Summary
Updated Aug 31, 2026
Derek M. Meisner is Chief Legal Officer & Corp Sec of Acumen Pharmaceuticals, Inc. (ABOS). 5 SEC Form 4 filings on record, most recently on 11 March 2026. Most recent open-market trade: sold $7K of ABOS on 11 March 2026. Lifetime open-market sales: $105K.
Recent Transactions
12Every recent SEC Form 4 transaction Derek M. Meisner has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Derek M. Meisner go back to 2026: 5 primary Form 4 filings, an average of 5.0 per year. 12 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 Derek M. Meisner 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.
- Derrell Porter - $75K of ABOS open-market activity in the last 12 months
- Daniel Joseph Oconnell - $22K of ABOS open-market activity in the last 12 months
- Nathan B. Fountain - $14K of ABOS open-market activity in the last 12 months
- Matt Zuga - $8K of ABOS open-market activity in the last 12 months
- Eric Siemers - $6K of ABOS open-market activity in the last 12 months
- Russell Barton - $5K of ABOS 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 Derek M. Meisner?
Derek M. Meisner is a corporate insider, tracked as Chief Legal Officer & Corp Sec of Acumen Pharmaceuticals, Inc. (ABOS). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Derek M. Meisner last file a Form 4?
The most recent primary Form 4 on record is dated 11 March 2026, one of 5 filings going back to 2026.
Has Derek M. Meisner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($105K) across all tracked filings.
Where can I see all of Derek M. Meisner'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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