SEC Form 4 reporting owner

Krishnan Suma

Krishnan Suma has filed 63 Form 4 transactions reported between December 4, 2025 and September 4, 2026, as President, R&D of Krystal Biotech, Inc..

Name as filed: Krishnan Suma

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$34.1M
49 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 4, 2026
transaction date

Roles and reported holdings

  • KRYSKrystal Biotech, Inc.
    Dec 4, 2025 – Sep 4, 2026

    President, R&D

    Held directly1,302,145 sh as of Sep 4, 2026 · Form 4
    Held indirectly (latest line)1,500,253 sh as of Feb 27, 2026 · Form 4

    24 months: $34.1M sold

Transaction history

All 63 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct399$146K@ $366.56Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct826$302K@ $365.41Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,329$484K@ $364.48Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct565$205K@ $363.34Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,992$722K@ $362.65Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,242$449K@ $361.61Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,320$836K@ $360.47Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,392$1.2M@ $359.39Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,180$1.1M@ $358.42Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,962$1.4M@ $357.57Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,267$1.2M@ $356.37Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,006$713K@ $355.57Form 4
Sep 4, 2026KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S520$184K@ $354.54Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct240$75K@ $311.65Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,039$634K@ $310.94Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,801$868K@ $309.95Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,803$1.2M@ $308.89Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct12,729$3.9M@ $307.81Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,348$414K@ $307.09Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct480$147K@ $305.87Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct400$122K@ $304.89Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct247$75K@ $303.17Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct593$179K@ $302.25Form 4
Jun 4, 2026KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S320$96K@ $300.75Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,700$453K@ $266.42Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct6,000$1.6M@ $265.16Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct4,852$1.3M@ $264.64Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,248$593K@ $263.58Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct1,938$508K@ $262.35Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct2,931$766K@ $261.41Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct3,667$955K@ $260.37Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct668$173K@ $259.61Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct589$152K@ $258.54Form 4
Mar 4, 2026KRYSPresident, R&DOpen-market saleCode S · direct407$105K@ $257.32Form 4
Feb 27, 2026KRYSPresident, R&DGrant or awardCode A · direct43,536—Form 4
Feb 27, 2026KRYSPresident, R&DGrant or awardCode A · direct7,256—Form 4
Feb 27, 2026KRYSPresident, R&DGrant or awardCode A · direct18,100—Form 4
Feb 27, 2026KRYSPresident, R&DShares withheld for tax or exercise priceCode F · indirect2,605$718K@ $275.64Form 4
Feb 27, 2026KRYSPresident, R&DOption exerciseCode M · indirect5,725—Form 4
Feb 27, 2026KRYSPresident, R&DShares withheld for tax or exercise priceCode F · indirect11,942$3.3M@ $275.64Form 4
Feb 27, 2026KRYSPresident, R&DOption exerciseCode M · indirect26,250—Form 4
Feb 27, 2026KRYSPresident, R&DShares withheld for tax or exercise priceCode F · indirect3,981$1.1M@ $275.64Form 4
Feb 27, 2026KRYSPresident, R&DOption exerciseCode M · indirect8,750—Form 4
Feb 27, 2026KRYSPresident, R&DShares withheld for tax or exercise priceCode F · direct1,820$502K@ $275.64Form 4
Feb 27, 2026KRYSPresident, R&DOption exerciseCode M · direct4,000—Form 4
Feb 27, 2026KRYSPresident, R&DShares withheld for tax or exercise priceCode F · direct10,236$2.8M@ $275.64Form 4
Feb 27, 2026KRYSPresident, R&DOption exerciseCode M · direct22,500—Form 4
Dec 5, 2025KRYSPresident, R&DGiftCode G · indirect5,000—Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S10,505$2.3M@ $221.78Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S2,625$578K@ $220.34Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirect5,693$1.2M@ $219.53Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S2,577$564K@ $218.72Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S1,600$347K@ $217.04Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S344$74K@ $215.48Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · indirectAlso reported by Krishnan Krish S956$205K@ $214.28Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S200$44K@ $222.38Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S10,461$2.3M@ $221.82Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S2,627$579K@ $220.52Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S5,419$1.2M@ $219.68Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S3,593$786K@ $218.83Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S1,400$304K@ $216.97Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · directAlso reported by Krishnan Krish S600$129K@ $215.49Form 4
Dec 4, 2025KRYSPresident, R&DOpen-market saleCode S · direct700$150K@ $214.25Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.