Summary
Updated Aug 31, 2026
Michael L. Speiser is Director of Snowflake Inc. (SNOW). 16 SEC Form 4 filings on record going back to 2025, most recently on 11 August 2026. Most recent open-market trade: sold $11.02M of SNOW on 11 August 2026. Lifetime open-market sales: $118.66M.
Recent Transactions
20Every recent SEC Form 4 transaction Michael L. Speiser has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael L. Speiser go back to 2025: 16 primary Form 4 filings, an average of 8.0 per year. 131 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Michael L. Speiser 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.
- Frank Slootman - $615.65M of SNOW open-market activity in the last 12 months
- David A. Duffield - $374.81M of WDAY open-market activity in the last 12 months
- Benoit Dageville - $153.74M of SNOW open-market activity in the last 12 months
- Christian Kleinerman - $48.12M of SNOW open-market activity in the last 12 months
- Mark Garrett - $25.00M of SNOW open-market activity in the last 12 months
- Vivek Raghunathan - $4.16M of SNOW 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 Michael L. Speiser?
Michael L. Speiser is a corporate insider, tracked as Director of Snowflake Inc. (SNOW). InsiderAlpha holds 16 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Michael L. Speiser submitted recently?
5 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Michael L. Speiser been buying or selling stock?
Recorded transactions: 0 open-market purchases and 173 open-market sales ($118.66M) across all tracked filings.
Where can I see all of Michael L. Speiser'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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