Eddy W. Hartenstein - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Eddy W. Hartenstein has filed 3 SEC Form 4 filings across 1 company in the last 90 days.
Profile
Eddy W. Hartenstein is Director at SIRIUS XM HOLDINGS INC. ((SIRI)). SEC records also connect Hartenstein to Broadcom Inc. (AVGO). Hartenstein has reported 11 insider filings with the SEC since 2024. The most recent filing was in July 2026.
| Role | Director |
|---|---|
| Notability | 51/100 |
| Links | Wikipedia |
Board memberships
- SIRIUS XM HOLDINGS INC.
- Broadcom Inc.
Reported roles
- Director
- Director
Awards & honors
- Former CEO of Tribune Company
- Director at Sirius XM
- Director at Broadcom
Trading Pattern
InsiderAlpha's records for Eddy W. Hartenstein go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Eddy W. Hartenstein has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at SIRIUS XM HOLDINGS INC. (SIRI) - 10 filings, 2024 to 2026
- Director at Broadcom Inc. (AVGO) - 1 filing, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-14 | SIRI | SIRIUS XM HOLDINGS INC. | G - Bona-fide gift | 6.7K | $0.00 | |
| 2026-07-14 | SIRI | SIRIUS XM HOLDINGS INC. | G - Bona-fide gift | 6.7K | $0.00 | |
| 2026-06-02 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 6.8K | $0.00 | |
| 2026-05-28 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 83 | $0.00 | |
| 2026-03-02 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 104 | $0.00 | |
| 2025-11-25 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 98 | $0.00 | |
| 2025-08-27 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 92 | $0.00 | |
| 2025-05-29 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 7.8K | $0.00 | |
| 2025-05-28 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 86 | $0.00 | |
| 2025-05-09 | SIRI | SIRIUS XM HOLDINGS INC. | G - Bona-fide gift | 5.2K | $0.00 | |
| 2025-05-09 | SIRI | SIRIUS XM HOLDINGS INC. | G - Bona-fide gift | 5.2K | $0.00 | |
| 2025-04-21 | AVGO | Broadcom Inc. | A - Grant or award | 1.6K | $0.00 | |
| 2024-11-25 | SIRI | SIRIUS XM HOLDINGS INC. | A - Grant or award | 66 | $0.00 |
Companies - Last 90 Days
- SIRIUS XM HOLDINGS INC. (SIRI) - 3 filings, last 2026-07-14
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Eddy W. Hartenstein has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- BERKSHIRE HATHAWAY INC - $106.45M of SIRI open-market activity in the last 12 months
- Scott Andrew Greenstein - $619K of SIRI open-market activity in the last 12 months
- Kristina Salen - $161K of SIRI open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Electrum Strategic Resources L.P.
- Ariel Emanuel
- Retirement System Of The State Of Hawaii Employees'
- Endeavor Blockchain, LLC
- Energy Holding Corp
- Patrick G. Enright
- Equinox Partners Investment Management LLC
- Equitable Holdings, Inc.
Frequently Asked Questions
Who is Eddy W. Hartenstein?
Eddy W. Hartenstein is Director at SIRIUS XM HOLDINGS INC. ((SIRI)). SEC records also connect Hartenstein to Broadcom Inc. (AVGO). Hartenstein has reported 11 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Eddy W. Hartenstein submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Where can I see all of Eddy W. Hartenstein's SEC 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.
Learn More
Open the live Eddy W. Hartenstein profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.