Summary
Updated Aug 31, 2026
Brian S. Williams has 2 SEC Form 4 filings on record, most recently on 4 November 2024. Lifetime open-market purchases: $90K.
Recent Transactions
2Every recent SEC Form 4 transaction Brian S. Williams has reported, most recent first.
- MSD Investment Corp.P - Open-market purchase
1.4K shares @ $24.27$34K
- MSD Investment Corp.P - Open-market purchase
2.3K shares @ $24.05$56K
Trading Pattern
InsiderAlpha's records for Brian S. Williams go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. The typical open-market purchase is $45K (2 buys totaling $90K). 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.
Most Active Insiders Right Now
Brian S. Williams has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Jack Jiajia Huang - $155.38M of COE open-market activity in the last 90 days
- Richard M. Schulze - $151.14M of BBY open-market activity in the last 90 days
- PLATINUM EQUITY, LLC - $150.00M of INGM open-market activity in the last 90 days
- ADVENT INTERNATIONAL, L.P. - $147.60M of LUNR open-market activity in the last 90 days
- PAULSON CO. INC. - $146.78M of AAMI open-market activity in the last 90 days
- Xiaodong Li - $146.73M of SE open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Brian S. Williams?
Brian S. Williams is a corporate insider. InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Brian S. Williams last file a Form 4?
The most recent primary Form 4 on record is dated 4 November 2024, one of 2 filings going back to 2024.
Has Brian S. Williams been buying or selling stock?
Recorded transactions: 2 open-market purchases ($90K) and 0 open-market sales across all tracked filings.
Where can I see all of Brian S. Williams'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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