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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
Robert Charles BreedlovePrincipal Accounting Officer2026-02-27414$12.56
$5.20kSell
Robert Charles BreedlovePrincipal Accounting Officer2026-02-27964$12.56
$12.11kSell
Anne Marie CookChief Legal Off. Corp. Sec.2026-02-101,535$12.82
$19.68kSell
Steven L. BastaPresident and CEO2026-02-106,277$12.82
$80.47kSell
Robert Charles BreedlovePrincipal Accounting Officer2026-01-21776$13.61
$10.56kSell
Asit ParikhDirector2026-01-138,750$10.30
$90.13kBuy
Asit ParikhDirector2025-12-198,750$10.30
$90.13kBuy
Robert Charles BreedlovePrincipal Accounting Officer2025-12-18230$16.28
$3.74kSell
Anne Marie CookChief Legal Off. Corp. Sec.2025-12-177,703$15.36
$118.32kSell
Steven L. BastaPresident and CEO2025-12-1731,502$15.36
$483.87kSell

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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 LP15.82%12,466,489$131.90MInstitution
Medicxi Ventures Management Jersey Ltd9.47%7,464,572$78.98MInstitution
Medicxi Ventures Management Jersey Ltd9.47%7,464,572$78.98MInsider
James N. Topper7.53%5,937,240$62.82MInsider
Frazier Life Sciences IX LP7.41%5,842,352$61.81MInsider
Invesco Ltd4.98%3,920,446$41.48MInstitution
Takeda Pharmaceutical Co Ltd4.77%3,755,583$39.73MInsider
Blackrock Inc4.51%3,555,548$37.62MInstitution
Carlyle Group Inc4.44%3,496,808$37.00MInstitution
Vanguard Group Inc4.03%3,177,211$33.61MInstitution

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PHAT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PHAT65.08%34.92%Net SellingNet Selling
URGN81.29%18.71%Net SellingNet Selling
XNCR71.97%28.03%Net SellingNet Selling
ABUS30.49%69.51%
FTRE99.43%0.57%Net BuyingNet Selling
View Top Biotech Stocks

Phathom Pharmaceuticals Stock Ownership FAQ

Who owns Phathom Pharmaceuticals?

Phathom Pharmaceuticals (NASDAQ: PHAT) is owned by 78.63% institutional shareholders, 42.20% 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 9.47% of the company. Medicxi Ventures Management Jersey Ltd's Phathom Pharmaceuticals shares are currently valued at $78.98M.

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