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Fuchs Charles S.

SEC insider (Form 3/4/5 filer). CIK 0001719576. President, R&D at Erasca, Inc. (ERAS) and 1 other issuer. 2 reported Form 4/5 transactions since Sep 2024; latest on Aug 10, 2026. Located in SAN DIEGO, CA.

Companies Fuchs Charles S. has filed insider reports for

  • Erasca, Inc. (ERAS): Officer, President, R&D
  • CytomX Therapeutics, Inc. (CTMX): Director
Fuchs Charles S. profile photo

Fuchs Charles S.

CIK: 0001719576

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

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

Companies & Roles (2)

Erasca, Inc. logo
ERAS

Erasca, Inc.

Officer
CytomX Therapeutics, Inc. logo
CTMX

CytomX Therapeutics, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (2 total)

  • Erasca, Inc. logo
    ERAS

    Erasca, Inc.

    Aug 10, 2026
    Award

    Stock option (right to buy)

    Direct
    1.3M shares-
  • CytomX Therapeutics, Inc. logo
    CTMX

    CytomX Therapeutics, Inc.

    Jul 24, 2026
    Award

    Stock Option (Right to Buy)

    Direct
    118K shares-

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