Brendan Luu - 12 Feb 2026 Form 4 Insider Report for ENANTA PHARMACEUTICALS INC (ENTA)

Role: Chief Business Officer
Signature: /s/ Matthew Kowalsky as attorney-in-fact
Issuer symbol: ENTA
Transactions as of: 12 Feb 2026
Net transactions value: -$46,412
Form type: 4
Filing time: 13 Feb 2026, 16:31:44 UTC
Previous filing: 05 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Luu Brendan	Chief Business Officer	C/O ENANTA PHARMACEUTICALS, INC., 4 KINGSBURY AVENUE, WATERTOWN	/s/ Matthew Kowalsky as attorney-in-fact	13 Feb 2026	0001842369

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ENTA	Common Stock	Award	$0	+1,575	+4.1%	$0.000000	39,904	12 Feb 2026	Direct	F1
transaction	ENTA	Common Stock	Award	$0	+4,987	+12%	$0.000000	44,891	12 Feb 2026	Direct	F2
transaction	ENTA	Common Stock	Tax liability	$46,412	-3,257	-7.3%	$14.25	41,634	12 Feb 2026	Direct	F3

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

Explanation of Responses:

Id	Content
F1	Represents shares of Enanta common stock issued under performance share units ("PSUs") that vested as a result of performance against two-year research and development milestones in the calendar 2024-2025 period as determined by the Compensation Committee of Enanta's Board of Directors, and then settled with the issuance of the shares of Enanta common stock on February 12, 2026.
F2	Represents shares of Enanta common stock issued under a relative total stockholder return unit ("rTSRU") award that was subject to performance-vesting restrictions based on the relative total stockholder return of Enanta's common stock in relation to the total stockholder return of the component companies in the Nasdaq Biotech Index over the same 60-day calendar periods two years apart. The performance level was determined by the Compensation Committee of Enanta's Board of Directors and the rTSRU settled with the issuance of the shares of Enanta common stock on February 12, 2026.
F3	Represents the number of shares of common stock automatically forfeited by the reporting person to cover withholding taxes due as a result of settlement of the PSU and rTSRU awards.