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Phathom Pharmaceuticals (PHAT) Institutional Ownership

Phathom Pharmaceuticals logo
$12.23 -0.44 (-3.47%)
Closing price 04:00 PM Eastern
Extended Trading
$12.15 -0.08 (-0.65%)
As of 06:21 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 Massive. Learn more.
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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)
101
Total
Institutional Inflows
(last 12 months)
$170.14M
Number of
Institutional Sellers
(last 12 months)
44
Total
Institutional Outflows
(last 12 months)
$96.32M
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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
5/7/2026KBC Group NV77,139$857K0.0%N/A0.097%
5/7/2026Swiss National Bank92,600$1.03M0.0%+10.2%0.116%
5/6/2026Kera Capital Partners Inc.26,826$298K0.0%+10.6%0.034%
5/5/2026 Bank of New York Mellon Corp124,018$1.38M0.0%+0.9%0.155%
4/30/2026 Summit Securities Group LLC3,048$34K0.0%N/A0.004%
4/27/2026 Simplify Asset Management Inc.262,386$2.92M0.0%-18.5%0.330%
4/27/2026 Private Advisor Group LLC10,180$113K0.0%-30.2%0.013%
4/21/2026 Wasatch Advisors LP1,340,916$14.90M0.1%+0.7%1.688%
2/23/2026Kera Capital Partners Inc.24,255$402K0.1%-19.3%0.034%
2/23/2026Virtu Financial LLC15,540$258K0.0%N/A0.022%
2/19/2026Invesco Ltd.3,920,446$65.04M0.0%+1.4%5.489%
2/18/2026XTX Topco Ltd39,400$654K0.0%-27.8%0.055%
2/18/2026VARCOV Co.86,759$1.44M0.6%N/A0.121%
2/18/2026Virtus Investment Advisers LLC46,937$779K0.2%+5.9%0.066%
2/18/2026Wellington Management Group LLP134,546$2.23M0.0%-8.1%0.188%
2/18/2026SummitTX Capital L.P.517,820$8.59M0.3%+34.2%0.725%
2/18/2026Tudor Investment Corp ET AL28,554$474K0.0%-16.2%0.040%
2/18/2026Millennium Management LLC2,082,180$34.54M0.0%-59.0%2.915%
2/18/2026Janus Henderson Group PLC21,500$357K0.0%N/A0.030%
2/18/2026Engineers Gate Manager LP44,258$734K0.0%N/A0.062%
2/18/2026Catalio Capital Management LP698,996$11.60M2.1%-38.1%0.979%
2/18/2026Balyasny Asset Management L.P.207,085$3.44M0.0%-29.8%0.290%
2/18/2026683 Capital Management LLC1,785,000$29.61M1.3%-1.9%2.499%
2/18/20269823 Capital L.P.10,429$173K0.1%N/A0.015%
2/17/2026Schonfeld Strategic Advisors LLC30,944$513K0.0%N/A0.043%
2/17/2026AQR Capital Management LLC54,448$903K0.0%+3.5%0.076%
2/17/2026Jain Global LLC21,737$361K0.0%N/A0.030%
2/17/2026Trexquant Investment LP136,824$2.27M0.0%+75.0%0.192%
2/17/2026Jump Financial LLC17,408$289K0.0%N/A0.024%
2/17/2026Price T Rowe Associates Inc. MD37,071$616K0.0%+16.1%0.052%
2/17/2026California State Teachers Retirement System40,143$666K0.0%+1,288.6%0.056%
2/17/2026State of Wisconsin Investment Board15,285$254K0.0%N/A0.021%
2/17/2026ExodusPoint Capital Management LP22,401$372K0.0%-68.6%0.031%
2/17/2026Royal Bank of Canada22,554$374K0.0%-86.1%0.032%
2/17/2026Graham Capital Management L.P.12,867$213K0.0%N/A0.018%
2/17/2026Persistent Asset Partners Ltd12,916$214K0.1%N/A0.018%
2/16/2026Next Century Growth Investors LLC393,774$6.53M0.5%N/A0.551%
2/16/2026Entropy Technologies LP11,000$182K0.0%N/A0.015%
2/16/2026Avidity Partners Management LP206,076$3.42M1.0%-32.7%0.289%
2/16/2026Barclays PLC84,859$1.41M0.0%-33.9%0.119%
2/13/2026 Kestra Advisory Services LLC2,275$38K0.0%N/A0.003%
2/13/2026The Manufacturers Life Insurance Company 12,438$206K0.0%-14.9%0.017%
2/13/2026CANADA LIFE ASSURANCE Co6,818$113K0.0%N/A0.010%
2/13/2026Stifel Financial Corp51,661$857K0.0%+160.0%0.072%
2/13/2026Southeast Asset Advisors LLC42,874$711K0.1%N/A0.060%
2/13/2026Bridgefront Capital LLC16,981$282K0.1%N/A0.024%
2/13/2026Rafferty Asset Management LLC13,855$230K0.0%N/A0.019%
2/13/2026Birchview Capital LP195,000$3.24M1.9%+129.4%0.273%
2/13/2026Charles Schwab Investment Management Inc.397,910$6.60M0.0%+8.7%0.557%
2/13/2026State Street Corp1,149,536$19.07M0.0%+9.1%1.610%
2/13/2026Caitong International Asset Management Co. Ltd1,606$27K0.1%N/A0.002%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC30,631$508K0.0%N/A0.043%
2/13/2026Wells Fargo & Company MN68,016$1.13M0.0%+26.8%0.095%
2/12/2026 Wasatch Advisors LP1,331,669$22.09M0.1%-13.4%1.865%
2/12/2026HRT Financial LP27,010$448K0.0%+19.9%0.038%
2/12/2026Tocqueville Asset Management L.P.34,700$576K0.0%+40.5%0.049%
2/12/2026Ensign Peak Advisors Inc2,352,020$39.02M0.1%-6.0%3.293%
2/12/2026New York State Common Retirement Fund41,756$693K0.0%+287.7%0.058%
2/12/2026Campbell & CO Investment Adviser LLC115,284$1.91M0.1%N/A0.161%
2/12/2026Swiss National Bank84,000$1.39M0.0%N/A0.118%
2/12/2026 Nuveen LLC108,846$1.81M0.0%-1.1%0.152%
2/11/2026Deutsche Bank AG33,380$554K0.0%+12.9%0.047%
2/11/2026GW&K Investment Management LLC1,306,678$21.68M0.2%+14.2%1.830%
2/11/2026Fox Run Management L.L.C.20,487$340K0.1%N/A0.029%
2/11/2026JPMorgan Chase & Co.296,684$4.92M0.0%+116.6%0.415%
2/11/2026Los Angeles Capital Management LLC33,425$555K0.0%N/A0.047%
2/11/2026Propel Bio Management LLC740,918$12.29M10.5%+34.0%1.037%
2/10/2026Goldman Sachs Group Inc.392,045$6.50M0.0%+157.9%0.549%
2/10/2026AXQ Capital LP10,540$175K0.0%-46.9%0.015%
2/10/2026Catalys Pacific LLC1,429,014$23.71M7.6%+22.4%2.001%
2/10/2026Intech Investment Management LLC19,051$316K0.0%-11.6%0.027%
2/9/2026Geode Capital Management LLC1,073,434$17.81M0.0%-1.4%1.503%
2/6/2026GSA Capital Partners LLP82,624$1.37M0.1%+17.6%0.116%
2/6/2026 ProShare Advisors LLC10,377$172K0.0%N/A0.015%
2/5/2026Baader Bank Aktiengesellschaft15,000$249K0.0%N/A0.021%
2/5/2026Allworth Financial LP10,450$173K0.0%-48.9%0.015%
2/2/2026Hussman Strategic Advisors Inc.147,000$2.44M0.6%N/A0.206%
1/29/2026 UBS Group AG304,383$5.05M0.0%-10.0%0.426%
1/29/2026Vanguard Group Inc.3,177,211$52.71M0.0%-1.2%4.449%
1/29/2026 China Universal Asset Management Co. Ltd.11,592$192K0.0%-6.8%0.016%
1/28/2026 Arizona State Retirement System11,867$197K0.0%N/A0.017%
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank19,890$330K0.0%N/A0.028%
1/20/2026 Stratos Wealth Partners LTD.50,300$834K0.0%N/A0.070%
1/14/2026Hennion & Walsh Asset Management Inc.114,981$1.91M0.1%N/A0.161%
1/9/2026 SG Americas Securities LLC16,497$274K0.0%N/A0.023%
1/9/2026 Inspirion Wealth Advisors LLC19,814$329K0.0%-45.9%0.028%
1/1/2026JPMorgan Chase & Co.136,948$1.61M0.0%-1.1%0.193%
1/1/2026Tudor Investment Corp ET AL34,090$401K0.0%N/A0.048%
12/9/2025Tudor Investment Corp ET AL34,090$401K0.0%N/A0.048%
11/17/2025NewEdge Advisors LLC201,523$2.23M0.0%N/A0.283%
11/17/2025Caxton Associates LLP38,570$454K0.0%N/A0.054%
11/17/2025 PharVision Advisers LLC30,968$364K0.2%N/A0.044%
11/17/2025XTX Topco Ltd54,587$642K0.0%+280.9%0.077%
11/17/2025 Wasatch Advisors LP1,537,218$18.09M0.1%+5.2%2.161%
11/17/2025Quarry LP7,007$82K0.0%+584.3%0.010%
11/17/2025Millennium Management LLC5,081,451$59.81M0.0%+125.8%7.143%
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.19,402$228K0.0%-16.9%0.027%
11/17/2025Brevan Howard Capital Management LP58,097$684K0.0%+108.7%0.082%
11/17/2025Bank of America Corp DE249,094$2.93M0.0%+159.3%0.350%
11/17/2025Alliancebernstein L.P.45,590$537K0.0%-9.9%0.064%


PHAT Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of PHAT shares?

During the previous two years, 158 institutional investors and hedge funds held shares of Phathom Pharmaceuticals. The most heavily invested institutionals were Frazier Life Sciences Management L.P. ($119.55M), Invesco Ltd. ($65.04M), Vanguard Group Inc. ($52.71M), Jennison Associates LLC ($44.16M), Ensign Peak Advisors Inc ($39.02M), Millennium Management LLC ($34.54M), and Portolan Capital Management LLC ($30.74M).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 141 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 ($4.30M), Millennium Management LLC ($2.86M), Frazier Life Sciences Management L.P. ($2.36M), Wasatch Advisors LP ($1.64M), FMR LLC ($1.30M), 683 Capital Management LLC ($1.10M), and Raymond James Financial Inc. ($925.07K).

How much institutional buying is happening at Phathom Pharmaceuticals?

Institutional investors have bought a total of 14,773,920 shares in the last 24 months. This purchase volume represents approximately $170.14M in transactions.

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

Of the 44 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: Millennium Management LLC ($3.00M), Goldman Sachs Group Inc. ($448.78K), Wasatch Advisors LP ($445.28K), Catalio Capital Management LP ($429.53K), Simplify Asset Management Inc. ($419.55K), Propel Bio Management LLC ($370K), and Invesco Ltd. ($295.68K).

How much institutional selling is happening at Phathom Pharmaceuticals?

Institutional investors have sold a total of 6,844,910 shares in the last 24 months. This volume of shares sold represents approximately $96.32M in transactions.


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This page (NASDAQ:PHAT) was last updated on 5/7/2026 by MarketBeat.com Staff.
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