Allegro Microsystems's top three insider shareholders as of October 03, 2026 are Electric Co., Ltd. Sanken (TenPercentOwner, 59.73Mn shares), Skna, L.P. Oep (TenPercentOwner, 17.65Mn shares), Ravi Vig (President And Ceo, 2.39Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Electric Co., Ltd. Sanken | TenPercentOwner | 59,732,782 | 0 | 59,732,782 | 72.7% | 09 Aug, 2024 |
| 2 | Skna, L.P. Oep | TenPercentOwner | 0 | 17,649,247 | 17,649,247 | 21.5% | 06 Feb, 2023 |
| 3 | Ravi Vig | President And Ceo | 2,392,613 | 0 | 2,392,613 | 2.9% | 15 Jun, 2022 |
| 4 | Vineet A Nargolwala | President And Ceo | 356,113 | 0 | 356,113 | 0.4% | 06 Nov, 2024 |
| 5 | Michael Doogue | President And Ceo | 279,076 | 0 | 279,076 | 0.3% | 19 May, 2026 |
| 6 | Max R. Glover | Svp Of Worldwide Sales | 266,339 | 0 | 266,339 | 0.3% | 19 Nov, 2024 |
| 7 | Derek D'Antilio | Evp, Cfo Treasurer | 238,813 | 0 | 238,813 | 0.3% | 19 May, 2026 |
| 8 | Reza Kazerounian | Director | 219,808 | 0 | 219,808 | 0.3% | 04 Aug, 2023 |
| 9 | Yoshihiro Suzuki | Director | 217,811 | 0 | 217,811 | 0.3% | 07 Aug, 2026 |
| 10 | Joanne Valente | Svp, Chro | 126,718 | 0 | 126,718 | 0.2% | 21 Nov, 2023 |
| 11 | Suman Narayan | Svp, Products | 123,084 | 0 | 123,084 | 0.1% | 03 Sep, 2024 |
| 12 | Sharon Briansky | Svp, Gc And Secretary | 79,753 | 0 | 79,753 | 0.1% | 19 May, 2026 |
| 13 | Troy Coleman | Svp, General Manager, Products | 77,476 | 0 | 77,476 | 0.1% | 26 May, 2026 |
| 14 | Thomas C. Jr. Teebagy | Svp Of Operations And Quality | 73,336 | 0 | 73,336 | 0.1% | 08 Dec, 2022 |
| 15 | Richard Madormo | Svp, Worldwide Sales | 69,687 | 0 | 69,687 | 0.1% | 04 Jun, 2026 |
| 16 | Joseph R Martin | Director | 39,430 | 0 | 39,430 | 0.0% | 07 Aug, 2026 |
| 17 | Erin Hagen | Svp, Chro | 31,052 | 0 | 31,052 | 0.0% | 12 Aug, 2026 |
| 18 | David J Aldrich | Director | 26,746 | 0 | 26,746 | 0.0% | 09 Aug, 2024 |
| 19 | Ian Kent | Svp, Global Operations | 25,392 | 0 | 25,392 | 0.0% | 19 May, 2026 |
| 20 | Mary G Puma | Director | 21,734 | 0 | 21,734 | 0.0% | 07 Aug, 2026 |
| 21 | Richard R. Lury | Director | 18,857 | 0 | 18,857 | 0.0% | 13 Aug, 2025 |
| 22 | Krishna G. Palepu | Director | 14,212 | 0 | 14,212 | 0.0% | 07 Aug, 2026 |
| 23 | Jennie Raubacher | Director | 13,976 | 0 | 13,976 | 0.0% | 18 Aug, 2026 |
| 24 | Roald Graham Webster | Vp, Chief Accounting Officer | 13,106 | 0 | 13,106 | 0.0% | 22 May, 2026 |
| 25 | Susan D Lynch | Director | 12,805 | 0 | 12,805 | 0.0% | 15 May, 2026 |
| 26 | Paul Iv Schorr | Director | 10,199 | 0 | 10,199 | 0.0% | 09 Aug, 2024 |
| 27 | Robert Willett | Director | 1,094 | 0 | 1,094 | 0.0% | 15 May, 2026 |
| 28 | Brian C White | Director | 594 | 0 | 594 | 0.0% | 18 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 30 Sep, 2026 | Robert Willett | Director | Acquired A | 619 | $0.00 | $0 | 4,870 | Direct |
| 17 Aug, 2026 | Jennie Raubacher | Director | Disposed S | 1,000 | $45.32 | $45.32K | 13,976 | Direct |
| 10 Aug, 2026 | Erin Hagen | Svp, Chro | Disposed S | 2,285 | $44.39 | $101.43K | 31,052 | Direct |
| 05 Aug, 2026 | Brian C White | Director | Acquired A | 4,251 | $0.00 | $0 | 4,251 | Direct |
| 05 Aug, 2026 | Jennie Raubacher | Director | Acquired A | 4,251 | $0.00 | $0 | 4,251 | Direct |
| 05 Aug, 2026 | Mary G Puma | Director | Acquired A | 4,251 | $0.00 | $0 | 21,734 | Direct |
| 05 Aug, 2026 | Joseph R Martin | Director | Acquired A | 4,251 | $0.00 | $0 | 39,430 | Direct |
| 05 Aug, 2026 | Krishna G. Palepu | Director | Acquired A | 4,251 | $0.00 | $0 | 14,212 | Direct |
| 05 Aug, 2026 | Robert Willett | Director | Acquired A | 4,251 | $0.00 | $0 | 4,251 | Direct |
| 05 Aug, 2026 | Yoshihiro Suzuki | Director | Acquired A | 4,251 | $0.00 | $0 | 217,811 | Direct |
| 17 Jun, 2026 | Brian C White | Director | Acquired A | 594 | $0.00 | $0 | 594 | Direct |
| 03 Jun, 2026 | Richard Madormo | Svp, Worldwide Sales | Disposed S | 5,000 | $52.72 | $263.60K | 69,687 | Direct |
| 22 May, 2026 | Troy Coleman | Svp, General Manager, Products | Disposed S | 4,500 | $45.72 | $205.74K | 77,476 | Direct |
| 21 May, 2026 | Roald Graham Webster | Vp, Chief Accounting Officer | Disposed S | 5,217 | $44.89 | $234.17K | 13,106 | Direct |
| 16 May, 2026 | Ian Kent | Svp, Global Operations | Disposed F | 2,345 | $43.10 | $101.07K | 28,034 | Direct |
| 16 May, 2026 | Derek D'Antilio | Evp, Cfo Treasurer | Disposed F | 37,840 | $43.10 | $1.63Mn | 238,813 | Direct |
| 16 May, 2026 | Sharon Briansky | Svp, Gc And Secretary | Disposed F | 13,942 | $43.10 | $600.90K | 79,753 | Direct |
| 16 May, 2026 | Troy Coleman | Svp, General Manager, Products | Disposed F | 9,670 | $43.10 | $416.78K | 81,976 | Direct |
| 16 May, 2026 | Erin Hagen | Svp, Chro | Disposed F | 5,815 | $43.10 | $250.63K | 33,337 | Direct |
| 16 May, 2026 | Roald Graham Webster | Vp, Chief Accounting Officer | Disposed F | 4,277 | $43.10 | $184.34K | 18,323 | Direct |