Paul Schimmel insider trades: aTYR PHARMA (ATYR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Paul reports to the SEC






and 2 more companies
Open-market buys and sales
43 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 27, 2026 | ATYR | ↑ Buy | 100,000 | $0.50 | $50K | Indirect | May 28, 2026 (1d) |
| Oct 9, 2025 | ATYR | ↑ Buy | 1,000,000 | $0.91 | $912K | Indirect | Oct 9, 2025 (0d) |
| Jul 24, 2024 | ATYR | ↑ Buy | 100,000 | $1.85 | $185K | Indirect | Jul 24, 2024 (0d) |
| May 10, 2023 | LIFE | ↑ Buy | 200,000 | $2.25 | $450K | Indirect | May 11, 2023 (1d) |
| Sep 20, 2021 | LIFE | ↑ Buy | 250,000 | $8.00 | $2.0M | Direct | Sep 22, 2021 (2d) |
| May 18, 2021 | LIFE | ↑ Buy | 50,000 | $3.98 | $199K | Indirect | May 20, 2021 (2d) |
| May 20, 2020 | LIFE | ↓ Sell | 8,447 | $3.64 | $31K | Indirect | May 22, 2020 (2d) |
| Feb 10, 2020 | LIFE | ↑ Buy | 254,000 | $4.25 | $1.1M | Indirect | Feb 11, 2020 (1d) |
| Nov 26, 2018 | LIFE | ↑ Buy | 147,225 | $0.54 | $80K | Indirect | Nov 28, 2018 (2d) |
| Sep 4, 2018 | LIFE | ↑ Buy | 42,749 | $0.74 | $31K | Indirect | Sep 5, 2018 (1d) |
| Aug 30, 2018 | LIFE | ↑ Buy | 164,411 | $0.74 | $122K | Indirect | Aug 31, 2018 (1d) |
| May 18, 2018 | LIFE | ↑ Buy | 150,000 | $1.00 | $149K | Indirect | May 21, 2018 (3d) |
| Mar 13, 2018 | ALNY | ↓ Sell | 27,823 | $150.00 | $4.2M | Direct | Mar 14, 2018 (1d) |
| Aug 31, 2017 | LIFE | ↑ Buy | 94,336 | $2.65 | $250K | Indirect | Sep 5, 2017 (5d) |
| Apr 19, 2017 | TOCA | ↑ Buy | 10,000 | $10.00 | $100K | By Schimmel Revocable Trust Paul R. Schi | Apr 21, 2017 (2d) |
| Dec 21, 2016 | LIFE | ↑ Buy | 25,000 | $2.28 | $57K | Indirect | Dec 22, 2016 (1d) |
| Dec 16, 2016 | LIFE | ↑ Buy | 50,000 | $2.48 | $124K | Indirect | Dec 19, 2016 (3d) |
| Apr 14, 2016 | LIFE | ↑ Buy | 33,619 | $4.22 | $142K | Indirect | Apr 15, 2016 (1d) |
| Apr 14, 2016 | LIFE | ↑ Buy | 32,600 | $4.14 | $135K | Direct | Apr 15, 2016 (1d) |
| Apr 13, 2016 | LIFE | ↑ Buy | 9,835 | $3.85 | $38K | Indirect | Apr 14, 2016 (1d) |
| Apr 12, 2016 | LIFE | ↑ Buy | 6,546 | $3.70 | $24K | Indirect | Apr 13, 2016 (1d) |
| Apr 12, 2016 | LIFE | ↑ Buy | 2,581 | $3.75 | $10K | Direct | Apr 13, 2016 (1d) |
| Apr 11, 2016 | LIFE | ↑ Buy | 32,659 | $3.57 | $117K | Direct | Apr 12, 2016 (1d) |
| Apr 8, 2016 | LIFE | ↑ Buy | 85,000 | $3.22 | $274K | Direct | Apr 11, 2016 (3d) |
| Apr 7, 2016 | LIFE | ↑ Buy | 40,000 | $3.19 | $128K | Direct | Apr 8, 2016 (1d) |
| Apr 6, 2016 | LIFE | ↑ Buy | 25,000 | $3.20 | $80K | Direct | Apr 7, 2016 (1d) |
| Apr 5, 2016 | LIFE | ↑ Buy | 25,000 | $3.52 | $88K | Direct | Apr 6, 2016 (1d) |
| Apr 21, 2015 | ALNY | ↓ Sell | 10,000 | $130.02 | $1.3M | Direct | Apr 23, 2015 (2d) |
| Mar 19, 2015 | ALNY | ↓ Sell | 10,000 | $120.00 | $1.2M | Direct | Mar 19, 2015 (0d) |
| Dec 8, 2014 | ALNY | ↓ Sell | 15,000 | $105.00 | $1.6M | Direct | Dec 10, 2014 (2d) |
| Oct 28, 2014 | ALNY | ↓ Sell | 15,000 | $95.00 | $1.4M | Direct | Oct 30, 2014 (2d) |
| Jan 13, 2014 | ALNY | ↓ Sell | 15,000 | $85.36 | $1.3M | Direct | Jan 14, 2014 (1d) |
| Dec 20, 2013 | ALNY | ↓ Sell | 15,000 | $65.00 | $975K | Direct | Dec 23, 2013 (3d) |
| Oct 22, 2013 | ALNY | ↓ Sell | 15,000 | $60.00 | $900K | Direct | Oct 24, 2013 (2d) |
| Feb 21, 2012 | ALNY | ↑ Buy | 93,023 | $10.75 | $1000K | Direct | Feb 23, 2012 (2d) |
| Sep 10, 2009 | ALNY | ↓ Sell | 45,600 | $22.15 | $1.0M | Direct | Sep 11, 2009 (1d) |
| Sep 4, 2009 | ALNY | ↓ Sell | 29,400 | $22.02 | $647K | Direct | Sep 9, 2009 (5d) |
| Dec 4, 2007 | ALNY | ↓ Sell | 7,192 | $31.89 | $229K | by Trust | Dec 4, 2007 (0d) |
| Dec 3, 2007 | ALNY | ↓ Sell | 28,808 | $32.87 | $947K | by Trust | Dec 4, 2007 (1d) |
| Nov 30, 2007 | ALNY | ↓ Sell | 20,000 | $33.70 | $674K | Direct | Dec 4, 2007 (4d) |
| Nov 30, 2007 | SIRT | ↓ Sell | 11,503 | $17.00 | $196K | Direct | Dec 4, 2007 (4d) |
| Mar 2, 2006 | ALKS | ↓ Sell | 5,000 | $26.00 | $130K | Direct | Mar 3, 2006 (1d) |
| Jan 31, 2006 | ALNY | ↑ Buy | 100,000 | $13.00 | $1.3M | By Paul Schimmel Prototype PSP | Feb 2, 2006 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ATYR insiders
Open-market trades in the last 12 months
About Paul Schimmel's insider trades
Paul Schimmel is an insider at aTYR PHARMA (ATYR). Since Jan 31, 2006, Paul has reported 27 open-market purchases worth $9.1M and 16 sales worth $16.7M on SEC Form 4. In the last 12 months: 1 buy ($50K).
Their filings also include grants and awards (38 filings), option exercises (15 filings), gifts (8 filings), conversions (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ATYR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.