HCMA: HCM III Acquisition Corp 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
2026-08-1413G amendmentMeteora Capital, LLC6.62%SEC

Institutional ownership (Q2 2026)

55 institutions reported holding $219.65M of HCM III Acquisition Corp on Form 13F (54 the quarter before). 3 opened a new position and 2 sold out. Shares held by institutions: -1%.

Largest holdersSharesValue
Meteora Capital, LLC1,673,621$17.20M
Linden Advisors LP1,200,000$12.34M
LMR Partners LLP1,050,000$10.79M
Verition Fund Management LLC1,021,661$10.50M
Governors Lane LP1,009,055$10.37M
MMCAP International Inc. SPC1,000,000$10.28M
TENOR CAPITAL MANAGEMENT Co., L.P.1,000,000$10.28M
HIGHBRIDGE CAPITAL MANAGEMENT LLC1,000,000$10.28M
Magnetar Financial LLC999,990$10.28M
TWO SIGMA INVESTMENTS, LP797,500$8.20M

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