Insiders / Maetzold Derek J

Maetzold Derek J

CIK 1239501personinsider
Companies
1
First seen
Jan 7, 2026
Last activity
Jun 17, 2026

Companies

1View all →
CompanyRoleShares heldPeak heldTradesLatest
Castle Biosciences, Inc. · CSTLCEO149,885123,752110—

All securities held

4 positions · latest reported per filing
CompanySecuritySharesAs of
Castle Biosciences, Inc.Common Stock149,885Jun 15, 2026
Castle Biosciences, Inc.Stock option (right to buy)Derivative91,881Jun 15, 2026
Castle Biosciences, Inc.Restricted Stock UnitsDerivative83,961Mar 4, 2026
Castle Biosciences, Inc.Performance-Based Stock UnitDerivative62,219Jan 12, 2026

Activity

View all →
InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ΔPosition afterImpact
Mar 12, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$585.9K-23K
-24.47%
71,558
0.23% of shares
medium
Mar 3, 2026OtherCSTL
Castle Biosciences, Inc.
Common Stock
$525.0K-19K
-22.75%
64,655
0.21% of shares
low
Mar 4, 2026OtherCSTL
Castle Biosciences, Inc.
Common Stock
$505.1K-18K
-14.49%
105,821
0.35% of shares
low
Mar 17, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$483.6K-19K
-45.73%
22,129
0.07% of shares
medium
Mar 16, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$453.0K-17K
-29.90%
40,905
0.13% of shares
medium
Mar 11, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$451.9K-17K
-15.45%
94,737
0.31% of shares
medium
Mar 13, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$336.0K-13K
-18.45%
58,354
0.19% of shares
medium
Jan 20, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$160.7K-4K
-4.38%
87,715
0.29% of shares
medium
Apr 6, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$155.5K-6K
-22.44%
21,479
0.07% of shares
medium
Jun 1, 2026SellCSTL
Castle Biosciences, Inc.
Common Stock
$129.6K-6K
-22.44%
21,479
0.07% of shares
medium