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CASTLE BIOSCIENCES INC

CSTL Net selling
CIK 0001447362 #2535 in the set updated 21 Sep 2026
Bought (12 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$17.50M
$8.61M on a plan · $6.06M straight out of an exercise
Sold at will
$2.83M
7 of 204 sales
Net
−$17.50M
−$2.83M against sales at will

By person

11 insiders · 206 transactions
9.7×

Derek J. Maetzold holds 9.7 times base salary in stock. $7.33M of shares against $751.35K in salary for 2025.

Salary from the company's own proxy. The shares are what Derek J. Maetzold last reported holding, valued at $35.14, the price Common Stock was last bought or sold at on the open market here, on 15 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
MAETZOLD DEREK J
Pres. & Chief Exec. Officer
—
$10.18M (167) scheduled
−$10.18M
208,715
0.6832%
$7.33M
−51.7%
Oelschlager Kristen M
Chief Operating Officer
—
$3.19M (14) scheduled
−$3.19M
158,654
0.5193%
$5.58M
−24.5%
Juvenal Tobin W
Chief Commercial Officer
—
$2.47M (15) scheduled
−$2.47M
58,584
0.1918%
$2.06M
−1.0%
Stokes Frank
Chief Financial Officer
—
$1.46M (6)
−$1.46M
35,177
0.1151%
$1.24M
−12.2%
Cole G Bradley
Director
—
$210.73K (2) scheduled
−$210.73K
32,976
0.1079%
$1.16M
+148.1%
Goldberg Ellen
Director
—
—
—
40,921
0.1339%
$1.44M
+120.2%
Olson Tiffany
Director
—
—
—
39,573
0.1295%
$1.39M
+129.6%
Caple Kim
Director
—
—
—
36,121
0.1182%
$1.27M
+162.1%
Harrison Miles
Director
—
—
—
35,631
0.1166%
$1.25M
+168.1%
Cotton Rodney
Director
—
—
—
32,998
0.1080%
$1.16M
—
BRADBURY DANIEL
Director
—
—
—
22,340
0.0731%
$785.07K
−43.2%

Individual transactions

0

Nothing of that kind in this period.

What was left out

Form 4 filings counted 83
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 52
Sales straight out of an exercise 145
Sales at will 7
Transactions with no price 0
Shares from compensation/vesting 688,682
History held since 31 Jul 2019