Phathom Pharmaceuticals, Inc. 4

Principal Accounting Officer Robert Charles Breedlove surrendered 1,555 shares of Phathom Pharmaceuticals common stock at about $11.04 per share to cover tax withholding on RSU vesting.

On July 14, 2026, Principal Accounting Officer Robert Charles Breedlove of Phathom Pharmaceuticals, Inc. surrendered 1,555 shares of common stock at an implied price of $11.035 per share, with an aggregate value of approximately $17,170, to cover the issuer’s tax withholding obligations upon restricted stock unit vesting; this was reported as a disposition to the issuer and is a routine, non-open-market, tax-related transaction. Following the transaction, he directly owned 59,925 shares and indirectly held approximately 6,945.4 shares through a 401(k) plan.

Filing Facts

CIK

1783183

Ticker

PHAT

Form

4

Source Type

fda

Accession

0001193125-26-306165

Alert Tier

4