CCAQ: Dune Acquisition Corp II insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-08-14Fell below 5%Tenor Capital Management Company, L.P.0.00%SEC

Institutional ownership (Q2 2026)

7 institutions reported holding $5.88M of Dune Acquisition Corp II on Form 13F (7 the quarter before). 1 opened a new position and 1 sold out. Shares held by institutions: -15%.

Largest holdersSharesValue
LMR Partners LLP400,000$4.28M
Yakira Capital Management, Inc.73,454$788K
Clear Street Group Inc.34,159$366K
OMERS ADMINISTRATION Corp25,200$270K
JPMORGAN CHASE & CO15,000$164K
UBS Group AG1,400$15K
GLAZER CAPITAL, LLC5-

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