CIK 0000866291 · Large accelerated filer
ALLEGRO MICROSYSTEMS, INC.
Sign in to watch- Ticker
- ALGM
- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- FY end
- Mar 31
- Entity type
- operating
- EIN
- 462405937
- Phone
- (603) 626-2300
- Business address
- 955 PERIMETER ROAD, MANCHESTER, NH, 03103
- Former names
- ALLEGRO MICROSYSTEMS, INC., ALLEGRO MICROSYSTEMS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $45,320
- in 1 filing
Net −$45,320. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 82 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-03-02 | Briansky Sharon SVP, GC and Secretary | Sale | −9,727 | $35.00 | $340K | 84,180 |
| 2026-03-02 | Hagen Erin SVP, CHRO | Sale | −2,598 | $35.00 | $91K | 30,094 |
| 2026-02-27 | Briansky Sharon SVP, GC and Secretary | Shares withheld for taxes | −9,107 | $36.47 | $332K | 93,907 |
| 2026-02-27 | D'Antilio Derek EVP, CFO & Treasurer | Shares withheld for taxes | −9,995 | $36.47 | $365K | 216,776 |
| 2026-02-27 | Hagen Erin SVP, CHRO | Shares withheld for taxes | −1,996 | $36.47 | $73K | 32,692 |
| 2026-02-17 | Briansky Sharon SVP, GC and Secretary | Sale | −9,258 | $41.56 | $385K | 103,014 |
| 2026-02-13 | Briansky Sharon SVP, GC and Secretary | Shares withheld for taxes | −8,991 | $42.38 | $381K | 112,272 |
| 2026-02-13 | D'Antilio Derek EVP, CFO & Treasurer | Shares withheld for taxes | −17,808 | $42.38 | $755K | 226,771 |
| 2026-02-02 | Kent Ian SVP, Global Operations | Grant or award | +9,183 | 21,887 | ||
| 2025-12-10 | Briansky Sharon SVP, GC and Secretary | Sale | −27,873 | $30.00 | $836K | 121,263 |
| 2025-11-11 | Coleman Troy SVP, General Manager, Products | Grant or award | +73,530 | 73,530 | ||
| 2025-08-22 | Webster Roald Graham VP, Chief Accounting Officer | Sale | −8,266 | $32.81 | $271K | 17,300 |
| 2025-08-12 | Lury Richard R. Director | Sale | −7,000 | $31.81 | $223K | 18,857 |
| 2025-08-07 | Raubacher Jennie Director | Grant or award | +5,932 | 14,976 | ||
| 2025-08-07 | Lury Richard R. Director | Grant or award | +5,932 | 25,857 | ||
| 2025-08-07 | Lynch Susan D Director | Grant or award | +5,932 | 29,516 | ||
| 2025-08-07 | Palepu Krishna G. Director | Grant or award | +5,932 | 9,961 | ||
| 2025-08-07 | MARTIN JOSEPH R Director | Grant or award | +5,932 | 35,179 | ||
| 2025-08-07 | PUMA MARY G Director | Grant or award | +5,932 | 17,483 | ||
| 2025-08-07 | Suzuki Yoshihiro Director | Grant or award | +5,932 | 213,560 |
Page 3 of 13 · 252 trades