aTYR PHARMA INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| SCHIMMEL PAUL | — | Purchase | 317,999 | $0.94 | $298,919 | 1,413,023 | Oct 8, 2025 |
| Gross Jane A | — | Purchase | 3,750 | $4.00 | $15,000 | 9,750 | Mar 17, 2025 |
| Shukla Sanjay | President and CEO | Option Exercise | 10,375 | — | — | 146,923 | Feb 3, 2025 |
| Broadfoot Jill Marie | Chief Financial Officer | Sale | 1,254 | $3.78 | $4,740 | 31,763 | Feb 3, 2025 |
| DENYES NANCY | General Counsel | Sale | 899 | $3.78 | $3,398 | 26,555 | Feb 3, 2025 |
| SCHIMMEL PAUL | — | Purchase | 52,300 | $1.93 | $100,939 | 413,023 | Jul 22, 2024 |
| DENYES NANCY | General Counsel | Purchase | 5,000 | $1.86 | $9,300 | 22,267 | Jun 5, 2024 |
| Broadfoot Jill Marie | Chief Financial Officer | Purchase | 5,000 | $1.79 | $8,950 | 27,960 | May 31, 2024 |
| Shukla Sanjay | President and CEO | Purchase | 20,000 | $1.81 | $36,200 | 136,548 | May 31, 2024 |
| COUGHLIN TIMOTHY | — | Purchase | 50,000 | $1.75 | $87,500 | 56,000 | May 30, 2024 |
| Shukla Sanjay | President and CEO | Option Exercise | 10,375 | — | — | 116,548 | Feb 5, 2024 |
| Broadfoot Jill Marie | Chief Financial Officer | Sale | 1,590 | $1.69 | $2,687 | 20,821 | Feb 5, 2024 |
| DENYES NANCY | General Counsel | Option Exercise | 2,688 | — | — | 14,767 | Feb 5, 2024 |
| Shukla Sanjay | President and CEO | Purchase | 3,000 | $1.17 | $3,510 | 94,173 | Dec 12, 2023 |
| Shukla Sanjay | President and CEO | Purchase | 13,578 | $1.11 | $15,072 | 91,173 | Nov 10, 2023 |
| Shukla Sanjay | President and CEO | Purchase | 15,000 | $2.01 | $30,150 | 76,173 | Jul 28, 2023 |
| COUGHLIN TIMOTHY | — | Gift | 6,000 | — | — | — | May 17, 2023 |
| SCHIMMEL PAUL | — | Purchase | 200,000 | $2.25 | $450,000 | 313,023 | May 10, 2023 |
| Zaknoen Sara | — | Option Exercise | 6,000 | — | — | 6,000 | Apr 26, 2023 |
| CLARKE JOHN K | — | Option Exercise | 6,000 | — | — | 19,797 | Apr 26, 2023 |
| SCHIMMEL PAUL | — | Option Exercise | 6,000 | — | — | 8,890 | Apr 26, 2023 |
| Lucas Svetlana | — | Option Exercise | 6,000 | — | — | 6,000 | Apr 26, 2023 |
| Gross Jane A | — | Option Exercise | 6,000 | — | — | 6,000 | Apr 26, 2023 |
| COUGHLIN TIMOTHY | — | Option Exercise | 6,000 | — | — | 6,000 | Apr 26, 2023 |
| DENYES NANCY | General Counsel | Option Exercise | 2,688 | — | — | 7,079 | Feb 3, 2023 |
| Broadfoot Jill Marie | Chief Financial Officer | Sale | 1,566 | $2.36 | $3,696 | 15,460 | Feb 3, 2023 |
| Shukla Sanjay | President and CEO | Option Exercise | 10,375 | — | — | 61,173 | Feb 3, 2023 |
| Shukla Sanjay | President and CEO | Purchase | 10,000 | $2.14 | $21,400 | 50,798 | Nov 21, 2022 |
| Shukla Sanjay | President and CEO | Purchase | 15,000 | $2.88 | $43,200 | 40,798 | Jul 1, 2022 |
| Broadfoot Jill Marie | Chief Financial Officer | Purchase | 1,923 | $6.75 | $12,980 | 12,112 | Jan 13, 2022 |
| Shukla Sanjay | President and CEO | Purchase | 5,000 | $6.76 | $33,800 | 25,798 | Jan 7, 2022 |
| Shukla Sanjay | President and CEO | Purchase | 2,500 | $8.58 | $21,450 | 20,798 | Nov 15, 2021 |
| SCHIMMEL PAUL | — | Gift | 250,000 | — | — | 679,143 | Sep 20, 2021 |
| CLARKE JOHN K | — | Sale | 2,500 | $4.34 | $10,850 | 108,083 | May 21, 2021 |
| SCHIMMEL PAUL | — | Purchase | 50,000 | $3.98 | $199,000 | 113,023 | May 18, 2021 |
| Shukla Sanjay | President and CEO | Purchase | 10,000 | $4.01 | $40,100 | 18,298 | May 18, 2021 |
| Broadfoot Jill Marie | Chief Financial Officer | Sale | 390 | $7.66 | $2,987 | 9,833 | Feb 6, 2021 |
| Shukla Sanjay | President and CEO | Sale | 778 | $7.66 | $5,959 | 8,298 | Feb 6, 2021 |
| CLARKE JOHN K | — | Sale | 100 | $4.00 | $400 | 117,843 | Sep 2, 2020 |
| CLARKE JOHN K | — | Sale | 5,440 | $4.09 | $22,250 | 117,943 | Aug 26, 2020 |
| Broadfoot Jill Marie | Chief Financial Officer | Purchase | 1,850 | $4.22 | $7,807 | 9,153 | Jun 19, 2020 |
| Shukla Sanjay | President and CEO | Purchase | 6,000 | $4.27 | $25,620 | 7,291 | Jun 19, 2020 |
| SCHIMMEL PAUL | — | Sale | 8,447 | $3.64 | $30,747 | 429,143 | May 20, 2020 |
| DENYES NANCY | General Counsel | Option Exercise | 892 | — | — | 3,057 | May 20, 2020 |
| SCHIMMEL PAUL | — | Purchase | 254,000 | $4.25 | $1,079,500 | 437,590 | Feb 10, 2020 |
| Shukla Sanjay | President and CEO | Option Exercise | 1,786 | — | — | 2,036 | Feb 7, 2020 |
| Broadfoot Jill Marie | Chief Financial Officer | Option Exercise | 893 | — | — | 7,500 | Feb 7, 2020 |
| Krueger Nancy | General Counsel | Option Exercise | 12,500 | — | — | 29,999 | May 17, 2019 |
| SCHIMMEL PAUL | — | Award / Grant | 1,848,428 | $0.54 | $998,151 | 2,570,242 | Apr 12, 2019 |
| MENDLEIN JOHN | — | Purchase | 50,000 | $0.41 | $20,500 | 420,382 | Dec 21, 2018 |