06-301,064,7235.1%
Harraden Circle Investments, LLCSCHEDULE 13G2026-08-142026-06-301,064,7235.1%
Tenor Capital Management Company, L.P.SCHEDULE 13G/A2026-08-142026-06-301,747,3898.4%
Robin ShahSCHEDULE 13G/A2026-08-142026-06-301,747,3898.4%
Blue Holdings Management LLCSCHEDULE 13D/A2026-06-182026-06-167,160,91325.61%
Blue Holdings Sponsor LLCSCHEDULE 13D/A2026-06-182026-06-167,160,91325.61%
David BauerSCHEDULE 13D/A2026-06-182026-06-167,160,91325.61%
LMR Partners LLPSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
LMR Partners LLCSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
Ben LevineSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
LMR PARTNERS LtdSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
LMR Partners (Ireland) LimitedSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
LMR PARTNERS (DIFC) LtdSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
LMR Partners AGSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
Stefan RenoldSCHEDULE 13G/A2026-05-152026-03-311,915,4559.2%
SONA ASSET MANAGEMENT (UK) LLPSCHEDULE 13G/A2026-03-062026-02-283,342,35916%
Sona Asset Management LimitedSCHEDULE 13G/A2026-03-062026-02-283,342,35916%
SONA ASSET MANAGEMENT (US) LLCSCHEDULE 13G/A2026-03-062026-02-283,342,35916%
Sona Asset Management Cayman LimitedSCHEDULE 13G/A2026-03-062026-02-283,342,35916%
John AylwardSCHEDULE 13G/A2026-03-062026-02-283,342,35916%
The Merger FundSCHEDULE 13G/A2026-02-132025-12-31333,4571.6%
Virtus Investment Advisers, LLCSCHEDULE 13G/A2026-02-132025-12-31346,4371.66%
Westchester Capital Management, LLCSCHEDULE 13G/A2026-02-132025-12-31369,5851.77%
Westchester Capital Partners, LLCSCHEDULE 13G/A2026-02-132025-12-311,1570.01%
Barclays PLCSCHEDULE 13G/A2026-02-112025-12-3195,3820.45%
Ketan SethSCHEDULE 13D2025-06-232025-06-167,160,91325.61%

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.