DOSSIER · 13F Holders · Q2 2026

DUNE ACQUISITION CORP II

8 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 G2867S125·8 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$7M
visible holders
Holders
8
filers reporting
Concentration
61.96%
LMR Partners LLP #1
top holder share
AI Holders Summary · Q2 2026

8 institutions reported DUNE ACQUISITION CORP II in Q2 2026. LMR Partners LLP leads at 62.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
LMR Partners LLP
CIK 0001578621
$4M400K0.02%Q2 2026
02
HRT FINANCIAL LP
CIK 0001475597
$1M100K0.00%Q4 2025
03
Yakira Capital Management, Inc.
CIK 0001584639
$788K73K0.22%Q2 2026
04
Clear Street Group Inc.
CIK 0001881567
$366K34K0.00%Q2 2026
05
OMERS ADMINISTRATION Corp
CIK 0001053321
$270K25K0.00%Q2 2026
06
JPMORGAN CHASE & CO
CIK 0000019617
$164K15K0.00%Q2 2026
07
UBS Group AG
CIK 0001610520
$15K1K0.00%Q2 2026
08
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025