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Harlow John B. Jr.

SEC insider (Form 3/4/5 filer). CIK 0002095554. President and COO at Larimar Therapeutics, Inc. (LRMR) and 1 other issuer. 3 reported Form 4/5 transactions since Sep 2024; latest on Sep 29, 2026. Located in BALA CYNWYD, PA.

Companies Harlow John B. Jr. has filed insider reports for

  • Larimar Therapeutics, Inc. (LRMR): Officer, President and COO
  • Esperion Therapeutics, Inc. (ESPR): Officer, Chief Commercial Officer
Harlow John B. Jr. profile photo

Harlow John B. Jr.

CIK: 0002095554

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 (66.7%)

Compensation grants

Other (G, F, J, C, D, …)1 (33.3%)

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

Companies & Roles (2)

Larimar Therapeutics, Inc. logo
LRMR

Larimar Therapeutics, Inc.

Officer
Esperion Therapeutics, Inc. logo
ESPR

Esperion Therapeutics, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (3 total)

  • Larimar Therapeutics, Inc. logo
    LRMR

    Larimar Therapeutics, Inc.

    Sep 29, 2026
    Award
    Direct
    50K shares-
  • Esperion Therapeutics, Inc. logo
    ESPR

    Esperion Therapeutics, Inc.

    Jul 13, 2026
    Disposition
    Direct
    424.5K shares-
  • Esperion Therapeutics, Inc. logo
    ESPR

    Esperion Therapeutics, Inc.

    Dec 4, 2025
    Award
    Direct
    424.5K shares-

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