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Kastenmayer James Paul

SEC insider (Form 3/4/5 filer). CIK 0001798800. General Counsel at ArriVent BioPharma, Inc. (AVBP). 2 reported Form 4/5 transactions since Sep 2024; latest on Feb 2, 2026. Located in NEWTOWN SQUARE, PA.

Companies Kastenmayer James Paul has filed insider reports for

  • ArriVent BioPharma, Inc. (AVBP): Officer, General Counsel
Kastenmayer James Paul profile photo

Kastenmayer James Paul

CIK: 0001798800

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 (1)

ArriVent BioPharma, Inc. logo
AVBP

ArriVent BioPharma, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (2 total)

  • ArriVent BioPharma, Inc. logo
    AVBP

    ArriVent BioPharma, Inc.

    Feb 2, 2026
    Award

    Stock Option (right to buy)

    Direct
    130K shares-
  • ArriVent BioPharma, Inc. logo
    AVBP

    ArriVent BioPharma, Inc.

    Feb 3, 2025
    Award

    Stock Option (right to buy)

    Direct
    102K shares-

1-2 of 2