Summary
Updated Aug 30, 2026
Michael Wingertzahn has 8 SEC Form 4 filings on record going back to 2024, most recently on 14 July 2026. Lifetime open-market purchases: $40K.
Recent Transactions
8Every recent SEC Form 4 transaction Michael Wingertzahn has reported, most recent first.
- BBR ALO Fund, LLCP - Open-market purchase
339 shares @ $14.76$5K
- BBR ALO Fund, LLCP - Open-market purchase
339 shares @ $14.76$5K
- BBR ALO Fund, LLCP - Open-market purchase
368 shares @ $13.57$5K
- BBR ALO Fund, LLCP - Open-market purchase
368 shares @ $13.57$5K
- BBR ALO Fund, LLCP - Open-market purchase
364 shares @ $13.73$5K
- BBR ALO Fund, LLCP - Open-market purchase
340 shares @ $14.71$5K
- BBR ALO Fund, LLCP - Open-market purchase
352 shares @ $14.20$5K
- BBR ALO Fund, LLCP - Open-market purchase
346 shares @ $14.43$5K
Trading Pattern
InsiderAlpha's records for Michael Wingertzahn go back to 2024: 8 primary Form 4 filings, an average of 2.7 per year. The typical open-market purchase is $5K (8 buys totaling $40K). 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
Michael Wingertzahn has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Gang Ye - $117.60M of SE open-market activity in the last 90 days
- SVF Pauling (Cayman) Ltd - $116.40M of RLAY open-market activity in the last 90 days
- Albert L. Lord - $116.13M of APCX open-market activity in the last 90 days
- Brannin McBee - $112.75M of CRWV open-market activity in the last 90 days
- Richard Adam Norwitt - $110.99M of APH open-market activity in the last 90 days
- Brian Chesky - $109.51M of ABNB 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 Michael Wingertzahn?
Michael Wingertzahn is a corporate insider, tracked as Director. InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Michael Wingertzahn last file a Form 4?
The most recent primary Form 4 on record is dated 14 July 2026, one of 8 filings going back to 2024.
Has Michael Wingertzahn been buying or selling stock?
Recorded transactions: 8 open-market purchases ($40K) and 0 open-market sales across all tracked filings.
Where can I see all of Michael Wingertzahn'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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