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Juvenal Tobin W

SEC insider (Form 3/4/5 filer). CIK 0001856542. Chief Commercial Officer at CASTLE BIOSCIENCES INC (CSTL). 47 reported Form 4/5 transactions since Sep 2024; latest on Oct 12, 2026. Located in FRIENDSWOOD, TX.

Companies Juvenal Tobin W has filed insider reports for

  • CASTLE BIOSCIENCES INC (CSTL): Officer, Chief Commercial Officer
Juvenal Tobin W profile photo

Juvenal Tobin W

CIK: 0001856542

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)21 (44.7%)

Position reduction

Option Exercises (M)14 (29.8%)

Derivative conversions

Awards (A)3 (6.4%)

Compensation grants

Other (G, F, J, C, D, …)9 (19.1%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CASTLE BIOSCIENCES INC logo
CSTL

CASTLE BIOSCIENCES INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (47 total)

  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Oct 12, 2026
    Sale
    Direct
    3.3K shares at avg. $33.64$111K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Sep 30, 2026
    Sale
    Direct
    1K shares at avg. $34.20$35K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Sep 29, 2026
    Sale
    Direct
    5.5K shares at avg. $35.50$197K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Sep 15, 2026
    Sale
    Direct
    3.3K shares at avg. $35.14$116K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Sep 14, 2026
    Sale
    Direct
    3.3K shares at avg. $32.32$107K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Aug 31, 2026
    Sale
    Direct
    1.7K shares at avg. $32.81$57K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Aug 25, 2026
    Sale
    Direct
    9.1K shares at avg. $35.04$317K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Aug 17, 2026
    Sale
    Direct
    1.7K shares at avg. $29.59$51K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Aug 3, 2026
    Sale
    Direct
    1.7K shares at avg. $28.25$49K
  • CASTLE BIOSCIENCES INC logo
    CSTL

    CASTLE BIOSCIENCES INC

    Jul 31, 2026
    Sale
    Direct
    8.1K shares at avg. $28.84$235K

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