13F Pro

SEC Form 4 reporting owner

Oelschlager Kristen M

Oelschlager Kristen M has filed 24 Form 4 transactions reported between December 9, 2025 and September 1, 2026, as Chief Operating Officer of CASTLE BIOSCIENCES INC.

Name as filed: Oelschlager Kristen M

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$2.2M
12 lines
Companies
1
with Form 4 filings
Latest transaction
Sep 1, 2026
transaction date

Roles and reported holdings

  • CSTLCASTLE BIOSCIENCES INC
    Dec 9, 2025 – Sep 1, 2026

    Chief Operating Officer

    Held directly13,356 sh as of Sep 1, 2026 · Form 4
    Held indirectly (latest line)72,649 sh as of Aug 25, 2026 · Form 4

    24 months: $2.2M sold

Transaction history

All 24 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 1, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct200$7K@ $34.02Form 4
Sep 1, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct3,952$132K@ $33.36Form 4
Sep 1, 2026CSTLChief Operating OfficerOption exerciseCode M · direct4,152$14K@ $3.38Form 4
Aug 25, 2026CSTLChief Operating OfficerOpen-market saleCode S · indirect5,223$181K@ $34.64Form 4
Aug 25, 2026CSTLChief Operating OfficerOpen-market saleCode S · indirect7,161$245K@ $34.26Form 4
Aug 24, 2026CSTLChief Operating OfficerOpen-market saleCode S · indirect12,218$412K@ $33.69Form 4
Aug 3, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct1,100$34K@ $30.62Form 4
Aug 3, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct4,486$135K@ $30.00Form 4
Aug 3, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct3,000$87K@ $29.12Form 4
Jul 1, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct400$10K@ $24.78Form 4
Jul 1, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct8,186$200K@ $24.40Form 4
Jun 16, 2026CSTLChief Operating OfficerOpen-market saleCode S · direct8,587$178K@ $20.71Form 4
Mar 4, 2026CSTLChief Operating OfficerOption exerciseCode M · direct11,960—Form 4
Mar 4, 2026CSTLChief Operating OfficerOption exerciseCode M · direct13,811—Form 4
Mar 4, 2026CSTLChief Operating OfficerShares withheld for tax or exercise priceCode F · direct6,792$191K@ $28.17Form 4
Mar 4, 2026CSTLChief Operating OfficerOption exerciseCode M · direct25,771—Form 4
Mar 3, 2026CSTLChief Operating OfficerGrant or awardCode A · direct48,367—Form 4
Mar 3, 2026CSTLChief Operating OfficerShares withheld for tax or exercise priceCode F · direct2,427$67K@ $27.57Form 4
Jan 12, 2026CSTLChief Operating OfficerGrant or awardCode A · direct9,207—Form 4
Dec 17, 2025CSTLChief Operating OfficerOpen-market saleCode S · direct14,888$585K@ $39.31Form 4
Dec 10, 2025CSTLChief Operating OfficerShares withheld for tax or exercise priceCode F · direct2,552$97K@ $38.02Form 4
Dec 10, 2025CSTLChief Operating OfficerOption exerciseCode M · direct6,170—Form 4
Dec 9, 2025CSTLChief Operating OfficerShares withheld for tax or exercise priceCode F · direct4,691$179K@ $38.25Form 4
Dec 9, 2025CSTLChief Operating OfficerOption exerciseCode M · direct15,961—Form 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.