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| Keyboard |
| Allegro Microsystems Inc | |
|---|---|
| Ticker | ALGM |
| CIK # | 0000866291 |
| CUSIP | 01749D105 |
| Sector | Manufacturing - Semiconductors & Related Devices |
| Address | 955 Perimeter Road, Manchester, NH 03103 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0000866291] | 10-K | |
| [0000866291] | 10-Q | |
| [0000866291] | 3 | |
| [0000866291] | 4 | |
| [0000866291] | 5 | |
| [0000866291] | 8-K | |
| [0000866291] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Madormo Richard
Common Stock
|
2026-03-24 | Disposed to issuer | 6,498 | $32.58 | 211,705 |
|
Hagen Erin
Common Stock
|
2026-03-02 | Sell | 2,598 | $35.00 | 90,930 |
|
Briansky Sharon
Common Stock
|
2026-03-02 | Sell | 9,727 | $35.00 | 340,445 |
|
D'Antilio Derek
Common Stock
|
2026-02-27 | Tax withheld | 9,995 | $36.47 | 364,518 |
|
Briansky Sharon
Common Stock
|
2026-02-27 | Tax withheld | 9,107 | $36.47 | 332,132 |
|
Hagen Erin
Common Stock
|
2026-02-27 | Tax withheld | 1,996 | $36.47 | 72,794 |
|
Briansky Sharon
Common Stock
|
2026-02-17 | Sell | 9,258 | $41.56 | 384,762 |
|
D'Antilio Derek
Common Stock
|
2026-02-13 | Tax withheld | 17,808 | $42.38 | 754,703 |
|
Briansky Sharon
Common Stock
|
2026-02-13 | Tax withheld | 8,991 | $42.38 | 381,039 |
|
Kent Ian
Common Stock
|
2026-02-02 | Grant | 9,183 | $0.00 | |
|
Briansky Sharon
Common Stock
|
2025-12-10 | Sell | 27,873 | $30.00 | 836,190 |
|
Coleman Troy
Common Stock
|
2025-11-11 | Grant | 73,530 | $0.00 | |
|
Common Stock
|
2025-08-22 | Sell | 8,266 | $32.81 | 271,207 |
|
Lury Richard R
Common Stock
|
2025-08-12 | Sell | 7,000 | $31.81 | 222,670 |
|
Lynch Susan D
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
|
Martin Joseph R
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
|
PUMA Mary G
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
|
Raubacher Jennie
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
|
Palepu Krishna G
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
|
Lury Richard R
Common Stock
|
2025-08-07 | Grant | 5,932 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 320 | 137,075,356 |
| 2025-12-31 | 295 | 136,788,579 |
| 2025-09-30 | 300 | 145,445,776 |
| 2025-06-30 | 283 | 152,280,743 |
| 2025-03-31 | 296 | 160,024,062 |
| 2024-12-31 | 263 | 140,451,112 |
| 2024-09-30 | 259 | 154,060,065 |
| 2024-06-30 | 278 | 113,945,361 |
| 2024-03-31 | 285 | 117,679,789 |
| 2023-12-31 | 296 | 103,159,563 |
| 2023-09-30 | 315 | 101,157,534 |
| 2023-06-30 | 357 | 97,776,441 |