Krish S. Krishnan - 27 Feb 2026 Form 4 Insider Report for Krystal Biotech, Inc. (KRYS)

Signature
/s/ Krish S. Krishnan
Issuer symbol
KRYS
Transactions as of
27 Feb 2026
Net transactions value
-$8,430,174
Form type
4
Filing time
03 Mar 2026, 18:30:23 UTC
Previous filing
05 Dec 2025
Next filing
06 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Krishnan Krish S President and CEO, Director, 10%+ Owner C/O KRYSTAL BIOTECH, INC., 2100 WHARTON STREET, SUITE 701, PITTSBURGH /s/ Krish S. Krishnan 03 Mar 2026 0001298709

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KRYS Common Stock Options Exercise $0 +8,750 +0.59% $0.000000 1,486,806 27 Feb 2026 Direct F1
transaction KRYS Common Stock Tax liability $1,097,323 -3,981 -0.27% $275.64 1,482,825 27 Feb 2026 Direct F2, F3
transaction KRYS Common Stock Options Exercise $0 +26,250 +1.8% $0.000000 1,509,075 27 Feb 2026 Direct F4
transaction KRYS Common Stock Tax liability $3,291,693 -11,942 -0.79% $275.64 1,497,133 27 Feb 2026 Direct F3, F5
transaction KRYS Common Stock Options Exercise $0 +5,725 +0.38% $0.000000 1,502,858 27 Feb 2026 Direct F6
transaction KRYS Common Stock Tax liability $718,042 -2,605 -0.17% $275.64 1,500,253 27 Feb 2026 Direct F3, F7
transaction KRYS Common Stock Options Exercise $0 +22,500 +1.6% $0.000000 1,436,211 27 Feb 2026 By Spouse F8, F9, F10
transaction KRYS Common Stock Tax liability $2,821,451 -10,236 -0.71% $275.64 1,425,975 27 Feb 2026 By Spouse F3, F9, F10, F11
transaction KRYS Common Stock Options Exercise $0 +4,000 +0.28% $0.000000 1,429,975 27 Feb 2026 By Spouse F9, F10, F12
transaction KRYS Common Stock Tax liability $501,665 -1,820 -0.13% $275.64 1,428,155 27 Feb 2026 By Spouse F3, F9, F10, F13
holding KRYS Common Stock 90,000 27 Feb 2026 By Krishnan Spousal Trust
holding KRYS Common Stock 50,000 27 Feb 2026 By Krishnan Family Trust F14

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction KRYS Restricted Stock Units Options Exercise $0 -8,750 -33% $0.000000 17,500 27 Feb 2026 Common Stock 8,750 Direct F1
transaction KRYS Performance Stock Units Options Exercise $0 -26,250 -100% $0.000000 0 27 Feb 2026 Common Stock 26,250 Direct F4
transaction KRYS Restricted Stock Units Options Exercise $0 -5,725 -25% $0.000000 17,175 27 Feb 2026 Common Stock 5,725 Direct F6
transaction KRYS Stock Option (Right to Buy) Award $0 +45,249 $0.000000 45,249 27 Feb 2026 Common Stock 45,249 $275.64 Direct F15
transaction KRYS Restricted Stock Units Award $0 +18,140 $0.000000 18,140 27 Feb 2026 Common Stock 18,140 Direct F16, F17, F18
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 35,000 restricted stock units ("RSUs") were granted on February 29, 2024. 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. The RSUs vest ratably over a four-year period. 8,750 RSUs vested on February 27, 2026.
F2 Represents the number of shares of common stock surrendered to the Company for tax withholding upon the vesting of 8,750 RSUs on February 27, 2026.
F3 The closing price on February 27, 2026 of the Company's common stock on the Nasdaq Global Select Market.
F4 52,500 performance stock units ("PSUs") were granted on February 29, 2024. Each PSU represented a contingent right to receive one share of the Company's common stock, subject to the achievement of certain performance criteria during the year ended December 31, 2024, as approved by the Company's Compensation Committee, and the Reporting Person's continued service to the Company on each applicable vesting date following such achievement. The PSUs vested ratably over a two-year period. All of the performance criteria were achieved and the remaining one-half of the PSUs granted, or 26,250 PSUs, vested on February 27, 2026.
F5 Represents the number of shares of common stock surrendered to the Company for tax withholding upon the vesting of 26,250 PSUs on February 27, 2026.
F6 22,900 restricted stock units ("RSUs") were granted on February 28, 2025. 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. The RSUs vest ratably over a four-year period with the first installment, or 5,725 RSUs, vesting on February 27, 2026.
F7 Represents the number of shares of common stock surrendered to the Company for tax withholding upon the vesting of 5,725 RSUs on February 27, 2026.
F8 45,000 performance stock units ("PSUs") were granted on February 29, 2024, to the Reporting Person's spouse, Suma M. Krishnan. Each PSU represented a contingent right to receive one share of the Company's common stock, subject to the achievement of certain performance criteria during the year ended December 31, 2024, as approved by the Company's Compensation Committee, and the Reporting Person's spouse continued service to the Company on each applicable vesting date following such achievement. The PSUs vested ratably over a two-year period. All of the performance criteria were achieved and the remaining one-half of the PSUs granted, or 22,500 PSUs, vested on February 27, 2026.
F9 These same shares are also being reported on a Form 4 by the Reporting Person's spouse, Suma M. Krishnan.
F10 Directly beneficially owned by Suma M. Krishnan, the spouse of the Reporting Person.
F11 Represents number of shares of common stock surrendered to the Company for tax withholding by the Reporting Person's spouse, Suma M. Krishnan, upon the vesting of 22,500 PSUs on February 27, 2026.
F12 16,000 restricted stock units ("RSUs") were granted on February 28, 2025 to the Reporting Person's spouse, Suma M. Krishnan. Each RSU represents a contingent right to receive one share of the Company's common stock, subject to the Reporting Person's spouse continued service to the Company on each applicable vesting date. The RSUs vest ratably over a four-year period with the first installment, or 4,000 RSUs, vesting on February 27, 2026.
F13 Represents number of shares of common stock surrendered to the Company for tax withholding by the Reporting Person's spouse, Suma M. Krishnan, upon the vesting of 4,000 RSUs on February 27, 2026.
F14 Directly beneficially owned by the Krishnan Family Trust. The Reporting Person and his spouse are each joint beneficial owners of the trust with joint voting and investment control.
F15 The stock options vests in four equal annual installments beginning on February 27, 2027.
F16 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.
F17 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.
F18 The RSUs vest in four equal annual installments with the first installment vesting on February 27, 2027.