Erin Hagen insider trades: Allegro Microsystems (ALGM) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Erin reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | ALGM | ↓ Sell10b5-1 | 2,285 | $44.39 | $101K | Direct | Aug 12, 2026 (2d) |
| Mar 2, 2026 | ALGM | ↓ Sell | 2,598 | $35.00 | $91K | Direct | Mar 3, 2026 (1d) |
| Aug 4, 2025 | ALGM | ↓ Sell | 5,043 | $31.18 | $157K | Direct | Aug 5, 2025 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ALGM insiders
Open-market trades in the last 12 months
About Erin Hagen's insider trades
Erin Hagen is SVP, CHRO at Allegro Microsystems (ALGM). Since Aug 4, 2025, Erin has reported no open-market purchases and 3 sales worth $350K on SEC Form 4. In the last 12 months: 2 sales ($192K).
1 sale (29% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.
Their filings also include grants and awards (6 filings), shares withheld for taxes (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ALGM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.