$ATRA SEC Filings

Filed On	Filing
04 Sep 2026	Form 4: Cherry Brian N, Director Bought 104,166 shares ($1M)
26 Aug 2026	144
26 Aug 2026	Form 4: Nguyen AnhCo, Director Sold 5,062 shares ($40.9K)
14 Aug 2026	SCHEDULE 13G/A
12 Aug 2026	10-Q
12 Aug 2026	8-K: Results of Operations and Financial Condition
24 Jul 2026	Form 4: Redmile Group, Llc, Director and 1 other Received 195,211 shares by exercise or conversion · Gave up 60 shares to cover exercise price or tax
24 Jul 2026	SCHEDULE 13D/A
06 Jul 2026	Form 3: Sarney Kevin G, Interim CFO No securities owned
26 Jun 2026	8-K: Departure/Election of Directors or Officers; Compensation
15 Jun 2026	Form 4: Cherry Brian N, Director Received 24,000 shares as a grant or award
15 Jun 2026	Form 3: Cherry Brian N, Director Holds 38,320 shares of Common Stock
12 Jun 2026	REGISTRATION STATEMENT
12 Jun 2026	8-K: Departure/Election of Directors or Officers; Compensation; Submission of Matters to a Vote of Security Holders
11 Jun 2026	Form 4: Heiden William K, Director Received 12,000 shares as a grant or award
11 Jun 2026	Form 4: Fust Matthew K, Director Received 12,000 shares as a grant or award
11 Jun 2026	Form 4: Ciongoli Gregory Austin, Director Received 12,000 shares as a grant or award
20 May 2026	Form 4: Nguyen AnhCo, Director Sold 5,241 shares ($47.8K)
20 May 2026	Form 4: Grant-Huerta Yanina, Chief Accounting Officer Sold 2,414 shares ($22K)
18 May 2026	144

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