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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
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
Steven L. BastaPresident and CEO2025-11-2848,375$15.62
$755.62kSell
Robert Charles BreedlovePrincipal Accounting Officer2025-11-03524$13.51
$7.08kSell

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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 LP17.52%12,466,489$152.47MInstitution
Medicxi Ventures Management Jersey Ltd10.49%7,464,572$91.29MInsider
Medicxi Ventures Management Jersey Ltd10.49%7,464,572$91.29MInstitution
James N. Topper8.35%5,937,240$72.61MInsider
Frazier Life Sciences IX LP8.21%5,842,352$71.45MInsider
Millennium Management LLC7.14%5,081,451$62.15MInstitution
Invesco Ltd5.43%3,864,971$47.27MInstitution
Takeda Pharmaceutical Co Ltd5.28%3,755,583$45.93MInsider
Carlyle Group Inc4.92%3,496,808$42.77MInstitution
Blackrock Inc4.78%3,402,324$41.61MInstitution

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PHAT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PHAT65.22%34.78%Net SellingNet Selling
SPRY44.43%55.57%Net Selling
EVMN0.00%49.18%Net BuyingNet Selling
ABCL34.75%44.84%Net BuyingNet Buying
XNCR72.05%27.95%Net SellingNet Buying
View Top Biotech Stocks

Phathom Pharmaceuticals Stock Ownership FAQ

Who owns Phathom Pharmaceuticals?

Phathom Pharmaceuticals (NASDAQ: PHAT) is owned by 87.63% institutional shareholders, 46.72% 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 10.49% of the company. Medicxi Ventures Management Jersey Ltd's Phathom Pharmaceuticals shares are currently valued at $89.72M.

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