TOP TIERMARKET NEWSWIRE
SEC Form 4 history

ATARA BIOTHERAPEUTIC (ATRA) insider trades

ATARA BIOTHERAPEUTIC (ATRA) insider trading activity (SEC Form 4). Over the trailing 90 days, ATRA insiders filed 1 purchases totalling $1000K and 1 sales totalling $41K — net BUYING of $959K. Most recent filing: Sep 4, 2026. Insider transactions are a Pro-tier alertable signal in the live Top Tier Newswire terminal — Form 4 filings reach the wire within minutes of acceptance by the SEC. Data shown publicly here is delayed 4 hours.

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Buys (90d)
1
$1000K
Sells (90d)
1
$41K
Net (90d)
+$959K
net buying
Most recent
Sep 4, 2026

Recent transactions

FiledInsiderRoleTypeSharesPriceValue
Sep 4, 2026Cherry Brian NDirP Purchase—$9.60$1000Kfiling
Aug 26, 2026Nguyen AnhcoPres, CEOS Sale—$8.08$41Kfiling
May 11, 2026Ecor1 Capital, LLC10%P Purchase—$9.35$4.7Mfiling
May 11, 2026Panacea Innovation Ltd10%S Sale—$10.10$3.2Mfiling