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CAPN CAYSON ACQUISITION CORP

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SHS (common), issuer CIK 2024203

30 managers (30 13F filers) reported a position in CAPN shares at 2025-09-30, 5,496,402 shares in all. 4 filers opened a position and 1 filer sold out during the quarter.

Managers
30
13F filers
30
New
4
Added
3
Reduced
4
Sold out
1
Shares held by filers
5,496,402

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BERKLEY W R CORP763,302$7.98M0.52%013F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC704,601$7.26M0.15%+10113F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC568,452$5.95M0.09%-2,82813F-HRTimelineGroup
RIVERNORTH CAPITAL MANAGEMENT, LLC450,000$4.71M0.27%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC349,901$3.66M0.09%-7,99013F-HRTimelineGroup
Westchester Capital Management, LLCin group Westchester Capital Managemen…325,000$3.4M0.18%013F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC306,703$3.22M0.08%013F-HRTimeline
ATW SPAC MANAGEMENT LLC306,703$3.21M4.05%013F-HRTimeline
Karpus Management, Inc.285,541$2.99M0.09%-6,96713F-HRTimeline
Polar Asset Management Partners Inc.275,000$2.88M0.06%013F-HR/ATimeline
HEIGHTS CAPITAL MANAGEMENT, INCin group HEIGHTS CAPITAL MANAGEMENT, I…150,000$1.57M0.5%013F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP150,000$1.57M<0.01%013F-HRTimelineGroup
WHITEBOX ADVISORS LLC125,000$1.31M0.02%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC114,486$1.2M<0.01%013F-HRTimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.100,192$1.05M0.01%13F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.100,000$1.05M<0.01%013F-HRTimelineGroup
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP75,000$785K0.05%013F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC75,000$784K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…60,281$631K<0.01%013F-HRTimelineGroup
Wealthspring Capital LLCin group Wealthspring Capital LLC59,550$623K0.15%-113,25013F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK50,346$527K<0.01%+6,54013F-HRTimelineGroup
Dakota Wealth Management28,500$298K0.01%013F-HR/ATimeline
Radcliffe Capital Management, L.P.26,904$282K0.02%013F-HRTimeline
Warberg Asset Management LLC17,226$180K0.05%new13F-HRTimeline
Quarry LP14,500$152K0.04%new13F-HRTimeline
ROBINSON CAPITAL MANAGEMENT, LLC12,250$128K0.09%013F-HRTimeline
UBS Group AGin group UBS Group AG1,204$12.6K<0.01%013F-HRTimelineGroup
LONGFELLOW INVESTMENT MANAGEMENT CO LLC470$4.92K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.250$2.59K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY40$418<0.01%+513F-HR/ATimelineGroup

Events

  • WOLVERINE ASSET MANAGEMENT LLC and 3 other reporting persons reported 119,188 CAPN shares, 3.09% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-06. 0001140361-26-038764

    Accepted , ingested