TOP TIERMARKET NEWSWIRE
SEC Form 4 history

CASTLE BIOSCIENCES I (CSTL) insider trades

CASTLE BIOSCIENCES I (CSTL) insider trading activity (SEC Form 4). Over the trailing 90 days, CSTL insiders filed 0 purchases totalling $0 and 14 sales totalling $4.5M — net SELLING of $4.5M. Most recent filing: Aug 6, 2026. Insider transactions are a Pro-tier alertable signal in the live Top Tier Newswire terminal — Form 4 filings reach the wire within minutes of acceptance by the SEC. Data shown publicly here is delayed 4 hours.

Public view, delayed 4h. Real-time alerting on insider filings is a Pro feature.Open in the live terminal →
Buys (90d)
0
$0
Sells (90d)
14
$4.5M
Net (90d)
-$4.5M
net selling
Most recent
Aug 6, 2026

Recent transactions

FiledInsiderRoleTypeSharesPriceValue
Aug 6, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$31.07$1.2Mfiling
Aug 5, 2026Oelschlager Kristen MCOOS Sale—$29.77$256Kfiling
Aug 4, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$30.28$867Kfiling
Aug 4, 2026Juvenal Tobin WChief Commercial OfficerS Sale—$29.21$556Kfiling
Jul 29, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$24.16$238Kfiling
Jul 16, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$22.92$96Kfiling
Jul 6, 2026Oelschlager Kristen MCOOS Sale—$24.42$210Kfiling
Jul 6, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$24.29$239Kfiling
Jun 18, 2026Oelschlager Kristen MCOOS Sale—$20.71$178Kfiling
Jun 17, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$20.66$86Kfiling
Jun 3, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$20.86$205Kfiling
May 22, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$20.15$84Kfiling
May 11, 2026Maetzold Derek JPres, Chief Exec. OfficerS SaleOE—$22.15$218Kfiling
Aug 6, 2026Juvenal Tobin WChief Commercial OfficerS Sale—$38.39$50Kfiling