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 $5.9M · 9sales $41.9M · 6net −$36.0M
$10k$10k$1M$1M$100M$100MbuyssalesSep 2017Mar 2019Sep 2020Mar 2022Sep 2023Mar 2025Sep 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
Oct 18, 2018 PForm 4 →Oct 22, 5:28 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner25,000$20.00$500,0002,001,462+1.26% plan?
Oct 18, 2018 PForm 4 →Oct 22, 5:27 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner25,000$20.00$500,0002,036,462+1.24% plan?
Jun 5, 2018 PForm 4 →Jun 7, 4:08 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner25,000$11.02$275,6091,976,462+1.28% plan?
Jun 1, 2018 JForm 4 →Jun 5, 4:01 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner16,213——1,951,462— plan?
Jun 1, 2018 JForm 4 →Jun 5, 4:00 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner26,213——2,011,462— plan?
May 22, 2018 PForm 4 →May 24, 5:28 pm EDTAntony A RileyChief Financial Officer2,800$10.75$30,1002,800— plan?
May 9, 2018 PForm 4 →May 11, 4:27 pm EDTR Douglas NorbyDirector9,000$10.42$93,7809,000— plan?
Mar 19, 2018 PForm 4 →Mar 19, 4:43 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner50,000$11.00$550,0001,985,249+2.58% plan?
Sep 22, 2017 CForm 4 →Sep 25, 5:30 pm EDTDino A RossiDirector123,691——123,691— plan?
Sep 22, 2017 CForm 4 →Sep 25, 5:28 pm EDTDaniel JanneyDirector124,456——455,046— plan?
Sep 22, 2017 PForm 4 →Sep 25, 5:28 pm EDTDaniel JanneyDirector200,000$10.00$2,000,000330,590+153% plan?
Sep 22, 2017 CForm 4 →Sep 25, 5:25 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner112,162——112,162— plan?
Sep 22, 2017 PForm 4 →Sep 25, 5:25 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner100,000$10.00$1,000,0001,935,249+5.45% plan?
Sep 22, 2017 CForm 4 →Sep 25, 5:22 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner112,162——112,162— plan?
Sep 22, 2017 PForm 4 →Sep 25, 5:22 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner100,000$10.00$1,000,0001,935,249+5.45% plan?

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
Mar 1, 2019 AForm 4 →Mar 6, 5:53 pm ESTJulian S GangolliDirector20,000——20,000— late
May 31, 2018 AForm 4 →Jun 4, 7:43 pm EDTDaniel JanneyDirector7,500——7,500—
May 31, 2018 AForm 4 →Jun 4, 4:53 pm EDTDino A RossiDirector7,500——7,500—
May 31, 2018 AForm 4 →Jun 4, 4:49 pm EDTR Douglas NorbyDirector7,500——7,500—
Mar 8, 2018 AForm 4 →May 24, 5:28 pm EDTAntony A RileyChief Financial Officer25,000——25,000— late
Sep 22, 2017 CForm 4 →Sep 25, 5:30 pm EDTDino A RossiDirector123,691——0—
Sep 22, 2017 CForm 4 →Sep 25, 5:28 pm EDTDaniel JanneyDirector124,456——0—
Sep 22, 2017 CForm 4 →Sep 25, 5:25 pm EDTSuma KrishnanChief Operating Officer, Director, 10% Owner112,162——0—
Sep 22, 2017 CForm 4 →Sep 25, 5:22 pm EDTKrish S KrishnanPresident and CEO, Director, 10% Owner112,162——0—