Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 10 years
- Director since
- 2023
10 years of board service in total across 3 boards, counting each seat separately. Longest: Sonos Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Mastercard Incorporated June 16, 202689.2%
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Mattel Inc. May 28, 202693.9%
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Sonos Inc. March 5, 202690.9%
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Mastercard Incorporated June 24, 202595.4%
-
Mattel Inc. May 28, 202598.4%
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Mastercard Incorporated June 18, 202497.6%
-
Mattel Inc. May 29, 202499.0%
-
Mastercard Incorporated June 27, 202396.4%
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Sonos Inc. March 9, 202373.0%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 12, 2026 | Mastercard Incorporated | Open-market sale | −370 | $590.21 | $218,378 |
| Oct 9, 2026 | Mastercard Incorporated | Open-market sale | −370 | $585.00 | $216,450 |
| Oct 9, 2026 | Mastercard Incorporated | Open-market sale | −1 | $590.00 | $590 |
| Jul 29, 2026 | Sonos Inc. | Option exercise | +19,855 | $13.56 | $269,234 |
| Jul 29, 2026 | Sonos Inc. | Open-market sale | −19,855 | $17.00 | $337,535 |
| Jul 28, 2026 | Sonos Inc. | Option exercise | +19,855 | $13.56 | $269,234 |
| Jul 28, 2026 | Sonos Inc. | Open-market sale | −19,855 | $16.50 | $327,608 |
| Jun 16, 2026 | Mastercard Incorporated | Grant or award | +509 | — | — |
| Mar 6, 2026 | Sonos Inc. | Gift | −15,427 | — | — |
| Mar 6, 2026 | Sonos Inc. | Gift | +15,427 | — | — |
| Mar 5, 2026 | Sonos Inc. | Grant or award | +12,725 | — | — |
| Mar 5, 2026 | Sonos Inc. | Grant or award | +4,772 | — | — |
| Nov 10, 2025 | Sonos Inc. | Gift | −77,057 | — | — |
| Nov 10, 2025 | Sonos Inc. | Gift | +77,057 | — | — |
| Nov 7, 2025 | Sonos Inc. | Gift | −1,550 | — | — |
Questions about Julius Genachowski
What boards is Julius Genachowski on?
Julius Genachowski sits on the boards of Mastercard Incorporated, Mattel Inc. and Sonos Inc.
How long has Julius Genachowski served on boards?
Our records show at least 10 years of board service across 3 boards, the earliest from 2023.
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