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sellWeak cluster of 310b5-1 plan

Derek J Maetzold sold $72k of CSTL

Pres. & Chief Exec. Officer at CASTLE BIOSCIENCES INC. 2,565 shares at an average of $28.03, traded Jan 13, 2025, filed Jan 15, 2025.

Warning score
28
Value
$72k
2,565 shares
Holdings after
5,104
-3% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $72k at market
    +8
  • Share of holdings sold
    Sold 3.1% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +9.2%, 3m -15.0%, 6m -25.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

CSTLOct 13, 2026 · close 32.88
Since filing Jan 15, 2025: +31.4%SPY +33.8% · excess -2.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001447362-25-000014, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 13, 2025SOpen-market sale
Common Stock10b5-1
-556$27.51$15k81,248Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold Descendants 2020 Trust10b5-1
-285$27.51$7,84071,301Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By Derek Maetzold 2020 Irrevocable Trust10b5-1
-267$27.51$7,34560,780Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk10b5-1
-85$27.51$2,3385,175Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold10b5-1
-85$27.51$2,3385,169Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold10b5-1
-85$27.51$2,3385,169Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold10b5-1
-85$27.51$2,3385,169Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stock10b5-1
-399$28.65$11k80,849Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold Descendants 2020 Trust10b5-1
-204$28.65$5,84571,097Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By Derek Maetzold 2020 Irrevocable Trust10b5-1
-192$28.65$5,50160,588Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk10b5-1
-60$28.65$1,7195,115Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold10b5-1
-61$28.65$1,7485,108Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold10b5-1
-60$28.65$1,7195,109Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold10b5-1
-61$28.65$1,7485,108Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stock10b5-1
-31$29.48$91480,818Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold Descendants 2020 Trust10b5-1
-16$29.48$47271,081Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By Derek Maetzold 2020 Irrevocable Trust10b5-1
-15$29.48$44260,573Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk10b5-1
-5$29.48$1475,110Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold10b5-1
-4$29.48$1185,104Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold10b5-1
-5$29.48$1475,104Jan 15, 2025
Jan 13, 2025SOpen-market sale
Common Stockindirect: By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold10b5-1
-4$29.48$1185,104Jan 15, 2025

Related signals

Other insiders at CASTLE BIOSCIENCES INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 21, 2026
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Tobin W Juvenal
Chief Commercial Officer
$111k
3,288 shares
-6%
33Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Derek J Maetzold
Pres. & Chief Exec. Officer
$516k
14,496 shares
-49%
16Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Kristen M Oelschlager
Chief Operating Officer
$149k
4,153 shares
-24%
28Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Tobin W Juvenal
Chief Commercial Officer
$232k
6,577 shares
-11%
33Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Derek J Maetzold
Pres. & Chief Exec. Officer
$512k
14,496 shares
-48%
27Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Tobin W Juvenal
Chief Commercial Officer
$223k
6,600 shares
-10%
32Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Derek J Maetzold
Pres. & Chief Exec. Officer
$465k
14,518 shares
-48%
16Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Kristen M Oelschlager
Chief Operating Officer
$139k
4,152 shares
-24%
17Weak
CSTLsell 310b5-1
CASTLE BIOSCIENCES INC
Tobin W Juvenal
Chief Commercial Officer
$57k
1,730 shares
-3%
45Moderate
CSTLsell 410b5-1
CASTLE BIOSCIENCES INC
Derek J Maetzold
Pres. & Chief Exec. Officer
$616k
18,560 shares
-55%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Derek J Maetzold sold $72k of CSTL | InsiderTell