Insider Transactions Reported by 14 Insiders of CASTLE BIOSCIENCES INC

Symbol
CSTL on Nasdaq
Location
Friendswood, TX

Insiders trading volume in the past year

CASTLE BIOSCIENCES INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Derek J. Maetzold Pres. & Chief Exec. Officer, Director $13,048,605 -$6,415,945 -33% 13 Mar 2026
KABAKOFF DAVID S Director $10,282,139 17 Jun 2021
Kristen M. Oelschlager Chief Operating Officer $5,914,637 -$1,957,834 -25% 03 Mar 2026
Tobin W. Juvenal Chief Commercial Officer $3,397,994 -$1,213,070 -26% 12 Mar 2026
Frank Stokes Chief Financial Officer $2,918,709 -$717,367 -20% 05 Mar 2026
Mara G. Aspinall Director $1,101,224 23 May 2024
G. Bradley Cole Director $550,499 -$210,727 -28% 05 Mar 2026
Ellen Goldberg Director $548,077 21 May 2025
Tiffany Olson Director $533,539 21 May 2025
Rodney Cotton Director $489,622 21 May 2025
Kim Caple Director $451,549 21 May 2025
Daniel Bradbury Director $441,696 21 May 2025
Miles Harrison Director $441,696 21 May 2025
Bernhard E. Spiess Chief Business Officer $389,976 10 Dec 2021

Recent Insider Transactions by Companies or Individuals for CASTLE BIOSCIENCES INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Derek J. Maetzold CSTL Common Stock Sale -30.1% $456,408 $25.97 -17,575 40,779 16 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -18.4% $336,002 $25.45 -13,204 58,354 13 Mar 2026 Direct
Tobin W. Juvenal CSTL Common Stock Sale -19.4% $526,582 $25.24 -20,863 86,825 12 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -24.5% $585,942 $25.28 -23,179 71,558 12 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -7.72% $7,284 $26.11 -279 3,336 11 Mar 2026 By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold
Derek J. Maetzold CSTL Common Stock Sale -7.72% $7,284 $26.11 -279 3,336 11 Mar 2026 By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold
Derek J. Maetzold CSTL Common Stock Sale -7.72% $7,284 $26.11 -279 3,336 11 Mar 2026 By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold
Derek J. Maetzold CSTL Common Stock Sale -7.79% $7,363 $26.11 -282 3,336 11 Mar 2026 By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk
Derek J. Maetzold CSTL Common Stock Sale -2.58% $30,286 $26.11 -1,160 43,826 11 Mar 2026 By Derek Maetzold 2020 Irrevocable Trust
Derek J. Maetzold CSTL Common Stock Sale -2.56% $35,430 $26.11 -1,357 51,566 11 Mar 2026 By The Maetzold Descendants 2020 Trust
Derek J. Maetzold CSTL Common Stock Sale -15.4% $451,947 $26.11 -17,310 94,737 11 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Options Exercise 5.88% 6,226 112,047 11 Mar 2026 Direct
Derek J. Maetzold CSTL Stock option (right to buy) Options Exercise -30.4% -6,226 14,282 11 Mar 2026 Direct
Frank Stokes CSTL Common Stock Sale -9.08% $167,908 $27.98 -6,001 60,085 05 Mar 2026 Direct
G. Bradley Cole CSTL Common Stock Sale -27.7% $210,727 $28.47 -7,403 19,309 05 Mar 2026 Direct
G. Bradley Cole CSTL Common Stock Options Exercise 21.6% 4,748 26,712 05 Mar 2026 Direct
G. Bradley Cole CSTL Stock option (right to buy) Options Exercise -19.2% -4,748 20,000 05 Mar 2026 Direct
Tobin W. Juvenal CSTL Common Stock Tax liability -8.81% -10,399 107,688 04 Mar 2026 Direct
Tobin W. Juvenal CSTL Common Stock Options Exercise 27.9% 25,771 118,087 04 Mar 2026 Direct
Tobin W. Juvenal CSTL Restricted Stock Units Options Exercise -48.3% -25,771 27,621 04 Mar 2026 Direct
Kristen M. Oelschlager CSTL Common Stock Tax liability -14.8% -6,792 39,047 04 Mar 2026 Direct
Kristen M. Oelschlager CSTL Common Stock Options Exercise 128.4% 25,771 45,839 04 Mar 2026 Direct
Kristen M. Oelschlager CSTL Restricted Stock Units Options Exercise -48.3% -25,771 27,621 04 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Tax liability -14.5% -17,931 105,821 04 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Options Exercise 91.4% 59,097 123,752 04 Mar 2026 Direct
Derek J. Maetzold CSTL Restricted Stock Units Options Exercise -48.7% -59,097 62,218 04 Mar 2026 Direct
Frank Stokes CSTL Common Stock Tax liability -14.7% -10,732 62,286 04 Mar 2026 Direct
Frank Stokes CSTL Common Stock Options Exercise 62% 27,946 73,018 04 Mar 2026 Direct
Frank Stokes CSTL Stock option (right to buy) Options Exercise -20.3% -3,800 14,912 04 Mar 2026 Direct
Frank Stokes CSTL Restricted Stock Units Options Exercise -49.8% -24,146 24,372 04 Mar 2026 Direct
Tobin W. Juvenal CSTL Common Stock Tax liability -3.87% -3,716 92,316 03 Mar 2026 Direct
Tobin W. Juvenal CSTL Restricted Stock Units Award 48,367 48,367 03 Mar 2026 Direct
Kristen M. Oelschlager CSTL Common Stock Tax liability -10.8% -2,427 20,068 03 Mar 2026 Direct
Kristen M. Oelschlager CSTL Restricted Stock Units Award 48,367 48,367 03 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Tax liability -22.8% -19,043 64,655 03 Mar 2026 Direct
Derek J. Maetzold CSTL Restricted Stock Units Award 102,597 102,597 03 Mar 2026 Direct
Frank Stokes CSTL Common Stock Tax liability -6.88% -3,611 48,872 03 Mar 2026 Direct
Frank Stokes CSTL Common Stock Sale -11.8% $192,073 $27.44 -7,000 52,483 03 Mar 2026 Direct
Frank Stokes CSTL Restricted Stock Units Award 48,367 48,367 03 Mar 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -0.97% $31,035 $37.99 -817 83,698 04 Feb 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -3.65% $127,722 $39.91 -3,200 84,515 03 Feb 2026 Direct
Derek J. Maetzold CSTL Common Stock Sale -4.38% $160,732 $40.01 -4,017 87,715 20 Jan 2026 Direct
Derek J. Maetzold CSTL Common Stock Award 210.8% 62,219 91,732 12 Jan 2026 Direct
Derek J. Maetzold CSTL Performance-Based Stock Unit Award 62,219 62,219 12 Jan 2026 Direct
Kristen M. Oelschlager CSTL Common Stock Award 74.7% 9,207 21,530 12 Jan 2026 Direct
Kristen M. Oelschlager CSTL Performance-Based Stock Unit Award 9,207 9,207 12 Jan 2026 Direct
Tobin W. Juvenal CSTL Common Stock Award 10.6% 9,207 96,032 12 Jan 2026 Direct
Tobin W. Juvenal CSTL Performance-Based Stock Unit Award 9,207 9,207 12 Jan 2026 Direct
Frank Stokes CSTL Common Stock Award 16.1% 8,124 58,450 12 Jan 2026 Direct
Frank Stokes CSTL Performance-Based Stock Unit Award 8,124 8,124 12 Jan 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.