KO
Insider
Kristen M Oelschlager
Chief Operating OfficerKristen M Oelschlager (Chief Operating Officer) filed 8 Form 4 reports in the trailing twelve months (0 purchases, 8 sales, 1 filed past the two-business-day deadline), most often in Castle Biosciences, Inc. (CSTL). The largest single filing was $838K of CSTL (24,602 sh across 3 lots, as filed), executed Aug 24.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
8
0 buys · 8 sells · 1 late
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$3.3M
shares × price, as filed
Last traded
Aug 25
Filed Aug 26
Median ADV $11.6M across their filed names
Open performance→Volume by month
Buys $0
Sells $4.0M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
7 filings
Sector per market data · by filing · past 12 months
Most traded names
CSTLRecent filings
CSTLSALE
Castle Biosciences, Inc.
View filing →
$838K24,602 sh across 3 lots
Exec Aug 24
Filed Aug 26 · 4:16 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $135K
4,486 sh × $30.00
Exec Aug 3
Filed Aug 5 · 4:18 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $200K
8,186 sh × $24.40
Exec Jul 1
Filed Jul 6 · 4:24 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $178K
8,587 sh × $20.71
Exec Jun 16
Filed Jun 18 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $585K
14,888 sh × $39.31
Exec Dec 17 2025
Filed Dec 19 2025 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $665K
18,932 sh × $35.10
Exec Nov 11 2025
Filed Nov 13 2025 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $317K
12,678 sh × $25.04
Exec Oct 31 2025
Filed Nov 4 2025 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $391K
18,007 sh × $21.69
Exec Aug 27 2025
Filed Nov 4 2025 · 5:30 PM ET † More filings →