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Musslewhite Robert W

SEC insider (Form 3/4/5 filer). CIK 0001390194. Director at COSTAR GROUP, INC. (CSGP) and 1 other issuer. 4 reported Form 4/5 transactions since Sep 2024; latest on Jun 23, 2026. Located in ARLINGTON, VA.

Companies Musslewhite Robert W has filed insider reports for

  • COSTAR GROUP, INC. (CSGP): Director
  • CARDINAL HEALTH INC (CAH): Director
Musslewhite Robert W profile photo

Musslewhite Robert W

CIK: 0001390194

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)4 (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)

COSTAR GROUP, INC. logo
CSGP

COSTAR GROUP, INC.

Director
CARDINAL HEALTH INC logo
CAH

CARDINAL HEALTH INC

Director

Discretionary Trading P&L

Holdings

Transaction History (4 total)

  • COSTAR GROUP, INC. logo
    CSGP

    COSTAR GROUP, INC.

    Jun 23, 2026
    Award
    Direct
    8.3K shares-
  • CARDINAL HEALTH INC logo
    CAH

    CARDINAL HEALTH INC

    Nov 5, 2025
    Award
    Direct
    1.1K shares-
  • COSTAR GROUP, INC. logo
    CSGP

    COSTAR GROUP, INC.

    Sep 9, 2025
    Award
    Direct
    3.1K shares-
  • CARDINAL HEALTH INC logo
    CAH

    CARDINAL HEALTH INC

    Mar 15, 2025
    Award
    Direct
    1K shares-

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