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Allegro Microsystems, Inc.

ALGM
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0000866291

In the last 90 days, Allegro Microsystems, Inc. insiders filed 0 open-market purchases and 2 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $10.2B in total; Maverick Capital is the only superinvestor holding it.

Q2 2021 vs. Q1 2021

How the institutions holding Allegro Microsystems, Inc. changed between Q1 2021 and Q2 2021.

All holders in Q2 2021All holders in Q1 2021

13F holders of ALGM: Q1 2021 compared with Q2 2021
MeasureQ1 2021Of which not filed for Q2 2021Q2 2021Change
Holders1232129+8
Shares78.0M1.83M80.0M+3.88M (+5.1%)
Value$1.98B$46.3M$2.22B+$286.3M (+14.8%)

2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (34)

Institutions that held Allegro Microsystems, Inc. at the end of Q2 2021 but not at the end of Q1 2021.

Institutions new to ALGM in Q2 2021
InstitutionSharesValue% of portfolio
Macquarie Group Ltd2,180,422$60.4M0.05%
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.358,050$9.92M0.05%
Swiss National Bank125,300$3.47M0.00%
Trillium Asset Management, LLC122,074$3.38M0.09%
Zweig-DiMenna Associates LLC87,323$2.42M0.15%
Engineers Gate Manager LP85,678$2.37M0.15%
Occudo Quantitative Strategies LP42,143$1.17M0.18%
Twinbeech Capital LP34,893$967.0K0.12%
D. E. Shaw & Co., Inc.34,267$949.0K0.00%
Jacobs Levy Equity Management, Inc21,799$604.0K0.00%
Hillsdale Investment Management Inc.21,800$603.0K0.05%
Paloma Partners Management Co20,021$555.0K0.01%
Dynamic Technology Lab Private Ltd19,154$531.0K0.05%
Quantbot Technologies LP17,247$477.0K0.04%
Arizona State Retirement System15,448$428.0K0.00%
Voloridge Investment Management, LLC15,345$425.0K0.00%
Handelsbanken Fonder AB13,700$379.0K0.00%
Belvedere Trading LLC14,156$368.0K0.15%
Pathstone Family Office, LLC11,676$323.0K0.01%
Trexquant Investment LP11,546$320.0K0.03%
Amalgamated Bank9,869$273.0K0.00%
Wellington Management Group LLP9,794$271.0K0.00%
Victory Capital Management Inc9,560$265.0K0.00%
HSBC Holdings PLC9,352$259.0K0.00%
Holocene Advisors, LP9,290$257.0K0.00%
Oppenheimer Asset Management Inc.9,241$256.0K0.00%
Teacher Retirement System of Texas7,314$203.0K0.00%
Zurcher Kantonalbank (Zurich Cantonalbank)5,300$147.0K0.00%
Shell Asset Management Co3,743$104.0K0.00%
Private Capital Group, LLC1,925$53.0K0.01%
Ellevest, Inc.330$9.00K0.00%
US Bancorp42$1.00K0.00%
Berman Capital Advisors, LLC57$1.00K0.00%
Quadrant Capital Group LLC11$00.00%

Sold out (26)

Institutions that held Allegro Microsystems, Inc. at the end of Q1 2021 and filed for Q2 2021 without it.

Not filed for Q2 2021 yet (2)

Institutions that held Allegro Microsystems, Inc. at the end of Q1 2021 and haven't filed a 13F for Q2 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALGM in Q1 2021 that haven't filed for Q2 2021
InstitutionShares, Q1 2021Value, Q1 2021
Waddell & Reed Financial Inc1,815,791$46.0M
Amundi Asset Management US, Inc.11,804$299.0K