MAETZOLD DEREK J (Pres. & Chief Exec. Officer) sold 62.2% of their position (18.56K shares) of CASTLE BIOSCIENCES INC on the open market
Open‑market sale worth $616.1K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
Common Stock
Shares
+12.43K
Price / share
$2.39
Trade value
$29.70K
% of position
Common Stock
Shares
−11.47K
Price / share
$33.14
Trade value
$380.18K
% of position
Common Stock
Shares
−2.50K
Price / share
$33.14
Trade value
$83.02K
% of position
Common Stock
Shares
−2.13K
Price / share
$33.14
Trade value
$70.56K
% of position
Common Stock
Shares
−257.00
Price / share
$33.14
Trade value
$8.52K
% of position
Common Stock
Shares
−257.00
Price / share
$33.14
Trade value
$8.52K
% of position
Common Stock
Shares
−257.00
Price / share
$33.14
Trade value
$8.52K
% of position
Common Stock
Shares
−257.00
Price / share
$33.14
Trade value
$8.52K
% of position
Common Stock
Shares
−956.00
Price / share
$33.88
Trade value
$32.39K
% of position
Common Stock
Shares
−209.00
Price / share
$33.88
Trade value
$7.08K
% of position
Common Stock
Shares
−177.00
Price / share
$33.88
Trade value
$6K
% of position
Common Stock
Shares
−21.00
Price / share
$33.88
Trade value
$711.48
% of position
Common Stock
Shares
−21.00
Price / share
$33.88
Trade value
$711.48
% of position
Common Stock
Shares
−21.00
Price / share
$33.88
Trade value
$711.48
% of position
Common Stock
Shares
−21.00
Price / share
$33.88
Trade value
$711.48
% of position
Net shares
−6.13K
Net value
-$586.43K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/28/2026 | M · Option Exercise | +12.43K | $2.39 | $29.70K | 57.9% | 21.48K | 33.91K |
| Common Stock Direct | 8/28/2026 | S · Sale | −11.47K | $33.14 | $380.18K | 33.8% | 33.91K | 22.43K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −2.50K | $33.14 | $83.02K | 12.3% | 20.36K | 17.85K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −2.13K | $33.14 | $70.56K | 12.3% | 17.30K | 15.17K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −257.00 | $33.14 | $8.52K | 2.2% | 11.53K | 11.28K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −257.00 | $33.14 | $8.52K | 2.2% | 11.53K | 11.28K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −257.00 | $33.14 | $8.52K | 2.2% | 11.53K | 11.28K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −257.00 | $33.14 | $8.52K | 2.2% | 11.53K | 11.28K |
| Common Stock Direct | 8/28/2026 | S · Sale | −956.00 | $33.88 | $32.39K | 4.3% | 22.43K | 21.48K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −209.00 | $33.88 | $7.08K | 1.2% | 17.85K | 17.64K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −177.00 | $33.88 | $6K | 1.2% | 15.17K | 14.99K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −21.00 | $33.88 | $711.48 | 0.2% | 11.28K | 11.26K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −21.00 | $33.88 | $711.48 | 0.2% | 11.28K | 11.26K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −21.00 | $33.88 | $711.48 | 0.2% | 11.28K | 11.26K |
| Common Stock Indirect | 8/28/2026 | S · Sale | −21.00 | $33.88 | $711.48 | 0.2% | 11.28K | 11.26K |
| Total | −6.13K | -$586.43K | ||||||
Stock option (right to buy)
Common Stock
12.43K shares
Shares
−12.43K
Strike price
2.39
Held after
25.33K
Exercisable
—
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Stock option (right to buy) Direct | Common Stock12.43K shares | 8/28/2026 | M · Option Exercise | −12.43K | 2.39 | — | 25.33K |
Common Stock
IndirectCommon Stock
IndirectCommon Stock
IndirectCommon Stock
Indirect| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 40.94K | Indirect |
| Common Stock | 27.86K | Indirect |
| Common Stock | 11.96K | Indirect |
| Common Stock | 23.22K | Indirect |
| Total | 103.98K | 103.98K indirect |