ATYR

aTyr Pharma, Inc.$0.53+0.04 (+8.88%)

Prev Close$0.49·MCap$77.5M·P/E—·Vol5.94M·Yield—

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Buys (12M)

$961.4K

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Sells (12M)

$12.5K

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Net Activity

Net Buyer

$948.9K

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at aTyr Pharma, Inc. (ATYR) has been dominated by buying, with 2 insider purchases totaling $961.4K and 6 insider sales totaling $12.5K. The most recent insider transaction was by SCHIMMEL PAUL (director), who purchased $49.6K worth of shares on May 28, 2026. aTyr Pharma, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $77.5M.

ATYR Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 28, 2026	SCHIMMEL PAUL	director	Buy	100,000	$0.50	$49.6K	779,143
Feb 4, 2026	Broadfoot Jill Marie	officer: Chief Financial Officer	Sell	1,558	$0.98	$1.5K	37,296
Feb 4, 2026	DENYES NANCY	officer: General Counsel	Sell	1,118	$0.98	$1.1K	33,124
Feb 4, 2026	Shukla Sanjay	director, officer: President and CEO	Sell	3,745	$0.98	$3.7K	153,553
Feb 3, 2026	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,558	$0.98	$1.5K	0
Feb 3, 2026	DENYES NANCY	General Counsel	Sell	1,118	$0.98	$1.1K	0
Feb 3, 2026	Shukla Sanjay	President and CEO	Sell	3,745	$0.98	$3.7K	0
Oct 8, 2025	SCHIMMEL PAUL	Director	Buy	1,000,000	$0.91	$911.8K1.0% OS	0
Mar 17, 2025	Gross Jane A	Director	Buy	3,750	$4.00	$15.0K	0
Feb 3, 2025	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,254	$3.78	$4.7K	0
Feb 3, 2025	DENYES NANCY	General Counsel	Sell	899	$3.78	$3.4K	0
Jul 22, 2024	SCHIMMEL PAUL	Director	Buy	100,000	$1.85	$184.6K	0
Jun 5, 2024	DENYES NANCY	General Counsel	Buy	5,000	$1.86	$9.3K	0
May 31, 2024	Broadfoot Jill Marie	Chief Financial Officer	Buy	5,000	$1.79	$8.9K	0
May 31, 2024	Shukla Sanjay	President and CEO	Buy	20,000	$1.81	$36.1K	0
May 30, 2024	COUGHLIN TIMOTHY	Director	Buy	50,000	$1.75	$87.5K	0
Feb 5, 2024	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,590	$1.69	$2.7K	0
Dec 11, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$1.18	$17.6K	0
Nov 10, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$1.11	$16.7K	0
Jul 28, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$2.01	$30.2K	0
May 10, 2023	SCHIMMEL PAUL	Director	Buy	200,000	$2.25	$450.0K	0
Feb 3, 2023	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,566	$2.36	$3.7K	0
Nov 21, 2022	Shukla Sanjay	President and CEO	Buy	10,000	$2.14	$21.4K	0
Jul 1, 2022	Shukla Sanjay	President and CEO	Buy	15,000	$2.88	$43.2K	0
Jan 13, 2022	Broadfoot Jill Marie	Chief Financial Officer	Buy	1,923	$6.75	$13.0K	0
Jan 7, 2022	Shukla Sanjay	President and CEO	Buy	5,000	$6.76	$33.8K	0
Nov 15, 2021	Shukla Sanjay	President and CEO	Buy	2,500	$8.58	$21.4K	0
Sep 20, 2021	SCHIMMEL PAUL	Director	Buy	250,000	$8.00	$2.00M	0
May 21, 2021	CLARKE JOHN K	Director	Sell	2,500	$4.34	$10.8K	0
May 18, 2021	SCHIMMEL PAUL	Director	Buy	50,000	$3.98	$199.0K	0
May 18, 2021	Shukla Sanjay	President and CEO	Buy	10,000	$4.01	$40.1K	0

ATYR Insider Buying Activity

The following table shows recent insider purchases of aTyr Pharma, Inc. (ATYR) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 28, 2026	SCHIMMEL PAUL	director	Buy	100,000	$0.50	$49.6K	779,143
Oct 8, 2025	SCHIMMEL PAUL	Director	Buy	1,000,000	$0.91	$911.8K1.0% OS	0
Mar 17, 2025	Gross Jane A	Director	Buy	3,750	$4.00	$15.0K	0
Jul 22, 2024	SCHIMMEL PAUL	Director	Buy	100,000	$1.85	$184.6K	0
Jun 5, 2024	DENYES NANCY	General Counsel	Buy	5,000	$1.86	$9.3K	0
May 31, 2024	Broadfoot Jill Marie	Chief Financial Officer	Buy	5,000	$1.79	$8.9K	0
May 31, 2024	Shukla Sanjay	President and CEO	Buy	20,000	$1.81	$36.1K	0
May 30, 2024	COUGHLIN TIMOTHY	Director	Buy	50,000	$1.75	$87.5K	0
Dec 11, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$1.18	$17.6K	0
Nov 10, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$1.11	$16.7K	0
Jul 28, 2023	Shukla Sanjay	President and CEO	Buy	15,000	$2.01	$30.2K	0
May 10, 2023	SCHIMMEL PAUL	Director	Buy	200,000	$2.25	$450.0K	0
Nov 21, 2022	Shukla Sanjay	President and CEO	Buy	10,000	$2.14	$21.4K	0
Jul 1, 2022	Shukla Sanjay	President and CEO	Buy	15,000	$2.88	$43.2K	0
Jan 13, 2022	Broadfoot Jill Marie	Chief Financial Officer	Buy	1,923	$6.75	$13.0K	0
Jan 7, 2022	Shukla Sanjay	President and CEO	Buy	5,000	$6.76	$33.8K	0
Nov 15, 2021	Shukla Sanjay	President and CEO	Buy	2,500	$8.58	$21.4K	0
Sep 20, 2021	SCHIMMEL PAUL	Director	Buy	250,000	$8.00	$2.00M	0
May 18, 2021	SCHIMMEL PAUL	Director	Buy	50,000	$3.98	$199.0K	0
May 18, 2021	Shukla Sanjay	President and CEO	Buy	10,000	$4.01	$40.1K	0

ATYR Insider Selling Activity

The following table shows recent insider sales of aTyr Pharma, Inc. (ATYR) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Feb 4, 2026	Broadfoot Jill Marie	officer: Chief Financial Officer	Sell	1,558	$0.98	$1.5K	37,296
Feb 4, 2026	DENYES NANCY	officer: General Counsel	Sell	1,118	$0.98	$1.1K	33,124
Feb 4, 2026	Shukla Sanjay	director, officer: President and CEO	Sell	3,745	$0.98	$3.7K	153,553
Feb 3, 2026	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,558	$0.98	$1.5K	0
Feb 3, 2026	DENYES NANCY	General Counsel	Sell	1,118	$0.98	$1.1K	0
Feb 3, 2026	Shukla Sanjay	President and CEO	Sell	3,745	$0.98	$3.7K	0
Feb 3, 2025	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,254	$3.78	$4.7K	0
Feb 3, 2025	DENYES NANCY	General Counsel	Sell	899	$3.78	$3.4K	0
Feb 5, 2024	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,590	$1.69	$2.7K	0
Feb 3, 2023	Broadfoot Jill Marie	Chief Financial Officer	Sell	1,566	$2.36	$3.7K	0
May 21, 2021	CLARKE JOHN K	Director	Sell	2,500	$4.34	$10.8K	0