MAETZOLD DEREK J Insider Trading Activity

Average Profitability
<0.0001%
Insider Buys Quantity
0
Insider Buys Sum
$0
Insider Sells Quantity
214
Insider Sells Sum
$88.75M

Insider Activity of MAETZOLD DEREK J

According to the SEC Form 4 filings, MAETZOLD DEREK J, being in a position of

  1. Pres. & Chief Exec. Officer at Castle Biosciences, Inc.,
    оver the last 12 months, has bought 0 shares, and sold 359188 shares for $10.98M,
    over all time since 2020-05-14, has bought 0 shares, and sold 2205364 shares for $101.16M.

Biography of MAETZOLD DEREK J

No biography is available at this moment.

Statistics of Insider Transactions Last Year

Amount of Insider Buys and Sells by Stocks

Buys
 $000
Sells
 $10,982,54442100

Comparison of Insiders on Amount of Buys and Sells

2026-10-19SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
14,496
0.0471%
$31.91$462,567+7.29%
2026-10-05SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
14,496
0.0463%
$35.57$515,565-8.98%
2026-09-21SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
14,496
0.0474%
$35.33$512,202-1.37%
2026-09-11SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
14,518
0.0473%
$32.02$464,870+7.89%
2026-08-28SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
17,726
0.0578%
$33.20$588,448+1.75%
2026-08-14SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
6,398
0.0213%
$30.02$192,068+13.96%
2026-08-05SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
3,575
0.0118%
$30.68$109,685+10%
2026-08-04SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
35,441
0.1157%
$31.11$1.1M+7.25%
2026-08-03SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
18,493
0.0608%
$30.35$561,318+10.04%
2026-07-31SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
10,153
0.036%
$30.15$306,133+19.39%
2026-07-27SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
9,002
0.0293%
$24.16$217,530+36.37%
2026-07-14SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
3,338
0.0109%
$22.92$76,507+43.08%
2026-07-01SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
9,002
0.0292%
$24.29$218,659+33.18%
2026-06-15SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
3,338
0.011%
$20.66$68,963+56.53%
2026-05-21SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
2,547
0.0083%
$20.20$51,439+54.31%
2026-05-20SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
791
0.0026%
$20.00$15,822+56.91%
2026-05-07SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
1,159
0.0044%
$22.08$25,591+57.98%
2026-04-21SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
3,338
0.0115%
$25.10$83,777+6.41%
2026-04-06SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
9,002
0.0306%
$25.03$225,320+1.29%
2026-03-26SaleCastle Biosciences, Inc.
CSTL
Pres. & Chief Exec. Officer
3,338
0.0116%
$25.55$85,289+0.57%
Total: 263
Company
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