Allegro MicroSystems (ALGM) Institutional Ownership

$37.16 -0.03 (-0.08%)

As of 08/21/2026 04:00 PM Eastern

Current Institutional Ownership Percentage: 56.45%
Number of Institutional Buyers (last 12 months): 177
Total Institutional Inflows (last 12 months): $1.78B

Number of Institutional Sellers (last 12 months): 106
Total Institutional Outflows (last 12 months): $403.78M

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ALGM Institutional Buying and Selling by Quarter

Allegro MicroSystems Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/22/2026	Odyssean LLC	4,034	$281K	0.0%	N/A	0.002%
8/21/2026	Continuum Advisory LLC	500	$35K	0.0%	N/A	0.000%
8/21/2026	Nykredit A S	3,787	$264K	0.0%	N/A	0.002%
8/20/2026	Teza Capital Management LLC	3,019	$210K	0.4%	N/A	0.002%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	323,297	$22.51M	0.0%	-6.3%	0.173%
8/19/2026	Van ECK Associates Corp	70,504	$4.91M	0.0%	+68.8%	0.038%
8/19/2026	Braun Stacey Associates Inc.	366,493	$25.52M	0.7%	N/A	0.197%
8/19/2026	Hsbc Holdings PLC	26,862	$1.87M	0.0%	+46.3%	0.014%
8/19/2026	Wellington Management Group LLP	814,937	$56.74M	0.0%	+21.1%	0.437%
8/18/2026	United Capital Financial Advisors LLC	3,414	$238K	0.0%	N/A	0.002%
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8/18/2026	Public Employees Retirement System of Ohio	36,089	$2.51M	0.0%	N/A	0.019%
8/17/2026	Transamerica Financial Advisors LLC	386	$27K	0.0%	N/A	0.000%
8/17/2026	Corient Private Wealth LP	19,406	$1.35M	0.0%	N/A	0.010%
8/17/2026	Bank of America Corp DE	921,728	$64.17M	0.0%	N/A	0.494%
8/15/2026	Freestone Grove Partners LP	4,859	$338K	0.0%	N/A	0.003%
8/15/2026	Odyssean LLC	4,034	$281K	0.0%	N/A	0.002%
8/15/2026	Man Group plc	95,101	$6.62M	0.0%	N/A	0.051%
8/15/2026	First Bancorp Inc ME	700	$49K	0.0%	N/A	0.000%
8/15/2026	Jupiter Topco LLC	57,329	$3.99M	0.0%	N/A	0.031%
8/14/2026	Hsbc Holdings PLC	26,862	$1.87M	0.0%	N/A	0.014%
8/14/2026	Canada Pension Plan Investment Board	44,000	$3.06M	0.0%	N/A	0.024%
8/14/2026	Castleark Management LLC	141,900	$9.88M	0.3%	N/A	0.076%
8/14/2026	Legal & General Group Plc	164,734	$11.47M	0.0%	N/A	0.088%
8/14/2026	The Manufacturers Life Insurance Company	91,616	$6.38M	0.0%	N/A	0.049%
8/14/2026	S Squared Technology LLC	332,451	$23.15B	7.2%	N/A	0.178%
8/14/2026	Whalen Wealth Management Inc.	6,399	$445K	0.2%	N/A	0.003%
8/14/2026	Algert Global LLC	65,240	$4.54M	0.1%	+868.0%	0.035%
8/13/2026	Sanctuary Advisors LLC	4,698	$327K	0.0%	N/A	0.003%
8/13/2026	Meiji Yasuda Asset Management Co Ltd.	2,873	$200K	0.0%	N/A	0.002%
8/12/2026	Elevation Point Wealth Partners LLC	6,340	$441K	0.0%	N/A	0.003%
8/12/2026	Commerce Bank	15,646	$1.09M	0.0%	N/A	0.008%
8/12/2026	Quantbot Technologies LP	1,284	$89K	0.0%	N/A	0.001%
8/12/2026	Evolve Private Wealth LLC	8,428	$587K	0.0%	N/A	0.005%
8/12/2026	Rakuten Securities Inc.	439	$31K	0.0%	N/A	0.000%
8/12/2026	Callan Family Office LLC	4,138	$288K	0.0%	N/A	0.002%
8/11/2026	Allworth Financial LP	1,517	$106K	0.0%	N/A	0.001%
8/11/2026	Trillium Asset Management LLC	143,348	$9.98M	0.3%	N/A	0.077%
8/11/2026	Vise Technologies Inc.	4,496	$313K	0.0%	N/A	0.002%
8/11/2026	Lisanti Capital Growth LLC	107,865	$7.51M	1.7%	N/A	0.058%
8/10/2026	Csenge Advisory Group	17,210	$1.20M	0.0%	N/A	0.009%
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8/8/2026	Meeder Advisory Services Inc.	4,159	$290K	0.0%	N/A	0.002%
8/7/2026	BlackRock Inc.	13,889,324	$966.98M	0.0%	N/A	7.451%
8/7/2026	Deutsche Bank AG	88,759	$6.18M	0.0%	N/A	0.048%
8/7/2026	Perigon Wealth Management LLC	3,916	$273K	0.0%	N/A	0.002%
8/7/2026	Mitsubishi UFJ Asset Management Co. Ltd.	43,188	$3.01M	0.0%	N/A	0.023%
8/6/2026	Nippon Life Global Investors Americas Inc.	143,870	$10.02M	0.4%	N/A	0.077%
8/6/2026	Global Retirement Partners LLC	4,149	$289K	0.0%	N/A	0.002%
8/6/2026	Bank of New York Mellon Corp	716,952	$49.91M	0.0%	N/A	0.385%
8/6/2026	State of Wyoming	32,269	$2.25M	0.2%	N/A	0.017%
8/6/2026	GSA Capital Partners LLP	3,533	$246K	0.0%	N/A	0.002%
7/10/2026	Handelsbanken Fonder AB	59,900	$4.17M	0.0%	+49.8%	0.032%
7/10/2026	Fulton Bank N.A.	4,623	$322K	0.0%	N/A	0.002%
7/7/2026	Harbor Investment Advisory LLC	1,032	$72K	0.0%	N/A	0.001%
6/18/2026	Pacer Advisors Inc.	19,744	$623K	0.0%	-38.9%	0.011%
6/3/2026	Parallel Advisors LLC	1,008	$32K	0.0%	+42.8%	0.001%
5/22/2026	Segall Bryant & Hamill LLC	1,044,984	$32.95M	0.4%	-16.3%	0.564%
5/19/2026	Bank of America Corp DE	855,453	$26.97M	0.0%	+48.3%	0.462%
5/18/2026	California State Teachers Retirement System	149,826	$4.72M	0.0%	+21.8%	0.081%
5/18/2026	Royal Bank of Canada	30,337	$957K	0.0%	-19.2%	0.016%
5/16/2026	The Manufacturers Life Insurance Company	81,072	$2.56M	0.0%	-1.4%	0.044%
5/16/2026	Maverick Capital Ltd.	42,224	$1.33M	0.0%	N/A	0.023%
5/16/2026	Quantinno Capital Management LP	133,902	$4.22M	0.0%	+104.9%	0.072%
5/16/2026	Castleark Management LLC	147,420	$4.65M	0.2%	N/A	0.080%
5/15/2026	Granahan Investment Management LLC	215,001	$6.78M	0.3%	+139.3%	0.116%
5/15/2026	Entropy Technologies LP	67,719	$2.14M	0.1%	+88.7%	0.037%
5/14/2026	Renaissance Technologies LLC	123,900	$3.91M	0.0%	-71.6%	0.067%
5/14/2026	Public Employees Retirement System of Ohio	36,618	$1.16M	0.0%	-3.4%	0.020%
5/14/2026	Sei Investments Co.	218,976	$6.90M	0.0%	+126.0%	0.118%
5/14/2026	State of Wyoming	13,834	$436K	0.1%	+29.7%	0.007%
5/13/2026	Cetera Investment Advisers	11,656	$368K	0.0%	-2.1%	0.006%
5/13/2026	First Trust Advisors LP	414,897	$13.08M	0.0%	-7.6%	0.224%
5/8/2026	PNC Financial Services Group Inc.	13,949	$440K	0.0%	+18.0%	0.008%
5/7/2026	Dimensional Fund Advisors LP	2,170,487	$68.40M	0.0%	+1.4%	1.171%
5/7/2026	Parallel Advisors LLC	1,008	$32K	0.0%	+42.8%	0.001%
5/7/2026	KBC Group NV	4,581	$144K	0.0%	+24.0%	0.002%
5/7/2026	SEB Asset Management AB	7,798	$246K	0.0%	N/A	0.004%
5/7/2026	Swiss National Bank	256,400	$8.08M	0.0%	+0.4%	0.138%
5/7/2026	Roubaix Capital LLC	169,993	$5.36M	2.5%	N/A	0.092%
5/6/2026	Assetmark Inc.	6,338	$200K	0.0%	+12.5%	0.003%
5/6/2026	Lightrock Netherlands B.V.	507,990	$16.02M	1.6%	+43.3%	0.274%
5/6/2026	Allspring Global Investments Holdings LLC	307,624	$10.24M	0.0%	-13.6%	0.166%
5/5/2026	Bank of New York Mellon Corp	743,292	$23.44M	0.0%	-1.0%	0.401%
5/5/2026	Maryland State Retirement & Pension System	6,797	$214K	0.0%	N/A	0.004%
5/4/2026	State of Michigan Retirement System	29,900	$943K	0.0%	+2.0%	0.016%
5/4/2026	Principal Financial Group Inc.	1,790,466	$56.45M	0.0%	+2.8%	0.966%
5/4/2026	Teachers Retirement System of The State of Kentucky	40,633	$1.28M	0.0%	+2.5%	0.022%
5/1/2026	Fifth Third Bancorp	29,063	$916K	0.0%	+2,377.7%	0.016%
5/1/2026	Candriam S.C.A.	86,073	$2.71M	0.0%	-2.1%	0.046%
4/30/2026	Hsbc Holdings PLC	18,355	$575K	0.0%	-53.9%	0.010%
4/30/2026	Oregon Public Employees Retirement Fund	25,437	$802K	0.0%	+2.8%	0.014%
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4/28/2026	Praxis Investment Management Inc.	6,590	$208K	0.0%	N/A	0.004%
4/27/2026	New York State Teachers Retirement System	28,178	$888K	0.0%	-12.5%	0.015%
4/27/2026	Y Intercept Hong Kong Ltd	45,132	$1.42M	0.0%	N/A	0.024%
4/27/2026	Elevation Point Wealth Partners LLC	7,690	$242K	0.0%	N/A	0.004%
4/25/2026	Keybank National Association OH	12,380	$390K	0.0%	-8.7%	0.007%
4/24/2026	Peregrine Capital Management LLC	259,764	$8.19M	0.3%	-4.1%	0.140%
4/22/2026	Pictet Asset Management Holding SA	22,377	$706K	0.0%	+7.6%	0.012%
4/22/2026	Sterling Capital Management LLC	4,129	$130K	0.0%	-43.3%	0.002%
4/21/2026	Louisiana State Employees Retirement System	36,000	$1.14M	0.0%	N/A	0.019%
4/16/2026	SG Americas Securities LLC	5,245	$165K	0.0%	-64.5%	0.003%

ALGM Institutional Ownership - Frequently Asked Questions

During the previous two years, 310 institutional investors and hedge funds held shares of Allegro MicroSystems. The most heavily invested institutionals were S Squared Technology LLC ($23.15B), BlackRock Inc. ($966.98M), FMR LLC ($497.85M), Vanguard Group Inc. ($374.66M), Capital Research Global Investors ($345.88M), Invesco Ltd. ($201.84M), and JPMorgan Chase & Co. ($193.83M).Learn more on Allegro MicroSystems' institutional investors.

56.45% of Allegro MicroSystems' stock is owned by institutional investors. Learn more on ALGM's institutional investor holdings.

Of the 285 institutional investors that purchased Allegro MicroSystems' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($13.89M), FMR LLC ($8.53M), Invesco Ltd. ($6.50M), Wellington Management Group LLP ($5.07M), Bank of America Corp DE ($4.76M), Norges Bank ($4.10M), and Alliancebernstein L.P. ($2.57M).

Institutional investors have bought a total of 37,437,641 shares in the last 24 months. This purchase volume represents approximately $1.78B in transactions.

Of the 106 institutional investors that sold Allegro MicroSystems' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Capital Research Global Investors ($3.71M), T. Rowe Price Investment Management Inc. ($1.69M), Wellington Management Group LLP ($1.53M), Balyasny Asset Management L.P. ($973.76K), Invesco Ltd. ($942.15K), JPMorgan Chase & Co. ($666.08K), and Royal Bank of Canada ($612.14K).

Institutional investors have sold a total of 14,475,936 shares in the last 24 months. This volume of shares sold represents approximately $403.78M in transactions.

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Institutional ownership data for NASDAQ:ALGM is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/23/2026. New 13F filings are added each quarter as they're published.

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Allegro MicroSystems (ALGM) Institutional Ownership

ALGM Institutional Buying and Selling by Quarter

Allegro MicroSystems Major Shareholders & Ownership History

ALGM Institutional Ownership - Frequently Asked Questions

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Allegro MicroSystems (ALGM) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Allegro MicroSystems (NASDAQ:ALGM)

ALGM Institutional Buying and Selling by Quarter

Allegro MicroSystems Major Shareholders & Ownership History

ALGM Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ALGM shares?

What percentage of Allegro MicroSystems' stock is owned by institutional investors?

Which institutional investors have been buying Allegro MicroSystems' stock?

How much institutional buying is happening at Allegro MicroSystems?

Which of Allegro MicroSystems' major shareholders have been selling company stock?

How much institutional selling is happening at Allegro MicroSystems?

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