Allegro MicrosystemsALGM

13F holders, Q4 2024 (December 31)
256holders +8
33new positions
39sold out
2famous investors
$21.86avg. 13F price*

At the end of Q4 2024, 256 institutions reported holding Allegro Microsystems Inc. (ALGM) in their 13F filings, up 8 from Q3 2024. 33 opened new positions and 39 sold out. The largest holders were FMR LLC ($497.9M), Vanguard Group Inc. ($307.9M) and BlackRock, Inc. ($257.0M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors'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 Q3 2024 → Q4 2024

InstitutionsTotal Value
New Positions33$105.4M
Exits39$39.1M

All 13F filers, Q3 2024 → Q4 2024: 15,913,837 shares bought and 19,413,188 shares sold, net −3,499,351 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 256 holders

FMR LLC 0.03% Reduce -19.4% 22,774,491 $497.9M
Vanguard Group Inc. 0.01% Reduce -4.3% 14,082,947 $307.9M
BlackRock, Inc. 0.01% Reduce -8.4% 11,757,608 $257.0M
JPMorgan Chase & Co. 0.02% Reduce -4.5% 10,531,507 $230.2M
State Street Corp. 0.01% Add +7.1% 5,877,482 $128.5M
Capital Research Global Investors 0.03% Add +6.5% 5,768,208 $126.1M
Wellington Management Group LLP 0.02% Add +30.5% 3,993,682 $87.3M
Clearbridge Investments, LLC 0.06% Reduce -13.9% 3,384,997 $74.0M
Adage Capital Partners Gp, L.L.C. 0.10% Add +50.1% 2,733,560 $59.8M
Morgan Stanley 0.00% Add +30.4% 2,656,798 $58.1M
Geode Capital Management, LLC 0.00% Reduce -7.7% 2,364,582 $51.7M
Principal Financial Group Inc. 0.03% Reduce -9.1% 2,271,278 $49.7M
Westfield Capital Management Co. LP 0.21% Add +11.6% 2,247,672 $49.1M
Paloma Partners Management Co 4.26% Add +312.8% 2,103,800 $46.0M
Invesco Ltd. 0.01% Reduce -35.8% 2,088,761 $45.7M
T. Rowe Price Investment Management, Inc. 0.03% Add +31.2% 2,065,879 $45.2M
Analog Century Management LP 2.93% Add +17.1% 2,001,438 $43.8M
Woodline Partners LP 0.27% Add +18.4% 1,833,705 $40.1M
Dimensional Fund Advisors LP 0.01% Add +30.8% 1,719,274 $37.6M
Schonfeld Strategic Advisors LLC 0.22% New 1,620,888 $35.4M
Citadel Advisors 0.03% Add +17.6% 1,575,442 $34.4M
Macquarie Group Ltd. 0.04% Add +4.9% 1,478,775 $32.3M
Two Sigma Investments, LP 0.08% Add +4.0% 1,434,188 $31.4M
Artisan Partners Limited Partnership 0.05% Reduce -5.8% 1,429,250 $31.2M
UBS Group AG 0.01% Add +308.1% 1,341,700 $29.3M
Millennium Management 0.03% Add +96.8% 1,324,953 $29.0M
Norges Bank 0.00% Reduce -5.9% 1,231,766 $26.9M
Meridiem Capital Partners LP 2.36% — 1,150,066 $25.1M
Charles Schwab Investment Management Inc. 0.00% Reduce -16.9% 1,135,347 $24.8M
Northern Trust Corp. 0.00% Add +13.6% 1,074,433 $23.5M
Massachusetts Financial Services Co. 0.01% Reduce -26.2% 1,072,934 $23.5M
Bank of New York Mellon Corp 0.00% Reduce -10.3% 1,060,151 $23.2M
GW&K Investment Management, LLC 0.19% Reduce -5.0% 1,030,322 $22.5M
Summit Partners Public Asset Management, LLC 0.65% New 894,000 $19.5M
Loomis Sayles & Co. L P 0.02% Add +11.4% 873,467 $19.1M
Kettle Hill Capital Management, LLC 3.91% New 823,001 $18.0M
First Trust Advisors LP 0.02% Reduce -24.5% 798,051 $17.4M
Talos Eurisko Asset Management LP 3.84% — 743,144 $16.2M
Walleye Capital LLC 0.17% Add +19576.7% 715,443 $15.6M
Two Sigma Advisers, LP 0.04% Add +12.8% 707,400 $15.5M
Raymond James Financial Inc. 0.01% — 692,835 $15.1M
Comerica Bank 0.06% Add +11.9% 649,735 $14.2M
BNP Paribas Financial Markets 0.01% New 639,257 $14.0M
Silvercrest Asset Management Group LLC 0.09% Add +21.9% 637,571 $13.9M
Balyasny Asset Management L.P. 0.03% Reduce -13.2% 567,121 $12.4M
Alliancebernstein L.P. 0.00% Add +183.1% 528,173 $11.5M
Pier Capital, LLC 1.38% Add +37.3% 442,821 $9.7M
Schroder Investment Management Group 0.01% Add +2.4% 441,623 $9.5M
Alyeska Investment Group, L.P. 0.04% Reduce -26.1% 425,001 $9.3M
Lazard Asset Management LLC 0.01% Add +22.2% 404,702 $8.8M
New York State Common Retirement Fund 0.01% Reduce -34.8% 392,295 $8.6M
Polar Asset Management Partners Inc. 0.16% Add +47.1% 378,704 $8.3M
Sei Investments Co. 0.01% Reduce -1.9% 373,395 $8.2M
Freestone Grove Partners LP 0.10% — 372,491 $8.1M
S Squared Technology, LLC 3.34% No change 367,451 $8.0M
Ameriprise Financial Inc. 0.00% Reduce -81.5% 360,524 $7.9M
Bank of America Corp. 0.00% Reduce -47.6% 339,450 $7.4M
Rhumbline Advisers 0.01% Reduce -10.3% 325,835 $7.1M
Mitsubishi UFJ Asset Management Co., Ltd. 0.01% Add +1.1% 256,867 $6.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +38.4% 269,003 $5.9M
ArrowMark Colorado Holdings LLC 0.08% Add +7.5% 267,249 $5.8M
Trillium Asset Management, LLC 0.15% Reduce -7.5% 256,810 $5.6M
Swiss National Bank 0.00% Add +7.7% 253,200 $5.5M
Nuveen Asset Management, LLC 0.00% Reduce -7.4% 227,956 $5.0M
Goldman Sachs Group Inc. 0.00% Reduce -7.5% 212,014 $4.6M
Holocene Advisors, LP 0.01% Add +6.8% 210,218 $4.6M
Lightrock Netherlands B.V. 1.57% — 203,433 $4.5M
Granahan Investment Management, LLC 0.18% Reduce -28.8% 201,817 $4.4M
Retirement Systems of Alabama 0.02% Reduce -13.1% 199,834 $4.4M
Jain Global LLC 0.12% — 189,962 $4.2M
Legal & General Group Plc 0.00% Reduce -2.9% 189,403 $4.1M
Kennedy Capital Management LLC 0.08% Reduce -28.4% 162,766 $3.6M
Barclays PLC 0.00% Add +106.7% 156,325 $3.4M
LMR Partners LLP 0.07% New 150,000 $3.3M
Corebridge Financial, Inc. 0.02% Reduce -19.5% 147,756 $3.2M
HRT Financial LP 0.02% New 141,888 $3.1M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% Reduce -13.3% 140,245 $3.1M
Wells Fargo & Company 0.00% Reduce -41.3% 137,846 $3.0M
Citigroup Inc. 0.00% Add +244.3% 133,200 $2.9M
New Age Alpha Advisors, LLC 0.11% New 120,623 $2.6M
Allianz Asset Management GmbH 0.00% No change 120,454 $2.6M
California State Teachers Retirement System 0.00% Add +5.2% 120,042 $2.6M
Verition Fund Management LLC 0.01% Add +115.3% 119,551 $2.6M
State of Wisconsin Investment Board 0.01% Reduce -27.4% 115,835 $2.5M
Manufacturers Life Insurance Company, The 0.00% Reduce -95.3% 102,281 $2.2M
State of Tennessee, Department of Treasury 0.01% Add +94.5% 93,365 $2.0M
Frontier Capital Management Co. LLC 0.02% New 91,194 $2.0M
Needham Investment Management LLC 0.15% Add +24.1% 90,000 $2.0M
State Board of Administration of Florida Retirement System 0.00% Add +82.2% 79,863 $1.7M
T. Rowe Price Associates Inc. 0.00% Add +34.4% 79,464 $1.7M
Envestnet Asset Management Inc. 0.00% Reduce -11.2% 76,787 $1.7M
MetLife Investment Management, LLC 0.01% Reduce -7.8% 73,498 $1.6M
Royal Bank of Canada 0.00% Reduce -8.1% 69,369 $1.5M
Mutual of America Capital Management LLC 0.02% Reduce -17.9% 69,005 $1.5M
Susquehanna International Group, LLP 0.00% Reduce -80.7% 67,533 $1.5M
Bryce Point Capital, LLC 0.42% — 66,154 $1.4M
Atom Investors LP 0.18% Add +37.4% 64,716 $1.4M
Marshall Wace, LLP 0.00% New 62,737 $1.4M
Amalgamated Bank 0.01% Reduce -14.6% 61,797 $1.4M
Amundi 0.00% Reduce -2.3% 56,994 $1.3M
State of Alaska, Department of Revenue 0.01% Reduce -49.2% 61,011 $1.3M
Pacer Advisors, Inc. 0.00% Add +14.5% 59,366 $1.3M
Janus Henderson Group PLC 0.00% Add +11.9% 57,329 $1.3M
Ecofi Investissements SA 0.77% Reduce -14.3% 61,200 $1.2M
HSBC Holdings PLC 0.00% Add +178.0% 53,893 $1.2M
Treasurer of the State of North Carolina 0.00% Add +0.6% 54,008 $1.2M
Yousif Capital Management, LLC 0.01% Reduce -18.8% 45,648 $998K
Police & Firemen's Retirement System of New Jersey 0.01% — 45,091 $986K
Concentric Capital Strategies, LP 0.06% New 43,703 $955K
Alps Advisors Inc. 0.01% Add +2.1% 43,371 $948K
Public Employees Retirement System of Ohio 0.00% Reduce -5.0% 42,685 $933K
Jane Street Group, LLC 0.00% New 40,773 $891K
Victory Capital Management Inc. 0.00% Add +25.7% 39,536 $864K
LPL Financial LLC 0.00% Reduce -14.4% 39,499 $863K
Arizona State Retirement System 0.01% Add +7.6% 37,293 $815K
Handelsbanken Fonder AB 0.00% Add +96.8% 36,400 $796K
Louisiana State Employees Retirement System 0.01% Reduce -15.8% 36,300 $794K
Weiss Asset Management LP 0.02% New 35,782 $782K
M&T Bank Corp 0.00% Add +8.3% 35,503 $776K
Group One Trading LLC 0.03% New 34,900 $763K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +5.0% 32,851 $718K
New Mexico Educational Retirement Board 0.02% Add +139.7% 31,881 $697K
Aurora Investment Counsel 0.38% Reduce -48.4% 31,373 $686K
State of Michigan Retirement System 0.00% Reduce -16.3% 30,900 $675K
Thrivent Financial for Lutherans 0.00% Reduce -15.8% 30,736 $672K
Sumitomo Mitsui Trust Group, Inc. 0.00% No change 30,691 $671K
Oak Thistle LLC 0.19% New 29,688 $649K
Northwestern Mutual Investment Management Company, LLC 0.01% Reduce -15.8% 29,033 $635K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -15.8% 28,850 $631K
Guggenheim Capital LLC 0.01% Reduce -26.2% 27,999 $612K
KLP Kapitalforvaltning As 0.00% — 27,600 $603K
Oregon Public Employees Retirement Fund 0.01% Reduce -15.6% 26,537 $580K
Deutsche Bank AG 0.00% Add +295.9% 26,237 $574K
Natixis Advisors, LLC 0.00% Reduce -12.9% 26,171 $572K
Ameritas Investment Partners, Inc. 0.02% Reduce -17.9% 26,164 $572K
Allspring Global Investments Holdings, LLC 0.00% Reduce -3.8% 22,585 $515K
Ensign Peak Advisors, Inc 0.00% No change 23,466 $513K
ProShare Advisors LLC 0.00% Reduce -15.1% 23,191 $507K
Mirae Asset Global Investments Co., Ltd. 0.00% Reduce -4.7% 22,698 $506K
New York State Teachers Retirement System 0.00% No change 22,900 $501K
Teachers Retirement System of the State of Kentucky 0.00% No change 22,733 $497K
KBC Group NV 0.00% Add +522.1% 22,335 $488K
Van Eck Associates Corp. 0.00% Add +202.3% 22,298 $487K
Engineers Gate Manager LP 0.01% New 20,564 $450K
Tower Research Capital LLC (TRC) 0.01% Add +594.9% 20,298 $444K
Pathstone Holdings, LLC 0.00% Reduce -9.2% 19,326 $422K
Advisors Asset Management, Inc. 0.01% Add +3.8% 19,149 $419K
Toronto Dominion Bank 0.00% Add +20.6% 19,085 $417K
American Century Companies Inc. 0.00% Reduce -2.6% 18,742 $410K
Circle Wealth Management, LLC 0.01% Reduce -19.3% 18,208 $398K
Mackenzie Financial Corp. 0.00% Add +2.8% 18,192 $398K
Quantinno Capital Management LP 0.00% Add +15.6% 18,011 $394K
Pictet Asset Management Holding SA 0.00% Add +10.6% 17,653 $386K
Vanguard Personalized Indexing Management, LLC 0.01% Reduce -4.1% 17,645 $386K
Nomura Holdings Inc. 0.00% New 17,333 $379K
PNC Financial Services Group, Inc. 0.00% Add +0.1% 15,261 $334K
Voya Investment Management LLC 0.00% Reduce -6.6% 14,918 $326K
Xponance LLC 0.00% Reduce -4.4% 14,862 $325K
Avior Wealth Management, LLC 0.01% Add +5.3% 14,691 $321K
Bank of Montreal 0.00% Reduce -30.1% 14,405 $315K
Landscape Capital Management, L.L.C. 0.03% New 14,318 $313K
Federated Hermes, Inc. 0.00% Reduce -98.6% 14,064 $307K
Cetera Investment Advisers 0.00% Reduce -9.9% 13,213 $289K
Squarepoint Ops LLC 0.00% Reduce -86.5% 12,803 $280K
Keybank National Association 0.00% Add +14.9% 11,760 $257K
Bailard, Inc. 0.01% New 11,600 $254K
Yorktown Management & Research Co Inc 0.24% No change 11,300 $247K
Commerce Bank 0.00% Reduce -0.7% 11,040 $241K
Creative Planning 0.00% Reduce -13.5% 10,749 $235K
Boothbay Fund Management, LLC 0.01% New 10,628 $232K
Russell Investments Group, Ltd. 0.00% Reduce -85.8% 10,599 $232K
Profund Advisors LLC 0.01% Reduce -22.3% 10,359 $226K
Securian Asset Management, Inc. 0.01% Reduce -18.3% 9,875 $216K
Aster Capital Management (DIFC) Ltd 0.07% New 8,524 $186K
Public Employees Retirement Association of Colorado 0.00% No change 7,635 $167K
Assetmark, Inc. 0.00% Reduce -1.5% 7,523 $164K
Sterling Capital Management LLC 0.00% Add +59.9% 7,364 $161K
Osaic Holdings, Inc. 0.00% Reduce -37.3% 6,108 $131K
PEAK6 LLC 0.00% — 3,607 $79K
Quarry LP 0.02% New 3,601 $79K
Cwm, LLC 0.00% Reduce -4.5% 3,518 $77K
State of Wyoming 0.01% Reduce -3.2% 2,673 $58K
US Bancorp \de 0.00% Reduce -50.5% 2,460 $54K
Venturi Wealth Management, LLC 0.00% New 2,172 $47K
TD Waterhouse Canada Inc. 0.00% New 1,824 $40K
Bayforest Capital Ltd 0.05% — 1,747 $38K
GAMMA Investing LLC 0.00% Reduce -20.2% 1,701 $37K
Parallel Advisors, LLC 0.00% Add +153.8% 1,411 $31K
Caitong International Asset Management Co., Ltd 0.03% — 1,215 $27K
Summit Securities Group LLC 0.01% New 1,118 $24K
CoreCap Advisors, LLC 0.00% Add +3.9% 1,040 $23K
Quent Capital, LLC 0.00% No change 1,023 $22K
Huntington National Bank 0.00% Add +3.0% 961 $21K
UMB Bank, n.a. 0.00% Add +31.8% 842 $18K
Riverview Trust Co 0.02% No change 808 $18K
Fifth Third Bancorp 0.00% Reduce -42.9% 791 $17K
Hurley Capital, LLC 0.01% — 603 $14K
Leonteq Securities AG 0.00% Add +97.7% 605 $13K
Nisa Investment Advisors, LLC 0.00% Reduce -11.8% 556 $12K
Covestor Ltd 0.01% Reduce -37.5% 555 $12K
SBI Securities Co., Ltd. 0.00% — 512 $11K
Steward Partners Investment Advisory, LLC 0.00% Add +1905.3% 381 $8K
Global X Japan Co., Ltd. 0.00% Reduce -26.5% 369 $8K
Lindbrook Capital, LLC 0.00% Add +64.7% 359 $8K
Bessemer Group Inc. 0.00% Add +89.0% 342 $7K
Hexagon Capital Partners LLC 0.00% New 315 $7K
Mendota Financial Group, LLC 0.00% Reduce -93.1% 310 $7K
Coppell Advisory Solutions LLC 0.00% No change 303 $7K
First Horizon Advisors, Inc. 0.00% No change 293 $6K
Principal Securities, Inc. 0.00% Reduce -15.8% 267 $6K
Medallion Wealth Advisors, LLC 0.00% — 250 $5K
Jones Financial Companies LLLP 0.00% Add +278.8% 250 $5K
Brooklyn Investment Group 0.00% Reduce -22.6% 246 $5K
Robbins Farley 0.00% Reduce -99.8% 237 $5K
Spire Wealth Management 0.00% Reduce -3.5% 218 $5K
Farther Finance Advisors, LLC 0.00% Reduce -12.3% 213 $5K
Parkside Financial Bank & Trust 0.00% Add +24.4% 153 $3K
Johnson Financial Group, Inc. 0.00% Reduce -20.2% 134 $3K
Allworth Financial LP 0.00% Reduce -34.2% 127 $3K
Sachetta, LLC 0.00% New 137 $3K
Colonial Trust Co / SC 0.00% New 126 $3K
EverSource Wealth Advisors, LLC 0.00% Add +384.0% 121 $3K
Concord Wealth Partners 0.00% No change 120 $3K
IFP Advisors, Inc 0.00% Reduce -55.4% 33 $3K
Global Retirement Partners, LLC 0.00% Reduce -32.7% 101 $2K
Signaturefd, LLC 0.00% Reduce -90.2% 90 $2K
Quadrant Capital Group LLC 0.00% Reduce -89.5% 86 $2K
St. Johns Investment Management Company, LLC 0.00% No change 50 $1K
CENTRAL TRUST Co 0.00% No change 50 $1K
Clearstead Advisors, LLC 0.00% Reduce -97.4% 50 $1K
Bell Investment Advisors, Inc 0.00% No change 48 $1K
Pineridge Advisors LLC 0.00% Reduce -44.7% 47 $1K
Avion Wealth 0.00% Add +210.0% 62 $1K
Smartleaf Asset Management LLC 0.00% Reduce -83.4% 36 $776
Golden State Wealth Management, LLC 0.00% — 33 $721
Parvin Asset Management, LLC 0.00% — 30 $656
WealthTrak Capital Management LLC 0.00% — 30 $656
Private Wealth Management Group, LLC 0.00% Reduce -71.9% 25 $547
Farmers & Merchants Investments Inc. 0.00% No change 25 $547
Riggs Asset Managment Co. Inc. 0.00% New 21 $454
MassMutual Private Wealth & Trust, FSB 0.00% Reduce -9.1% 20 $437
NewEdge Advisors, LLC 0.00% No change 20 $437
Rakuten Securities, Inc. 0.00% Reduce -18.2% 18 $393
Arax Advisory Partners 0.00% Reduce -55.3% 17 $372
Cornerstone Planning Group LLC 0.00% New 15 $348
Northwestern Mutual Wealth Management Co. 0.00% Reduce -87.5% 15 $328
Raleigh Capital Management Inc. 0.00% Reduce -33.3% 10 $219
Rothschild Investment LLC 0.00% New 5 $109
MV Capital Management, Inc. 0.00% Add +50.0% 3 $66
Activest Wealth Management 0.00% New 2 $44
JFS Wealth Advisors, LLC 0.00% Reduce -95.5% 1 $22
TFC Financial Management, Inc. 0.00% No change 1 $22
AlphaQuest LLC 0.00% New 1 $22
DiNuzzo Private Wealth, Inc. 0.00% Reduce -80.0% 1 $22
Global Financial Private Client, LLC 0.00% New 1 $22
Hemington Wealth Management 0.00% Add +1200.0% 13 $0

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