Allegro Microsystems ALGM Insider Ownership

NASDAQ ALGM

$31.48 -0.21 (-0.66%)

At close: Oct 23, 2026 · 4:00 PM EDT

Insider Holdings by Owner

82.13Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

1.09%

▼-32.23% pp QoQ

Shares Held by Insiders

2.03Mn

filed for Sep 2026

▼-96.72% QoQ

Shares Outstanding

185.81Mn

185,806,543 shares

Direct Holdings

1.78Mn

Indirect: 252.80K

Net Shares Traded (QoQ)

-59.88Mn

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 11, 2026

Over the trailing 12 months, ALGM insiders sold $5.22 million worth of shares (125.85K shares) in open-market trades, with no open-market purchases.

By number of insiders, Allegro Microsystems saw 9 insiders sell on the open market over the past 12 months and none buy.
Sharon Briansky (SVP, GC and Secretary) led open-market sales of Allegro Microsystems stock over the past 12 months with $1.99 million (55.81K shares), most recently on May 11, 2026.
Jennie Raubacher (Director) made the most recent open-market trade by an insider of Allegro Microsystems, a sale of 1K shares for $45,320 on August 17, 2026.
Beyond open-market trades, insiders at Allegro Microsystems received 388.61K shares in stock awards and gave up 187.73K shares to cover taxes or exercise prices in the last 12 months.
Per Business Quant data, Allegro Microsystems insiders hold 2.03Mn shares in total based on their latest Form 4 filings.
Allegro Microsystems insiders hold 1.78Mn shares directly (87.55% of their total) and 252.8K shares (12.45%) indirectly, through entities such as trusts and partnerships.
Holdings in Allegro Microsystems stock are reported by 19 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
ALGM's largest insider holders by reported holdings are Michael Doogue (President and CEO, 531.87K shares), Vineet A. Nargolwala (President and CEO, 356.11K shares) and Max R. Glover (SVP of Worldwide Sales, 266.34K shares).
Of the shares held by ALGM insiders, 26.20% belong to Michael Doogue.
Institutions accounted for 79.75% of ALGM's outstanding shares in Q2 2026, insiders about 1.09% per their latest Form 4 filings, and other investors, including the public, about 19.16%.
A total of 43 Form 4 filings with transactions in Allegro Microsystems stock were made over the past 12 months, by 16 insiders.
The insider data for ALGM reflects Form 4 filings through October 1, 2026.

Form 4 Holdings

Insiders Holding ALGM

Insiders 28

Shares held 82.13Mn

Of outstanding 44.20%

#	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.

Form 4 Filings

440 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

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	Joseph R Martin	Director	Acquired A	4,251	$0.00	$0	39,430	Direct
05 Aug, 2026	Yoshihiro Suzuki	Director	Acquired A	4,251	$0.00	$0	217,811	Direct
05 Aug, 2026	Brian C White	Director	Acquired A	4,251	$0.00	$0	4,251	Direct
05 Aug, 2026	Krishna G. Palepu	Director	Acquired A	4,251	$0.00	$0	14,212	Direct
05 Aug, 2026	Mary G Puma	Director	Acquired A	4,251	$0.00	$0	21,734	Direct
05 Aug, 2026	Robert Willett	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
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	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
16 May, 2026	Ian Kent	Svp, Global Operations	Disposed F	2,345	$43.10	$101.07K	28,034	Direct
16 May, 2026	Michael Doogue	President And Ceo	Disposed F	60,508	$43.10	$2.61Mn	279,076	Direct

Showing 1 to 20 of 440 transactions