OELSCHLAGER KRISTEN M (Chief Operating Officer) sold 23.7% of their position (4.15K shares) of CASTLE BIOSCIENCES INC on the open market
Open‑market sale worth $149.3K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 2 sales
Filed: 10/5/2026ACC: 0001628280-26-064912
Officer· Chief Operating Officer
Since Apr 2021
-4.15K
Net shares
Net seller
$149.3K
Total sold
2
Open market trades
0B · 2S
4
Total transactions
4.15K acquired · 8.31K disposed
Non-Derivative Transactions3
Common Stock
Direct
Shares
+4.15K
Price / share
$3.38
Trade value
$14.04K
% of position
31.1%
10/1/2026
13.36K→17.51K
Common Stock
Direct
Shares
−2.81K
Price / share
$35.75
Trade value
$100.35K
% of position
16.0%
10/1/2026
17.51K→14.70K
Common Stock
Direct
Shares
−1.35K
Price / share
$36.38
Trade value
$48.97K
% of position
9.2%
10/1/2026
14.70K→13.36K
Total
Net shares
+0.00
Net value
-$135.28K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 10/1/2026 | M · Option Exercise | +4.15K | $3.38 | $14.04K | 31.1% | 13.36K | 17.51K |
| Common Stock Direct | 10/1/2026 | S · Sale | −2.81K | $35.75 | $100.35K | 16.0% | 17.51K | 14.70K |
| Common Stock Direct | 10/1/2026 | S · Sale | −1.35K | $36.38 | $48.97K | 9.2% | 14.70K | 13.36K |
| Total | +0.00 | -$135.28K | ||||||
Derivative Transactions1
Stock option (right to buy)
Direct
Converts to
Common Stock
4.15K shares
Shares
−4.15K
Strike price
3.38
Held after
8.30K
Exercisable
—
10/1/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Stock option (right to buy) Direct | Common Stock4.15K shares | 10/1/2026 | M · Option Exercise | −4.15K | 3.38 | — | 8.30K |
Non-Derivative Holdings (Post-Transaction)1
Common Stock
IndirectShares owned72.65K
Total
72.65K indirect72.65K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 72.65K | Indirect |
| Total | 72.65K | 72.65K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported