Form4insider filings, from the source

Company · CIK 0001711279 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq

Krystal Biotech, Inc. · KRYS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $41.9M · 6net −$41.9M
$10k$10k$1M$1M$100M$100MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 4, 2026 SForm 4 →Sep 4, 7:15 pm EDTSuma KrishnanPresident, R&D, Director, 10% Owner25,000$359.32$8,982,9861,302,145−1.88%10b5-1
Sep 4, 2026 SForm 4 →Sep 4, 7:14 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner25,000$359.32$8,983,0841,347,543−1.82%10b5-1
Aug 14, 2026 SForm 4 →Aug 14, 6:22 pm EDTDino A RossiDirector25,000$329.12$8,227,95350,000−33.3%
Aug 14, 2026 GForm 4 →Aug 14, 6:22 pm EDTDino A RossiDirector3,691——75,000—
Jun 25, 2026 SForm 4 →Jun 26, 6:45 pm EDTJohn Charles ThomasEVP, General Counsel1,000$347.27$347,2700−100%10b5-1
Jun 25, 2026 MForm 4 →Jun 26, 6:45 pm EDTJohn Charles ThomasEVP, General Counsel1,000$179.25$179,2501,000—10b5-1
Jun 4, 2026 SForm 4 →Jun 5, 6:40 pm EDTSuma KrishnanPresident, R&D, Director, 10% Owner25,000$308.11$7,702,8251,378,155−1.78%10b5-1
Jun 4, 2026 SForm 4 →Jun 5, 6:38 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner25,000$308.12$7,702,9841,450,253−1.69%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 AForm 4 →Sep 16, 8:05 pm EDTDino A RossiDirector1,658——471—
Sep 14, 2026 AForm 4 →Sep 16, 8:03 pm EDTEverett Rand SutherlandDirector1,658——471—
Sep 14, 2026 AForm 4 →Sep 16, 8:02 pm EDTCatherine MazzaccoDirector1,658——471—
Sep 14, 2026 AForm 4 →Sep 16, 8:01 pm EDTChristopher MasonDirector1,658——471—
Sep 14, 2026 AForm 4 →Sep 16, 8:01 pm EDTDaniel JanneyDirector1,658——471—
Sep 14, 2026 AForm 4 →Sep 16, 8:00 pm EDTJulian S GangolliDirector1,658——471—
Jun 25, 2026 MForm 4 →Jun 26, 6:45 pm EDTJohn Charles ThomasEVP, General Counsel1,000——6,500—10b5-1