Quick Takeaways
- Julius Genachowski has 3 issuer positions tracked on this page.
- Estimated disclosed ownership value: $8,655,088.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Julius Genachowski
- Location
- New York, NY
- Summary
- The estimated net worth of Julius Genachowski is at least $8,655,088 dollars as of 10 Mar 2026. Julius Genachowski is the Director of Mastercard Inc and owns shares of Mastercard Inc (MA) stock worth about $5.84M. Julius Genachowski is the Director of Sonos Inc and owns shares of Sonos Inc (SONO) stock worth about $2.52M. Julius Genachowski is the Director of MATTEL INC /DE/ and owns shares of MATTEL INC /DE/ (MAT) stock worth about $295K.
- Signature
- /s/ Rebecca Schuster by power of attorney
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Julius Genachowski and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: Mastercard Inc ($5,835,518).
- Past-year value change for that position: -$351,959.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Official SEC Source
Filed on Form 4
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
See Original FilingOwnership of Julius Genachowski
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| MA | Mastercard Inc | Director | $5,835,518 | -$351,959 | -5.7% | 31 Oct 2025 |
| SONO | Sonos Inc | Director | $2,524,577 | +$250,205 | +11% | 06 Mar 2026 |
| MAT | MATTEL INC /DE/ | Director | $294,993 | 28 May 2025 |
Insider Transactions Reported by Julius Genachowski:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.