aTyr Pharma, Inc.
aTyr Pharma, Inc. (ATYR) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · ATYR · as of Jun 9, 2026
Activity summary
Buy transactions
3
P-Purchase only
Sell transactions
3
12 Months
Buy/Sell ratio
1.00
Buy/Sell (by trades)
Overall sentiment
aTyr Pharma, Inc. insiders have shown mixed buying and selling activity over the past 12 Months.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
ATYR insider buying and selling by quarter
ATYR insider selling · ATYR insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · ATYR ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
ATYR executive sell shares · ATYR board member insider trading · ATYR insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 27, 2026 | SCHIMMEL PAUL Director | Purchase | 100,000 | $50K | Form 4 |
| Feb 3, 2026 | Shukla Sanjay President and CEO · Director | Option | 10,375 | — | Form 4 |
| Feb 4, 2026 | Shukla Sanjay President and CEO · Director | Sale | 3,745 | $4K | Form 4 |
| Feb 3, 2026 | Broadfoot Jill Marie CFO | Option | 3,750 | — | Form 4 |
| Feb 4, 2026 | Broadfoot Jill Marie CFO | Sale | 1,558 | $2K | Form 4 |
| Feb 3, 2026 | DENYES NANCY General Counsel | Option | 2,687 | — | Form 4 |
| Feb 4, 2026 | DENYES NANCY General Counsel | Sale | 1,118 | $1K | Form 4 |
| Oct 9, 2025 | SCHIMMEL PAUL Director | Purchase | 317,999 | $299K | Form 4 |
| Oct 8, 2025 | SCHIMMEL PAUL Director | Purchase | 682,001 | $612K | Form 4 |
| Mar 17, 2025 | Gross Jane A Director | Purchase | 3,750 | $15K | Form 4 |
| Feb 3, 2025 | Shukla Sanjay President and CEO · Director | Option | 10,375 | — | Form 4 |
| Feb 3, 2025 | Broadfoot Jill Marie CFO | Option | 3,750 | — | Form 4 |
| Feb 4, 2025 | Broadfoot Jill Marie CFO | Sale | 1,254 | $5K | Form 4 |
| Feb 3, 2025 | DENYES NANCY General Counsel | Option | 2,687 | — | Form 4 |
| Feb 4, 2025 | DENYES NANCY General Counsel | Sale | 899 | $3K | Form 4 |
| Jul 24, 2024 | SCHIMMEL PAUL Director | Purchase | 52,300 | $101K | Form 4 |
| Jul 23, 2024 | SCHIMMEL PAUL Director | Purchase | 6,648 | $12K | Form 4 |
| Jul 22, 2024 | SCHIMMEL PAUL Director | Purchase | 41,052 | $72K | Form 4 |
| Jun 5, 2024 | DENYES NANCY General Counsel | Purchase | 5,000 | $9K | Form 4 |
| Nov 1, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Purchase | 24,728 | $119K | Form 4 |
| Nov 8, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Sale | 1,070 | $5K | Form 4 |
| Nov 9, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Sale | 5,819 | $24K | Form 4 |
| Nov 10, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Sale | 5,860 | $23K | Form 4 |
| Nov 13, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Sale | 1,083 | $4K | Form 4 |
| Oct 1, 2017 | EcoR1 Capital Fund Qualified, L.P. 10 percent owner | Purchase | 4,879 | $25K | Form 4 |
Shukla Sanjay
President and CEO · Director
Date
Feb 3
Shares
10,375
Price
—
Value
—
Shukla Sanjay
President and CEO · Director
Date
Feb 4
Shares
3,745
Price
$0.98
Value
$4K
Shukla Sanjay
President and CEO · Director
Date
Feb 3
Shares
10,375
Price
—
Value
—
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Nov 1
Shares
24,728
Price
$4.80
Value
$119K
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Nov 8
Shares
1,070
Price
$4.30
Value
$5K
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Nov 9
Shares
5,819
Price
$4.15
Value
$24K
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Nov 10
Shares
5,860
Price
$4.00
Value
$23K
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Nov 13
Shares
1,083
Price
$3.95
Value
$4K
EcoR1 Capital Fund Qualified, L.P.
10 percent owner
Date
Oct 1
Shares
4,879
Price
$5.05
Value
$25K
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About ATYR insider trading
ATYR insider trades
aTyr Pharma, Inc. (ATYR) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including SCHIMMEL PAUL (Director), Shukla Sanjay (President and CEO · Director), Broadfoot Jill Marie (CFO). Over the past 12 months, 4 insiders have filed transactions with the SEC. ATYR insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For aTyr Pharma, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
ATYR insider trading · 5 questionsThe insiders of aTyr Pharma, Inc. (ATYR) include executives and directors such as SCHIMMEL PAUL (Director), Shukla Sanjay (President and CEO · Director), Broadfoot Jill Marie (CFO), among others. Over the past 12 months, 4 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026