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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.

13F holders, Q1 2021

Institutional positions in Allegro Microsystems, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
123
No complete 13F data for Q4 2020
Shares held
78.0M
No complete 13F data for Q4 2020
Total value
$1.98B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ALGM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 123 institutions
Q1 2021: 123 institutionsQ2 2021: 129 institutionsQ3 2021: 153 institutionsQ4 2021: 165 institutionsQ1 2022: 173 institutionsQ2 2022: 172 institutionsQ3 2022: 170 institutionsQ4 2022: 219 institutionsQ1 2023: 314 institutionsQ2 2023: 353 institutionsQ3 2023: 312 institutionsQ4 2023: 288 institutionsQ1 2024: 277 institutionsQ2 2024: 268 institutionsQ3 2024: 248 institutionsQ4 2024: 256 institutionsQ1 2025: 292 institutionsQ2 2025: 274 institutionsQ3 2025: 296 institutionsQ4 2025: 294 institutionsQ1 2026: 322 institutionsQ2 2026: 375 institutions
Value heldQ1 2021: $1.98B
Q1 2021: $1.98BQ2 2021: $2.22BQ3 2021: $2.71BQ4 2021: $3.18BQ1 2022: $2.54BQ2 2022: $1.83BQ3 2022: $1.97BQ4 2022: $2.89BQ1 2023: $4.67BQ2 2023: $4.41BQ3 2023: $2.99BQ4 2023: $2.91BQ1 2024: $2.80BQ2 2024: $3.03BQ3 2024: $3.32BQ4 2024: $3.11BQ1 2025: $3.96BQ2 2025: $4.99BQ3 2025: $3.97BQ4 2025: $3.60BQ1 2026: $4.32BQ2 2026: $10.2B
Institutions holding ALGM and their total value by quarter
QuarterHoldersValue
Q2 2026375$10.2B
Q1 2026322$4.32B
Q4 2025294$3.60B
Q3 2025296$3.97B
Q2 2025274$4.99B
Q1 2025292$3.96B
Q4 2024256$3.11B
Q3 2024248$3.32B
Q2 2024268$3.03B
Q1 2024277$2.80B
Q4 2023288$2.91B
Q3 2023312$2.99B
Q2 2023353$4.41B
Q1 2023314$4.67B
Q4 2022219$2.89B
Q3 2022170$1.97B
Q2 2022172$1.83B
Q1 2022173$2.54B
Q4 2021165$3.18B
Q3 2021153$2.71B
Q2 2021129$2.22B
Q1 2021123$1.98B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ALGM in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Oep Capital Advisors, L.P.31,254,247$792.3M60.93%––
Vanguard Group Inc3,957,551$100.3M0.00%––
Alliancebernstein L.P.3,512,114$89.0M0.04%––
JPMorgan Chase & Co2,803,821$71.1M0.01%––
Wells Fargo & Company2,739,415$69.4M0.02%––
Clearbridge Investments, LLC2,719,468$68.9M0.05%––
BlackRock Inc.2,593,822$65.8M0.00%––
Invesco Ltd.2,373,642$60.2M0.02%––
Franklin Resources Inc2,187,275$55.4M0.02%––
Goldman Sachs Group Inc1,962,153$49.7M0.01%––
Waddell & Reed Financial Inc1,815,791$46.0M0.09%––
TimesSquare Capital Management, LLC1,651,900$41.9M0.36%––
Federated Hermes, Inc.1,450,000$36.8M0.07%––
Principal Financial Group Inc1,384,696$35.1M0.02%––
State Street Corp1,355,765$34.4M0.00%––
Schroder Investment Management Group992,622$25.2M0.03%––
Bamco Inc875,000$22.2M0.05%––
Emerald Mutual Fund Advisers Trust745,064$18.9M0.63%––
ArrowMark Colorado Holdings LLC731,521$18.5M0.14%––
Emerald Advisers, LLC693,418$17.6M0.63%––
Shelter Haven Capital Management, L.P.659,337$16.7M5.38%––
Morgan Stanley636,960$16.1M0.00%––
Geode Capital Management, LLC624,920$15.8M0.00%––
Point72 Asset Management, L.P.614,252$15.6M0.08%––
Adage Capital Partners GP, L.L.C.541,467$13.7M0.03%––
Pier Capital, LLC445,078$11.3M1.07%––
Capital Research Global Investors371,700$9.42M0.00%––
CIBC Asset Management Inc369,934$9.38M0.04%––
Tocqueville Asset Management L.P.355,650$9.02M0.14%––
American Century Companies Inc326,809$8.29M0.01%––
Charles Schwab Investment Management Inc287,309$7.28M0.00%––
Schonfeld Strategic Advisors LLC258,792$6.56M0.09%––
Marshall Wace North America L.P.233,375$5.92M0.02%––
Northern Trust Corp231,277$5.86M0.00%––
Scopus Asset Management, L.P.217,362$5.51M0.09%––
Arosa Capital Management LP215,400$5.46M1.81%––
Arrowstreet Capital, Limited Partnership205,684$5.21M0.01%––
Next Century Growth Investors LLC205,359$5.21M0.40%––
S Squared Technology, LLC192,451$4.88M2.31%––
Millennium Management LLC188,635$4.78M0.01%––
Needham Investment Management LLC176,153$4.47M0.61%––
Norges Bank175,000$4.44M0.00%––
Nuveen Asset Management, LLC159,841$4.05M0.00%––
Bank of America Corp141,339$3.58M0.00%––
Ameriprise Financial Inc126,727$3.21M0.00%––
Discovery Capital Management, LLC125,000$3.17M0.44%––
Marshall Wace, LLP118,344$3.00M0.02%––
Pentwater Capital Management LP105,521$2.67M0.03%––
Squarepoint Ops LLC105,000$2.66M0.02%––
Bank of New York Mellon Corp104,217$2.64M0.00%––
Brookfield Asset Management Inc.91,503$2.32M0.01%––
Axiom Investors LLC83,335$2.11M0.04%––
California State Teachers Retirement System82,290$2.09M0.00%––
Cubist Systematic Strategies, LLC71,798$1.82M0.02%––
Penn Capital Management Co Inc71,624$1.82M0.19%––
Washington Harbour Partners LP70,623$1.79M0.30%––
Qube Research & Technologies Ltd69,222$1.75M0.03%––
Russell Investments Group, Ltd.60,700$1.54M0.00%––
Woodline Partners LP52,671$1.33M0.03%––
California Public Employees Retirement System50,327$1.28M0.00%––
New York State Common Retirement Fund50,300$1.27M0.00%––
Three Peaks Capital Management, LLC49,518$1.25M0.40%––
Credit Suisse AG48,514$1.23M0.00%––
Sumitomo Mitsui Trust Holdings, Inc.42,955$1.09M0.00%––
Lazard Asset Management LLC42,955$1.09M0.00%––
Man Group plc39,026$990.0K0.00%––
Parametric Portfolio Associates LLC38,327$972.0K0.00%––
Cna Financial Corp37,709$956.0K0.29%––
Rhumbline Advisers37,519$951.0K0.00%––
State of Wisconsin Investment Board36,766$932.0K0.00%––
State of Alaska, Department of Revenue34,706$879.0K0.01%––
Allstate Corp32,463$823.0K0.03%––
Two Sigma Investments, LP31,276$793.0K0.00%––
Raymond James & Associates30,783$780.0K0.00%––
Envestnet Asset Management Inc27,682$702.0K0.00%––
Public Employees Retirement System of Ohio24,652$625.0K0.00%––
Los Angeles Capital Management LLC19,545$495.0K0.00%––
UBS Group AG19,419$492.0K0.00%––
SEI Investments Co18,995$482.0K0.00%––
Avidian Wealth Solutions, LLC18,000$456.0K0.04%––
Meeder Asset Management Inc17,165$437.0K0.02%––
Treasurer of the State of North Carolina17,020$431.0K0.00%––
UBS Asset Management Americas Inc16,337$414.1K0.00%––
M&T Bank Corp15,334$388.0K0.00%––
Magnetar Financial LLC15,170$385.0K0.00%––
ExodusPoint Capital Management, LP15,137$384.0K0.01%––
Ergoteles LLC13,251$336.0K0.01%––
Donoghue Forlines LLC13,200$335.0K0.07%––
DuPont Capital Management Corp12,603$319.0K0.01%––
Blueshift Asset Management, LLC12,602$319.0K0.03%––
Susquehanna International Group, LLP12,033$305.0K0.00%––
Amundi Asset Management US, Inc.11,804$299.0K0.00%––
Advisor Group Holdings, Inc.10,321$262.0K0.00%––
Voya Investment Management LLC10,257$260.0K0.00%––
FMR LLC9,978$253.0K0.00%––
Altfest L J & Co Inc8,239$209.0K0.05%––
Citadel Advisors LLC7,986$202.0K0.00%––
Citigroup Inc6,718$171.0K0.00%––
Royal Bank of Canada4,578$116.0K0.00%––
Panagora Asset Management Inc4,452$113.0K0.00%––