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Disclosery

SBXDF SILVERBOX CORP IV

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SHS CL A (common), issuer CIK 2015947

49 managers (49 13F filers) reported a position in SBXDF shares at 2026-06-30, 20,510,476 shares in all. 5 filers opened a position and 2 filers sold out during the quarter.

Managers
49
13F filers
49
New
5
Added
8
Reduced
11
Sold out
2
Shares held by filers
20,510,476

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Linden Advisors LPin group Linden Advisors LP2,000,000$21.6M0.11%013F-HRTimelineGroup
BERKLEY W R CORP1,930,127$20.9M1.02%+415,55413F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC1,840,442$19.8M0.32%+43,49513F-HR/ATimelineGroup
Polar Asset Management Partners Inc.1,508,005$16.3M0.3%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,012,401$10.9M0.16%-322,97513F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC993,816$10.7M0.14%-113F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.989,397$10.7M0.01%013F-HRTimelineGroup
MMCAP International Inc. SPCin group MMCAP980,000$10.6M0.9%013F-HRTimelineGroup
Crossingbridge Advisors, LLC928,613$10M1.77%-48,40013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT824,899$8.92M0.08%013F-HRTimeline
RiverPark Advisors, LLCin group RiverPark Advisors, LLC678,613$7.34M3.35%013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC606,074$6.55M<0.01%-9213F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC520,823$5.63M0.05%013F-HRTimelineGroup
Calamos Advisors LLCin group Calamos Advisors LLC500,000$5.41M0.02%013F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP500,000$5.41M0.04%013F-HRTimelineGroup
First Trust Capital Management L.P.445,168$4.81M0.28%013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.336,123$3.63M0.06%013F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…325,485$3.52M0.18%013F-HRTimelineGroup
RIVERNORTH CAPITAL MANAGEMENT, LLC299,997$3.25M0.15%013F-HRTimeline
Context Capital Management, LLC262,951$2.84M0.06%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP250,000$2.7M0.06%013F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK246,374$2.66M<0.01%+71,27413F-HRTimelineGroup
Shaolin Capital Management LLC241,138$2.61M0.15%-38,71113F-HRTimeline
Radcliffe Capital Management, L.P.227,454$2.46M0.19%013F-HRTimeline
RLH Capital LLC210,093$2.27M1.09%-94,22713F-HRTimeline
Wealthspring Capital LLCin group Wealthspring Capital LLC207,565$2.24M0.5%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC200,000$2.16M<0.01%013F-HRTimelineGroup
Quarry LP200,000$2.16M0.34%+58,40313F-HRTimeline
SkyView Investment Advisors, LLC179,449$1.94M1.52%new13F-HRTimeline
MANGROVE PARTNERS IM, LLC156,622$1.69M0.11%013F-HRTimeline
HIGHBRIDGE CAPITAL MANAGEMENT LLC154,587$1.67M0.06%+102,62313F-HRTimeline
Meteora Capital, LLC139,311$1.51M0.12%+86,09213F-HRTimeline
HRT FINANCIAL LP116,551$1.26M<0.01%013F-HRTimeline
Massar Capital Management, LP94,600$1.02M0.35%013F-HRTimeline
Periscope Capital Inc.75,000$811K0.13%-50,00013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO50,000$541K<0.01%013F-HRTimelineGroup
Lineage Point Capital LP50,042$541K0.11%013F-HRTimeline
DLD Asset Management, LP50,000$540K0.04%-71,07313F-HRTimeline
StoneX Group Inc.in group StoneX Group Inc.48,554$525K0.02%new13F-HRTimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.29,815$322K<0.01%-10013F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.24,500$267K<0.01%new13F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC21,369$231K0.01%013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC16,620$180K<0.01%+1,90813F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC11,719$127K<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC10,170$110K<0.01%-79413F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS9,314$101K<0.01%-813F-HRTimelineGroup
Arax Advisory Partners4,221$45.6K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG2,437$26.3K<0.01%+95513F-HRTimelineGroup
FNY Investment Advisers, LLC37$00%013F-HRTimelineValue filed as zero, left out of ratios.

Events

  • CALAMOS INVESTMENT TRUST/IL reported 500,000 SBXDF shares, 7.8% of the class, as of 2026-09-30, in a 13G filed 2026-10-09. 0001104659-26-114884

    Accepted , ingested