Enanta director granted options on 20,000 shares

ENANTA PHARMACEUTICALS director Kristine Peterson reported a grant of stock options for 20,000 shares of common stock.

Rhea-AI Filing Summary

ENANTA PHARMACEUTICALS director Kristine Peterson reported a grant of stock options for 20,000 shares of common stock. The options have an exercise price of $14.17 per share, were granted on March 11, 2026, and expire on March 11, 2036. They vest in substantially equal monthly installments over one year starting from the grant date, reflecting a compensation-related award rather than an open-market trade.

Insider Trade Summary

Grant/Award: 20,000 shares

Grant/Award 1 txn

Insider Peterson Kristine

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy)	20,000	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 20,000 contracts (Direct)

Footnotes (1)

1. F1. Such option will become exercisable monthly in substantially equal installments over one year, beginning from the date of grant (March 11, 2026), with the final monthly installment vesting no later than the nearest trading day on the Nasdaq Global Select Market preceding the 2027 annual meeting of stockholders.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ENTA director Kristine Peterson report in this Form 4 filing?

Kristine Peterson reported receiving a stock option grant for 20,000 shares of Enanta common stock. The option is a compensation-related award rather than an open-market trade, reflecting additional potential equity exposure to the company’s future performance.

What are the key terms of Kristine Peterson’s Enanta (ENTA) stock option grant?

The grant covers options on 20,000 Enanta common shares at an exercise price of $14.17 per share. The options expire on March 11, 2036 and represent a right to buy shares, not an immediate ownership position or cash transaction.

How does Kristine Peterson’s Enanta stock option vest according to the Form 4?

The option becomes exercisable in substantially equal monthly installments over one year starting March 11, 2026. The final monthly installment vests no later than the nearest Nasdaq Global Select Market trading day before the 2027 annual stockholders’ meeting.

Did Kristine Peterson buy or sell ENTA shares in the market in this filing?

No market purchase or sale occurred; the filing shows a grant of derivative securities. Peterson received stock options as a compensation award, with no open-market buy or sell transactions reported in this Form 4 entry.

How many Enanta shares could be acquired under Kristine Peterson’s new option?

The option covers 20,000 underlying shares of Enanta common stock. If fully vested and exercised at the $14.17 strike price, it would convert into 20,000 issued shares, subject to Peterson choosing to exercise in the future.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/13/2026 - 04:18 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Peterson Kristine

(Last) (First) (Middle)

C/O ENANTA PHARMACEUTICALS, INC.

4 KINGSBURY AVENUE

(Street)

WATERTOWN MA 02472

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ENANTA PHARMACEUTICALS INC [ ENTA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$14.17	03/11/2026		A		20,000		(1)	03/11/2036	Common Stock	20,000	$0	20,000	D

Explanation of Responses:

1. Such option will become exercisable monthly in substantially equal installments over one year, beginning from the date of grant (March 11, 2026), with the final monthly installment vesting no later than the nearest trading day on the Nasdaq Global Select Market preceding the 2027 annual meeting of stockholders.

	/s/ Matthew Kowalsky as attorney-in-fact	03/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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