Form 4 for PHAT Phathom Pharmaceuticals, Inc.

Accepted 2026-01-27 00:00:00 ET · period of report 2026-01-23 · accession 0001193125-26-024600 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-01-27	2026-01-23	PHAT	Parikh Asit	Dir	G - Gift	$0.00	-80.5K	50.5K	-61%	$0
I	2026-01-27	2026-01-23	PHAT	Parikh Asit	Dir	G - Gift	$0.00	+80.5K	80.5K	New	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-01-23	G	D	80,500	$0.00	50,500	D by Trust	—	—	(F2) The shares are subject to a lock-up agreement entered into by the Reporting Person in connection with the underwriting agreement dated January 7, 2026 (the Lock-Up Agreement). The trust has agreed in writing to be bound by the same terms described in the Lock-Up Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer.
2	Common	Common Stock	2026-01-23	G	A	80,500	$0.00	80,500	I	—	—	(F1) Reflects shares transferred for no consideration to a trust for the benefit of the Reporting Person's spouse and for which the Reporting Person serves as trustee.