13F Insight
DOSSIER · 13F Holders · Q2 2026

DUNE ACQUISITION CORP II

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

CUSIP G2867S117·35 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$3M
visible holders
Holders
35
filers reporting
Concentration
13.65%
Harraden Circle Investments, LLC #1
top holder share
AI Holders Summary · Q2 2026

35 institutions reported DUNE ACQUISITION CORP II in Q2 2026. Harraden Circle Investments, LLC leads at 13.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Harraden Circle Investments, LLC
CIK 0001910592
$413K1.0M0.05%Q2 202602
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$334K825K0.00%Q2 202603
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$293K750K0.00%Q2 202604
Polar Asset Management Partners Inc.
CIK 0001326389
$239K613K0.00%Q2 202605
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$235K23K0.00%Q2 202606
Westchester Capital Management, LLC
CIK 0001512805
$175K450K0.01%Q2 202607
TORONTO DOMINION BANK
CIK 0000947263
$175K448K0.00%Q2 202608
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
CIK 0001083190
$118K292K0.00%Q2 202609
WHITEBOX ADVISORS LLC
CIK 0001257391
$117K300K0.00%Q2 202610
AQR Arbitrage LLC
CIK 0001167456
$114K445K0.00%Q4 202511
Clear Street Group Inc.
CIK 0001881567
$109K279K0.00%Q2 202612
Radcliffe Capital Management, L.P.
CIK 0001218275
$106K263K0.01%Q2 202613
Shaolin Capital Management LLC
CIK 0001766806
$105K270K0.01%Q2 202614
METEORA CAPITAL, LLC
CIK 0001905106
$90K231K0.01%Q2 202615
PICTON MAHONEY ASSET MANAGEMENT
CIK 0001539041
$89K213K0.00%Q2 202616
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$74K255K0.00%Q1 202617
Verition Fund Management LLC
CIK 0001454027
$63K150K0.00%Q2 202618
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$62K147K0.00%Q2 202619
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$60K155K0.00%Q2 202620
CITADEL ADVISORS LLC
CIK 0001423053
$56K217K0.00%Q4 2025
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