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aTyr Pharma (ATYR) Institutional Ownership

aTyr Pharma logo
$4.90 -0.09 (-1.80%)
Closing price 08/15/2025 04:00 PM Eastern
Extended Trading
$4.93 +0.03 (+0.71%)
As of 08/15/2025 07:52 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for aTyr Pharma (NASDAQ:ATYR)

Current
Institutional Ownership
Percentage
61.72%
Number of
Institutional Buyers
(last 12 months)
77
Total
Institutional Inflows
(last 12 months)
$154.97M
Number of
Institutional Sellers
(last 12 months)
12
Total
Institutional Outflows
(last 12 months)
$6.53M
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ATYR Institutional Buying and Selling by Quarter

aTyr Pharma Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/15/2025Tower Research Capital LLC TRC 10,341$52K0.0%-62.5%0.011%
8/15/2025 Oxford Asset Management LLP13,734$70K0.0%N/A0.014%
8/15/2025 Octagon Capital Advisors LP3,820,000$19.37M4.3%+7.5%3.898%
8/15/2025 BNP Paribas Financial Markets19,550$99K0.0%N/A0.020%
8/15/2025 Bank of America Corp DE42,346$215K0.0%-85.3%0.043%
8/14/2025 California State Teachers Retirement System5,428$28K0.0%N/A0.006%
8/14/2025 Raymond James Financial Inc.24,839$126K0.0%+79.3%0.025%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.47,643$242K0.0%N/A0.049%
8/14/2025 Main Street Financial Solutions LLC143,600$728K0.1%+7.0%0.147%
8/14/2025 The Manufacturers Life Insurance Company 32,477$165K0.0%N/A0.033%
8/13/2025 Diametric Capital LP37,012$188K0.1%N/A0.038%
8/13/2025 Marshall Wace LLP511,412$2.59M0.0%-39.0%0.522%
8/13/2025 Kennedy Capital Management LLC21,514$109K0.0%N/A0.022%
8/13/2025 Invesco Ltd.598,008$3.03M0.0%N/A0.610%
8/13/2025 OMERS ADMINISTRATION Corp31,800$161K0.0%-78.5%0.032%
8/13/2025 New York State Common Retirement Fund27,500$139K0.0%N/A0.028%
8/13/2025 Quadrature Capital Ltd56,022$283K0.0%N/A0.057%
8/12/2025 North Star Asset Management Inc.16,800$85K0.0%N/A0.017%
8/12/2025 Ameritas Investment Partners Inc.8,881$45K0.0%N/A0.009%
8/12/2025 Prudential Financial Inc.12,390$63K0.0%N/A0.013%
8/12/2025 Rhumbline Advisers124,158$629K0.0%N/A0.127%
8/12/2025 Legal & General Group Plc9,570$49K0.0%N/A0.010%
8/12/2025 MAI Capital Management369,127$1.87M0.0%-43.9%0.377%
8/12/2025 JPMorgan Chase & Co.41,107$208K0.0%N/A0.042%
8/12/2025 Catalyst Funds Management Pty Ltd10,700$54K0.0%-40.4%0.011%
8/12/2025 Ensign Peak Advisors Inc235,675$1.20M0.0%N/A0.241%
8/11/2025 Knott David M Jr50,367$255K0.1%-77.5%0.057%
8/8/2025 Intech Investment Management LLC44,668$226K0.0%N/A0.050%
8/8/2025 Thoroughbred Financial Services LLC210,775$1.07M0.1%N/A0.237%
8/8/2025 Creative Planning14,509$74K0.0%N/A0.016%
8/8/2025 Police & Firemen s Retirement System of New Jersey19,856$101K0.0%N/A0.022%
8/8/2025 Geode Capital Management LLC2,098,076$10.64M0.0%+126.1%2.357%
8/7/2025 ProShare Advisors LLC17,837$90K0.0%N/A0.020%
7/30/2025 D.A. Davidson & CO.31,650$160K0.0%-21.3%0.036%
7/25/2025 Apollon Wealth Management LLC20,500$104K0.0%-12.8%0.023%
7/11/2025 Farther Finance Advisors LLC19,923$101K0.0%-18.4%0.022%
6/27/2025 Goldman Sachs Group Inc.382,317$1.16M0.0%+46.0%0.430%
5/16/2025 Octagon Capital Advisors LP3,552,000$10.73M1.1%+294.7%3.991%
5/16/2025 Goldman Sachs Group Inc.382,317$1.16M0.0%+46.0%0.430%
5/16/2025 Millennium Management LLC1,599,041$4.83M0.0%+334.5%1.797%
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5/16/2025 Ally Bridge Group NY LLC777,020$2.35M2.1%+11.0%0.873%
5/15/2025 MAI Capital Management658,330$1.99M0.0%+306,100.0%0.740%
5/15/2025 OMERS ADMINISTRATION Corp148,100$447K0.0%+7.3%0.166%
5/14/2025 Erste Asset Management GmbH600,000$1.81M0.0%N/A0.674%
5/14/2025 Wellington Management Group LLP168,742$510K0.0%N/A0.190%
5/13/2025 American Century Companies Inc.22,703$69K0.0%-74.2%0.026%
5/12/2025 Knott David M Jr223,407$675K0.3%-27.5%0.251%
5/8/2025 XTX Topco Ltd19,556$59K0.0%+74.9%0.022%
5/8/2025 GSA Capital Partners LLP332,324$1.00M0.1%+21.1%0.374%
5/7/2025 Dauntless Investment Group LLC170,689$515K0.6%N/A0.192%
5/6/2025 Y Intercept Hong Kong Ltd12,583$38K0.0%N/A0.014%
5/2/2025 Apollon Wealth Management LLC23,500$71K0.0%N/A0.026%
4/28/2025 Cannon Global Investment Management LLC47,500$143K0.3%N/A0.053%
4/21/2025 Kingswood Wealth Advisors LLC37,000$110K0.0%-21.3%0.042%
2/27/2025Jefferies Financial Group Inc.55,600$201K0.0%N/A0.066%
2/18/2025 Alpine Global Management LLC17,429$63K0.0%N/A0.021%
2/17/2025 Woodline Partners LP1,683,000$6.09M0.0%N/A2.005%
2/17/2025 Squarepoint Ops LLC26,614$96K0.0%N/A0.032%
2/17/2025 Two Sigma Advisers LP12,250$44K0.0%N/A0.015%
2/17/2025 Two Sigma Investments LP21,628$78K0.0%N/A0.026%
2/17/2025 Tang Capital Management LLC671,134$2.43M0.2%N/A0.800%
2/17/2025 Stempoint Capital LP200,475$726K0.2%N/A0.239%
2/17/2025 Point72 Asset Management L.P.4,883,197$17.68M0.0%N/A5.817%
2/17/2025 Man Group plc15,248$55K0.0%N/A0.018%
2/17/2025 OMERS ADMINISTRATION Corp138,000$500K0.0%N/A0.164%
2/17/2025 Octagon Capital Advisors LP900,000$3.26M0.5%N/A1.072%
2/17/2025 Millennium Management LLC367,989$1.33M0.0%N/A0.438%
2/17/2025 Integral Health Asset Management LLC375,000$1.36M0.1%N/A0.447%
2/17/2025 J. Goldman & Co LP300,131$1.09M0.0%N/A0.358%
2/17/2025Jefferies Financial Group Inc.55,600$201K0.0%N/A0.066%
2/17/2025 Group One Trading LLC7,240$26K0.0%N/A0.009%
2/17/2025 Balyasny Asset Management L.P.44,310$160K0.0%N/A0.053%
2/17/2025 Bank of America Corp DE91,224$330K0.0%N/A0.109%
2/17/2025 Alyeska Investment Group L.P.1,278,441$4.63M0.0%N/A1.523%
2/17/2025 Ally Bridge Group NY LLC699,730$2.53M2.1%N/A0.834%
2/17/2025 683 Capital Management LLC248,000$898K0.1%N/A0.295%
2/14/2025 Jane Street Group LLC199,006$720K0.0%N/A0.237%
2/14/2025 Schonfeld Strategic Advisors LLC63,635$230K0.0%N/A0.076%
2/14/2025 Northern Trust Corp182,625$661K0.0%N/A0.218%
2/14/2025 Oxford Asset Management LLP31,784$115K0.1%N/A0.038%
2/14/2025 Boothbay Fund Management LLC14,568$53K0.0%N/A0.017%
2/14/2025 Adage Capital Partners GP L.L.C.1,000,000$3.62M0.0%N/A1.191%
2/14/2025 Alpine Global Management LLC17,429$63K0.0%N/A0.021%
2/14/2025Tower Research Capital LLC TRC32,856$119K0.0%N/A0.039%
2/14/2025 Dimensional Fund Advisors LP243,369$881K0.0%N/A0.290%
2/13/2025 XTX Topco Ltd11,182$40K0.0%N/A0.013%
2/13/2025 Barclays PLC159,407$577K0.0%N/A0.190%
2/13/2025 Raymond James Financial Inc.10,694$39K0.0%N/A0.013%
2/13/2025 Renaissance Technologies LLC574,455$2.08M0.0%N/A0.684%
2/13/2025 Federated Hermes Inc.14,666,600$53.09M0.1%N/A17.473%
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2/13/2025 Tikvah Management LLC2,460,833$8.91M2.5%N/A2.932%
2/13/2025 Wells Fargo & Company MN105,769$383K0.0%N/A0.126%
2/12/2025 ExodusPoint Capital Management LP16,786$61K0.0%N/A0.020%
2/12/2025 Knott David M Jr308,133$1.12M0.4%N/A0.367%
2/12/2025 Geode Capital Management LLC891,407$3.23M0.0%N/A1.062%
2/12/2025 Diametric Capital LP29,812$108K0.1%N/A0.036%
2/12/2025 JPMorgan Chase & Co.178,532$646K0.0%+467.8%0.213%
2/11/2025 American Century Companies Inc.88,112$319K0.0%N/A0.105%
2/10/2025 Farther Finance Advisors LLC24,423$88K0.0%N/A0.029%
2/6/2025 Raymond James Financial Inc.10,694$39K0.0%N/A0.013%
(Data available from 1/1/2016 forward)

ATYR Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ATYR shares?

During the previous two years, 79 institutional investors and hedge funds held shares of aTyr Pharma. The most heavily invested institutionals were Federated Hermes Inc. ($53.09M), Octagon Capital Advisors LP ($19.37M), Point72 Asset Management L.P. ($17.68M), Geode Capital Management LLC ($10.64M), Tikvah Management LLC ($8.91M), Woodline Partners LP ($6.09M), and Millennium Management LLC ($4.83M).Learn more on aTyr Pharma's institutional investors.

What percentage of aTyr Pharma's stock is owned by institutional investors?

61.72% of aTyr Pharma's stock is owned by institutional investors. Learn more on ATYR's institutional investor holdings.

Which institutional investors have been buying aTyr Pharma's stock?

Of the 77 institutional investors that purchased aTyr Pharma's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Federated Hermes Inc. ($14.67M), Point72 Asset Management L.P. ($4.88M), Octagon Capital Advisors LP ($3.82M), Tikvah Management LLC ($2.46M), Geode Capital Management LLC ($2.06M), Woodline Partners LP ($1.68M), and Millennium Management LLC ($1.60M).

How much institutional buying is happening at aTyr Pharma?

Institutional investors have bought a total of 42,572,056 shares in the last 24 months. This purchase volume represents approximately $154.97M in transactions.

Which of aTyr Pharma's major shareholders have been selling company stock?

Of the 12 institutional investors that sold aTyr Pharma's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Marshall Wace LLP ($327.04K), MAI Capital Management ($289.20K), Knott David M Jr ($257.77K), Bank of America Corp DE ($245.97K), OMERS ADMINISTRATION Corp ($116.30K), American Century Companies Inc. ($65.41K), and Tower Research Capital LLC TRC ($17.20K).

How much institutional selling is happening at aTyr Pharma?

Institutional investors have sold a total of 1,352,189 shares in the last 24 months. This volume of shares sold represents approximately $6.53M in transactions.


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This page (NASDAQ:ATYR) was last updated on 8/16/2025 by MarketBeat.com Staff
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