ATYR PHARMA INC (ATYR) Institutional Ownership Changes & 13F Activity
ATYR PHARMA INC (ATYR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Fmr Llc, Ubs Group Ag, Aqr Capital Management Llc, Kalehua Capital Management Llc, and Jane Street Group, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| State Street Corp | Sell | -1,259,448 | -71.8% | 494,951 | $295.39K | Q2 2026 | Sep 22, 2026 |
| Citadel Advisors Llc | Buy | +1,194,695 | +2521.9% | 1,242,067 | $741.26K | Q2 2026 | Sep 02, 2026 |
| Kalehua Capital Management Llc | Buy | +1,788,167 | — | 1,788,167 | $1.07M | Q2 2026 | Aug 19, 2026 |
| Mercer Global Advisors Inc | Buy | +38,326 | +252.1% | 53,531 | $31.95K | Q2 2026 | Aug 19, 2026 |
| Aqr Capital Management Llc | Buy | +2,114,530 | +426.3% | 2,610,548 | $1.56M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +1,672,795 | +3448.9% | 1,721,297 | $1.03M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -985,195 | -60.0% | 656,051 | $391.53K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +357,972 | +126.4% | 641,208 | $382.67K | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +126,996 | — | 126,996 | $75.79K | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +126,681 | — | 126,681 | $75.00K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -119,705 | -13.8% | 747,039 | $445.83K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +115,255 | +103.4% | 226,678 | $135.28K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +100,582 | +8.8% | 1,245,147 | $743.10K | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -96,091 | -31.7% | 207,468 | $123.65K | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +50,880 | — | 50,880 | $30.36K | Q2 2026 | Aug 14, 2026 |
| Hsbc Holdings Plc | Buy | +47,971 | +263.4% | 66,185 | $38.36K | Q2 2026 | Aug 14, 2026 |
| Group One Trading Llc | Sell | -45,136 | -24.5% | 138,878 | $82.88K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Sell | -40,040 | -86.0% | 6,500 | $3.88K | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +37,278 | — | 37,278 | $22.25K | Q2 2026 | Aug 14, 2026 |
| Cerity Partners Llc | Buy | +29,232 | — | 29,232 | $17.45K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Sell | -14,094 | -31.2% | 31,029 | $18.52K | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +12,685 | +122.8% | 23,015 | $13.73K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Sell | -5,150 | -46.2% | 5,996 | $3.00K | Q2 2026 | Aug 14, 2026 |
| Mai Capital Management | Buy | +3,342 | +24.7% | 16,846 | $10.05K | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Buy | +200 | +1.2% | 16,801 | $10.03K | Q2 2026 | Aug 14, 2026 |
| Nfsg Corp | Sell | -100 | -4.8% | 1,979 | $1.18K | Q2 2026 | Aug 14, 2026 |
| Ifg Advisory, Llc | Buy | +50 | — | 50 | $30.00 | Q2 2026 | Aug 14, 2026 |
| Fmr Llc | Sell | -12,235,425 | -83.2% | 2,471,418 | $1.47M | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Sell | -2,336,062 | -60.4% | 1,531,151 | $914.10K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Sell | -490,964 | -69.0% | 220,141 | $131.38K | Q2 2026 | Aug 13, 2026 |
Frequently asked questions about ATYR activity
Which institutional owners are buying ATYR?
Institutional owners buying ATYR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATYR activity?
"Buy" means an investor increased their reported position in ATYR compared to the prior reporting period. This reflects growing exposure to ATYR PHARMA INC (ATYR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATYR increasing?
Institutional interest in ATYR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related ATYR Institutional Insights
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- Institutional Portfolio Overlap & Shared Holdings
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- ATYR Insider Trading & SEC Form 4 Activity
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