InsiderClue
← All stocks

aTYR PHARMA INC

ATYR Net buying
CIK 0001339970 #4704 in the set updated 19 Sep 2026
Bought (120 mo)
$6.72M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$3.21M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$3.21M
28 of 28 sales
Net
+$3.51M
+$3.51M against sales at will

By person

13 insiders · 80 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
SCHIMMEL PAUL
Director
$5.69M (21)
$30.74K (1)
+$5.66M
1,217,176
1.24%
$604.08K
—
EcoR1 Capital Fund Qualified, L.P. entity
10% owner
$143.33K (2)
$3.06M (7)
−$2.91M
0
0.0000%
$0.00
−100.0%
MENDLEIN JOHN
Director
$362.94K (7)
—
+$362.94K
615,382
0.6274%
$305.41K
+135.8%
Shukla Sanjay
President and CEO
$286.25K (12)
$12.62K (3)
+$273.63K
153,553
0.1565%
$76.21K
+61,321%
Coughlin Timothy
Director
$87.50K (1)
—
+$87.50K
56,000
0.0571%
$27.79K
—
Broadfoot Jill Marie
Chief Financial Officer
$101.65K (6)
$17.14K (6)
+$84.51K
37,296
0.0380%
$18.51K
—
CLARKE JOHN K
Director
—
$72.06K (5)
−$72.06K
127,880
0.1304%
$63.47K
−8.3%
Amanullah Ashraf
See Remarks
$24.75K (1)
$4.77K (1)
+$19.98K
26,264
0.0268%
$13.03K
+162.7%
Gross Jane A
Director
$15.00K (1)
—
+$15.00K
9,750
0.0099%
$4.84K
—
Blake John T
Senior Vice President, Finance
—
$4.77K (1)
−$4.77K
1,932
0.0020%
$958.85
—
DENYES NANCY
General Counsel
$9.28K (1)
$7.75K (4)
+$1.53K
33,124
0.0338%
$16.44K
+201.9%
Lucas Svetlana
Director
—
—
—
6,000
0.0061%
$2.98K
—
Zaknoen Sara
Director
—
—
—
6,000
0.0061%
$2.98K
—

Individual transactions

80
Insider
Date
Role
Action
Shares
Price
Amount
SCHIMMEL PAUL
27 May 2026
Director
Buy indirect
100,000
$0.50
$49.63K
DENYES NANCY
4 Feb 2026
General Counsel
Sell
1,118
$0.98
$1.09K
Broadfoot Jill Marie
4 Feb 2026
Chief Financial Officer
Sell
1,558
$0.98
$1.52K
Shukla Sanjay
4 Feb 2026
President and CEO
Sell
3,745
$0.98
$3.66K
SCHIMMEL PAUL
9 Oct 2025
Director
Buy indirect
317,999
$0.94
$299.36K
SCHIMMEL PAUL
8 Oct 2025
Director
Buy indirect
682,001
$0.90
$612.44K
Gross Jane A
17 Mar 2025
Director
Buy
3,750
$4.00
$15.00K
DENYES NANCY
4 Feb 2025
General Counsel
Sell
899
$3.78
$3.40K
Broadfoot Jill Marie
4 Feb 2025
Chief Financial Officer
Sell
1,254
$3.78
$4.74K
SCHIMMEL PAUL
24 Jul 2024
Director
Buy indirect
52,300
$1.93
$101.04K
SCHIMMEL PAUL
23 Jul 2024
Director
Buy indirect
6,648
$1.82
$12.07K
SCHIMMEL PAUL
22 Jul 2024
Director
Buy indirect
41,052
$1.74
$71.50K
DENYES NANCY
5 Jun 2024
General Counsel
Buy
5,000
$1.86
$9.28K
Shukla Sanjay
31 May 2024
President and CEO
Buy
20,000
$1.81
$36.14K
Broadfoot Jill Marie
31 May 2024
Chief Financial Officer
Buy
5,000
$1.79
$8.95K
Coughlin Timothy
30 May 2024
Director
Buy indirect
50,000
$1.75
$87.50K
Broadfoot Jill Marie
6 Feb 2024
Chief Financial Officer
Sell
1,590
$1.69
$2.69K
Shukla Sanjay
12 Dec 2023
President and CEO
Buy
12,000
$1.18
$14.14K
Shukla Sanjay
11 Dec 2023
President and CEO
Buy
3,000
$1.17
$3.51K
Shukla Sanjay
13 Nov 2023
President and CEO
Buy
13,578
$1.11
$15.09K
Shukla Sanjay
10 Nov 2023
President and CEO
Buy
1,422
$1.14
$1.62K
Shukla Sanjay
28 Jul 2023
President and CEO
Buy
15,000
$2.01
$30.22K
SCHIMMEL PAUL
10 May 2023
Director
Buy indirect
200,000
$2.25
$450.00K
Broadfoot Jill Marie
6 Feb 2023
Chief Financial Officer
Sell
1,566
$2.36
$3.70K
Shukla Sanjay
21 Nov 2022
President and CEO
Buy
10,000
$2.14
$21.41K
Shukla Sanjay
1 Jul 2022
President and CEO
Buy
15,000
$2.88
$43.16K
Broadfoot Jill Marie
13 Jan 2022
Chief Financial Officer
Buy
1,923
$6.75
$12.98K
Shukla Sanjay
7 Jan 2022
President and CEO
Buy
5,000
$6.76
$33.81K
Shukla Sanjay
15 Nov 2021
President and CEO
Buy
2,500
$8.58
$21.44K
SCHIMMEL PAUL
20 Sep 2021
Director
Buy
250,000
$8.00
$2.00M
CLARKE JOHN K
21 May 2021
Director
Sell indirect
2,500
$4.34
$10.85K
Shukla Sanjay
18 May 2021
President and CEO
Buy
10,000
$4.01
$40.10K
SCHIMMEL PAUL
18 May 2021
Director
Buy indirect
50,000
$3.98
$199.00K
Shukla Sanjay
9 Feb 2021
President and CEO
Sell
778
$7.66
$5.96K
Broadfoot Jill Marie
9 Feb 2021
Chief Financial Officer
Sell
390
$7.66
$2.99K
CLARKE JOHN K
2 Sep 2020
Director
Sell indirect
7,260
$4.01
$29.11K
CLARKE JOHN K
28 Aug 2020
Director
Sell indirect
100
$4.00
$400.00
CLARKE JOHN K
27 Aug 2020
Director
Sell indirect
5,440
$4.09
$22.25K
CLARKE JOHN K
26 Aug 2020
Director
Sell indirect
2,200
$4.30
$9.45K
Shukla Sanjay
19 Jun 2020
President and CEO
Buy
6,000
$4.27
$25.62K
Broadfoot Jill Marie
19 Jun 2020
Chief Financial Officer
Buy
1,850
$4.22
$7.81K
SCHIMMEL PAUL
20 May 2020
Director
Sell indirect
8,447
$3.64
$30.74K
DENYES NANCY
20 May 2020
General Counsel
Sell
322
$3.62
$1.17K
SCHIMMEL PAUL
10 Feb 2020
Director
Buy indirect
254,000
$4.25
$1.08M
Broadfoot Jill Marie
7 Feb 2020
Chief Financial Officer
Sell
375
$4.03
$1.51K
Shukla Sanjay
7 Feb 2020
President and CEO
Sell
745
$4.03
$3.00K
DENYES NANCY
17 May 2019
General Counsel
Sell
4,651
$0.45
$2.09K
MENDLEIN JOHN
21 Dec 2018
Director
Buy
195,000
$0.42
$82.60K
MENDLEIN JOHN
20 Dec 2018
Director
Buy
50,000
$0.41
$20.65K
SCHIMMEL PAUL
26 Nov 2018
Director
Buy indirect
147,225
$0.54
$79.80K
Broadfoot Jill Marie
20 Sep 2018
Chief Financial Officer
Buy
38,000
$0.84
$31.74K
Broadfoot Jill Marie
19 Sep 2018
Chief Financial Officer
Buy
26,000
$0.81
$21.12K
Broadfoot Jill Marie
14 Sep 2018
Chief Financial Officer
Buy
26,000
$0.73
$19.06K
SCHIMMEL PAUL
4 Sep 2018
Director
Buy indirect
20,749
$0.76
$15.71K
SCHIMMEL PAUL
31 Aug 2018
Director
Buy indirect
22,000
$0.72
$15.75K
SCHIMMEL PAUL
30 Aug 2018
Director
Buy indirect
89,275
$0.76
$67.48K
SCHIMMEL PAUL
29 Aug 2018
Director
Buy indirect
75,136
$0.72
$54.09K
SCHIMMEL PAUL
18 May 2018
Director
Buy indirect
150,000
$1.00
$149.45K
EcoR1 Capital Fund Qualified, L.P.
16 May 2018
10% owner
Sell
2,733,231
$0.81
$2.22M
EcoR1 Capital Fund Qualified, L.P.
15 May 2018
10% owner
Sell
121,294
$1.43
$173.06K
EcoR1 Capital Fund Qualified, L.P.
14 May 2018
10% owner
Sell
354,791
$1.72
$609.07K
Amanullah Ashraf
8 Feb 2018
See Remarks
Sell
1,402
$3.40
$4.77K
Blake John T
8 Feb 2018
Senior Vice President, Finance
Sell
1,402
$3.40
$4.77K
EcoR1 Capital Fund Qualified, L.P.
13 Nov 2017
10% owner
Sell
1,083
$3.95
$4.28K
EcoR1 Capital Fund Qualified, L.P.
10 Nov 2017
10% owner
Sell
5,860
$4.00
$23.44K
EcoR1 Capital Fund Qualified, L.P.
9 Nov 2017
10% owner
Sell
5,819
$4.15
$24.15K
EcoR1 Capital Fund Qualified, L.P.
8 Nov 2017
10% owner
Sell
1,070
$4.30
$4.60K
EcoR1 Capital Fund Qualified, L.P.
1 Nov 2017
10% owner
Buy
24,728
$4.80
$118.69K
EcoR1 Capital Fund Qualified, L.P.
1 Oct 2017
10% owner
Buy
4,879
$5.05
$24.64K
MENDLEIN JOHN
31 Aug 2017
CEO and Director
Buy
37,736
$2.65
$100.00K
SCHIMMEL PAUL
31 Aug 2017
Director
Buy indirect
94,336
$2.65
$249.99K
MENDLEIN JOHN
24 Apr 2017
CEO and Director
Buy
124
$3.00
$372.00
MENDLEIN JOHN
20 Apr 2017
CEO and Director
Buy
1,552
$3.00
$4.66K
MENDLEIN JOHN
18 Apr 2017
CEO and Director
Buy
1,000
$3.00
$3.00K
SCHIMMEL PAUL
21 Dec 2016
Director
Buy indirect
10,000
$2.28
$22.82K
Amanullah Ashraf
20 Dec 2016
Vice President, Manufacturing
Buy
11,000
$2.25
$24.75K
SCHIMMEL PAUL
20 Dec 2016
Director
Buy indirect
15,000
$2.27
$34.11K
MENDLEIN JOHN
19 Dec 2016
CEO and Director
Buy
69,000
$2.20
$151.66K
SCHIMMEL PAUL
16 Dec 2016
Director
Buy indirect
10,000
$2.40
$23.97K
SCHIMMEL PAUL
15 Dec 2016
Director
Buy indirect
40,000
$2.50
$99.91K

What was left out

Form 4 filings counted 183
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 28
Transactions with no price 0
Shares from compensation/vesting 2,517,571
Sales filed before the plan box existed 22
History held since 15 Sep 2016