Allegro MicroSystems Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

XTRA:6V5 Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
10 Aug 26	Sell€87,809	Erin Hagen	Individual	2,285	€38.43
03 Jun 26	Sell€227,091	Richard Madormo	Individual	5,000	€45.42
22 May 26	Sell€177,368	Troy Coleman	Individual	4,500	€39.42
21 May 26	Sell€202,108	Roald Webster	Individual	5,217	€38.74
18 May 26	Sell€94,341	Ian Kent	Individual	2,642	€35.71
14 May 26	Sell€650,771	Susan Lynch	Individual	16,711	€38.94
11 May 26	Sell€1,206,074	Michael Doogue	Individual	30,089	€40.08
11 May 26	Sell€360,977	Sharon Briansky	Individual	8,948	€40.34
02 Mar 26	Sell€77,854	Erin Hagen	Individual	2,598	€29.97

Insider Trading Volume

Insider Buying: 6V5 insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of 6V5?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	205	0.0000969%
State or Government	115,196	0.0544%
Individual Insiders	1,517,601	0.717%
Public Companies	59,732,782	28.2%
Institutions	150,264,335	71%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 98.16% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
32%	Sanken Electric Co., Ltd.	59,732,782	€1.8b	0%	no data
13.7%	FMR LLC	25,548,192	€758.5m	-6.72%	0.04%
7.45%	BlackRock, Inc.	13,889,324	€412.3m	11.2%	0.01%
7.27%	Invesco Ltd.	13,544,718	€402.1m	57.8%	0.1%
6.44%	Capital Research and Management Company	12,006,396	€356.4m	-3.45%	0.01%
5.37%	JP Morgan Asset Management	10,010,622	€297.2m	72.2%	0.03%
4.11%	Vanguard Portfolio Management, LLC	7,668,472	€227.7m	-3.18%	0.01%
3.38%	Vanguard Capital Management, LLC	6,308,836	€187.3m	1.26%	no data
3.05%	State Street Investment Management	5,676,421	€168.5m	8.58%	0.01%
2.27%	T. Rowe Price Group, Inc.	4,227,936	€125.5m	526%	0.01%
1.58%	ClearBridge Investments, LLC	2,946,239	€87.5m	2.88%	0.07%
1.46%	JPMorgan Chase & Co.	2,713,168	€80.5m	-4.4%	0.01%
1.42%	Geode Capital Management, LLC	2,644,929	€78.5m	7.66%	no data
1.14%	Dimensional Fund Advisors LP	2,123,963	€63.1m	-2.14%	0.01%
0.87%	Loomis, Sayles & Company, L.P.	1,619,931	€48.1m	-3.24%	0.06%
0.8%	Principal Global Investors, LLC	1,489,791	€44.2m	-16.8%	0.02%
0.77%	Massachusetts Financial Services Company	1,443,495	€42.9m	1,980%	0.01%
0.73%	Charles Schwab Investment Management, Inc.	1,360,525	€40.4m	-2.16%	0.01%
0.69%	Norges Bank Investment Management	1,294,958	€38.4m	-11.2%	no data
0.64%	AllianceBernstein L.P.	1,201,203	€35.7m	-30.3%	0.01%
0.63%	Northern Trust Global Investments	1,167,135	€34.6m	11.6%	no data
0.62%	Nomura Investment Management Business Trust	1,159,503	€34.4m	-44.3%	0.05%
0.6%	Adage Capital Management, L.P.	1,121,950	€33.3m	-23.4%	0.05%
0.59%	UBS Asset Management AG	1,104,242	€32.8m	41.5%	no data
0.52%	Voya Investment Management LLC	966,871	€28.7m	-33.7%	0.03%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/09/20 23:51
End of Day Share Price	2026/09/18 00:00
Earnings	2026/06/26
Annual Earnings	2026/03/27

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Allegro MicroSystems, Inc. is covered by 14 analysts. 10 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Thomas O'Malley	Barclays
Vivek Arya	BofA Global Research
Mark Lipacis	Evercore ISI