aTYR PHARMA INC (ATYR) - Insider Holders & Insider Ownership

List of insiders holdings for aTYR PHARMA INC:

Shares directly owned by the insider.
Shares indirectly owned by the insider.
Total shares owned by the insider (sum of shares directly and indirectly owned).
Total market value if available.
Shares are not adjusted for stock split.

"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#	Insider Holder Name	Report Date Time	Shares Owned Directly Indirectly	Total Shares Owned	Filing
1	SCHIMMEL PAUL Director	2026-05-28 16:12:51	8,890 2,192,166	2,201,056	Form 4
2	CHP II LP CHP II Management LLC Hull Brandon H Park John Joseph 10% Owner	2016-02-04 14:54:00	1,863,036 0	1,863,036	Form 13G
3	Yaras Brandon Chief Financial Officer	2026-10-01 16:03:45	410,000 0	410,000	Form 4
4	Flynn James E Deerfield Mgmt L.P. DEERFIELD MANAGEMENT CO Deerfield Special Situations Fund L.P. Deerfield Mgmt III L.P. Deerfield Private Design Fund III L.P. Possible Member of 10% Group 10% Owner	2015-05-13 13:00:37	0 255,764	255,764	Form 4
5	Shukla Sanjay President and CEO	2026-02-04 19:17:28	153,553 0	153,553	Form 4
6	King David John Chief Scientific Officer	2018-02-08 20:47:51	150,000 0	150,000	Form 4
7	Polaris Venture Management Co. V L.L.C. Polaris Venture Partners V L.P. Polaris Venture Partners Entrepreneurs' Fund V L.P. Polaris Venture Partners Founders' Fund V L.P. Polaris Venture Partners Special Founders' Fund V L.P. 10% Owner	2019-07-17 16:44:03	130,571 0	130,571	Form 13D
8	Domain Partners VIII L.P. BLAIR JAMES C DOVEY BRIAN H TREU JESSE I SCHOEMAKER KATHLEEN K VITULLO NICOLE Halak Brian K 10% Owner	2021-01-21 17:48:36	89,425 0	89,425	Form 13G
9	Blake John T Senior Vice President, Finance	2018-02-08 20:43:18	83,598 0	83,598	Form 4
10	Coughlin Timothy Director	2026-05-13 16:17:25	50,000 0	50,000	Form 4
11	BENEVICH ERIC Director	2026-05-13 16:15:41	50,000 0	50,000	Form 4
12	Gross Jane A Director	2026-05-13 16:14:02	50,000 0	50,000	Form 4
13	Lucas Svetlana Director	2026-05-13 16:12:06	50,000 0	50,000	Form 4
14	Zaknoen Sara Director	2026-05-13 16:10:17	50,000 0	50,000	Form 4
15	Weiner David M. Chief Medical Officer	2015-05-08 15:07:48	44,002 0	44,002	Form 4
16	McKew John C. VP, Research	2016-01-29 18:04:54	40,000 0	40,000	Form 4
17	Ravindran Sanuj K. Chief Business Officer	2017-02-09 16:31:53	40,000 0	40,000	Form 4
18	Blackburn Stan See Remarks	2018-05-02 20:12:22	26,259 11,954	38,213	Form 3
19	Broadfoot Jill Marie Chief Financial Officer	2026-02-04 19:15:03	37,296 0	37,296	Form 4
20	DENYES NANCY General Counsel	2026-02-04 19:12:45	33,124 0	33,124	Form 4
21	Amanullah Ashraf See Remarks	2018-06-07 19:29:24	29,597 0	29,597	Form 4
22	Cubitt Andrew VP, Product Protection	2016-09-15 19:26:34	25,000 0	25,000	Form 4
23	CLARKE JOHN K Director	2024-05-23 19:30:40	24,000 0	24,000	Form 4
24	Chereau Frederic President & COO	2015-05-08 15:11:08	22,001 0	22,001	Form 4
25	Blackburn Kelly VP, Clinical Affairs	2016-03-30 21:00:48	21,600 0	21,600	Form 4
26	AKKARAJU SRINIVAS Director	2017-05-11 18:45:17	20,000 0	20,000	Form 4
27	Goldberg Mark Alan Director	2017-05-11 18:57:53	20,000 0	20,000	Form 4
28	Matsuoka Grove See Remarks	2017-02-09 16:24:25	20,000 0	20,000	Form 4
29	Nashat Amir Director	2018-05-17 16:36:00	20,000 0	20,000	Form 4
30	BLAIR JAMES C Director	2019-05-10 19:40:10	20,000 0	20,000	Form 4
31	MENDLEIN JOHN Director	2019-05-10 17:29:06	20,000 0	20,000	Form 4
32	Ashlock Melissa A. See Remarks	2016-01-29 18:07:01	18,250 0	18,250	Form 4
33	FALBERG KATHRYN E Director	2016-05-26 11:06:08	18,000 0	18,000	Form 4
34	Ramsdell Fred VP, Immunology	2015-10-05 18:56:57	17,393 0	17,393	Form 4
35	DP VIII Associates L.P. BLAIR JAMES C DOVEY BRIAN H TREU JESSE I SCHOEMAKER KATHLEEN K VITULLO NICOLE Halak Brian K 10% Owner	2015-05-12 21:46:56	13,414 0	13,414	Form 4
36	DOMAIN ASSOCIATES BLAIR JAMES C DOVEY BRIAN H TREU JESSE I SCHOEMAKER KATHLEEN K VITULLO NICOLE Halak Brian K Kamdar Kim P. 10% Owner	2015-05-06 20:32:06	12,572 0	12,572	Form 3
37	Graham Marcy See Remarks	2016-01-06 20:28:26	12,023 0	12,023	Form 4
38	Chrzanowski Holly D. See Remarks	2016-01-29 18:02:51	8,500 0	8,500	Form 4
39	Hatfield Jeffrey S. Director	2020-05-08 17:02:40	1,428 0	1,428	Form 4
40	Alta Partners VIII L.P. Alta Partners Management VIII LLC JANNEY DANIEL CHAMPSI FARAH NOHRA GUY P 10% Owner	2020-01-14 17:28:05	0 0	0	Form 13G
41	Sofinnova Venture Partners IX L.P. Sofinnova Management IX L.L.C. HEALY JAMES POWELL MICHAEL Mehra Anand 10% Owner	2019-02-11 19:43:47	0 0	0	Form 13D
42	EcoR1 Capital Fund Qualified L.P. 10% Owner	2018-05-16 17:15:14	0 0	0	Form 4