ALLEGRO MICROSYSTEMS INC (ALGM) Institutional Ownership Changes & 13F Activity

ALLEGRO MICROSYSTEMS INC (ALGM). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include California State Teachers Retirement System, Invesco Ltd., Price T Rowe Associates Inc, Sixth Street Partners Management Company, L.P., and Nomura Asset Management International Inc..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+102,160+126.0%183,232$12.76MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcSell-5,518-31.7%11,873$826.64KQ2 2026Sep 09, 2026
Corient Private Wealth LlcBuy+44,338+319.0%58,237$4.05MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+10,063,097+6716.5%10,212,923$10.21MQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+14,956+131.8%26,306$1.83MQ2 2026Aug 19, 2026
United Capital Financial Advisors, LlcBuy+3,4143,414$237.68KQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioSell-529-1.4%36,089$2.51MQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+360+1384.6%386$26.87KQ2 2026Aug 17, 2026
Invesco Ltd.Buy+4,926,912+56.3%13,678,393$952.29MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+3,596,489+3160.4%3,710,288$258.31MQ2 2026Aug 14, 2026
Sixth Street Partners Management Company, L.P.Buy+1,360,5251,360,525$94.72MQ2 2026Aug 14, 2026
Nomura Asset Management International Inc.Sell-921,138-44.3%1,159,503$80.72MQ2 2026Aug 14, 2026
Alliancebernstein L.P.Sell-522,167-30.3%1,201,203$37.87MQ2 2026Aug 14, 2026
Adage Capital Partners Gp, L.L.C.Sell-342,787-23.4%1,121,950$78.11MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-295,847-46.2%343,994$23.95MQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncSell-281,269-91.3%26,833$1.87MQ2 2026Aug 14, 2026
Sirios Capital Management L PSell-274,983-92.1%23,438$1.63MQ2 2026Aug 14, 2026
Aperture Investors, LlcSell-266,247-37.5%443,427$30.87MQ2 2026Aug 14, 2026
Kennedy Capital Management LlcSell-220,371-24.2%689,668$48.01MQ2 2026Aug 14, 2026
Man Group PlcSell-211,248-69.0%95,101$6.62MQ2 2026Aug 14, 2026
Silvercrest Asset Management Group LlcSell-170,809-24.1%537,082$37.39MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+148,627+43.1%493,753$33.42MQ2 2026Aug 14, 2026
Wellington Management Group LlpBuy+141,841+21.1%814,937$56.74MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+137,842+9.6%1,575,057$109.66MQ2 2026Aug 14, 2026
S Squared Technology, LlcSell-125,000-27.3%332,451$23.15MQ2 2026Aug 14, 2026
Ameriprise Financial IncSell-109,771-15.3%608,793$42.95MQ2 2026Aug 14, 2026
Royal Bank Of CanadaBuy+78,160+257.6%108,497$7.55MQ2 2026Aug 14, 2026
Canada Pension Plan Investment BoardSell-78,000-63.9%44,000$3.06MQ2 2026Aug 14, 2026
Raymond James Financial IncSell-67,693-6.8%928,060$64.61MQ2 2026Aug 14, 2026
Frontier Capital Management Co LlcBuy+66,873+25.3%330,904$23.04MQ2 2026Aug 14, 2026
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Frequently asked questions about ALGM activity

  • Which institutional owners are buying ALGM?

    Institutional owners buying ALGM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ALGM activity?

    "Buy" means an investor increased their reported position in ALGM compared to the prior reporting period. This reflects growing exposure to ALLEGRO MICROSYSTEMS INC (ALGM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ALGM increasing?

    Institutional interest in ALGM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.