Allegro Microsystems, Inc. (ALGM) Insider Ownership

Historic Insider Ownership Trends

As of May 30, 2026, the three largest insider holders of ALGM 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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
David J Aldrich - 26,746 0 09 Aug, 2024
Joseph R Martin - 35,179 0 08 Aug, 2025
Paul Iv Schorr - 10,199 0 09 Aug, 2024
Krishna G. Palepu - 9,961 0 08 Aug, 2025
Paul V Jr Walsh Svp, Cfo Treasurer 0 684,851 23 Dec, 2021
Christopher Brown Svp And General Counsel 144,988 0 23 Nov, 2021
Reza Kazerounian - 219,808 0 04 Aug, 2023
Ravi Vig President And Ceo 2,392,613 0 15 Jun, 2022
Thomas C. Jr. Teebagy Svp Of Operations And Quality 73,336 0 08 Dec, 2022
Max R. Glover Svp Of Worldwide Sales 266,339 0 19 Nov, 2024
Michael Doogue Svp, Cto 0 246,086 19 Nov, 2024
Richard R. Lury - 18,857 0 13 Aug, 2025
Noriharu Fujita - 10,036 0 30 Sep, 2021
Yoshihiro Suzuki - 213,560 0 08 Aug, 2025
Skna, L.P. Oep - 0 17,649,247 06 Feb, 2023
Electric Co., Ltd. Sanken - 59,732,782 0 09 Aug, 2024
Sharon Briansky Svp, Gc And Secretary 84,180 0 03 Mar, 2026
Derek D'Antilio Evp, Cfo Treasurer 216,776 0 03 Mar, 2026
Joanne Valente Svp, Chro 126,718 0 21 Nov, 2023
Suman Narayan Svp, Products 123,084 0 03 Sep, 2024
Roald Graham Webster Vp, Chief Accounting Officer 17,300 0 25 Aug, 2025
Jennie Raubacher - 14,976 0 08 Aug, 2025
Erin Hagen Svp, Chro 30,094 0 03 Mar, 2026
Richard Madormo Svp, Worldwide Sales 60,311 0 25 Mar, 2026
Troy Coleman Svp, General Manager, Products 73,530 0 12 Nov, 2025
Ian Kent Svp, Global Operations 21,887 0 04 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
24 Mar, 2026 Richard Madormo Common Stock D 6,498 $32.58 60,311 D D
24 Mar, 2026 Richard Madormo Common Stock D 6,498 $32.58 60,311 D D
02 Feb, 2026 Ian Kent Common Stock A 9,183 $0.00 21,887 D A
02 Feb, 2026 Ian Kent Common Stock A 9,183 $0.00 21,887 D A
27 Feb, 2026 Erin Hagen Common Stock D 1,996 $36.47 32,692 D F
27 Feb, 2026 Sharon Briansky Common Stock D 9,107 $36.47 93,907 D F
27 Feb, 2026 Derek D'Antilio Common Stock D 9,995 $36.47 216,776 D F
27 Feb, 2026 Sharon Briansky Common Stock D 9,107 $36.47 93,907 D F
27 Feb, 2026 Erin Hagen Common Stock D 1,996 $36.47 32,692 D F
27 Feb, 2026 Derek D'Antilio Common Stock D 9,995 $36.47 216,776 D F
02 Mar, 2026 Erin Hagen Common Stock D 2,598 $35.00 30,094 D S
02 Mar, 2026 Erin Hagen Common Stock D 2,598 $35.00 30,094 D S
02 Mar, 2026 Sharon Briansky Common Stock D 9,727 $35.00 84,180 D S
02 Mar, 2026 Sharon Briansky Common Stock D 9,727 $35.00 84,180 D S
13 Feb, 2026 Derek D'Antilio Common Stock D 17,808 $42.38 226,771 D F
13 Feb, 2026 Sharon Briansky Common Stock D 8,991 $42.38 112,272 D F
13 Feb, 2026 Derek D'Antilio Common Stock D 17,808 $42.38 226,771 D F
13 Feb, 2026 Sharon Briansky Common Stock D 8,991 $42.38 112,272 D F
17 Feb, 2026 Sharon Briansky Common Stock D 9,258 $41.56 103,014 D S
17 Feb, 2026 Sharon Briansky Common Stock D 9,258 $41.56 103,014 D S