InsiderTrades

Form 4 for CSTL CASTLE BIOSCIENCES INC

Accepted 2025-03-06 00:00:00 ET · period of report 2025-03-04 · accession 0001447362-25-000040 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-03-06 2025-03-04 CSTL Oelschlager Kristen M COO F - Tax $22.23 -3,640 164.0K -2% -$80.9K
D 2025-03-06 2025-03-04 CSTL Oelschlager Kristen M COO M - OptEx — +13.8K 167.6K +9% —
D 2025-03-06 2025-03-04 CSTL Oelschlager Kristen M COO A - Grant $0.00 +47.8K 47.8K New $0
D 2025-03-06 2025-03-04 CSTL Oelschlager Kristen M COO M - OptEx $0.00 -13.8K 41.4K -25% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-03-04 F D 3,640 $22.23 163,964 D — —
2 Common Common Stock 2025-03-04 M A 13,811 — 167,604 D — — (F1) Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock. (F2) Includes 1,271 shares acquired on February 28, 2025, under the Issuer's employee stock purchase plan.
3 Derivative Restricted Stock Units 2025-03-04 A A 47,838 $0.00 47,838 D — · — to — 47,838 Common Stock (F1) Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock. (F3) The RSU's vest in four equal annual installments beginning on March 04, 2026.
4 Derivative Restricted Stock Units 2025-03-04 M D 13,811 $0.00 41,432 D — · — to — 13,811 Common Stock (F1) Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock. (F4) On March 4, 2024, the Reporting Person was granted 55,243 RSUs which vest in four equal installments beginning on March 4, 2025.