Skip to main content
Signal8

GENACHOWSKI JULIUS

SEC insider (Form 3/4/5 filer). CIK 0001184231. Director at Mastercard Inc (MA) and 2 other issuers. 30 reported Form 4/5 transactions since Sep 2024; latest on Oct 12, 2026. Located in PURCHASE, NY.

Companies GENACHOWSKI JULIUS has filed insider reports for

  • Mastercard Inc (MA): Director
  • Sonos Inc (SONO): Director
  • MATTEL INC /DE/ (MAT): Director
GENACHOWSKI JULIUS profile photo

GENACHOWSKI JULIUS

CIK: 0001184231

Transaction Breakdown

Open Market Buys (P)1 (3.3%)

High conviction signal

Open Market Sales (S)7 (23.3%)

Position reduction

Option Exercises (M)2 (6.7%)

Derivative conversions

Awards (A)9 (30.0%)

Compensation grants

Other (G, F, J, C, D, …)11 (36.7%)

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

Companies & Roles (3)

Mastercard Inc logo
MA

Mastercard Inc

Director
Sonos Inc logo
SONO

Sonos Inc

Director
MATTEL INC /DE/ logo
MAT

MATTEL INC /DE/

Director

Discretionary Trading P&L

Holdings

Transaction History (30 total)

  • Mastercard Inc logo
    MA

    Mastercard Inc

    Oct 12, 2026
    Sale
    Direct
    370 shares at avg. $590.21$218K
  • Mastercard Inc logo
    MA

    Mastercard Inc

    Oct 9, 2026
    Sale
    Direct
    370 shares at avg. $585.00$216K
  • Mastercard Inc logo
    MA

    Mastercard Inc

    Oct 9, 2026
    Sale
    Direct
    1 shares at avg. $590.00$590
  • Sonos Inc logo
    SONO

    Sonos Inc

    Jul 29, 2026
    Exercise
    Direct
    19.9K shares at avg. $13.56$269K
  • Sonos Inc logo
    SONO

    Sonos Inc

    Jul 29, 2026
    Sale
    Direct
    19.9K shares at avg. $17.00$338K
  • Sonos Inc logo
    SONO

    Sonos Inc

    Jul 28, 2026
    Exercise
    Direct
    19.9K shares at avg. $13.56$269K
  • Sonos Inc logo
    SONO

    Sonos Inc

    Jul 28, 2026
    Sale
    Direct
    19.9K shares at avg. $16.50$328K
  • Mastercard Inc logo
    MA

    Mastercard Inc

    Jun 16, 2026
    Award
    Direct
    509 shares-
  • MATTEL INC /DE/ logo
    MAT

    MATTEL INC /DE/

    May 28, 2026
    Award

    Restricted Stock Units

    Direct
    11.8K shares-
  • Sonos Inc logo
    SONO

    Sonos Inc

    Mar 6, 2026
    Gift
    Indirect
    15.4K shares-

1-10 of 30