ALGM
Allegro Microsystems Inc
NASDAQ: ALGM · TECHNOLOGY · SEMICONDUCTORS
$33.66
+4.70% today
Updated 2026-11-03
Market cap
$6.16B
P/E ratio
206.44
P/S ratio
6.51x
EPS (TTM)
$0.16
Dividend yield
—
52W range
$22 – $72
Volume
2.9M
Allegro Microsystems Inc (ALGM) Insider transactions
Net insider activity
Net selling (38,259,325 shares)
Buy transactions
57
Sell transactions
43
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-30 | WILLETT, ROBERT | Director | Buy | 619 | — | — |
| 2026-08-17 | RAUBACHER, JENNIE | Director | Sale | 1,000 | $45.32 | $45320.00 |
| 2026-08-10 | HAGEN, ERIN | SVP, CHRO | Sale | 2,285 | $44.39 | $101431.15 |
| 2026-08-05 | WILLETT, ROBERT | Director | Buy | 4,251 | — | — |
| 2026-08-05 | WHITE, BRIAN C | Director | Buy | 4,251 | — | — |
| 2026-08-05 | SUZUKI, YOSHIHIRO | Director | Buy | 4,251 | — | — |
| 2026-08-05 | RAUBACHER, JENNIE | Director | Buy | 4,251 | — | — |
| 2026-08-05 | PUMA, MARY G | Director | Buy | 4,251 | — | — |
| 2026-08-05 | PALEPU, KRISHNA G. | Director | Buy | 4,251 | — | — |
| 2026-08-05 | MARTIN, JOSEPH R | Director | Buy | 4,251 | — | — |
| 2026-06-17 | WHITE, BRIAN C | Director | Buy | 594 | — | — |
| 2026-06-03 | MADORMO, RICHARD | SVP, Worldwide Sales | Sale | 5,000 | $52.72 | $263600.00 |
| 2026-05-22 | COLEMAN, TROY | SVP, General Manager, Products | Sale | 4,500 | $45.72 | $205740.00 |
| 2026-05-21 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Sale | 5,217 | $44.89 | $234165.04 |
| 2026-05-18 | KENT, IAN | SVP, Global Operations | Sale | 2,642 | $41.56 | $109801.52 |
| 2026-05-16 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Sale | 4,277 | $43.10 | $184338.70 |
| 2026-05-16 | MADORMO, RICHARD | SVP, Worldwide Sales | Sale | 5,439 | $43.10 | $234420.90 |
| 2026-05-16 | KENT, IAN | SVP, Global Operations | Sale | 2,345 | $43.10 | $101069.50 |
| 2026-05-16 | HAGEN, ERIN | SVP, CHRO | Sale | 5,815 | $43.10 | $250626.50 |
| 2026-05-16 | DOOGUE, MICHAEL | Director, President and CEO | Sale | 60,508 | $43.10 | $2.61M |
| 2026-05-16 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Sale | 37,840 | $43.10 | $1.63M |
| 2026-05-16 | COLEMAN, TROY | SVP, General Manager, Products | Sale | 9,670 | $43.10 | $416777.00 |
| 2026-05-16 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 13,942 | $43.10 | $600900.20 |
| 2026-05-14 | LYNCH, SUSAN D | Director | Sale | 16,711 | $45.46 | $759625.24 |
| 2026-05-13 | WILLETT, ROBERT | Director | Buy | 1,094 | — | — |
| 2026-05-13 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Buy | 4,756 | — | — |
| 2026-05-13 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Buy | 544 | — | — |
| 2026-05-13 | MADORMO, RICHARD | SVP, Worldwide Sales | Buy | 19,815 | — | — |
| 2026-05-13 | KENT, IAN | SVP, Global Operations | Buy | 8,492 | — | — |
| 2026-05-13 | HAGEN, ERIN | SVP, CHRO | Buy | 9,058 | — | — |
| 2026-05-13 | DOOGUE, MICHAEL | Director, President and CEO | Buy | 83,700 | — | — |
| 2026-05-13 | DOOGUE, MICHAEL | Director, President and CEO | Buy | 77,135 | — | — |
| 2026-05-13 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Buy | 30,438 | — | — |
| 2026-05-13 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Buy | 29,439 | — | — |
| 2026-05-13 | COLEMAN, TROY | SVP, General Manager, Products | Buy | 18,116 | — | — |
| 2026-05-13 | BRIANSKY, SHARON | SVP, GC and Secretary | Buy | 15,852 | — | — |
| 2026-05-13 | BRIANSKY, SHARON | SVP, GC and Secretary | Buy | 2,611 | — | — |
| 2026-05-11 | DOOGUE, MICHAEL | Director, President and CEO | Sale | 30,089 | $47.23 | $1.42M |
| 2026-05-11 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 8,948 | $47.54 | $425379.87 |
| 2026-03-24 | MADORMO, RICHARD | SVP, Worldwide Sales | Sale | 6,498 | $32.58 | $211704.84 |
| 2026-03-02 | HAGEN, ERIN | SVP, CHRO | Sale | 2,598 | $35.00 | $90930.00 |
| 2026-03-02 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 9,727 | $35.00 | $340445.00 |
| 2026-02-27 | HAGEN, ERIN | SVP, CHRO | Sale | 1,996 | $36.47 | $72794.12 |
| 2026-02-27 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Sale | 9,995 | $36.47 | $364517.65 |
| 2026-02-27 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 9,107 | $36.47 | $332132.29 |
| 2026-02-17 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 9,258 | $41.56 | $384762.48 |
| 2026-02-13 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Sale | 17,808 | $42.38 | $754703.04 |
| 2026-02-13 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 8,991 | $42.38 | $381038.58 |
| 2026-02-02 | KENT, IAN | SVP, Global Operations | Buy | 9,183 | — | — |
| 2025-12-10 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 27,873 | $30.00 | $836190.00 |
| 2025-11-11 | COLEMAN, TROY | SVP, General Manager, Products | Buy | 73,530 | — | — |
| 2025-08-22 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Sale | 8,266 | $32.81 | $271192.58 |
| 2025-08-12 | LURY, RICHARD R. | Director | Sale | 7,000 | $31.81 | $222672.80 |
| 2025-08-07 | SUZUKI, YOSHIHIRO | Director | Buy | 5,932 | — | — |
| 2025-08-07 | RAUBACHER, JENNIE | Director | Buy | 5,932 | — | — |
| 2025-08-07 | PUMA, MARY G | Director | Buy | 5,932 | — | — |
| 2025-08-07 | PALEPU, KRISHNA G. | Director | Buy | 5,932 | — | — |
| 2025-08-07 | MARTIN, JOSEPH R | Director | Buy | 5,932 | — | — |
| 2025-08-07 | LYNCH, SUSAN D | Director | Buy | 5,932 | — | — |
| 2025-08-07 | LURY, RICHARD R. | Director | Buy | 5,932 | — | — |
| 2025-08-04 | HAGEN, ERIN | SVP, CHRO | Sale | 5,043 | $31.18 | $157240.74 |
| 2025-06-11 | LURY, RICHARD R. | Director | Sale | 3,100 | $30.45 | $94395.00 |
| 2025-06-04 | LURY, RICHARD R. | Director | Sale | 6,849 | $27.60 | $189035.82 |
| 2025-05-16 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Sale | 4,948 | $27.51 | $136119.48 |
| 2025-05-16 | HAGEN, ERIN | SVP, CHRO | Sale | 4,899 | $27.51 | $134771.49 |
| 2025-05-16 | DOOGUE, MICHAEL | Director, President and CEO | Sale | 21,730 | $27.51 | $597792.30 |
| 2025-05-16 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Sale | 29,911 | $27.51 | $822851.61 |
| 2025-05-16 | BRIANSKY, SHARON | SVP, GC and Secretary | Sale | 18,712 | $27.51 | $514767.12 |
| 2025-05-15 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Buy | 9,765 | — | — |
| 2025-05-15 | MADORMO, RICHARD | SVP, Worldwide Sales | Buy | 37,557 | — | — |
| 2025-05-15 | HAGEN, ERIN | SVP, CHRO | Buy | 18,153 | — | — |
| 2025-05-15 | DOOGUE, MICHAEL | Director, President and CEO | Buy | 150,226 | — | — |
| 2025-05-15 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Buy | 65,098 | — | — |
| 2025-05-15 | BRIANSKY, SHARON | SVP, GC and Secretary | Buy | 35,053 | — | — |
| 2025-05-13 | WEBSTER, ROALD GRAHAM | VP, Chief Accounting Officer | Buy | 1,002 | — | — |
| 2025-05-13 | HAGEN, ERIN | SVP, CHRO | Buy | 1,222 | — | — |
| 2025-05-13 | DOOGUE, MICHAEL | Director, President and CEO | Buy | 18,489 | — | — |
| 2025-05-13 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Buy | 21,295 | — | — |
| 2025-05-13 | BRIANSKY, SHARON | SVP, GC and Secretary | Buy | 14,656 | — | — |
| 2025-02-27 | HAGEN, ERIN | SVP, CHRO | Buy | 4,594 | — | — |
| 2025-02-27 | D'ANTILIO, DEREK | EVP, CFO & Treasurer | Buy | 20,671 | — | — |
| 2025-02-27 | BRIANSKY, SHARON | SVP, GC and Secretary | Buy | 18,834 | — | — |
| 2025-01-31 | PALEPU, KRISHNA G. | Director | Buy | 4,029 | — | — |
| 2024-11-18 | GLOVER, MAX R. | SVP of Worldwide Sales | Sale | 2,644 | $19.24 | $50870.56 |
| 2024-11-18 | DOOGUE, MICHAEL | SVP, CTO | Buy | 15,000 | $19.00 | $285000.00 |
| 2024-11-18 | DOOGUE, MICHAEL | SVP, CTO | Sale | 2,319 | $19.24 | $44617.56 |
| 2024-11-05 | NARGOLWALA, VINEET A | Director, President and CEO | Buy | 4,800 | $19.89 | $95472.00 |
| 2024-11-05 | NARGOLWALA, VINEET A | Director, President and CEO | Buy | 200 | $19.87 | $3974.00 |
| 2024-08-30 | NARAYAN, SUMAN | SVP, Products | Sale | 714 | $24.53 | $17514.42 |
| 2024-08-08 | SUZUKI, YOSHIHIRO | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | SCHORR, PAUL IV | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | RAUBACHER, JENNIE | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | PUMA, MARY G | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | MARTIN, JOSEPH R | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | LYNCH, SUSAN D | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | LURY, RICHARD R. | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-08 | ALDRICH, DAVID J | Director | Buy | 6,873 | $26.92 | $185021.16 |
| 2024-08-07 | SANKEN, ELECTRIC CO., LTD. | 10% Owner | Sale | 10,017,315 | $23.16 | $232.00M |
| 2024-08-01 | NARGOLWALA, VINEET A | Director, President and CEO | Sale | 7,681 | $24.17 | $185649.77 |
| 2024-07-29 | SANKEN, ELECTRIC CO., LTD. | 10% Owner | Sale | 28,750,000 | $23.16 | $665.85M |
Frequently asked questions
Are ALGM insiders buying or selling?
Over the transactions on record, ALGM insiders have been net buyers, with about $914.65M in stock sold across 43 sales, against 11 open-market purchases.
Does insider selling at ALGM mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which ALGM insiders are selling the most?
Recent selling is concentrated in a few names. SANKEN, ELECTRIC CO., LTD. accounts for the largest share on record, with about $897.85M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.