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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 2026 vs. Q1 2026

How the institutions holding Allegro Microsystems, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of ALGM: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders3225375+58
Shares138.3M101.8K148.2M+9.97M (+7.2%)
Value$4.32B$3.21M$10.2B+$5.91B (+136.7%)

5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (101)

Institutions that held Allegro Microsystems, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Showing the largest 100 of 101 by value.

Institutions new to ALGM in Q2 2026
InstitutionSharesValue% of portfolio
Norges Bank1,294,958$90.2M0.01%
Braun Stacey Associates Inc366,493$25.5M0.72%
CIBC Bancorp USA Inc.327,536$22.8M0.03%
Granite Investment Partners, LLC215,679$15.0M0.77%
Nippon Life Global Investors Americas, Inc.143,870$10.0M0.40%
Lisanti Capital Growth, LLC107,865$7.51M1.65%
Edgestream Partners, L.P.92,188$6.42M0.19%
Holocene Advisors, LP63,010$4.39M0.01%
EAM Investors, LLC59,485$4.14M0.37%
Jupiter Topco LLC57,329$3.99M0.00%
Munro Partners49,800$3.47M0.08%
Amundi49,273$3.43M0.00%
Stifel Financial Corp42,037$2.93M0.00%
Legato Capital Management LLC39,195$2.73M0.23%
Gateway Investment Advisers LLC37,110$2.58M0.03%
Mitsubishi UFJ Trust & Banking Corp26,357$1.83M0.00%
Intech Investment Management LLC22,670$1.58M0.01%
TriaGen Wealth Management LLC21,186$1.47M0.37%
IMC-Chicago, LLC17,227$1.20M0.01%
Csenge Advisory Group17,210$1.20M0.05%
Sig Brokerage, LP15,306$1.07M0.17%
Teacher Retirement System of Texas12,692$883.6K0.00%
Cerity Partners LLC12,009$836.0K0.00%
EntryPoint Capital, LLC10,812$752.7K0.18%
Truist Financial Corp9,166$638.1K0.00%
Pinebridge Investments LLC9,105$633.9K0.01%
USS Investment Management Ltd8,500$591.7K0.00%
Evolve Private Wealth, LLC8,428$586.8K0.04%
CAPROCK Group, Inc.8,220$572.3K0.01%
Atria Investments LLC7,695$535.7K0.01%
Meridian Wealth Management, LLC6,950$483.9K0.01%
Axxion S.A.6,702$466.6K0.03%
Whalen Wealth Management Inc.6,399$445.5K0.20%
HighTower Advisors, LLC6,233$433.9K0.00%
O'Shaughnessy Asset Management, LLC6,147$428.0K0.00%
Belvedere Trading LLC5,764$401.3K0.03%
CIBC Asset Management Inc5,725$398.6K0.00%
PFG Investments, LLC5,680$395.4K0.02%
M&T Bank Corp5,416$377.1K0.00%
Crossmark Global Holdings, Inc.5,238$364.7K0.00%
Ground Swell Capital, LLC5,197$361.8K0.39%
Archford Capital Strategies, LLC5,001$348.2K0.04%
Brighton Jones LLC4,775$332.5K0.01%
Dynasty Wealth Management, LLC4,704$327.5K0.00%
Sanctuary Advisors, LLC4,698$327.1K0.00%
Coldstream Capital Management Inc4,695$326.9K0.00%
Fulton Bank, N.A.4,623$321.9K0.01%
Vise Technologies, Inc.4,496$313.0K0.00%
Meeder Advisory Services, Inc.4,159$289.6K0.01%
Frec Markets, Inc.4,153$289.1K0.03%
Global Retirement Partners, LLC4,149$288.9K0.00%
Callan Family Office, LLC4,138$288.1K0.01%
Shelton Capital Management4,135$287.9K0.01%
Odyssean, LLC4,034$280.8K0.05%
Perigon Wealth Management, LLC3,916$272.6K0.00%
Aviva PLC3,891$270.9K0.00%
Nykredit A/S3,787$263.7K0.00%
North Dakota State Investment Board3,689$256.8K0.01%
Fiduciary Trust Co3,614$251.6K0.00%
Prelude Capital Management, LLC3,430$238.8K0.02%
United Capital Financial Advisers, LLC3,414$237.7K0.00%
Ritholtz Wealth Management3,254$226.5K0.00%
Catalytic Wealth RIA, LLC3,085$214.8K0.01%
Fifth Third Wealth Advisors LLC3,073$213.9K0.01%
Seascape Capital Management3,028$211.0K0.05%
Teza Capital Management LLC3,019$210.2K0.41%
Lido Advisors, LLC2,991$208.3K0.00%
Verdence Capital Advisors LLC2,929$203.9K0.01%
HB Wealth Management, LLC2,929$203.9K0.00%
Brinker Capital Investments, LLC2,918$203.2K0.00%
Merit Financial Group, LLC2,907$202.4K0.00%
Argent Trust Co2,877$200.3K0.01%
Meiji Yasuda Asset Management Co Ltd.2,873$200.0K0.01%
Clear Street Markets LLC2,633$183.3K0.04%
NCP Inc.2,100$146.2K0.20%
Harbor Investment Advisory, LLC1,032$71.8K0.01%
First National Bank700$48.7K0.02%
Continuum Advisory, LLC500$34.8K0.00%
V-Square Quantitative Management LLC305$21.2K0.00%
Miller Capital Partners, Inc.265$18.4K0.01%
Quarry LP254$17.7K0.00%
Highland Investment Advisors LLC150$10.4K0.00%
Stone House Investment Management, LLC125$8.70K0.00%
Private Trust Co NA92$6.41K0.00%
Mascoma Wealth Management LLC88$6.13K0.00%
Rialto Wealth Management, LLC40$2.79K0.00%
Montag A & Associates Inc22$1.53K0.00%
Northwestern Mutual Wealth Management Co21$1.46K0.00%
Sachetta, LLC18$1.25K0.00%
Raffa Wealth Management, LLC14$9750.00%
South State Corp.11$7660.00%
UMA Financial Services, Inc.10$6970.00%
West Paces Advisors Inc.5$3480.00%
Manning & Napier Advisors LLC5$3320.00%
Abound Wealth Management4$2790.00%
Buck Wealth Strategies, LLC4$2780.00%
Manchester Capital Management LLC3$2090.00%
Planning Strategies Inc.3$2090.00%
ROSS\JOHNSON & Associates LLC2$1390.00%
Medallion Wealth Advisors, LLC2$1390.00%

Sold out (43)

Institutions that held Allegro Microsystems, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of ALGM in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Citadel Advisors LLC399,444$12.6M
G2 Investment Partners Management LLC208,569$6.58M
Kettle Hill Capital Management, LLC181,531$5.72M
Roubaix Capital, LLC169,993$5.36M
Trexquant Investment LP133,800$4.22M
Renaissance Technologies LLC123,900$3.91M
Brevan Howard Capital Management LP95,099$3.00M
Summit Partners Public Asset Management, LLC54,000$1.70M
Boothbay Fund Management, LLC51,418$1.62M
Y-Intercept (Hong Kong) Ltd45,132$1.42M
Tudor Investment Corp Et Al37,128$1.17M
Lecap Asset Management Ltd28,521$899.3K
Altfest L J & Co Inc28,167$888.1K
Millennium Management LLC28,127$886.8K
Fox Run Management, L.L.C.27,987$784.8K
Moody National Bank Trust Division22,355$704.9K
CenterBook Partners LP21,847$688.8K
Mirabella Financial Services LLP17,082$538.6K
Bridgewater Associates, LP16,645$524.8K
PEAK6 LLC15,503$488.8K
Catalyst Funds Management Pty Ltd13,500$425.7K
Alpine Global Management, LLC12,630$398.2K
Virtu Financial LLC11,703$369.0K
Schonfeld Strategic Advisors LLC11,699$368.9K
MML Investors Services, LLC10,975$346.0K
Fieldview Capital Management, LLC10,251$323.2K
Caitong International Asset Management Co., Ltd9,886$311.7K
Bailard, Inc.8,100$255.4K
Jefferies Financial Group Inc.7,652$241.3K
SIH Partners, LLLP6,872$216.7K
Machina Capital S.A.S.6,847$215.9K
Headlands Technologies LLC6,685$210.8K
Walleye Trading LLC3,515$110.8K
Eurizon Capital SGR S.p.A.2,523$70.7K
Federation des caisses Desjardins du Quebec1,646$51.9K
Kemnay Advisory Services Inc.634$20.0K
MAI Capital Management429$13.5K
Simplex Trading, LLC154$4.86K
Twin Peaks Wealth Advisors, LLC149$4.70K
Root Financial Partners, LLC98$3.09K
Atwood & Palmer Inc15$473
IFP Advisors, Inc8$252
Rachor Investment Advisory Services, LLC7$221

Not filed for Q2 2026 yet (5)

Institutions that held Allegro Microsystems, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALGM in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Janus Henderson Group PLC57,329$1.81M
TSG Advice Partners, LLC17,192$542.1K
CWM, LLC13,860$437.0K
Skopos Labs, Inc.13,208$416.4K
Sunbelt Securities, Inc.185$5.83K