Summary
Updated Aug 31, 2026
Erin Hagen is SVP, CHRO of ALLEGRO MICROSYSTEMS, INC. (ALGM). 5 SEC Form 4 filings on record going back to 2025, most recently on 12 August 2026. Most recent open-market trade: sold $101K of ALGM on 12 August 2026. Lifetime open-market sales: $350K.
Recent Transactions
6Every recent SEC Form 4 transaction Erin Hagen has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Erin Hagen 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.
- Sharon Briansky - $1.99M of ALGM open-market activity in the last 12 months
- Michael Doogue - $1.42M of ALGM open-market activity in the last 12 months
- Susan D. Lynch - $760K of ALGM open-market activity in the last 12 months
- Richard Madormo - $264K of ALGM open-market activity in the last 12 months
- Roald Graham Webster - $234K of ALGM open-market activity in the last 12 months
- Troy Coleman - $206K of ALGM 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 Erin Hagen?
Erin Hagen is a corporate insider, tracked as SVP, CHRO of ALLEGRO MICROSYSTEMS, INC. (ALGM). InsiderAlpha holds 5 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 Erin Hagen submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Erin Hagen been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($350K) across all tracked filings.
Where can I see all of Erin Hagen'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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