Basta Steven L - Insider Non-Derivative Transactions at Phathom Pharmaceuticals, Inc. (PHAT) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 17, 2025, Basta Steven L's relationship to Phathom Pharmaceuticals, Inc. (PHAT) is Director,Officer (President and CEO), and currently has 145,288 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other PHAT insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Basta Steven L - Insider Non-Derivative Transactions of PHAT Common Stock

Basta Steven L - Insider Non-Derivative Transactions at PHAT

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 18, 2025	F -- (Common Stock)	31502	15.36	113786
Dec 18, 2025	Acquisition -- (Common Stock)	62038	0	145288
Nov 29, 2025	F -- (Common Stock)	48375	15.62	83250
Nov 29, 2025	M -- (Common Stock)	90000	0	131625
Sep 26, 2025	F -- (Common Stock)	48375	11.66	41625
Sep 26, 2025	M -- (Common Stock)	90000	0	90000