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Babler Martin profile photo

Martin Babler

CIK: 0001435618

Transaction Breakdown

Open Market Buys (P)1 (9.1%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)8 (72.7%)

Compensation grants

Other (G, F, J, C, D, …)2 (18.2%)

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

Companies & Roles (4)

MapLight Therapeutics, Inc. logo
MPLT

MapLight Therapeutics, Inc.

Director
Prelude Therapeutics Inc logo
PRLD

Prelude Therapeutics Inc

Director
ALUMIS INC. logo
ALMS

ALUMIS INC.

DirectorOfficer
89bio, Inc. logo
ETNB

89bio, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (11 total)

  • MapLight Therapeutics, Inc. logo
    MPLT

    MapLight Therapeutics, Inc.

    Jun 23, 2026
    Award(A)
    Direct
    7.9K shares-
  • Prelude Therapeutics Inc logo
    PRLD

    Prelude Therapeutics Inc

    Jun 9, 2026
    Award(A)

    Director Stock Option (Right to Buy)

    Direct
    38K shares-
  • ALUMIS INC. logo
    ALMS

    ALUMIS INC.

    Jan 26, 2026
    Award(A)

    Stock Option (Right to Buy)

    Direct
    745.9K shares-
  • 89bio, Inc. logo
    ETNB

    89bio, Inc.

    Oct 30, 2025
    Disposition(D)

    Stock Option (Right to Buy)

    Direct
    56.4K shares-
  • 89bio, Inc. logo
    ETNB

    89bio, Inc.

    Oct 30, 2025
    Disposition(D)

    Stock Option (Right to Buy)

    Direct
    67.7K shares-
  • ALUMIS INC. logo
    ALMS

    ALUMIS INC.

    Jul 29, 2025
    Award(A)

    Stock Option (Right to Buy)

    Direct
    150K shares-
  • ALUMIS INC. logo
    ALMS

    ALUMIS INC.

    Jul 29, 2025
    Award(A)

    Stock Option (Right to Buy)

    Direct
    662K shares-
  • Prelude Therapeutics Inc logo
    PRLD

    Prelude Therapeutics Inc

    Jun 12, 2025
    Award(A)

    Director Stock Option (Right to Buy)

    Direct
    38K shares-
  • ALUMIS INC. logo
    ALMS

    ALUMIS INC.

    Apr 1, 2025
    Purchase(P)
    Indirect
    15.7K shares at avg. $6.44$101K
  • ALUMIS INC. logo
    ALMS

    ALUMIS INC.

    Feb 18, 2025
    Award(A)

    Stock Option (Right to Buy)

    Direct
    523K shares-
  • 89bio, Inc. logo
    ETNB

    89bio, Inc.

    Feb 3, 2025
    Award(A)

    Stock Option (Right to Buy)

    Direct
    56.4K shares-

1-11 of 11

About Babler Martin

Babler Martin (SEC CIK 0001435618) files insider reports with the SEC as Director of MapLight Therapeutics, Inc. (MPLT), Director of Prelude Therapeutics Inc (PRLD) and President, CEO and Chairman of ALUMIS INC. (ALMS). Signal8 also holds filings tied to 1 other company.

Signal8 holds 10 ownership filings by Babler Martin (1 Form 3, 9 Form 4), filed between Feb 5, 2025 and Jun 25, 2026. Those filings report 11 transactions, from Feb 3, 2025 to Jun 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Babler Martin's filings is in WILMINGTON, DE.

Recent filings by Babler Martin

  • Jun 23, 2026: Grant or award of MPLT shares (Form 4, code A).
  • Jun 9, 2026: Grant or award of PRLD derivative securities (Form 4, code A).
  • Jan 26, 2026: Grant or award of ALMS derivative securities (Form 4, code A).
  • Oct 30, 2025: Disposition to issuer transactions of ETNB derivative securities (2 lines, Form 4, code D).
  • Jul 29, 2025: Grants or awards of ALMS derivative securities (2 lines, Form 4, code A).

Other insiders filing for MapLight Therapeutics, Inc. (MPLT)

How to read Form 4 transaction codes