$ATRA 4 SEC Filings

Filed On	Filing
04 Sep 2026	Form 4: Cherry Brian N, Director Bought 104,166 shares ($1M)
26 Aug 2026	Form 4: Nguyen AnhCo, Director Sold 5,062 shares ($40.9K)
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
15 Jun 2026	Form 4: Cherry Brian N, Director Received 24,000 shares as a grant or award
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)
11 May 2026	Form 4: Panacea Innovation Ltd, 10% owner and 1 other Sold 313,446 shares ($3.17M)
11 May 2026	Form 4: EcoR1 Capital, Llc, 10% owner Bought 507,407 shares ($4.74M)
19 Mar 2026	Form 4: Panacea Innovation Ltd, 10% owner and 1 other Received 259,163 shares by exercise or conversion ($25.9) · Gave up 5 shares to cover exercise price or tax ($26.2)
11 Mar 2026	Form 4: Nguyen AnhCo, Director Received 81,100 shares as a grant or award
11 Mar 2026	Form 4: Grant-Huerta Yanina, Chief Accounting Officer Received 20,300 shares as a grant or award
04 Mar 2026	Form 4: Grant-Huerta Yanina, Chief Accounting Officer Sold 2,104 shares ($10.7K)
04 Mar 2026	Form 4: Nguyen AnhCo, Director Sold 2,996 shares ($15.2K)
14 Jan 2026	Form 4: Panacea Innovation Ltd, 10% owner and 1 other Sold 80,554 shares ($489K)
01 Dec 2025	Form 4: Panacea Innovation Ltd, 10% owner and 1 other Received 48,737 shares by exercise or conversion ($4.87) · Gave up 1 shares to cover exercise price or tax ($14)
19 Nov 2025	Form 4: Nguyen AnhCo, Director Sold 2,915 shares ($38.4K)
19 Nov 2025	Form 4: Grant-Huerta Yanina, Chief Accounting Officer Sold 1,804 shares ($23.8K)

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