CIK 0000866291 · Large accelerated filer
ALLEGRO MICROSYSTEMS, INC.
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- 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 |
|---|---|---|---|---|---|---|
| 2026-08-17 | Raubacher Jennie Director | Sale | −1,000 | $45.32 | $45K | 13,976 |
| 2026-08-10 | Hagen Erin SVP, CHRO | Sale | −2,285 | $44.39 | $101K | 31,052 |
| 2026-06-03 | Madormo Richard SVP, Worldwide Sales | Sale | −5,000 | $52.72 | $264K | 69,687 |
| 2026-05-22 | Coleman Troy SVP, General Manager, Products | Sale | −4,500 | $45.72 | $206K | 77,476 |
| 2026-05-21 | Webster Roald Graham VP, Chief Accounting Officer | Sale | −5,217 | $44.89 | $234K | 13,106 |
| 2026-05-18 | Kent Ian SVP, Global Operations | Sale | −2,642 | $41.56 | $110K | 25,392 |
| 2026-05-14 | Lynch Susan D Director | Sale | −16,711 | $45.46 | $760K | 12,805 |
| 2026-05-11 | Briansky Sharon SVP, GC and Secretary | Sale | −8,948 | $47.54 | $425K | 75,232 |
| 2026-05-11 | Doogue Michael President and CEO | Sale | −30,089 | $47.23 | $1.4M | 252,797 |
| 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 |
| 2026-02-17 | Briansky Sharon SVP, GC and Secretary | Sale | −9,258 | $41.56 | $385K | 103,014 |
| 2025-12-10 | Briansky Sharon SVP, GC and Secretary | Sale | −27,873 | $30.00 | $836K | 121,263 |
| 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 |
| 2025-08-04 | Hagen Erin SVP, CHRO | Sale | −5,043 | $31.18 | $157K | 34,688 |
| 2025-06-11 | Lury Richard R. Director | Sale | −3,100 | $30.45 | $94K | 19,925 |
| 2025-06-04 | Lury Richard R. Director | Sale | −6,849 | $27.60 | $189K | 23,025 |
| 2024-08-07 | Sanken Electric Co., Ltd. 10% owner | Sale | −10,017,315 | $23.16 | $232.0M | 59,732,782 |
| 2024-07-29 | Sanken Electric Co., Ltd. 10% owner | Sale | −28,750,000 | $23.16 | $665.9M | 69,750,097 |
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