aTYR PHARMA (ATYR) stock: insider trades, news & valuation
Net buyingShare price and insider trades
aTYR PHARMA insider trading at a glance (Oct 9, 2026): in the past 12 months, 1 insider bought $963K and 3 sold $6K of ATYR stock on the open market.
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ATYR insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $50K | 1 | — | 0 |
| Q1 2026 | — | 0 | $6K | 3 |
| Q4 2025 | $913K | 2 | — | 0 |
Valuation, profit and volume
Summary
Over the past 12 months, 1 aTYR PHARMA INC insider reported open-market purchases totaling $963K, while 3 insiders reported sales totaling $6K. Among insiders with enough purchase history to measure, Paul Schimmel (Director) has the highest Insider Score at 39. 0 of 3 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| May 28SEC | Paul SchimmelDirector | Buy | 100,000779,143 held (+15%) | $0.50 | $50K | -50.8% | 39 |
| Feb 4SEC | Sanjay ShuklaCEO, President | Sell | 3,745153,553 held (−2%) | $0.98 | $4K | -74.9% | — |
| Feb 4SEC | Jill Marie BroadfootCFO | Sell | 1,55837,296 held (−4%) | $0.98 | $2K | -74.9% | — |
| Feb 4SEC | Nancy DenyesGeneral Counsel | Sell | 1,11833,124 held (−3%) | $0.98 | $1K | -74.9% | — |
| Oct 9SEC | Paul SchimmelDirector | Buy | 682,0011,095,024 held (+165%) | $0.90 | $614K | -72.7% | 39 |
| Oct 9SEC | Paul SchimmelDirector | Buy | 317,9991,413,023 held (+29%) | $0.94 | $299K | -73.8% | 39 |
Insiders at aTYR PHARMA INC
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Paul SchimmelDirector | $963K | — | May 28, 2026 | 39 |
| Sanjay ShuklaCEO, President | — | $4K | Feb 4, 2026 | — |
| Jill Marie BroadfootCFO | — | $2K | Feb 4, 2026 | — |
| Nancy DenyesGeneral Counsel | — | $1K | Feb 4, 2026 | — |
ATYR stock: common questions
Are aTYR PHARMA INC insiders buying ATYR stock?
In the past 12 months, 1 insiders reported open-market purchases of ATYR worth $963K. The latest was Director Paul Schimmel bought $50K of ATYR at $0.50.
Are aTYR PHARMA INC insiders selling ATYR stock?
3 insiders reported sales worth $6K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is ATYR's 52-week range?
Over the past year ATYR has traded between $0.25 and $1.06. It last closed at $0.25 on Oct 9, 2026.