Allegro MicrosystemsALGM

13F holders, Q2 2025 (June 30)
273holders −18
52new positions
67sold out
6famous investors
$34.21avg. 13F price*

At the end of Q2 2025, 273 institutions reported holding Allegro Microsystems Inc. (ALGM) in their 13F filings, down 18 from Q1 2025. 52 opened new positions and 67 sold out. The largest holders were FMR LLC ($931.6M), Capital Research Global Investors ($543.8M) and Vanguard Group Inc. ($485.7M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Steve Cohen (0.0% of Point72 Asset Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).

Company
Allegro Microsystems Inc.
CUSIP
01749D105
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 276Q1 2024Q2 2024: 268Q2 2024Q3 2024: 248Q3 2024Q4 2024: 256Q4 2024Q1 2025: 291Q1 2025Q2 2025: 273Q2 2025Q3 2025: 296Q3 2025Q4 2025: 294Q4 2025Q1 2026: 322Q1 2026Q2 2026: 375Q2 2026

Total Exit/New Position Q1 2025 → Q2 2025

InstitutionsTotal Value
New Positions52$50.9M
Exits67$188.1M

All 13F filers, Q1 2025 → Q2 2025: 13,429,447 shares bought and 23,297,569 shares sold, net −9,868,122 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 273 holders

FMR LLC 0.05% Add +1.2% 27,247,473 $931.6M
Capital Research Global Investors 0.11% Add +43.8% 15,904,357 $543.8M
Vanguard Group Inc. 0.01% Add +0.8% 14,205,939 $485.7M
BlackRock, Inc. 0.01% Add +1.0% 11,789,868 $403.1M
JPMorgan Chase & Co. 0.02% Reduce -10.9% 8,013,498 $274.0M
Invesco Ltd. 0.04% Add +29.3% 6,254,575 $213.8M
State Street Corp. 0.01% Add +2.1% 5,193,001 $177.5M
Clearbridge Investments, LLC 0.09% Add +0.1% 3,163,764 $108.2M
Alliancebernstein L.P. 0.03% Add +189.4% 2,759,872 $94.4M
Wellington Management Group LLP 0.02% Reduce -18.8% 2,636,839 $90.2M
Macquarie Group Ltd. 0.11% Reduce -2.1% 2,579,328 $88.2M
Geode Capital Management, LLC 0.01% Add +0.8% 2,405,986 $82.3M
Frontier Capital Management Co. LLC 0.75% Reduce -18.7% 2,365,957 $80.9M
Adage Capital Partners Gp, L.L.C. 0.13% Add +3.3% 2,177,560 $74.5M
Principal Financial Group Inc. 0.04% Reduce -10.7% 2,157,337 $73.8M
Dimensional Fund Advisors LP 0.02% Add +7.1% 2,107,804 $72.1M
Morgan Stanley 0.00% Reduce -21.6% 2,076,352 $71.0M
Citadel Advisors 0.05% Reduce -64.9% 1,519,408 $51.9M
Balyasny Asset Management L.P. 0.12% Reduce -36.7% 1,472,089 $50.3M
Norges Bank 0.01% Add +11.2% 1,407,943 $48.1M
Analog Century Management LP 2.75% Reduce -29.0% 1,371,590 $46.9M
Segall Bryant & Hamill, LLC 0.64% Add +1.3% 1,328,254 $45.4M
T. Rowe Price Investment Management, Inc. 0.03% Add +0.6% 1,287,841 $44.0M
Raymond James Financial Inc. 0.01% Add +26.4% 1,255,182 $42.9M
Neuberger Berman Group LLC 0.03% Add +171.8% 1,244,415 $42.5M
Charles Schwab Investment Management Inc. 0.01% Add +6.2% 1,239,325 $42.4M
Summit Partners Public Asset Management, LLC 1.54% Reduce -49.2% 1,154,000 $39.5M
Northern Trust Corp. 0.01% Reduce -2.9% 1,058,724 $36.2M
Bank of New York Mellon Corp 0.01% Add +4.6% 1,042,420 $35.6M
Royal Bank of Canada 0.01% Add +619.5% 848,511 $29.0M
Voya Investment Management LLC 0.03% Add +7.1% 716,443 $24.5M
GW&K Investment Management, LLC 0.22% Reduce -33.2% 704,818 $24.1M
Silvercrest Asset Management Group LLC 0.16% Add +4.7% 690,365 $23.6M
Millennium Management 0.02% Reduce -71.7% 679,618 $23.2M
Loomis Sayles & Co. L P 0.03% Reduce -36.0% 666,361 $22.8M
UBS Group AG 0.00% Reduce -54.8% 659,640 $22.6M
First Trust Advisors LP 0.02% Add +5.4% 576,478 $19.7M
Massachusetts Financial Services Co. 0.01% Reduce -15.9% 513,045 $17.5M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +36.3% 483,323 $16.5M
Bank of America Corp. 0.00% Reduce -64.5% 458,769 $15.7M
Schonfeld Strategic Advisors LLC 0.11% Reduce -58.0% 435,308 $14.9M
Ameriprise Financial Inc. 0.00% Reduce -17.1% 417,154 $14.3M
S Squared Technology, LLC 5.73% No change 397,451 $13.6M
Allspring Global Investments Holdings, LLC 0.02% Reduce -0.9% 391,104 $13.5M
Two Sigma Investments, LP 0.02% Add +218.2% 346,806 $11.9M
Rhumbline Advisers 0.01% Reduce -0.1% 329,870 $11.3M
Trillium Asset Management, LLC 0.29% Reduce -4.8% 310,829 $10.6M
Point72 Asset Management 0.03% New 294,555 $10.1M
Pier Capital, LLC 1.37% Reduce -7.9% 262,153 $9.0M
Swiss National Bank 0.01% Reduce -1.3% 246,200 $8.4M
Nuveen, LLC 0.00% Add +98.5% 245,629 $8.4M
Goldman Sachs Group Inc. 0.00% Add +25.1% 237,561 $8.1M
Peregrine Capital Management LLC 0.24% Reduce -12.5% 234,925 $8.0M
ArrowMark Colorado Holdings LLC 0.14% Reduce -21.1% 227,377 $7.8M
Legal & General Group Plc 0.00% Add +3.4% 202,481 $6.9M
Retirement Systems of Alabama 0.02% Add +0.3% 200,781 $6.9M
Lazard Asset Management LLC 0.01% Reduce -32.8% 177,822 $6.1M
Citigroup Inc. 0.00% Add +78.3% 176,538 $6.0M
Wells Fargo & Company 0.00% Add +2.8% 165,489 $5.7M
Susquehanna International Group, LLP 0.01% Add +11.1% 154,114 $5.3M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% Reduce -5.2% 148,977 $5.1M
Ecofi Investissements SA 5.00% Reduce -55.7% 27,100 $4.5M
HRT Financial LP 0.02% New 130,831 $4.5M
G2 Investment Partners Management LLC 0.97% New 130,000 $4.4M
ExodusPoint Capital Management, LP 0.05% New 128,830 $4.4M
California State Teachers Retirement System 0.00% Reduce -23.6% 118,738 $4.1M
Barclays PLC 0.00% Reduce -5.2% 117,759 $4.0M
Lightrock Netherlands B.V. 1.10% Reduce -28.5% 137,752 $4.0M
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% Reduce -11.5% 116,923 $4.0M
State of Wisconsin Investment Board 0.01% Reduce -23.3% 116,652 $4.0M
Susquehanna Portfolio Strategies, LLC 0.09% New 115,830 $4.0M
Lisanti Capital Growth, LLC 1.04% Add +39.1% 109,975 $3.8M
Castleark Management LLC 0.11% New 103,160 $3.5M
Manufacturers Life Insurance Company, The 0.00% Reduce -7.9% 93,651 $3.2M
State of Tennessee, Department of Treasury 0.01% No change 93,365 $3.2M
T. Rowe Price Associates Inc. 0.00% Add +15.6% 89,327 $3.1M
Sei Investments Co. 0.00% Reduce -77.4% 86,352 $3.0M
State Board of Administration of Florida Retirement System 0.01% Add +0.2% 84,583 $2.9M
Jain Global LLC 0.05% Reduce -71.3% 81,812 $2.8M
Comerica Bank 0.01% Reduce -71.1% 78,990 $2.7M
Bridgewater Associates 0.01% New 77,321 $2.6M
Kennedy Capital Management LLC 0.06% Reduce -38.6% 73,395 $2.5M
State of New Jersey Common Pension Fund D 0.01% Reduce -6.0% 72,692 $2.5M
MetLife Investment Management, LLC 0.01% Reduce -2.9% 70,267 $2.4M
Itau Unibanco Holding S.A. 0.09% New 70,000 $2.4M
Mutual of America Capital Management LLC 0.02% Reduce -3.4% 65,011 $2.2M
Amalgamated Bank 0.02% Reduce -1.7% 59,267 $2.0M
Verition Fund Management LLC 0.01% Reduce -48.8% 58,786 $2.0M
Treasurer of the State of North Carolina 0.01% Add +7.3% 57,486 $2.0M
Janus Henderson Group PLC 0.00% Reduce -82.5% 57,329 $2.0M
New York State Common Retirement Fund 0.00% No change 54,138 $1.9M
Group One Trading LLC 0.06% Add +19.4% 52,861 $1.8M
Envestnet Asset Management Inc. 0.00% Reduce -49.8% 52,656 $1.8M
Polymer Capital Management (US) LLC 0.28% Reduce -59.0% 50,300 $1.7M
Needham Investment Management LLC 0.14% No change 50,000 $1.7M
Quantinno Capital Management LP 0.01% Add +18.1% 46,939 $1.6M
Police & Firemen's Retirement System of New Jersey 0.01% Add +8.9% 45,882 $1.6M
Robeco Schweiz AG 0.04% New 45,000 $1.5M
Yousif Capital Management, LLC 0.02% Reduce -1.7% 43,651 $1.5M
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +14.8% 42,732 $1.5M
Natixis Advisors, LLC 0.00% Add +10.8% 42,730 $1.5M
Campbell & CO Investment Adviser LLC 0.09% New 42,126 $1.4M
Teachers Retirement System of the State of Kentucky 0.01% No change 39,633 $1.4M
Public Employees Retirement System of Ohio 0.00% Add +6.1% 38,956 $1.3M
Moody National Bank Trust Division 0.12% No change 38,467 $1.3M
HSBC Holdings PLC 0.00% Add +5.7% 37,940 $1.3M
Arizona State Retirement System 0.01% Add +1.9% 37,608 $1.3M
Louisiana State Employees Retirement System 0.02% Add +0.6% 36,800 $1.3M
LPL Financial LLC 0.00% Reduce -38.8% 36,095 $1.2M
Handelsbanken Fonder AB 0.00% Add +9.0% 34,000 $1.2M
New York State Teachers Retirement System 0.00% Reduce -0.6% 33,600 $1.1M
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.01% Reduce -74.4% 33,588 $1.1M
New Mexico Educational Retirement Board 0.04% No change 31,881 $1.1M
Sumitomo Mitsui Trust Group, Inc. 0.00% Add +3.1% 31,652 $1.1M
State of Michigan Retirement System 0.01% Add +0.3% 31,400 $1.1M
Thrivent Financial for Lutherans 0.00% Add +0.4% 30,781 $1.1M
Van Eck Associates Corp. 0.00% Add +39.7% 29,817 $1.0M
Northwestern Mutual Investment Management Company, LLC 0.02% Add +0.4% 29,188 $998K
STRS Ohio 0.00% New 29,122 $996K
Alps Advisors Inc. 0.01% Reduce -11.2% 28,138 $962K
Nkcfo LLC 0.40% New 28,000 $957K
KLP Kapitalforvaltning As 0.00% Add +10.4% 27,500 $940K
Mirae Asset Global Investments Co., Ltd. 0.00% No change 26,883 $919K
Boothbay Fund Management, LLC 0.03% Add +78.5% 26,794 $916K
Oregon Public Employees Retirement Fund 0.02% Add +0.8% 26,737 $914K
Ameritas Investment Partners, Inc. 0.03% Reduce -3.0% 25,382 $868K
Sora Investors LLC 0.08% New 25,000 $855K
Picton Mahoney Asset Management 0.01% New 23,992 $821K
Ethic Inc. 0.01% Add +22.0% 23,758 $812K
Synovus Financial Corp. 0.01% Add +3.1% 23,747 $812K
Ensign Peak Advisors, Inc 0.00% No change 23,466 $802K
Victory Capital Management Inc. 0.00% Reduce -35.4% 22,435 $767K
Bridgefront Capital, LLC 0.20% New 22,310 $763K
Advisors Asset Management, Inc. 0.01% Reduce -2.8% 22,033 $753K
ProShare Advisors LLC 0.00% Add +1.4% 21,372 $731K
Legato Capital Management LLC 0.09% Add +54.5% 20,860 $713K
AQR Capital Management 0.00% Add +50.6% 20,729 $698K
Pathstone Holdings, LLC 0.00% Reduce -7.4% 20,125 $688K
Occudo Quantitative Strategies LP 0.08% New 19,753 $675K
Teacher Retirement System of Texas 0.00% Add +4.0% 19,573 $669K
Keybank National Association 0.00% Add +13.4% 19,415 $664K
Bayforest Capital Ltd 0.28% New 19,000 $650K
Entropy Technologies, LP 0.05% New 18,838 $644K
BNP Paribas Financial Markets 0.00% Reduce -87.6% 18,717 $640K
Guggenheim Capital LLC 0.01% Reduce -10.7% 18,701 $639K
SG Americas Securities, LLC 0.00% Reduce -41.8% 18,654 $638K
Creative Planning 0.00% Reduce -25.1% 18,592 $636K
Lecap Asset Management Ltd. 0.22% New 18,423 $630K
Circle Wealth Management, LLC 0.01% Reduce -2.7% 17,717 $606K
Oak Thistle LLC 0.09% Reduce -70.3% 17,410 $595K
Pictet Asset Management Holding SA 0.00% Reduce -13.0% 17,400 $595K
Corient Private Wealth LP 0.00% Add +27.2% 17,239 $589K
Quantbot Technologies LP 0.02% New 17,180 $587K
Xponance LLC 0.00% Add +9.6% 17,179 $587K
Aigen Investment Management, LP 0.08% New 16,921 $579K
Bank of Montreal 0.00% Reduce -17.8% 15,011 $513K
Caption Management, LLC 0.05% Add +383.9% 15,000 $513K
State of Alaska, Department of Revenue 0.01% Reduce -2.6% 14,672 $501K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% Add +1.5% 14,342 $490K
PNC Financial Services Group, Inc. 0.00% Reduce -12.4% 14,332 $490K
Vanguard Personalized Indexing Management, LLC 0.01% Reduce -47.3% 14,223 $486K
VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% Add +6.8% 14,069 $481K
Deutsche Bank AG 0.00% Reduce -47.2% 13,906 $475K
Banque Pictet & Cie SA 0.00% Reduce -6.3% 13,389 $458K
Federated Hermes, Inc. 0.00% Add +62.9% 12,204 $417K
Vident Advisory, LLC 0.00% Add +17.3% 11,823 $404K
Russell Investments Group, Ltd. 0.00% Reduce -6.8% 11,643 $398K
Summit Trail Advisors, LLC 0.01% New 11,530 $394K
Prudential Financial Inc. 0.00% Add +24.0% 15,684 $392K
Yorktown Management & Research Co Inc 0.37% No change 11,300 $386K
Wolverine Trading, LLC 0.01% Reduce -32.5% 11,087 $379K
Choreo, LLC 0.01% Reduce -6.3% 11,019 $377K
Commerce Bank 0.00% No change 10,930 $374K
Amundi 0.00% New 10,011 $358K
Avantax Advisory Services, Inc. 0.00% Reduce -5.9% 10,405 $356K
Securian Asset Management, Inc. 0.01% No change 9,875 $338K
Readystate Asset Management LP 0.02% New 9,486 $324K
XTX Topco Ltd 0.01% New 9,451 $323K
American Century Companies Inc. 0.00% Reduce -48.2% 9,319 $319K
Profund Advisors LLC 0.01% Reduce -3.4% 8,941 $306K
Gotham Asset Management 0.00% New 8,350 $285K
Sterling Capital Management LLC 0.00% Add +22.1% 7,947 $272K
AlphaQuest LLC 0.03% New 7,758 $265K
Johnson Investment Counsel Inc. 0.00% New 7,659 $262K
Public Employees Retirement Association of Colorado 0.00% No change 7,635 $261K
Claret Asset Management Corp 0.03% New 6,805 $233K
Maryland State Retirement & Pension System 0.01% New 6,797 $232K
Praxis Investment Management Inc. 0.01% New 6,590 $225K
Utah Retirement Systems 0.00% New 6,505 $222K
Assetmark, Inc. 0.00% Reduce -12.0% 6,342 $217K
CIBC Asset Management Inc 0.00% New 6,132 $210K
Canada Pension Plan Investment Board 0.00% Add +154.2% 6,100 $209K
Graham Capital Management, L.P. 0.01% New 6,047 $207K
iSAM Funds (UK) Ltd 0.04% Reduce -33.7% 5,945 $203K
Osaic Holdings, Inc. 0.00% Add +4.0% 5,591 $189K
Summit Securities Group LLC 0.06% Add +25.0% 5,000 $171K
NFSG Corp 0.03% New 5,000 $171K
1620 Investment Advisors, Inc. 0.12% Add +43.7% 4,944 $169K
Wexford Capital LP 0.04% New 4,070 $139K
Cwm, LLC 0.00% Reduce -14.5% 3,677 $126K
KBC Group NV 0.00% Reduce -39.7% 3,694 $126K
State of Wyoming 0.01% Add +3.7% 3,066 $105K
TD Waterhouse Canada Inc. 0.00% Add +82.9% 3,038 $104K
GAMMA Investing LLC 0.01% Reduce -30.9% 2,869 $98K
Nisa Investment Advisors, LLC 0.00% Add +158.8% 2,210 $76K
Tower Research Capital LLC (TRC) 0.00% Reduce -70.6% 2,001 $68K
UMB Bank, n.a. 0.00% Add +29.2% 1,835 $63K
Brooklyn Investment Group 0.01% Add +100.9% 1,740 $59K
US Bancorp \de 0.00% Reduce -84.1% 1,579 $54K
Quarry LP 0.01% Reduce -77.6% 1,498 $51K
Fifth Third Bancorp 0.00% Reduce -5.6% 1,222 $42K
CoreCap Advisors, LLC 0.00% Reduce -37.4% 900 $31K
Parallel Advisors, LLC 0.00% Reduce -49.9% 847 $29K
EverSource Wealth Advisors, LLC 0.00% Reduce -22.3% 788 $27K
Sound Income Strategies, LLC 0.00% Add +440.6% 692 $24K
Covestor Ltd 0.01% Add +17.1% 642 $22K
Signaturefd, LLC 0.00% Add +75.9% 628 $21K
Hurley Capital, LLC 0.01% No change 603 $21K
Allworth Financial LP 0.00% Add +69.2% 494 $17K
Global X Japan Co., Ltd. 0.00% No change 487 $17K
Arax Advisory Partners 0.00% Add +388.7% 474 $16K
Hantz Financial Services, Inc. 0.00% Add +1047.6% 482 $16K
Bessemer Group Inc. 0.00% Reduce -15.3% 432 $15K
Rise Advisors, LLC 0.01% Add +27.7% 424 $14K
Principal Securities, Inc. 0.00% Add +24.3% 332 $11K
FNY Investment Advisers, LLC 0.00% Reduce -94.8% 335 $11K
First Horizon Advisors, Inc. 0.00% No change 293 $10K
SBI Securities Co., Ltd. 0.00% Reduce -26.0% 285 $10K
Jones Financial Companies LLLP 0.00% Add +8.0% 270 $9K
Huntington National Bank 0.00% Reduce -74.1% 258 $9K
Parkside Financial Bank & Trust 0.00% Add +66.5% 253 $9K
Medallion Wealth Advisors, LLC 0.00% No change 250 $9K
Spire Wealth Management 0.00% Add +3.7% 226 $8K
Farther Finance Advisors, LLC 0.00% Reduce -33.7% 224 $8K
MassMutual Private Wealth & Trust, FSB 0.00% Add +73.3% 201 $7K
Whittier Trust Co. of Nevada Inc. 0.00% Reduce -3.0% 194 $7K
Leonteq Securities AG 0.00% Reduce -5.8% 180 $6K
Walleye Capital LLC 0.00% Reduce -100.0% 167 $6K
LGT Financial Advisors LLC 0.01% New 157 $5K
Twin Peaks Wealth Advisors, LLC 0.00% New 148 $5K
Global Retirement Partners, LLC 0.00% — 121 $4K
Concord Wealth Partners 0.00% No change 120 $4K
GeoWealth Management, LLC 0.00% New 108 $4K
Clearstead Advisors, LLC 0.00% Add +106.0% 103 $4K
Bell Investment Advisors, Inc 0.00% Add +14.8% 101 $3K
Farmers & Merchants Investments Inc. 0.00% Add +80.8% 85 $3K
MAI Capital Management 0.00% New 70 $2K
Kilter Group LLC 0.00% New 64 $2K
Blue Trust, Inc. 0.00% New 46 $2K
Robbins Farley 0.00% Reduce -81.4% 44 $2K
Rothschild Investment LLC 0.00% Add +700.0% 40 $1K
Cullen/Frost Bankers, Inc. 0.00% New 37 $1K
WealthTrak Capital Management LLC 0.00% No change 35 $1K
Fortitude Family Office, LLC 0.00% New 35 $1K
Steward Partners Investment Advisory, LLC 0.00% Reduce -85.0% 31 $1K
Bare Financial Services, Inc 0.00% Reduce -51.1% 23 $786
Bogart Wealth, LLC 0.00% New 23 $786
Clearstead Trust, LLC 0.00% Reduce -81.0% 20 $684
Versant Capital Management, Inc 0.00% New 20 $684
NewEdge Advisors, LLC 0.00% No change 20 $684
Cromwell Holdings LLC 0.00% New 19 $650
MV Capital Management, Inc. 0.00% Reduce -44.0% 14 $479
Cornerstone Planning Group LLC 0.00% No change 15 $469
Rakuten Securities, Inc. 0.00% Reduce -33.3% 12 $410
SouthState Bank Corp 0.00% Reduce -86.7% 10 $342
Kayne Anderson Rudnick Investment Management LLC 0.00% New 9 $308
CIBC Private Wealth Group LLC 0.00% New 9 $308
IMA Advisory Services, Inc. 0.00% New 8 $274
GPS Wealth Strategies Group, LLC 0.00% Add +500.0% 6 $205
Creative Financial Designs Inc. 0.00% New 5 $171
Atlantic Union Bankshares Corp 0.00% New 5 $171
TFC Financial Management, Inc. 0.00% No change 1 $35
Avion Wealth 0.00% Reduce -72.6% 17 $0

"% of holder's portfolio" is ALGM's weight in each manager's 13F, not the share of Allegro Microsystems Inc. the manager owns.