ATYR PHARMA INC (ATYR) Institutional Shareholders
ATYR PHARMA INC (ATYR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $23.18M in ATYR holdings during the latest filing period.
Federated Hermes, Inc. is currently the largest disclosed institutional shareholder of ATYR tracked by InsiderSet, reporting ownership valued at approximately $5.08M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.60M, representing an estimated loss of -48.89% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 75% of the total disclosed ATYR value among the investors covered in this analysis. Major shareholders include Federated Hermes, Inc., Vanguard Capital Management Llc, Gsa Capital Partners Llp, and several other long-term asset managers with concentrated positions in ATYR PHARMA INC (ATYR).
This page ranks the largest institutional ATYR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
87
Total Reported Value
$23.18M
Largest Holder
Federated Hermes, Inc.
Largest Position
$5.08M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
135
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Federated Hermes, Inc. | 0.01% | 8,509,678 | $5,078,576 | $2,595,452 | -$2,483,124 | -48.89% | |
| Vanguard Capital Management Llc | 0.00% | 3,808,091 | $2,273,430 | $1,161,468 | -$1,111,962 | -48.91% | |
| Gsa Capital Partners Llp | 0.13% | 3,454,863 | $2,062,000 | $1,053,733 | -$1,008,267 | -48.90% | |
| Aqr Capital Management Llc | 0.00% | 2,610,548 | $1,557,975 | $796,217 | -$761,758 | -48.89% | |
| Fmr Llc | 0.00% | 2,471,418 | $1,474,942 | $753,782 | -$721,160 | -48.89% | |
| Blackrock, Inc. | 0.00% | 1,827,332 | $1,090,552 | $557,336 | -$533,216 | -48.89% | |
| Kalehua Capital Management Llc | 0.61% | 1,788,167 | $1,067,178 | $545,391 | -$521,787 | -48.89% | |
| Jane Street Group, Llc | 0.00% | 1,721,297 | $1,027,270 | $524,996 | -$502,274 | -48.89% | |
| Ubs Group Ag | 0.00% | 1,531,151 | $914,097 | $467,001 | -$447,096 | -48.91% | |
| Morgan Stanley | 0.00% | 1,343,636 | $801,882 | $409,809 | -$392,073 | -48.89% | |
| Two Sigma Investments, Lp | 0.00% | 1,245,147 | $743,104 | $379,770 | -$363,334 | -48.89% | |
| Citadel Advisors Llc | 0.00% | 1,242,067 | $741,265 | $378,830 | -$362,435 | -48.89% | |
| Geode Capital Management, Llc | 0.00% | 1,177,020 | $702,734 | $358,991 | -$343,743 | -48.92% | |
| Susquehanna International Group, Llp | 0.00% | 747,039 | $445,833 | $227,847 | -$217,986 | -48.89% | |
| Millennium Management Llc | 0.00% | 656,051 | $391,531 | $200,096 | -$191,435 | -48.89% | |
| Goldman Sachs Group Inc | 0.00% | 641,208 | $382,672 | $195,568 | -$187,104 | -48.89% | |
| Vanguard Fiduciary Trust Co | 0.00% | 576,125 | $343,947 | $175,718 | -$168,229 | -48.91% | |
| State Street Corp | 0.00% | 494,951 | $295,387 | $150,960 | -$144,427 | -48.89% | |
| Marshall Wace, Llp | 0.00% | 368,120 | $220,872 | $112,277 | -$108,595 | -49.17% | |
| Xtx Topco Ltd | 0.00% | 226,678 | $135,281 | $69,137 | -$66,144 | -48.89% | |
| Northern Trust Corp | 0.00% | 220,141 | $131,380 | $67,143 | -$64,237 | -48.89% | |
| Bank Of America Corp | 0.00% | 207,468 | $123,650 | $63,278 | -$60,372 | -48.83% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 165,222 | $98,604 | $50,393 | -$48,211 | -48.89% |
| Jpmorgan Chase & Co | 0.00% | 150,666 | $85,337 | $45,953 | -$39,384 | -46.15% | |
| Group One Trading Llc | 0.00% | 138,878 | $82,882 | $42,358 | -$40,524 | -48.89% | |
| Qube Research & Technologies Ltd | 0.00% | 126,996 | $75,791 | $38,734 | -$37,057 | -48.89% | |
| Hrt Financial Lp | 0.00% | 126,681 | $75,000 | $38,638 | -$36,362 | -48.48% | |
| Dimensional Fund Advisors Lp | 0.00% | 90,861 | $54,114 | $27,713 | -$26,401 | -48.79% | |
| Hsbc Holdings Plc | 0.00% | 66,185 | $38,361 | $20,186 | -$18,175 | -47.38% | |
| Mariner, Llc | 0.00% | 58,658 | $34,998 | $17,891 | -$17,107 | -48.88% | |
| Hohimer Wealth Management, Llc | 0.00% | 55,000 | $32,824 | $16,775 | -$16,049 | -48.89% | |
| Mercer Global Advisors Inc | 0.00% | 53,531 | $31,947 | $16,327 | -$15,620 | -48.89% | |
| Kingswood Wealth Advisors, Llc | 0.00% | 52,000 | $31,034 | $15,860 | -$15,174 | -48.89% | |
| Schonfeld Strategic Advisors Llc | 0.00% | 50,880 | $30,364 | $15,518 | -$14,846 | -48.89% | |
| Adar1 Capital Management, Llc | 0.00% | 50,685 | $30,249 | $15,459 | -$14,790 | -48.89% | |
| Alpha Wealth Funds, Llc | 0.02% | 50,000 | $29,890 | $15,250 | -$14,640 | -48.98% | |
| Tower Research Capital Llc (Trc) | 0.00% | 48,768 | $29,105 | $14,874 | -$14,231 | -48.89% | |
| Cwm, Llc | 0.00% | 36,010 | $28,088 | $10,983 | -$17,105 | -60.90% | |
| Virtu Financial Llc | 0.00% | 46,921 | $28,000 | $14,311 | -$13,689 | -48.89% | |
| Wealth Enhancement Advisory Services, Llc | 0.00% | 43,948 | $23,925 | $13,404 | -$10,521 | -43.97% | |
| Point72 Asset Management, L.P. | 0.00% | 37,278 | $22,248 | $11,370 | -$10,878 | -48.90% | |
| Hobbs Group Advisors, Llc | 0.01% | 35,992 | $21,480 | $10,978 | -$10,502 | -48.89% | |
| Lpl Financial Llc | 0.00% | 35,549 | $21,216 | $10,842 | -$10,374 | -48.89% | |
| Captrust Financial Advisors | 0.00% | 33,946 | $20,259 | $10,354 | -$9,905 | -48.89% | |
| Vanguard Global Advisers, Llc | 0.00% | 33,414 | $19,948 | $10,191 | -$9,757 | -48.91% | |
| Barclays Plc | 0.00% | 31,029 | $18,518 | $9,464 | -$9,054 | -48.89% | |
| Rhumbline Advisers | 0.00% | 30,412 | $18,155 | $9,276 | -$8,879 | -48.91% | |
| Cerity Partners Llc | 0.00% | 29,232 | $17,446 | $8,916 | -$8,530 | -48.90% | |
| Rockefeller Capital Management L.P. | 0.00% | 28,118 | $16,781 | $8,576 | -$8,205 | -48.89% | |
| Bnp Paribas Financial Markets | 0.00% | 25,055 | $14,953 | $7,642 | -$7,311 | -48.89% |
Frequently asked questions about ATYR
Who are the largest institutional holders of ATYR?
The largest institutional holders of ATYR reported in the latest SEC Form 13F filings include Federated Hermes, Inc., Vanguard Capital Management Llc, Gsa Capital Partners Llp, Aqr Capital Management Llc, and Fmr Llc. InsiderSet ranks institutional holders by their latest reported ATYR position.
What is ATYR institutional ownership?
This page tracks ATYR positions reported by institutional investment managers through SEC Form 13F. ATYR PHARMA INC (ATYR) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ATYR?
InsiderSet currently tracks 87 institutional managers reporting ATYR holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ATYR shareholders.
How much ATYR stock do institutions own?
Institutional investment managers disclosed approximately $23.18M in ATYR holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ATYR institutional ownership last updated?
The latest ATYR institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ATYR holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ATYR position after the reporting date.
Are institutions buying or selling ATYR?
Institutional buying and selling can be analyzed by comparing ATYR positions across consecutive 13F reporting periods. InsiderSet's ATYR Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ATYR ownership changes.
How has ATYR institutional ownership changed over time?
InsiderSet tracks ATYR institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.