Updated Jul 16, 2026
GENACHOWSKI JULIUS has filed 2 SEC Form 4 filings across 2 companies in the last 90 days — active on both sides. Lifetime open-market purchases: $250K. Lifetime open-market sales: $352K.

Julius Genachowski is an American technology executive, investor, and public servant who has served as a director for Sonos Inc., Mastercard Inc., and Mattel Inc. He was the 20th Chairman of the U.S. Federal Communications Commission from 2009 to 2013 under President Barack Obama, where he led policy initiatives on broadband, wireless spectrum, and media, among other digital policy priorities. In addition to his public-sector leadership, Genachowski has been involved in the technology and startup ecosystem and has held board and advisory roles related to innovation and growth across tech and consumer sectors.
| Role | Director |
|---|---|
| Notability | 85/100 |
| Links | Wikipedia |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-18 | MA | Mastercard Inc | A — Grant or award | 509 | $0.00 | |
| 2026-03-10 | SONO | Sonos Inc | G — Bona-fide gift | 15.4K | $0.00 | |
| 2026-03-10 | SONO | Sonos Inc | G — Bona-fide gift | 15.4K | $0.00 | |
| 2026-03-06 | SONO | Sonos Inc | A — Grant or award | 4.8K | — | |
| 2026-03-06 | SONO | Sonos Inc | A — Grant or award | 12.7K | — | |
| 2025-09-02 | SONO | Sonos Inc | A — Grant or award | 5.9K | — | |
| 2025-08-08 | SONO | Sonos Inc | P — Open-market purchase | 22.9K | $10.95 | $250K |
| 2025-07-07 | MA | Mastercard Inc | S — Open-market sale | 312 | $570.67 | $178K |
| 2025-06-24 | MA | Mastercard Inc | A — Grant or award | 458 | $0.00 | |
| 2025-06-24 | MA | Mastercard Inc | S — Open-market sale | 310 | $561.00 | $174K |
| 2025-02-14 | MA | Mastercard Inc | G — Bona-fide gift | 180 | $0.00 |
Julius Genachowski is an American technology executive, investor, and public servant who has served as a director for Sonos Inc., Mastercard Inc., and Mattel Inc. He was the 20th Chairman of the U.S. Federal Communications Commission from 2009 to 2013 under President Barack Obama, where he led policy initiatives on broadband, wireless spectrum, and media, among other digital po…
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 1 open-market purchases ($250K) and 2 open-market sales ($352K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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