EDIT: Editas Medicine, Inc. 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
2026-08-14New 13G stakeADAR1 Capital Management, LLC5.80%SEC
2026-07-29Fell below 5%BlackRock, Inc.4.97%SEC

Institutional ownership (Q2 2026)

216 institutions reported holding $383.39M of Editas Medicine, Inc. on Form 13F (208 the quarter before). 35 opened a new position and 25 sold out. Shares held by institutions: +132%.

Largest holdersSharesValue
TCG Crossover Management, LLC11,111,111$36.00M
BlackRock, Inc.10,589,990$34.31M
RA CAPITAL MANAGEMENT, L.P.8,889,000$28.80M
Commodore Capital LP8,889,000$28.80M
ADAR1 Capital Management, LLC8,889,000$28.80M
VANGUARD CAPITAL MANAGEMENT LLC6,141,336$19.90M
Paradigm Biocapital Advisors LP5,586,625$18.10M
Opaleye Management Inc.3,861,930$12.51M
VANGUARD PORTFOLIO MANAGEMENT LLC3,598,339$11.66M
Woodline Partners LP3,555,497$11.52M

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