Roald Graham Webster 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 Roald reports to the SEC
Open-market buys and sales
2 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 21, 2026 | ALGM | ↓ Sell | 5,217 | $44.88 | $234K | Direct | May 22, 2026 (1d) |
| Aug 22, 2025 | ALGM | ↓ Sell | 8,266 | $32.81 | $271K | Direct | Aug 25, 2025 (3d) |
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 Roald Graham Webster's insider trades
Roald Graham Webster is VP, Chief Accounting Officer at Allegro Microsystems (ALGM). Since Aug 22, 2025, Roald has reported no open-market purchases and 2 sales worth $505K on SEC Form 4. In the last 12 months: 1 sale ($234K).
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.