Robert Charles Breedlove - 19 May 2025 Form 4 Insider Report for Phathom Pharmaceuticals, Inc. (PHAT)

Role: Principal Accounting Officer
Signature: /s/ Robert Charles Breedlove
Issuer symbol: PHAT
Transactions as of: 19 May 2025
Net transactions value: $0
Form type: 4
Filing time: 21 May 2025, 17:17:36 UTC
Previous filing: 06 May 2025
Next filing: 18 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Breedlove Robert Charles	Principal Accounting Officer	C/O PHATHOM PHARMACEUTICALS, INC., 100 CAMPUS DRIVE, SUITE 102, FLORHAM PARK	/s/ Robert Charles Breedlove	21 May 2025	0002066645

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PHAT	Stock Option (Right to Buy)	Award	$0	+33,000		$0.000000	33,000	19 May 2025	Common Stock	33,000	$4.39	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The stock option will vest with respect to 25% of the shares of common stock on May 19, 2026, and will vest with respect to the remaining shares in equal monthly installments over the following three years, subject to the Reporting Person's continuous service to the Issuer on the applicable vesting dates.