13F Insight
DOSSIER · 13F Holders · Q2 2026

KEYSTONE ACQUISITION CORP

22 institutions still hold KEYSTONE ACQUISITION CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G52539106·22 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$115M
visible holders
Holders
22
filers reporting
Concentration
11.12%
LINDEN ADVISORS LP #1
top holder share
AI Holders Summary · Q2 2026

22 institutions reported KEYSTONE ACQUISITION CORP in Q2 2026. LINDEN ADVISORS LP leads at 11.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
LINDEN ADVISORS LP
CIK 0001279396
$13M1.3M0.07%Q2 202602
METEORA CAPITAL, LLC
CIK 0001905106
$11M1.1M0.91%Q2 202603
Polar Asset Management Partners Inc.
CIK 0001326389
$11M1.1M0.18%Q2 202604
TORONTO DOMINION BANK
CIK 0000947263
$11M1.1M0.01%Q2 202605
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$7M750K0.10%Q2 202606
First Trust Capital Management L.P.
CIK 0001604488
$7M750K0.43%Q2 202607
Verition Fund Management LLC
CIK 0001454027
$7M664K0.03%Q2 202608
Hudson Bay Capital Management LP
CIK 0001393825
$6M600K0.02%Q2 202609
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$5M514K0.07%Q2 202610
PERISCOPE CAPITAL INC.
CIK 0001695320
$5M500K0.43%Q2 202611
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$4M453K0.00%Q2 202612
CSS LLC/IL
CIK 0001103646
$4M452K0.17%Q2 202613
Shaolin Capital Management LLC
CIK 0001766806
$4M449K0.21%Q2 202614
Centiva Capital, LP
CIK 0001692507
$4M425K0.04%Q2 202615
Clear Street Group Inc.
CIK 0001881567
$3M303K0.01%Q2 202616
Saba Capital Management, L.P.
CIK 0001510281
$3M300K0.08%Q2 202617
K2 PRINCIPAL FUND, L.P.
CIK 0001461790
$3M293K0.21%Q2 202618
O'Connor Alternative Investments LLC
CIK 0002081629
$2M250K0.18%Q2 202619
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$2M201K0.02%Q2 202620
StoneX Group Inc.
CIK 0000913760
$2M193K0.08%Q2 2026
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