Atyr PharmaATYR

13F holders, Q1 2025 (March 31)
87holders +10
25new positions
16sold out
4famous investors
$3.02avg. 13F price*

At the end of Q1 2025, 87 institutions reported holding Atyr Pharma Inc. (ATYR) in their 13F filings, up 10 from Q4 2024. 25 opened new positions and 16 sold out. The largest holders were Federated Hermes, Inc. ($44.3M), FMR LLC ($38.9M) and Vanguard Group Inc. ($12.1M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Atyr Pharma Inc.
CUSIP
002120202
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150 Q1 2024: 56Q1 2024Q2 2024: 47Q2 2024Q3 2024: 56Q3 2024Q4 2024: 77Q4 2024Q1 2025: 87Q1 2025Q2 2025: 110Q2 2025Q3 2025: 103Q3 2025Q4 2025: 84Q4 2025Q1 2026: 111Q1 2026Q2 2026: 89Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions25$8.1M
Exits16$11.5M

All 13F filers, Q4 2024 → Q1 2025: 13,017,397 shares bought and 6,124,570 shares sold, net +6,892,827 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 87 holders

Federated Hermes, Inc. 0.10% No change 14,666,600 $44.3M
FMR LLC 0.00% Add +6.6% 12,893,529 $38.9M
Vanguard Group Inc. 0.00% Add +11.2% 4,006,735 $12.1M
Octagon Capital Advisors LP 2.33% Add +294.7% 3,552,000 $10.7M
Point72 Asset Management 0.03% Reduce -41.8% 2,844,099 $8.6M
Tikvah Management LLC 2.58% No change 2,460,833 $7.4M
Susquehanna International Group, LLP 0.01% Add +120.0% 1,733,081 $5.2M
Woodline Partners LP 0.03% Reduce -0.1% 1,681,595 $5.1M
UBS Group AG 0.00% Add +613.1% 1,637,186 $4.9M
Millennium Management 0.00% Add +334.5% 1,599,041 $4.8M
BlackRock, Inc. 0.00% Add +4.5% 1,593,981 $4.8M
Alyeska Investment Group, L.P. 0.02% Reduce -0.0% 1,277,897 $3.9M
Geode Capital Management, LLC 0.00% Add +4.1% 927,800 $2.8M
Marshall Wace, LLP 0.00% New 838,452 $2.5M
Ally Bridge Group (NY) LLC 2.12% Add +11.1% 777,020 $2.3M
Integral Health Asset Management, LLC 0.23% Add +86.7% 700,000 $2.1M
Tang Capital Management LLC 0.11% No change 671,134 $2.0M
MAI Capital Management 0.02% Add +306100.0% 658,330 $2.0M
Erste Asset Management GmbH 0.02% New 600,000 $1.8M
Renaissance Technologies 0.00% Reduce -16.4% 479,955 $1.4M
Qube Research & Technologies Ltd 0.00% Reduce -3.6% 414,592 $1.3M
Goldman Sachs Group Inc. 0.00% Add +46.0% 382,317 $1.2M
State Street Corp. 0.00% Add +22.2% 367,310 $1.1M
Gsa Capital Partners LLP 0.09% Add +21.1% 332,324 $1.0M
Bank of America Corp. 0.00% Add +216.1% 288,311 $871K
Morgan Stanley 0.00% Add +537.4% 262,679 $793K
Citadel Advisors 0.00% Add +2011.5% 261,007 $788K
Barclays PLC 0.00% Add +48.7% 237,091 $716K
Squarepoint Ops LLC 0.00% Add +783.9% 235,242 $710K
Dimensional Fund Advisors LP 0.00% Reduce -6.3% 228,094 $689K
Balyasny Asset Management L.P. 0.00% Add +412.6% 227,142 $686K
Knott David M Jr 0.32% Reduce -27.5% 223,407 $675K
Northern Trust Corp. 0.00% Add +2.2% 186,617 $564K
HRT Financial LP 0.00% New 182,135 $550K
Jane Street Group, LLC 0.00% Reduce -12.3% 174,507 $527K
Dauntless Investment Group, LLC 1.90% New 170,689 $515K
Wellington Management Group LLP 0.00% New 168,742 $510K
Wells Fargo & Company 0.00% Add +59.0% 168,219 $508K
OMERS ADMINISTRATION Corp 0.00% Add +7.3% 148,100 $447K
Main Street Financial Solutions, LLC 0.04% New 134,250 $405K
Schonfeld Strategic Advisors LLC 0.00% Add +61.4% 102,706 $310K
Simplex Trading, LLC 0.01% Add +635.9% 96,852 $292K
Group One Trading LLC 0.01% Add +1138.5% 89,671 $271K
Jain Global LLC 0.01% New 88,143 $266K
Quantessence Capital LLC 0.05% New 61,621 $186K
Jefferies Financial Group Inc. 0.00% No change 55,600 $168K
Brevan Howard Capital Management LP 0.00% New 53,209 $161K
LMR Partners LLP 0.00% New 52,087 $157K
Alliancebernstein L.P. 0.00% New 51,917 $157K
ExodusPoint Capital Management, LP 0.00% Add +187.3% 48,227 $146K
Cannon Global Investment Management, LLC 0.40% New 47,500 $143K
Wolverine Trading, LLC 0.00% Add +140.4% 45,327 $142K
Verition Fund Management LLC 0.00% New 45,451 $137K
D.A. Davidson & Co. 0.00% Add +3.1% 40,200 $121K
Charles Schwab Investment Management Inc. 0.00% Add +0.6% 39,911 $121K
Kingswood Wealth Advisors, LLC 0.01% Reduce -21.3% 37,000 $110K
J. Goldman & Co LP 0.00% Reduce -90.0% 30,131 $91K
Tower Research Capital LLC (TRC) 0.00% Reduce -16.2% 27,544 $83K
Royal Bank of Canada 0.00% Reduce -89.7% 24,705 $75K
Apollon Wealth Management, LLC 0.00% New 23,500 $71K
Farther Finance Advisors, LLC 0.00% No change 24,423 $70K
American Century Companies Inc. 0.00% Reduce -74.2% 22,703 $69K
Two Sigma Investments, LP 0.00% Add +2.8% 22,239 $67K
Twinbeech Capital LP 0.00% New 21,434 $65K
Prelude Capital Management, LLC 0.01% Add +111.5% 21,318 $64K
Capula Management Ltd 0.00% New 21,126 $64K
XTX Topco Ltd 0.00% Add +74.9% 19,556 $59K
Engineers Gate Manager LP 0.00% New 19,288 $58K
Capstone Investment Advisors, LLC 0.00% New 18,420 $56K
Catalyst Funds Management Pty Ltd 0.01% New 17,953 $54K
Boothbay Fund Management, LLC 0.00% No change 14,568 $44K
Raymond James Financial Inc. 0.00% Add +29.5% 13,850 $42K
United Bank 0.01% New 13,830 $42K
Hudson Bay Capital Management LP 0.00% New 13,320 $40K
Y-Intercept (Hong Kong) Ltd 0.00% New 12,583 $38K
Two Sigma Securities, LLC 0.01% New 11,935 $36K
Alterna Wealth Management, Inc. 0.02% No change 10,000 $30K
Leonteq Securities AG 0.00% New 2,500 $8K
Caitong International Asset Management Co., Ltd 0.00% New 1,396 $4K
Point72 Asia (Singapore) Pte. Ltd. 0.00% Add +1.7% 1,255 $4K
Sachetta, LLC 0.00% Add +107.5% 830 $3K
Lanark Financial, Inc. 0.00% — 700 $2K
PFS Partners, LLC 0.00% No change 340 $1K
Continuum Advisory, LLC 0.00% No change 210 $634
Caldwell Sutter Capital, Inc. 0.00% No change 52 $157
Strategic Investment Solutions, Inc. 0.00% No change 8 $24
Citigroup Inc. 0.00% Reduce -100.0% 1 $3

"% of holder's portfolio" is ATYR's weight in each manager's 13F, not the share of Atyr Pharma Inc. the manager owns.