SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Goux Laurent Louis Jean (Last) (First) (Middle) C/O KRYSTAL BIOTECH, INC. 2100 WHARTON STREET, SUITE 701 (Street) PITTSBURGH PA 15203 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 03/01/2026	3. Issuer Name and Ticker or Trading Symbol Krystal Biotech, Inc. [ KRYS ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) Other (specify below) EVP, Head of International	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	919	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	(1)	02/26/2036	Common Stock	9,050	275.64	D
Restricted Stock Units	(2)	(2)	Common Stock	3,628(3)	(4)	D
Stock Option (Right to Buy)	(5)	02/27/2035	Common Stock	7,449	179.25	D
Restricted Stock Units	(6)	(6)	Common Stock	891(3)	(4)	D
Stock Option (Right to Buy)	(7)	02/27/2034	Common Stock	2,367	159.47	D
Restricted Stock Units	(8)	(8)	Common Stock	674(3)	(4)	D
Stock Option (Right to Buy)	(9)	02/27/2033	Common Stock	4,750	81.91	D
Stock Option (Right to Buy)	(10)	02/27/2032	Common Stock	2,750	63.55	D
Stock Option (Right to Buy)	(10)	09/29/2031	Common Stock	19,000	52.21	D

Explanation of Responses:

1. The stock option was granted on February 27, 2026, and vests in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, subject to the Reporting Person's continued service through each applicable vesting date.

2. The restricted stock units ("RSUs") vest in four equal annual installments with the first installment vesting on February 27, 2027.

3. The number of RSUs in this column represents the number of shares of common stock the Reporting Person will receive assuming the Reporting Person's continued service to the Company on all applicable vesting dates.

4. Each RSU represents a contingent right to receive one share of the Company's common stock, subject to the Reporting Person's continued service to the Company on each applicable vesting date.

5. The stock option was granted on February 28, 2025, and vested or will vest in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, subject to the Reporting Person's continued service through each applicable vesting date.

6. The RSUs vested or will vest in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, February 28, 2025, subject to the Reporting Person's continued service through each applicable vesting date.

7. The stock option was granted on February 29, 2024, and vested or will vest in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, subject to the Reporting Person's continued service through each applicable vesting date.

8. The RSUs vested or will vest in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, February 29, 2024, subject to the Reporting Person's continued service through each applicable vesting date.

9. The stock option was granted on February 28, 2023, and vested or will vest in four equal annual installments on each of the first, second, third, and fourth anniversaries of the grant date, subject to the Reporting Person's continued service through each applicable vesting date.

10. The stock option is fully vested.

Remarks:

Exhibit 24.1 Power of Attorney

	/s/ Laurent Goux	03/06/2026
	** 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 5 (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).
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