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 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Roald Graham Webster - Officer | Grant or award | Common Stock | 4,756 | $0.00 | - | |
| Roald Graham Webster - Officer | Grant or award | Common Stock | 544 | $0.00 | - | |
| Sharon Briansky - Officer | Open-market sale | Common Stock | 8,948 | $47.54 | $425K | |
| Michael Doogue - Officer | Open-market sale | Common Stock | 30,089 | $47.23 | $1.42M | |
| Richard Madormo - Officer | Derivative | Common Stock | 6,498 | $32.58 | $212K | |
| Ian Kent - Officer | Grant or award | Common Stock | 9,183 | $0.00 | - | |
| Sharon Briansky - Officer | Tax withholding / forfeiture | Common Stock | 9,107 | $36.47 | $332K | |
| Sharon Briansky - Officer | Open-market sale | Common Stock | 9,727 | $35.00 | $340K | |
| Derek D'Antilio - Officer | Tax withholding / forfeiture | Common Stock | 9,995 | $36.47 | $365K | |
| Erin Hagen - Officer | Open-market sale | Common Stock | 2,598 | $35.00 | $91K | |
| Erin Hagen - Officer | Tax withholding / forfeiture | Common Stock | 1,996 | $36.47 | $73K | |
| Sharon Briansky - Officer | Tax withholding / forfeiture | Common Stock | 8,991 | $42.38 | $381K | |
| Sharon Briansky - Officer | Open-market sale | Common Stock | 9,258 | $41.56 | $385K | |
| Derek D'Antilio - Officer | Tax withholding / forfeiture | Common Stock | 17,808 | $42.38 | $755K | |
| Sharon Briansky - Officer | Open-market sale | Common Stock | 27,873 | $30.00 | $836K | |
| Troy Coleman - Officer | Grant or award | Common Stock | 73,530 | $0.00 | - | |
| Roald Graham Webster - Officer | Open-market sale | Common Stock | 8,266 | $32.81 | $271K | |
| Richard R. Lury | Open-market sale | Common Stock | 7,000 | $31.81 | $223K | |
| Susan D. Lynch | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Mary G. Puma | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Richard R. Lury | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Jennie Raubacher | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Krishna G. Palepu | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Joseph R. Martin | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Yoshihiro Suzuki | Grant or award | Common Stock | 5,932 | $0.00 | - | |
| Erin Hagen - Officer | Open-market sale | Common Stock | 5,043 | $31.18 | $157K | |
| Michael Doogue - Officer | Tax withholding / forfeiture | Common Stock | 2,319 | $19.24 | $45K | |
| Michael Doogue - Officer | Open-market purchase | Common Stock | 15,000 | $19.00 | $285K | |
| Max R. Glover - Officer | Tax withholding / forfeiture | Common Stock | 2,644 | $19.24 | $51K | |
| Vineet A. Nargolwala - Officer | Open-market purchase | Common Stock | 4,800 | $19.89 | $95K | |
| Vineet A. Nargolwala - Officer | Open-market purchase | Common Stock | 200 | $19.87 | $4K |
This is as far as the anonymous view goes. Create a free account for all 55 ALGM filings on record.
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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