NASDAQ · ATYR

aTYR Pharma INC

Closing price · Nov 13, 2026 $6.105
Last insider buy price $0.50 Paid by Director Paul Schimmel on May 27, 2026 (Form 4). Not today's price.

Latest quarter · ended Sep 30, 2026

Sales slipped and cash got weaker

descriptionFiled Nov 6, 2026
Revenue growthShrinking
−100.0%
Quarter ended Mar 31, 2025: −100.0% sales vs. a year beforeQuarter ended Sep 30, 2026: −100.0% sales vs. a year before
Mar '25Sep '26
$0 vs. $190K a year ago
Cash from operationsBetter
−$9.51M
Quarter ended Dec 31, 2024: −$13.1M cash from operationsQuarter ended Mar 31, 2025: −$15.4M cash from operationsQuarter ended Jun 30, 2025: −$13.9M cash from operationsQuarter ended Sep 30, 2025: −$20.5M cash from operationsQuarter ended Dec 31, 2025: −$12.2M cash from operationsQuarter ended Mar 31, 2026: −$12.5M cash from operationsQuarter ended Jun 30, 2026: −$9.35M cash from operationsQuarter ended Sep 30, 2026: −$9.51M cash from operations
Dec '24Sep '26
vs. −$20.5M a year ago
Share countBuying back
−97.4%
Quarter ended Dec 31, 2024: 88.86M sharesQuarter ended Mar 31, 2025: 89M sharesQuarter ended Jun 30, 2025: 97.99M sharesQuarter ended Sep 30, 2025: 97.99M sharesQuarter ended Dec 31, 2025: 98.05M sharesQuarter ended Mar 31, 2026: 98.05M sharesQuarter ended Jun 30, 2026: 98.09M sharesQuarter ended Sep 30, 2026: 2.55M shares
Dec '24Sep '26
2.55M shares vs. 97.99M a year ago

Numbers come from the company's own 10-Q and 10-K reports filed with the SEC. Each bar is one quarter, oldest on the left. The colored bar is the latest. Hover over or tap a bar to see its number.

Smart money pulse

What insiders and funds are doing

Buying Insiders: as of Nov 13 Funds: as of Jun 30, 2026
−1000+100 +50
  • account_balance
    1 fund bought, 0 sold in the quarter ended Jun 30, 2026, counting funds that hold 500 stocks or fewer and $1M+ of this one. Index funds and banks are left out.
  • info
    3 real insider sales in 12 months. $6.29K in total, not counting planned sales.

−100 means everyone selling, +100 everyone buying. This is data, not advice.

How the Pulse works

Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.

Who owns it

91 funds report owning ATYR, down from 110

Holdings as of Jun 30, 2026
New18
Added26
Held19
Trimmed28
Sold out37

Together they reported 39.04M shares, more than the 2.55M that exist. That happens with 13F data: some shares are counted by more than one manager, and some are lent out. So we show fund counts, not an ownership percent.

Last quarter

Who bought and who sold

Apr–Jun 2026
Kalehua Capital Management LLC
New

Change in shares held from Mar 31 to Jun 30, 2026, biggest holdings first. Only funds that hold 500 stocks or fewer and $1M+ of this one: index funds and banks own almost everything, so their changes say little. Bars stop at ±100%.

Insider trades · last 12 months

Real buys and sales

● Open-market buy● Open-market sale
CEOCFOOther officersDirectorsDecJanFebMarAprMayJunJulAugSepOctNovOption exercise · Feb 3 · 3,750 shOption exercise · Feb 3 · 2,687 shOption exercise · Feb 3 · 10,375 shOpen-market sale · Feb 4 · $1.53KOpen-market sale · Feb 4 · $1.1KOpen-market sale · Feb 4 · $3.67KOpen-market buy · May 27 · $50K
CEOCFOOther officersDirectorsDecFebAprJunAugOctOption exercise · Feb 3 · 3,750 shOption exercise · Feb 3 · 2,687 shOption exercise · Feb 3 · 10,375 shOpen-market sale · Feb 4 · $1.53KOpen-market sale · Feb 4 · $1.1KOpen-market sale · Feb 4 · $3.67KOpen-market buy · May 27 · $50K

Last 12 months. No real trades in the last 6.

Showing 4 real trades. Hidden: 3 option exercises. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.

Real trades, newest first

May 27 Paul Schimmel Director Open-market buy $50K 100,000 sh at $0.50
Feb 4 Sanjay Shukla President and CEO, Director Open-market sale $3.67K 3,745 sh at $0.98 Sold 2% of stake
Feb 4 Jill Broadfoot CFO Open-market sale $1.53K 1,558 sh at $0.98 Sold 4% of stake
Feb 4 Nancy Denyes General Counsel Open-market sale $1.1K 1,118 sh at $0.98 Sold 3% of stake

Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.

Top holders

Biggest funds in ATYR

As of Jun 30, 2026
FundOwnsValueChange
Federated Hermes, Inc.333.8%$5.08M−19%
Vanguard Capital Management LLC149.4%$2.27MSame
Gsa Capital Partners LLP135.5%$2.06M+105%
AQR Capital Management LLC102.4%$1.56M+426%
FMR LLC96.9%$1.47M−83%

"Owns" is shares reported divided by shares outstanding.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast