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
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | 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 |
| 2 | 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 |
| 3 | Shukla Sanjay President and CEO | 2025-02-04 18:18:08 | 157,298 0 | 157,298 | Form 4 |
| 4 | King David John Chief Scientific Officer | 2018-02-08 20:47:51 | 150,000 0 | 150,000 | Form 4 |
| 5 | 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 |
| 6 | 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 |
| 7 | Blake John T Senior Vice President, Finance | 2018-02-08 20:43:18 | 83,598 0 | 83,598 | Form 4 |
| 8 | Zaknoen Sara Director | 2025-05-02 17:25:06 | 50,000 0 | 50,000 | Form 4 |
| 9 | SCHIMMEL PAUL Director | 2025-05-02 17:23:44 | 50,000 0 | 50,000 | Form 4 |
| 10 | Lucas Svetlana Director | 2025-05-02 17:22:24 | 50,000 0 | 50,000 | Form 4 |
| 11 | Gross Jane A Director | 2025-05-02 17:20:43 | 50,000 0 | 50,000 | Form 4 |
| 12 | BENEVICH ERIC Director | 2025-05-02 17:18:49 | 50,000 0 | 50,000 | Form 4 |
| 13 | COUGHLIN TIMOTHY Director | 2025-05-02 17:16:28 | 50,000 0 | 50,000 | Form 4 |
| 14 | Weiner David M. Chief Medical Officer | 2015-05-08 15:07:48 | 44,002 0 | 44,002 | Form 4 |
| 15 | Ravindran Sanuj K. Chief Business Officer | 2017-02-09 16:31:53 | 40,000 0 | 40,000 | Form 4 |
| 16 | McKew John C. VP, Research | 2016-01-29 18:04:54 | 40,000 0 | 40,000 | Form 4 |
| 17 | Blackburn Stan See Remarks | 2018-05-02 20:12:22 | 26,259 11,954 | 38,213 | Form 3 |
| 18 | Broadfoot Jill Marie Chief Financial Officer | 2025-02-04 18:14:28 | 35,513 0 | 35,513 | Form 4 |
| 19 | Amanullah Ashraf See Remarks | 2018-06-07 19:29:24 | 29,597 0 | 29,597 | Form 4 |
| 20 | DENYES NANCY General Counsel | 2025-02-04 18:11:20 | 29,242 0 | 29,242 | Form 4 |
| 21 | Cubitt Andrew VP, Product Protection | 2016-09-15 19:26:34 | 25,000 0 | 25,000 | Form 4 |
| 22 | CLARKE JOHN K Director | 2024-05-23 19:30:40 | 24,000 0 | 24,000 | Form 4 |
| 23 | Chereau Frederic President & COO | 2015-05-08 15:11:08 | 22,001 0 | 22,001 | Form 4 |
| 24 | Blackburn Kelly VP, Clinical Affairs | 2016-03-30 21:00:48 | 21,600 0 | 21,600 | Form 4 |
| 25 | Nashat Amir Director | 2018-05-17 16:36:00 | 20,000 0 | 20,000 | Form 4 |
| 26 | Goldberg Mark Alan Director | 2017-05-11 18:57:53 | 20,000 0 | 20,000 | Form 4 |
| 27 | BLAIR JAMES C Director | 2019-05-10 19:40:10 | 20,000 0 | 20,000 | Form 4 |
| 28 | MENDLEIN JOHN Director | 2019-05-10 17:29:06 | 20,000 0 | 20,000 | Form 4 |
| 29 | AKKARAJU SRINIVAS Director | 2017-05-11 18:45:17 | 20,000 0 | 20,000 | Form 4 |
| 30 | Matsuoka Grove See Remarks | 2017-02-09 16:24:25 | 20,000 0 | 20,000 | Form 4 |
| 31 | Ashlock Melissa A. See Remarks | 2016-01-29 18:07:01 | 18,250 0 | 18,250 | Form 4 |
| 32 | FALBERG KATHRYN E Director | 2016-05-26 11:06:08 | 18,000 0 | 18,000 | Form 4 |
| 33 | Ramsdell Fred VP, Immunology | 2015-10-05 18:56:57 | 17,393 0 | 17,393 | Form 4 |
| 34 | 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 |
| 35 | 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 |
| 36 | Graham Marcy See Remarks | 2016-01-06 20:28:26 | 12,023 0 | 12,023 | Form 4 |
| 37 | Chrzanowski Holly D. See Remarks | 2016-01-29 18:02:51 | 8,500 0 | 8,500 | Form 4 |
| 38 | Hatfield Jeffrey S. Director | 2020-05-08 17:02:40 | 1,428 0 | 1,428 | Form 4 |
| 39 | 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 |
| 40 | 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 |
| 41 | EcoR1 Capital Fund Qualified L.P. 10% Owner | 2018-05-16 17:15:14 | 0 0 | 0 | Form 4 |