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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, Q2 2025

Institutional positions in Allegro Microsystems, Inc. as of Jun 30, 2025. 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
274
−15 vs. Q1 2025
Shares held
146.0M
−9.87M (−6.3%) vs. Q1 2025
Total value
$4.99B
+$1.07B (+27.4%) vs. Q1 2025
New holders
53
95 more added
Sold out
68
103 more reduced

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

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 holdersQ2 2025: 274 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 heldQ2 2025: $4.99B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q1 2025.

Institutions holding ALGM in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
State of Wyoming3,066$104.8K0.01%+110+3.7%Added
TD Waterhouse Canada Inc.3,038$104.4K0.00%+1,377+82.9%Added
GAMMA Investing LLC2,869$98.1K0.01%−1,286−31.0%Reduced
Nisa Investment Advisors, LLC2,210$75.6K0.00%+1,356+158.8%Added
Tower Research Capital LLC (TRC)2,001$68.4K0.00%−4,813−70.6%Reduced
Umb Bank N A1,835$62.7K0.00%+415+29.2%Added
Skopos Labs, Inc.1,740$59.5K0.01%+874+100.9%Added
US Bancorp1,579$54.0K0.00%−8,367−84.1%Reduced
Quarry LP1,498$51.2K0.01%−5,191−77.6%Reduced
Fifth Third Bancorp1,222$41.8K0.00%−73−5.6%Reduced
CoreCap Advisors, LLC900$30.8K0.00%−537−37.4%Reduced
Parallel Advisors, LLC847$29.0K0.00%−844−49.9%Reduced
EverSource Wealth Advisors, LLC788$26.9K0.00%−226−22.3%Reduced
Sound Income Strategies, LLC692$23.7K0.00%+564+440.6%Added
Covestor Ltd642$22.0K0.01%+94+17.2%Added
Signaturefd, LLC628$21.5K0.00%+271+75.9%Added
Hurley Capital, LLC603$20.6K0.01%00.0%Unchanged
IFP Advisors, Inc0$17.6K0.00%0Unchanged
Allworth Financial LP494$16.9K0.00%+202+69.2%Added
Global X Japan Co., Ltd.487$16.7K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.474$16.2K0.00%+377+388.7%Added
Hantz Financial Services, Inc.482$16.0K0.00%+440+1,047.6%Added
Bessemer Group Inc432$15.0K0.00%−78−15.3%Reduced
Rise Advisors, LLC424$14.5K0.01%+92+27.7%Added
Principal Securities, Inc.332$11.4K0.00%+65+24.3%Added
FNY Investment Advisers, LLC335$11.0K0.00%−6,165−94.8%Reduced
First Horizon Advisors, Inc.293$10.0K0.00%00.0%Unchanged
SBI Securities Co., Ltd.285$9.74K0.00%−100−26.0%Reduced
Jones Financial Companies LLLP270$9.23K0.00%+20+8.0%Added
Huntington National Bank258$8.82K0.00%−739−74.1%Reduced
Parkside Financial Bank & Trust253$8.65K0.00%+101+66.4%Added
Medallion Wealth Advisors, LLC250$8.60K0.00%00.0%Unchanged
Spire Wealth Management226$7.73K0.00%+8+3.7%Added
Farther Finance Advisors, LLC224$7.66K0.00%−114−33.7%Reduced
Massmutual Trust Co FSB201$6.87K0.00%+85+73.3%Added
Whittier Trust Co of Nevada Inc194$6.63K0.00%−6−3.0%Reduced
Leonteq Securities AG180$6.15K0.00%−11−5.8%Reduced
Walleye Capital LLC167$5.71K0.00%−489,133−100.0%Reduced
LGT Financial Advisors LLC157$5.37K0.01%+157New
Twin Peaks Wealth Advisors, LLC148$4.72K0.00%+148New
Global Retirement Partners, LLC121$4.14K0.00%+121New
Concord Wealth Partners120$4.10K0.00%00.0%Unchanged
GeoWealth Management, LLC108$3.69K0.00%+108New
Clearstead Advisors, LLC103$3.52K0.00%+53+106.0%Added
Bell Investment Advisors, Inc101$3.45K0.00%+13+14.8%Added
Farmers & Merchants Investments Inc85$2.91K0.00%+38+80.9%Added
MAI Capital Management70$2.39K0.00%+70New
Kilter Group LLC64$2.19K0.00%+64New
Ronald Blue Trust, Inc.46$1.57K0.00%+46New
Robbins Farley LLC44$1.50K0.00%−193−81.4%Reduced
Rothschild Investment LLC40$1.37K0.00%+35+700.0%Added
Cullen/Frost Bankers, Inc.37$1.26K0.00%+37New
WealthTrak Capital Management LLC35$1.20K0.00%00.0%Unchanged
Fortitude Family Office, LLC35$1.20K0.00%+35New
Steward Partners Investment Advisory, LLC31$1.06K0.00%−175−85.0%Reduced
Bare Financial Services, Inc23$7860.00%−24−51.1%Reduced
Bogart Wealth, LLC23$7860.00%+23New
Atlantic Trust, LLC20$6840.00%−85−81.0%Reduced
GWM Advisors LLC20$6840.00%00.0%Unchanged
Versant Capital Management, Inc20$6840.00%+20New
Cromwell Holdings LLC19$6500.00%+19New
MV Capital Management, Inc.14$4790.00%−11−44.0%Reduced
Cornerstone Planning Group LLC15$4690.00%00.0%Unchanged
Rakuten Securities, Inc.12$4100.00%−6−33.3%Reduced
South State Corp.10$3420.00%−65−86.7%Reduced
Kayne Anderson Rudnick Investment Management LLC9$3080.00%+9New
CIBC Private Wealth Group, LLC9$3080.00%+9New
IMA Wealth, Inc.8$2740.00%+8New
GPS Wealth Strategies Group, LLC6$2050.00%+5+500.0%Added
Creative Financial Designs Inc5$1710.00%+5New
Atlantic Union Bankshares Corp5$1710.00%+5New
TFC Financial Management1$350.00%00.0%Unchanged
Avion Wealth17$00.00%−45−72.6%Reduced
Ecofi Investissements SA27,100––−34,100−55.7%Reduced
Activest Wealth Management0$00.00%−3−100.0%Sold out
Freestone Grove Partners LP0$00.00%−1,603,200−100.0%Sold out
Cinctive Capital Management LP0$00.00%−942,702−100.0%Sold out
Paloma Partners Management Co0$00.00%−708,968−100.0%Sold out
Oasis Management Co Ltd.0$00.00%−530,210−100.0%Sold out
FIFTHDELTA Ltd0$00.00%−505,600−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−469,589−100.0%Sold out
Talos Asset Management LP0$00.00%−449,600−100.0%Sold out
Westfield Capital Management Co LP0$00.00%−303,672−100.0%Sold out
Meridiem Capital Partners LP0$00.00%−249,920−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−232,055−100.0%Sold out
Osterweis Capital Management Inc0$00.00%−179,290−100.0%Sold out
TIG Advisors, LLC0$00.00%−161,253−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−144,303−100.0%Sold out
Jane Street Group, LLC0$00.00%−105,698−100.0%Sold out
Holocene Advisors, LP0$00.00%−93,404−100.0%Sold out
Kettle Hill Capital Management, LLC0$00.00%−93,393−100.0%Sold out
Squarepoint Ops LLC0$00.00%−87,580−100.0%Sold out
New Age Alpha Advisors, LLC0$00.00%−85,071−100.0%Sold out
Royce & Associates LP0$00.00%−78,153−100.0%Sold out
Credit Industriel Et Commercial0$00.00%−56,206−100.0%Sold out
Atom Investors LP0$00.00%−46,016−100.0%Sold out
Groupe la Francaise0$00.00%−37,137−100.0%Sold out
IMC-Chicago, LLC0$00.00%−34,676−100.0%Sold out
Ardsley Advisory Partners LP0$00.00%−32,500−100.0%Sold out
Granahan Investment Management Inc0$00.00%−31,956−100.0%Sold out