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NASDAQ: PHAT
Phathom Pharmaceuticals Inc Stock Ownership - Who owns Phathom Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Phathom Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Steven L. BastaPresident and CEO2025-09-2548,375$11.66
$564.05kSell
Robert Charles BreedlovePrincipal Accounting Officer2025-09-05461$12.09
$5.57kSell
Robert Charles BreedlovePrincipal Accounting Officer2025-07-161,692$8.36
$14.15kSell
James N. TopperDirector2025-05-213,780$3.87
$14.61kBuy
James N. TopperDirector2025-05-146,300$3.32
$20.92kBuy
James N. TopperDirector2025-05-131,120$3.16
$3.54kBuy
James N. TopperDirector2025-05-1212,601$3.04
$38.29kBuy
James N. TopperDirector2025-05-0933,376$3.19
$106.57kBuy
James N. TopperDirector2025-05-092,226$3.62
$8.05kBuy
Asit ParikhDirector2025-05-075,000$2.40
$11.98kBuy

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Net Insider Buy/Sell (L12M) Ownership

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PHAT Shareholders

What type of owners hold Phathom Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Frazier Life Sciences Management LP17.86%12,466,489$172.16MInstitution
Medicxi Ventures Management Jersey Ltd10.69%7,464,572$103.09MInstitution
Medicxi Ventures Management Jersey Ltd10.69%7,464,572$103.09MInsider
James N. Topper8.50%5,937,240$81.99MInsider
Frazier Life Sciences IX LP8.37%5,842,352$80.68MInsider
Invesco Ltd5.93%4,140,072$57.17MInstitution
Takeda Pharmaceutical Co Ltd5.38%3,755,583$51.86MInsider
Carlyle Group Inc5.01%3,496,808$48.29MInstitution
Blackrock Inc4.75%3,315,348$45.78MInstitution
Ra Capital Management LP4.46%3,115,008$43.02MInsider

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PHAT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PHAT63.80%36.20%Net BuyingNet Selling
PHAR0.01%0.00%
FTRE99.51%0.49%Net BuyingNet Buying
BCAX70.82%29.18%Net SellingNet Selling
URGN79.85%20.15%Net SellingNet Selling
View Top Biotech Stocks

Phathom Pharmaceuticals Stock Ownership FAQ

Who owns Phathom Pharmaceuticals?

Phathom Pharmaceuticals (NASDAQ: PHAT) is owned by 82.24% institutional shareholders, 46.66% Phathom Pharmaceuticals insiders, and 0.00% retail investors. Medicxi Ventures Management Jersey Ltd is the largest individual Phathom Pharmaceuticals shareholder, owning 7.46M shares representing 10.69% of the company. Medicxi Ventures Management Jersey Ltd's Phathom Pharmaceuticals shares are currently valued at $101.07M.

If you're new to stock investing, here's how to buy Phathom Pharmaceuticals stock.
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