Summary
Updated Aug 31, 2026
Gregory B. Maffei is Director of SIRIUS XM HOLDINGS INC. (SIRI). 18 SEC Form 4 filings on record going back to 2024, most recently on 28 August 2026. Most recent open-market trade: sold $363K of Z on 3 March 2026. Lifetime open-market sales: $31.25M.
Recent Transactions
20Every recent SEC Form 4 transaction Gregory B. Maffei has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Gregory B. Maffei go back to 2024: 18 primary Form 4 filings, an average of 6.0 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Gregory B. Maffei files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Scott Andrew Greenstein - $619K of SIRI open-market activity in the last 12 months
- Jonelle Procope - $500K of SIRI open-market activity in the last 12 months
- Kristina Salen - $161K of SIRI open-market activity in the last 12 months
- GOLDMAN SACHS GROUP INC - $21K of QVCGP open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Gregory B. Maffei?
Gregory B. Maffei is a corporate insider, tracked as Director of SIRIUS XM HOLDINGS INC. (SIRI). InsiderAlpha holds 18 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Gregory B. Maffei submitted recently?
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Gregory B. Maffei been buying or selling stock?
Recorded transactions: 0 open-market purchases and 12 open-market sales ($31.25M) across all tracked filings.
Where can I see all of Gregory B. Maffei'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.
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