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Phathom Pharmaceuticals (PHAT) Institutional Ownership

Phathom Pharmaceuticals logo
$13.46 -0.54 (-3.86%)
Closing price 10/22/2025 04:00 PM Eastern
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$13.82 +0.35 (+2.64%)
As of 08:38 AM Eastern
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Institutional Ownership Changes (13F Filings) for Phathom Pharmaceuticals (NASDAQ:PHAT)

Current
Institutional Ownership
Percentage
99.01%
Number of
Institutional Buyers
(last 12 months)
88
Total
Institutional Inflows
(last 12 months)
$228.32M
Number of
Institutional Sellers
(last 12 months)
28
Total
Institutional Outflows
(last 12 months)
$60.22M
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PHAT Institutional Buying and Selling by Quarter

Phathom Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/20/2025 Simplify Asset Management Inc.321,935$3.79M0.1%-38.3%0.454%
10/6/2025 Inspirion Wealth Advisors LLC36,634$431K0.1%+84.9%0.052%
9/29/2025 Summit Financial Wealth Advisors LLC22,143$212K0.0%-28.9%0.031%
8/15/2025Tower Research Capital LLC TRC 5,710$55K0.0%+58.3%0.008%
8/15/2025Wasatch Advisors LP1,461,895$14.02M0.1%-14.1%2.061%
8/15/2025Moore Capital Management LP600,000$5.75M0.1%N/A0.846%
8/15/2025Frazier Life Sciences Management L.P.12,466,489$119.55M4.8%+23.3%17.573%
8/15/2025Gilder Gagnon Howe & Co. LLC31,358$301K0.0%-24.6%0.044%
8/15/2025BNP Paribas Financial Markets5,072$49K0.0%+71.9%0.007%
8/15/2025Brevan Howard Capital Management LP27,834$267K0.0%N/A0.039%
8/15/2025Birchview Capital LP25,000$240K0.2%N/A0.035%
8/15/2025Bank of America Corp DE96,080$921K0.0%-43.6%0.135%
8/15/2025683 Capital Management LLC2,105,000$20.19M1.3%+45.7%2.967%
8/15/2025Ameriprise Financial Inc.180,851$1.73M0.0%N/A0.255%
8/14/2025California State Teachers Retirement System2,889$28K0.0%-91.8%0.004%
8/14/2025Raymond James Financial Inc.3,174$30K0.0%N/A0.004%
8/14/2025The Manufacturers Life Insurance Company 15,826$152K0.0%+9.4%0.022%
8/14/2025Nebula Research & Development LLC37,937$364K0.0%+31.6%0.053%
8/14/2025Diadema Partners LP40,294$386K0.1%N/A0.057%
8/13/2025Invesco Ltd.4,140,072$39.70M0.0%+13.4%5.836%
8/13/2025Russell Investments Group Ltd.2,736$26K0.0%-93.5%0.004%
8/12/2025XTX Topco Ltd14,330$137K0.0%-84.1%0.020%
8/12/2025Ameritas Investment Partners Inc.4,311$41K0.0%+39.3%0.006%
8/12/2025Rhumbline Advisers64,557$619K0.0%+13.8%0.091%
8/12/2025Legal & General Group Plc4,087$39K0.0%-88.8%0.006%
8/12/2025JPMorgan Chase & Co.138,516$1.33M0.0%+0.8%0.195%
8/12/2025Entropy Technologies LP11,600$111K0.0%N/A0.016%
8/12/2025Ensign Peak Advisors Inc2,519,972$24.17M0.0%+0.2%3.552%
8/11/2025Persistent Asset Partners Ltd9,421$90K0.1%N/A0.013%
8/8/2025Intech Investment Management LLC28,192$270K0.0%+31.2%0.040%
8/8/2025Creative Planning57,264$549K0.0%-4.5%0.082%
8/8/2025Geode Capital Management LLC1,069,927$10.26M0.0%+5.3%1.533%
8/7/2025 Simplify Asset Management Inc.521,935$5.01M0.3%-23.5%0.748%
8/6/2025Savant Capital LLC11,771$113K0.0%N/A0.017%
7/31/2025AlphaQuest LLC32,206$309K0.0%+2,127.2%0.046%
6/27/2025Goldman Sachs Group Inc.187,874$1.18M0.0%-54.4%0.269%
5/16/2025Woodline Partners LP751,692$4.71M0.0%-25.0%1.077%
5/16/2025Goldman Sachs Group Inc.187,874$1.18M0.0%-54.4%0.269%
5/16/2025Jacobs Levy Equity Management Inc.596,108$3.74M0.0%N/A0.854%
5/16/2025AQR Capital Management LLC107,399$673K0.0%+508.2%0.154%
5/16/2025683 Capital Management LLC1,445,000$9.06M0.6%+41.0%2.070%
5/15/2025Propel Bio Management LLC1,134,927$7.12M8.3%+14.6%1.626%
5/15/2025Trexquant Investment LP398,751$2.50M0.0%+5.3%0.571%
5/14/2025Wellington Management Group LLP200,690$1.26M0.0%+47.6%0.287%
5/13/2025Russell Investments Group Ltd.41,799$262K0.0%N/A0.060%
5/12/2025Nuveen LLC101,520$637K0.0%N/A0.145%
5/12/2025Invesco Ltd.3,650,812$22.89M0.0%-0.6%5.229%
5/9/2025Charles Schwab Investment Management Inc.348,035$2.18M0.0%-1.4%0.499%
5/8/2025US Bancorp DE23,763$149K0.0%+248.1%0.034%
5/8/2025XTX Topco Ltd90,191$565K0.0%N/A0.129%
5/7/2025Corton Capital Inc.18,384$115K0.4%N/A0.026%
5/5/2025Jennison Associates LLC7,042,325$44.16M0.0%-0.3%10.111%
5/1/2025CWM LLC7,384$46K0.0%+20,997.1%0.011%
4/29/2025Bank of New York Mellon Corp114,535$718K0.0%+11.5%0.164%
4/7/2025GAMMA Investing LLC4,558$29K0.0%+797.2%0.007%
4/2/2025Kera Capital Partners Inc.29,849$187K0.1%+11.2%0.043%
3/24/2025Wellington Management Group LLP135,995$1.10M0.0%-21.6%0.195%
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC117,803$957K0.0%+20.2%0.172%
2/17/2025Woodline Partners LP1,001,692$8.13M0.1%-61.1%1.465%
2/17/2025Two Sigma Advisers LP133,700$1.09M0.0%N/A0.196%
2/17/2025Two Sigma Investments LP485,790$3.95M0.0%+215.4%0.710%
2/17/2025Tang Capital Management LLC500,000$4.06M0.3%N/A0.731%
2/17/2025Rafferty Asset Management LLC11,113$90K0.0%N/A0.016%
2/17/2025ProShare Advisors LLC14,289$116K0.0%+36.3%0.021%
2/17/2025Nuveen Asset Management LLC147,523$1.20M0.0%-4.4%0.216%
2/17/2025Numerai GP LLC15,264$124K0.0%-69.1%0.022%
2/17/2025Millennium Management LLC59,991$487K0.0%+82.2%0.088%
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.22,149$180K0.0%+18.2%0.032%
2/17/2025Ensign Peak Advisors Inc2,527,054$20.52M0.0%-2.1%3.696%
2/17/2025Deutsche Bank AG30,213$245K0.0%+49.4%0.044%
2/17/2025Cubist Systematic Strategies LLC282,553$2.29M0.0%N/A0.413%
2/17/2025Catalys Pacific LLC1,167,114$9.48M8.2%+4.0%1.707%
2/17/2025Brevan Howard Capital Management LP22,845$186K0.0%N/A0.033%
2/17/2025Avidity Partners Management LP1,390,100$11.29M1.1%-23.0%2.033%
2/17/2025Bayesian Capital Management LP14,900$121K0.0%N/A0.022%
2/17/2025Bank of America Corp DE166,505$1.35M0.0%+60.4%0.243%
2/17/2025BNP Paribas Financial Markets39,532$321K0.0%N/A0.058%
2/17/2025683 Capital Management LLC1,025,000$8.32M0.5%+1.5%1.499%
2/14/2025Oracle Investment Management Inc.145,064$1.18M0.6%-84.6%0.212%
2/14/2025Northern Trust Corp397,964$3.23M0.0%+24.1%0.582%
2/14/2025Tudor Investment Corp ET AL34,049$276K0.0%-6.4%0.050%
2/14/2025Decheng Capital LLC694,254$5.64M1.2%-44.5%1.015%
2/14/2025Propel Bio Management LLC989,927$8.04M8.0%+13.8%1.448%
2/14/2025Virtus ETF Advisers LLC43,789$356K0.1%+45.6%0.064%
2/14/2025Gilder Gagnon Howe & Co. LLC41,610$338K0.0%-97.4%0.061%
2/14/2025Nebula Research & Development LLC20,963$170K0.0%N/A0.031%
2/14/2025Price T Rowe Associates Inc. MD25,641$209K0.0%+21.8%0.037%
2/14/2025Dark Forest Capital Management LP32,029$260K0.0%N/A0.047%
2/14/2025MetLife Investment Management LLC24,366$198K0.0%+28.0%0.036%
2/13/2025Canada Pension Plan Investment Board15,400$125K0.0%N/A0.023%
2/13/2025Marshall Wace LLP98,068$796K0.0%N/A0.143%
2/13/2025Wasatch Advisors LP1,558,928$12.66M0.1%+531.3%2.280%
2/13/2025Barclays PLC76,463$621K0.0%+32.3%0.112%
2/13/2025Summit Financial Wealth Advisors LLC68,125$553K0.1%+134.7%0.100%
2/13/2025Raymond James Financial Inc.455,837$3.70M0.0%N/A0.667%
2/13/2025Capula Management Ltd16,083$131K0.0%N/A0.024%
2/13/2025Invesco Ltd.3,671,386$29.81M0.0%-10.4%5.369%
2/13/2025Aristides Capital LLC25,200$205K0.0%N/A0.037%
2/13/2025Wells Fargo & Company MN25,516$207K0.0%+41.3%0.037%
2/12/2025Trexquant Investment LP378,637$3.08M0.0%N/A0.554%
(Data available from 1/1/2016 forward)

PHAT Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of PHAT shares?

During the previous two years, 126 institutional investors and hedge funds held shares of Phathom Pharmaceuticals. The most heavily invested institutionals were Frazier Life Sciences Management L.P. ($119.55M), Medicxi Ventures Management Jersey Ltd ($79.27M), Jennison Associates LLC ($44.16M), Invesco Ltd. ($39.70M), Portolan Capital Management LLC ($30.74M), Checkpoint Capital L.P. ($27.20M), and Ensign Peak Advisors Inc ($24.17M).Learn more on Phathom Pharmaceuticals' institutional investors.

What percentage of Phathom Pharmaceuticals' stock is owned by institutional investors?

99.01% of Phathom Pharmaceuticals' stock is owned by institutional investors. Learn more on PHAT's institutional investor holdings.

Which institutional investors have been buying Phathom Pharmaceuticals' stock?

Of the 110 institutional investors that purchased Phathom Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Jennison Associates LLC ($5.95M), Medicxi Ventures Management Jersey Ltd ($3.70M), Frazier Life Sciences Management L.P. ($2.36M), Wasatch Advisors LP ($1.56M), FMR LLC ($1.30M), 683 Capital Management LLC ($1.10M), and Raymond James Financial Inc. ($914.85K).

How much institutional buying is happening at Phathom Pharmaceuticals?

Institutional investors have bought a total of 19,341,252 shares in the last 24 months. This purchase volume represents approximately $228.32M in transactions.

Which of Phathom Pharmaceuticals' major shareholders have been selling company stock?

Of the 28 institutional investors that sold Phathom Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Woodline Partners LP ($1.82M), Gilder Gagnon Howe & Co. LLC ($1.59M), Oracle Investment Management Inc. ($797.12K), Decheng Capital LLC ($555.75K), Goldman Sachs Group Inc. ($448.78K), Invesco Ltd. ($445.95K), and Avidity Partners Management LP ($414.39K).

How much institutional selling is happening at Phathom Pharmaceuticals?

Institutional investors have sold a total of 7,256,909 shares in the last 24 months. This volume of shares sold represents approximately $60.22M in transactions.


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This page (NASDAQ:PHAT) was last updated on 10/23/2025 by MarketBeat.com Staff
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