ALLEGRO MICROSYSTEMS, INC. (ALGM)
$35.77-$1.82 (-4.84%) Today
Richard Madormo - OfficerAllegro Microsystems Inc is a designer, developer, fabless manufacturer, and marketer of sensor ICs and application-specific analog power ICs for automotive and industrial markets. Its Sensor IC allows customers to precisely measure motion, speed, position, and current, and Power ICs include high-temperature and high-voltage capable motor drivers, power management, and LED driver ICs. Its products are divided into three categories: SENSE, which includes Current Sensors, Switches, and Latches, and Interface ICs among others; REGULATE, which includes Regulators, ClearPower Modules, and LED Drivers; and DRIVE, which includes BLDC Drivers, Brush DC, and others. Product-wise, the firm derives the majority of its revenue from sales of Magnetic sensors.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 8,285 | $410K |
| Grant or award | 8 | 30,351 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
55 Form 4 filings on record, the earliest from Nov 6, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jennie Raubacher - Director | Open-market sale | Common Stock | 1,000 | $45.32 | $45K | |
| Erin Hagen - Officer | Open-market sale | Common Stock | 2,285 | $44.39 | $101K | |
| Yoshihiro Suzuki - Director | Grant or award | Common Stock | 4,251 | $0.00 | - | |
| Joseph R. Martin - Director | Grant or award | Common Stock | 4,251 | $0.00 | - | |
| Mary G. Puma - Director | Grant or award | Common Stock | 4,251 | $0.00 | - | |
| Krishna G. Palepu - Director | Grant or award | Common Stock | 4,251 | $0.00 | - | |
| Jennie Raubacher - Director | Grant or award | Deferred Stock Units | 4,251 | $0.00 | - | |
| Robert Willett - Director | Grant or award | Deferred Stock Units | 4,251 | $0.00 | - | |
| Brian C. White - Director | Grant or award | Deferred Stock Units | 4,251 | $0.00 | - | |
| Brian C. White | Grant or award | Common Stock | 594 | $0.00 | - | |
| Richard Madormo - Officer | Open-market sale | Common Stock | 5,000 | $52.72 | $264K | |
| Troy Coleman - Officer | Open-market sale | Common Stock | 4,500 | $45.72 | $206K | |
| Roald Graham Webster - Officer | Open-market sale | Common Stock | 5,217 | $44.89 | $234K | |
| Erin Hagen - Officer | Tax withholding / forfeiture | Common Stock | 5,815 | $43.10 | $251K | |
| Ian Kent - Officer | Open-market sale | Common Stock | 2,642 | $41.56 | $110K | |
| Ian Kent - Officer | Tax withholding / forfeiture | Common Stock | 2,345 | $43.10 | $101K | |
| Derek D'Antilio - Officer | Tax withholding / forfeiture | Common Stock | 37,840 | $43.10 | $1.63M | |
| Richard Madormo - Officer | Tax withholding / forfeiture | Common Stock | 5,439 | $43.10 | $234K | |
| Roald Graham Webster - Officer | Tax withholding / forfeiture | Common Stock | 4,277 | $43.10 | $184K | |
| Michael Doogue - Officer | Tax withholding / forfeiture | Common Stock | 60,508 | $43.10 | $2.61M | |
| Sharon Briansky - Officer | Tax withholding / forfeiture | Common Stock | 13,942 | $43.10 | $601K | |
| Troy Coleman - Officer | Tax withholding / forfeiture | Common Stock | 9,670 | $43.10 | $417K | |
| Robert Willett | Grant or award | Common Stock | 1,094 | $0.00 | - | |
| Ian Kent - Officer | Grant or award | Common Stock | 8,492 | $0.00 | - | |
| Richard Madormo - Officer | Grant or award | Common Stock | 19,815 | $0.00 | - | |
| Sharon Briansky - Officer | Grant or award | Common Stock | 15,852 | $0.00 | - | |
| Sharon Briansky - Officer | Grant or award | Common Stock | 2,611 | $0.00 | - | |
| Derek D'Antilio - Officer | Grant or award | Common Stock | 29,439 | $0.00 | - | |
| Derek D'Antilio - Officer | Grant or award | Common Stock | 30,438 | $0.00 | - | |
| Susan D. Lynch | Open-market sale | Common Stock | 16,711 | $45.46 | $760K | |
| Troy Coleman - Officer | Grant or award | Common Stock | 18,116 | $0.00 | - | |
| Michael Doogue - Officer | Grant or award | Common Stock | 77,135 | $0.00 | - | |
| Michael Doogue - Officer | Grant or award | Common Stock | 83,700 | $0.00 | - | |
| Erin Hagen - Officer | Grant or award | Common Stock | 9,058 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Raubacher Jennie | Director | 1,000 | $45K | View on EDGAR | |
| Hagen Erin | Officer | 2,285 | $101K | View on EDGAR | |
| - | - | - | - | View on EDGAR |
ALLEGRO MICROSYSTEMS, INC. (ALGM) had 11 insider filings in the last 90 days, with the most recent on 2026-08-18. The full record for ALGM runs to 55 Form 4 filings, the earliest from 2024-11-06. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of ALGM were filed in the last 90 days. 3 purchases are on record for this company.
3 insider sales of ALGM were filed in the last 90 days, totaling $410K.
This page tracks ALGM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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