Summary
Updated Aug 31, 2026
Michael Grissinger is Director of Lipocine Inc. (LPCN). 3 SEC Form 4 filings on record, most recently on 7 August 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Michael Grissinger has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael Grissinger go back to 2026: 3 primary Form 4 filings, an average of 3.0 per year. 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Michael Grissinger 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.
- ORBIMED ADVISORS LLC - $5.67M of ACET open-market activity in the last 12 months
- RA CAPITAL MANAGEMENT, L.P. - $1.60M of ACET open-market activity in the last 12 months
- John W. Higuchi - $333K of LPCN open-market activity in the last 12 months
- Mahesh V. Patel - $101K of LPCN open-market activity in the last 12 months
- Richard Peters - $100K of APRE open-market activity in the last 12 months
- John P. Hamill - $30K of APRE 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 Grissinger?
Michael Grissinger is a corporate insider, tracked as Director of Lipocine Inc. (LPCN). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Michael Grissinger submitted recently?
3 primary Form 4 filings in the last 90 days, covering 3 companies.
Where can I see all of Michael Grissinger'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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