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Centurion Acquisition Corp.

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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.

Centurion Acquisition Corp.

CIK 0002010930ALFALFUUALFUW· quarter ending 2026-06-30
Shares outstanding
12,134,657
as of 2026-08-14 · 10-Q cover page, filed 2026-08-14
Held by 13F filers
6,161,699
50.8% of shares outstanding
Holders
15
-34 vs 2026-03-31 · 4 new, 38 exited
Value
$66.6M
shares -78.3% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-14, as of 2026-08-14)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common stockALF · NASDAQ12,134,6576,161,69950.8%15G20315100

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
G20315100SHS CL A156,161,69912,134,65750.8%$66.6M—13DGholders →
G20315118*W EXP 05/31/203not common3110,981,311
$800K principal
——$2.8M—NPORTholders →
G20315126TRUSnot common219,377——$211K—prefixholders →

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 (15 of 15 · G20315100)

change vs 2026-03-31
#FilerShares% of classValueChange
1MIZUHO SECURITIES USA LLC1,613,88613.30%$17.3M+250,775 (+18.4%)
2Linden Advisors LP1,000,0008.24%$10.8M—
3AQR Arbitrage LLC999,9998.24%$10.8M-751,903 (-42.9%)
4Polar Asset Management Partners Inc.925,0007.62%$10.1M—
5Context Capital Management, LLC500,0004.12%$5.4MNEW
6HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND500,0004.12%$5.4MNEW
7LMR Partners LLP500,0004.12%$5.4M-875,000 (-63.6%)
8Kepos Capital LP42,5000.35%$461K—
9ABC ARBITRAGE SA30,0000.25%$326K—
10SUSQUEHANNA INTERNATIONAL GROUP, LLP21,7300.18%$235K+6,069 (+38.8%)
11Clear Street Group Inc.12,3260.10%$134K-4,800 (-28.0%)
12CITADEL ADVISORS LLC12,0680.10%$130KNEW
13LONGFELLOW INVESTMENT MANAGEMENT CO LLC4,1500.03%$45K—
14MORGAN STANLEY380.00%$411-26 (-40.6%)
15Caitong International Asset Management Co., Ltd20.00%$22NEW
Exited since 2026-03-31 (38 filers; largest 25 shown)
First Trust Capital Management L.P.−2,745,000
PICTON MAHONEY ASSET MANAGEMENT−1,875,000
Magnetar Financial LLC−1,856,250
Wealthspring Capital LLC−1,440,601
D. E. Shaw & Co., Inc.−1,309,906
TORONTO DOMINION BANK−1,200,000
MMCAP International Inc. SPC−1,175,000
BERKLEY W R CORP−1,157,544
WOLVERINE ASSET MANAGEMENT LLC−946,776
GOLDMAN SACHS GROUP INC−843,623
TENOR CAPITAL MANAGEMENT Co., L.P.−750,000
Westchester Capital Management, LLC−688,240
TWO SIGMA INVESTMENTS, LP−625,000
GLAZER CAPITAL, LLC−622,630
L1 Global Manager Pty Ltd−575,000
METEORA CAPITAL, LLC−553,887
Radcliffe Capital Management, L.P.−501,086
RIVERNORTH CAPITAL MANAGEMENT, LLC−399,035
GRITSTONE ASSET MANAGEMENT LLC−290,988
Periscope Capital Inc.−275,000
HIGHBRIDGE CAPITAL MANAGEMENT LLC−264,997
Hudson Bay Capital Management LP−259,610
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS−250,000
Shaolin Capital Management LLC−207,045
CSS LLC/IL−150,681

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
SUPERNOVA MANAGEMENT LLCSCHEDULE 13G/A2026-09-042026-06-3000%
MAGNETAR CAPITAL PARTNERS LPSCHEDULE 13G/A2026-09-042026-06-3000%
DAVID J. SNYDERMANSCHEDULE 13G/A2026-09-042026-06-3000%
MAGNETAR FINANCIAL LLCSCHEDULE 13G/A2026-09-042026-06-3000%
AQR Arbitrage, LLCSCHEDULE 13G/A2026-08-142026-06-30999,9998.24%
First Trust Capital Management L.P.SCHEDULE 13G/A2026-08-142026-06-3000%
Siu Min WongSCHEDULE 13G/A2026-08-142026-06-301,000,0003.5%
Linden Capital L.P.SCHEDULE 13G/A2026-08-142026-06-30952,4773.3%
Linden Advisors LPSCHEDULE 13G/A2026-08-142026-06-301,000,0003.5%
AQR Capital Management, LLCSCHEDULE 13G/A2026-08-142026-06-30999,9998.24%
AQR Capital Management Holdings, LLCSCHEDULE 13G/A2026-08-142026-06-30999,9998.24%
AQR Global Alternative Investment Offshore Fund, L.P.SCHEDULE 13G/A2026-08-142026-06-30649,0505.35%
First Trust Capital Solutions L.P.SCHEDULE 13G/A2026-08-142026-06-3000%
First Trust Merger Arbitrage FundSCHEDULE 13G/A2026-08-142026-06-3000%
AQR Capital Management GP Ltd.SCHEDULE 13G/A2026-08-142026-06-30649,0505.35%
FTCS Sub GP LLCSCHEDULE 13G/A2026-08-142026-06-3000%
Linden GP LLCSCHEDULE 13G/A2026-08-142026-06-30952,4773.3%
Picton Mahoney Asset ManagementSCHEDULE 13G/A2026-08-112026-06-3000%
Matthew SimpsonSCHEDULE 13G/A2026-07-092026-06-3000%
Wealthspring Capital LLCSCHEDULE 13G/A2026-07-092026-06-3000%
Ben LevineSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
Barclays PLCSCHEDULE 13G2026-05-152026-03-312,012,5007%
Stefan RenoldSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR Partners LLPSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR PARTNERS LtdSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR Partners AGSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR PARTNERS (DIFC) LtdSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR Partners (Ireland) LimitedSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
LMR Partners LLCSCHEDULE 13G/A2026-05-152026-03-311,375,0004.8%
THE GOLDMAN SACHS GROUP, INC.SCHEDULE 13G/A2026-05-112026-03-311,036,2383.6%
GOLDMAN SACHS & CO. LLCSCHEDULE 13G/A2026-05-112026-03-311,036,2383.6%
HGC Investment Management IncSCHEDULE 13G2026-02-172025-12-311,450,0005.04%
Harraden Circle Investments, LLCSCHEDULE 13G/A2025-08-142025-06-3000%
Frederick V. Fortmiller, Jr.SCHEDULE 13G/A2025-08-142025-06-3000%
Harraden Circle Investors, LPSCHEDULE 13G/A2025-08-142025-06-3000%
Harraden Circle Investors GP, LPSCHEDULE 13G/A2025-08-142025-06-3000%
Meteora Capital, LLCSCHEDULE 13G2025-08-142025-06-301,731,5076.02%
Harraden Circle Special Opportunities, LPSCHEDULE 13G/A2025-08-142025-06-3000%
Polar Asset Management Partners Inc.SCHEDULE 13G/A2025-08-142025-06-30925,0003.2%
Harraden Circle Strategic Investments, LPSCHEDULE 13G/A2025-08-142025-06-3000%
Harraden Circle Investors GP, LLCSCHEDULE 13G/A2025-08-142025-06-3000%
MM Asset Management Inc.SCHEDULE 13G/A2025-08-122025-06-301,175,0003.27%
MMCAP International Inc. SPCSCHEDULE 13G/A2025-08-122025-06-301,175,0003.27%
KARPUS MANAGEMENT, INC.SCHEDULE 13G/A2025-04-072025-03-311,607,0394.47%
Centurion Sponsor LPSCHEDULE 13G2025-02-122024-09-307,097,50019.7%
Centurion Sponsor GP LLCSCHEDULE 13G2025-02-122024-09-307,097,50019.7%
David GombergSCHEDULE 13G2025-02-122024-09-307,097,50019.7%
Ramya RaoSCHEDULE 13G2025-02-072024-12-311,835,4506.38%

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.