Summary
Updated Aug 30, 2026
Mark Fitzsimmons has 1 SEC Form 4 filing on record, dated 15 November 2024. Lifetime open-market sales: $131K.
Recent Transactions
1Every recent SEC Form 4 transaction Mark Fitzsimmons has reported, most recent first.
Most Active Insiders Right Now
Mark Fitzsimmons has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Andreas Bechtolsheim - $393.27M of ANET open-market activity in the last 90 days
- WINDACRE PARTNERSHIP LLC - $391.22M of PRM open-market activity in the last 90 days
- Michael N. Intrator - $388.40M of CRWV open-market activity in the last 90 days
- AEROEQUITY GP, LLC - $384.00M of FLY open-market activity in the last 90 days
- Jayshree Ullal - $365.88M of ANET open-market activity in the last 90 days
- Jeffrey P. Bezos - $346.45M of AMZN 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 Mark Fitzsimmons?
Mark Fitzsimmons is a corporate insider. InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark Fitzsimmons last file a Form 4?
The only primary Form 4 on record is dated 15 November 2024.
Has Mark Fitzsimmons been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($131K) across all tracked filings.
Where can I see all of Mark Fitzsimmons'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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