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PHAT Insider Trading

Insider Ownership Percentage: 9.33%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $12,652.73

Phathom Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at Phathom Pharmaceuticals by year and by quarter.

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Phathom Pharmaceuticals Share Price & Price History

Current Price: $8.66
Price Change: ▼ Price Decrease of -0.21 (-2.37%)
As of 08/24/2026 04:00 PM ET

This chart shows the closing price history over time for PHAT up to the past year.

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Days: 30 | 90 | 365

Phathom Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/3/2025Robert Charles BreedloveInsiderSell524$13.51$7,079.2447,407View SEC Filing Icon  
9/5/2025Robert Charles BreedloveInsiderSell461$12.09$5,573.4947,931View SEC Filing Icon  
7/16/2025Robert Charles BreedloveInsiderSell1,692$8.36$14,145.1248,392View SEC Filing Icon  
5/21/2025James N TopperDirectorBuy3,780$3.86$14,590.8059,403View SEC Filing Icon  
5/6/2025Asit ParikhDirectorBuy5,000$2.60$13,000.0090,500View SEC Filing Icon  
4/7/2025Molly HendersonCFOSell3,678$4.55$16,734.9089,868View SEC Filing Icon  
1/21/2025Azmi NabulsiCOOSell7,886$6.59$51,968.74233,390View SEC Filing Icon  
1/21/2025Molly HendersonCFOSell6,583$6.59$43,381.9793,546View SEC Filing Icon  
1/21/2025Terrie CurranInsiderSell19,109$6.59$125,928.31360,465View SEC Filing Icon  
12/19/2024Azmi NabulsiCOOSell1,118$8.00$8,944.00239,303View SEC Filing Icon  
12/19/2024Molly HendersonCFOSell1,291$8.00$10,328.0098,156View SEC Filing Icon  
12/13/2024Frank KarbeDirectorBuy12,500$7.93$99,125.0057,000View SEC Filing Icon  
7/15/2024Azmi NabulsiCOOSell10,901$11.72$127,759.72240,421View SEC Filing Icon  
7/15/2024Molly HendersonCFOSell4,325$11.72$50,689.0099,447View SEC Filing Icon  
7/15/2024Terrie CurranInsiderSell33,848$11.72$396,698.56377,734View SEC Filing Icon  
4/8/2024Molly HendersonCFOSell3,435$11.10$38,128.5095,263View SEC Filing Icon  
3/22/2024Terrie CurranInsiderSell16,851$9.11$153,512.61410,784View SEC Filing Icon  
1/24/2024Pharmaceutical Co Ltd TakedaMajor ShareholderSell3,703,703$8.10$29,999,994.303,755,583View SEC Filing Icon  
1/19/2024Molly HendersonCFOSell6,307$7.75$48,879.2598,698View SEC Filing Icon  
11/8/2023Asit ParikhDirectorBuy2,500$7.80$19,500.0055,000View SEC Filing Icon  
11/6/2023Asit ParikhDirectorBuy1,000$8.04$8,040.0048,500View SEC Filing Icon  
11/1/2023Molly HendersonCFOSell12,492$8.88$110,928.96105,188View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Phathom Pharmaceuticals (NASDAQ:PHAT)

99.01% of Phathom Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PHAT by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Phathom Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/24/2026California State Teachers Retirement System561,889$6.10M0.0%+1,297.0%0.695%Search for SEC Filing on Google Icon
8/21/2026Pale Fire Capital SE49,713$0.54M0.0%N/A0.061%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC709,695$7.70M0.0%N/A0.877%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP132,284$1.44M0.0%+18.4%0.164%Search for SEC Filing on Google Icon
8/18/2026Stonepine Capital Management LLC85,010$922.36M0.5%N/A0.105%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE151,015$1.64M0.0%N/A0.187%Search for SEC Filing on Google Icon
8/15/2026Man Group plc48,679$0.53M0.0%N/A0.060%Search for SEC Filing on Google Icon
8/15/2026Jupiter Topco LLC21,500$0.23M0.0%N/A0.027%Search for SEC Filing on Google Icon
8/14/2026ADAR1 Capital Management LLC42,900$0.47M0.0%N/A0.053%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC709,695$7.70M0.0%N/A0.877%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc32,738$0.36M0.0%N/A0.040%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company 13,631$0.15M0.0%N/A0.017%Search for SEC Filing on Google Icon
8/12/2026Quantbot Technologies LP42,755$0.46M0.0%N/A0.053%Search for SEC Filing on Google Icon
8/11/2026Allworth Financial LP10,443$0.11M0.0%N/A0.013%Search for SEC Filing on Google Icon
8/10/2026Tocqueville Asset Management L.P.12,000$0.13M0.0%N/A0.015%Search for SEC Filing on Google Icon
8/8/2026Carlyle Group Inc.3,496,808$37.94M0.4%N/A4.322%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.4,525,129$49.10M0.0%N/A5.593%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG50,205$0.55M0.0%N/A0.062%Search for SEC Filing on Google Icon
8/7/2026Persistent Asset Partners Ltd47,663$0.52M0.2%N/A0.059%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp152,313$1.65M0.0%N/A0.188%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming17,639$0.19M0.0%N/A0.022%Search for SEC Filing on Google Icon
8/6/2026GSA Capital Partners LLP30,138$0.33M0.0%N/A0.037%Search for SEC Filing on Google Icon
7/10/2026Wasatch Advisors LP1,307,247$14.18M0.1%-2.5%1.639%Search for SEC Filing on Google Icon
7/9/2026Hennion & Walsh Asset Management Inc.327,278$3.55M0.1%+124.3%0.410%Search for SEC Filing on Google Icon
6/3/2026NewEdge Advisors LLC183,000$2.03M0.0%-8.9%0.229%Search for SEC Filing on Google Icon
5/29/2026Perceptive Advisors LLC925,000$10.28M0.2%N/A1.160%Search for SEC Filing on Google Icon
5/28/2026Avidity Partners Management LP249,390$2.77M0.6%+21.0%0.313%Search for SEC Filing on Google Icon
5/19/2026NewEdge Advisors LLC183,000$2.03M0.0%-8.9%0.229%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE208,115$2.31M0.0%-19.6%0.261%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada5,766$64K0.0%-74.4%0.007%Search for SEC Filing on Google Icon
5/18/2026EcoR1 Capital LLC625,000$6.94M0.3%N/A0.784%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP11,536$0.13M0.0%N/A0.014%Search for SEC Filing on Google Icon
5/16/2026SummitTX Capital L.P.995,885$11.06M0.3%+92.3%1.249%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC14,671$0.16M0.0%N/A0.018%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC305,800$3.40M0.0%N/A0.383%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming4,936$55K0.0%N/A0.006%Search for SEC Filing on Google Icon
5/7/2026KBC Group NV77,139$0.86M0.0%N/A0.097%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank92,600$1.03M0.0%+10.2%0.116%Search for SEC Filing on Google Icon
5/6/2026Kera Capital Partners Inc.26,826$0.30M0.0%+10.6%0.034%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp124,018$1.38M0.0%+0.9%0.155%Search for SEC Filing on Google Icon
4/30/2026Summit Securities Group LLC3,048$34K0.0%N/A0.004%Search for SEC Filing on Google Icon
4/27/2026Simplify Asset Management Inc.262,386$2.92M0.0%-18.5%0.330%Search for SEC Filing on Google Icon
4/27/2026Private Advisor Group LLC10,180$0.11M0.0%-30.2%0.013%Search for SEC Filing on Google Icon
4/21/2026Wasatch Advisors LP1,340,916$14.90M0.1%+0.7%1.688%Search for SEC Filing on Google Icon
2/23/2026Kera Capital Partners Inc.24,255$0.40M0.1%-19.3%0.034%Search for SEC Filing on Google Icon
2/23/2026Virtu Financial LLC15,540$0.26M0.0%N/A0.022%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.3,920,446$65.04M0.0%+1.4%5.489%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd39,400$0.65M0.0%-27.8%0.055%Search for SEC Filing on Google Icon
2/18/2026VARCOV Co.86,759$1.44M0.6%N/A0.121%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC46,937$0.78M0.2%+5.9%0.066%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP134,546$2.23M0.0%-8.1%0.188%Search for SEC Filing on Google Icon
2/18/2026SummitTX Capital L.P.517,820$8.59M0.3%+34.2%0.725%Search for SEC Filing on Google Icon
2/18/2026Tudor Investment Corp ET AL28,554$0.47M0.0%-16.2%0.040%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC2,082,180$34.54M0.0%-59.0%2.915%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC21,500$0.36M0.0%N/A0.030%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP44,258$0.73M0.0%N/A0.062%Search for SEC Filing on Google Icon
2/18/2026Catalio Capital Management LP698,996$11.60M2.1%-38.1%0.979%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.207,085$3.44M0.0%-29.8%0.290%Search for SEC Filing on Google Icon
2/18/2026683 Capital Management LLC1,785,000$29.61M1.3%-1.9%2.499%Search for SEC Filing on Google Icon
2/18/20269823 Capital L.P.10,429$0.17M0.1%N/A0.015%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC30,944$0.51M0.0%N/A0.043%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC54,448$0.90M0.0%+3.5%0.076%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC21,737$0.36M0.0%N/A0.030%Search for SEC Filing on Google Icon
2/17/2026Trexquant Investment LP136,824$2.27M0.0%+75.0%0.192%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC17,408$0.29M0.0%N/A0.024%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD37,071$0.62M0.0%+16.1%0.052%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System40,143$0.67M0.0%+1,288.6%0.056%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board15,285$0.25M0.0%N/A0.021%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP22,401$0.37M0.0%-68.6%0.031%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada22,554$0.37M0.0%-86.1%0.032%Search for SEC Filing on Google Icon
2/17/2026Graham Capital Management L.P.12,867$0.21M0.0%N/A0.018%Search for SEC Filing on Google Icon
2/17/2026Persistent Asset Partners Ltd12,916$0.21M0.1%N/A0.018%Search for SEC Filing on Google Icon
2/16/2026Next Century Growth Investors LLC393,774$6.53M0.5%N/A0.551%Search for SEC Filing on Google Icon
2/16/2026Entropy Technologies LP11,000$0.18M0.0%N/A0.015%Search for SEC Filing on Google Icon
2/16/2026Avidity Partners Management LP206,076$3.42M1.0%-32.7%0.289%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC84,859$1.41M0.0%-33.9%0.119%Search for SEC Filing on Google Icon
2/13/2026Kestra Advisory Services LLC2,275$38K0.0%N/A0.003%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 12,438$0.21M0.0%-14.9%0.017%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co6,818$0.11M0.0%N/A0.010%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp51,661$0.86M0.0%+160.0%0.072%Search for SEC Filing on Google Icon
2/13/2026Southeast Asset Advisors LLC42,874$0.71M0.1%N/A0.060%Search for SEC Filing on Google Icon
2/13/2026Bridgefront Capital LLC16,981$0.28M0.1%N/A0.024%Search for SEC Filing on Google Icon
2/13/2026Rafferty Asset Management LLC13,855$0.23M0.0%N/A0.019%Search for SEC Filing on Google Icon
2/13/2026Birchview Capital LP195,000$3.24M1.9%+129.4%0.273%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.397,910$6.60M0.0%+8.7%0.557%Search for SEC Filing on Google Icon
2/13/2026State Street Corp1,149,536$19.07M0.0%+9.1%1.610%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd1,606$27K0.1%N/A0.002%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC30,631$0.51M0.0%N/A0.043%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN68,016$1.13M0.0%+26.8%0.095%Search for SEC Filing on Google Icon
2/12/2026Wasatch Advisors LP1,331,669$22.09M0.1%-13.4%1.865%Search for SEC Filing on Google Icon
2/12/2026HRT Financial LP27,010$0.45M0.0%+19.9%0.038%Search for SEC Filing on Google Icon
2/12/2026Tocqueville Asset Management L.P.34,700$0.58M0.0%+40.5%0.049%Search for SEC Filing on Google Icon
2/12/2026Ensign Peak Advisors Inc2,352,020$39.02M0.1%-6.0%3.293%Search for SEC Filing on Google Icon
2/12/2026New York State Common Retirement Fund41,756$0.69M0.0%+287.7%0.058%Search for SEC Filing on Google Icon
2/12/2026Campbell & CO Investment Adviser LLC115,284$1.91M0.1%N/A0.161%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank84,000$1.39M0.0%N/A0.118%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC108,846$1.81M0.0%-1.1%0.152%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG33,380$0.55M0.0%+12.9%0.047%Search for SEC Filing on Google Icon
2/11/2026GW&K Investment Management LLC1,306,678$21.68M0.2%+14.2%1.830%Search for SEC Filing on Google Icon
2/11/2026Fox Run Management L.L.C.20,487$0.34M0.1%N/A0.029%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Phathom Pharmaceuticals logo
Phathom Pharmaceuticals, Inc., biopharmaceutical company, focuses on developing and commercializing treatments for gastrointestinal diseases. The company has the rights in the United States, Europe, and Canada for an investigational potassium-competitive acid blocker (P-CAB) that blocks acid secretion in the stomach. It is also developing vonoprazan for the treatment of erosive gastroesophageal reflux disease; and in combination with antibiotics for the treatment of Helicobacter pylori infection. The company was incorporated in 2018 and is headquartered in Florham Park, New Jersey.
Read More on Phathom Pharmaceuticals

Today's Range

Now: $8.66
Low: $8.51
High: $8.92

50 Day Range

MA: $10.34
Low: $8.23
High: $12.61

52 Week Range

Now: $8.66
Low: $8.21
High: $18.31

Volume

992,684 shs

Average Volume

1,782,358 shs

Market Capitalization

$700.59 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.51

Who are the company insiders with the largest holdings of Phathom Pharmaceuticals?

Phathom Pharmaceuticals' top insider shareholders include:
  1. Pharmaceutical Co Ltd Takeda (Major Shareholder)
  2. Azmi Nabulsi (COO)
  3. Terrie Curran (Insider)
  4. Molly Henderson (CFO)
  5. Asit Parikh (Director)
  6. James N Topper (Director)
  7. Frank Karbe (Director)
  8. Robert Charles Breedlove (Insider)
  9. David A Socks (Director)
  10. Life Sciences Ix LP Frazier (Major Shareholder)
Learn More about top insider investors at Phathom Pharmaceuticals.

Who are the major institutional investors of Phathom Pharmaceuticals?

Phathom Pharmaceuticals' top institutional shareholders include:
  1. BlackRock Inc. — 5.59%
  2. Carlyle Group Inc. — 4.32%
  3. Wasatch Advisors LP — 1.64%
  4. Hsbc Holdings PLC — 0.88%
  5. Hsbc Holdings PLC — 0.88%
  6. California State Teachers Retirement System — 0.69%
Learn More about top institutional investors of Phathom Pharmaceuticals stock.

Which major investors are selling Phathom Pharmaceuticals stock?

Within the previous quarter, PHAT stock was sold by these institutional investors:
  1. Wasatch Advisors LP

Which major investors are buying Phathom Pharmaceuticals stock?

Within the previous quarter, PHAT stock was acquired by institutional investors including:
  1. BlackRock Inc.
  2. Carlyle Group Inc.
  3. Hsbc Holdings PLC
  4. Hsbc Holdings PLC
  5. California State Teachers Retirement System
  6. Hennion & Walsh Asset Management Inc.
  7. Bank of New York Mellon Corp
  8. Bank of America Corp DE
Within the previous year, these company insiders have bought Phathom Pharmaceuticals stock:
  1. Asit Parikh (Director)
  2. James N Topper (Director)
  3. Frank Karbe (Director)
Learn More investors buying Phathom Pharmaceuticals stock.

Phathom Pharmaceuticals Active Insiders

Azmi Nabulsi
Azmi Nabulsi (Age 66)
COO
Molly Henderson
Molly Henderson
CFO
David A Socks
David A Socks (Age 50)
Director
Asit Parikh
Asit Parikh
Director
Frank Karbe
Frank Karbe
Director
James N Topper
James N Topper
Director
Terrie Curran
Terrie Curran (Age 56)
Insider
Robert Charles Breedlove
Robert Charles Breedlove
Insider