Allegro MicrosystemsALGM

13F holders, Q1 2025 (March 31)
291holders +35
66new positions
32sold out
3famous investors
$25.14avg. 13F price*

At the end of Q1 2025, 291 institutions reported holding Allegro Microsystems Inc. (ALGM) in their 13F filings, up 35 from Q4 2024. 66 opened new positions and 32 sold out. The largest holders were FMR LLC ($676.5M), Vanguard Group Inc. ($354.3M) and BlackRock, Inc. ($293.3M). 3 famous investors held it, including Ken Griffin (0.1% of Citadel Advisors's portfolio), Israel Englander (0.1% of Millennium Management's portfolio) and Cliff Asness (0.0% of AQR Capital 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 Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions66$174.8M
Exits32$73.8M

All 13F filers, Q4 2024 → Q1 2025: 36,366,153 shares bought and 20,792,906 shares sold, net +15,573,247 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 291 holders

FMR LLC 0.04% Add +18.2% 26,921,116 $676.5M
Vanguard Group Inc. 0.01% Add +0.1% 14,100,017 $354.3M
BlackRock, Inc. 0.01% Reduce -0.7% 11,671,558 $293.3M
Capital Research Global Investors 0.06% Add +91.8% 11,062,801 $278.0M
JPMorgan Chase & Co. 0.02% Reduce -14.6% 8,995,806 $226.1M
State Street Corp. 0.01% Reduce -13.5% 5,084,599 $127.8M
Invesco Ltd. 0.02% Add +131.5% 4,835,641 $121.5M
Citadel Advisors 0.11% Add +175.1% 4,333,613 $108.9M
Wellington Management Group LLP 0.02% Reduce -18.6% 3,248,890 $81.6M
Clearbridge Investments, LLC 0.07% Reduce -6.6% 3,161,587 $79.5M
Frontier Capital Management Co. LLC 0.80% Add +3090.7% 2,909,737 $73.1M
Morgan Stanley 0.00% Reduce -0.3% 2,648,371 $66.6M
Macquarie Group Ltd. 0.08% Add +78.3% 2,636,014 $66.2M
Principal Financial Group Inc. 0.03% Add +6.4% 2,416,102 $60.7M
Millennium Management 0.06% Add +81.4% 2,402,978 $60.4M
Geode Capital Management, LLC 0.00% Add +1.0% 2,388,084 $60.0M
Balyasny Asset Management L.P. 0.15% Add +310.2% 2,326,464 $58.5M
Summit Partners Public Asset Management, LLC 2.74% Add +154.1% 2,271,600 $57.1M
Adage Capital Partners Gp, L.L.C. 0.10% Reduce -22.9% 2,108,423 $53.0M
Dimensional Fund Advisors LP 0.01% Add +14.5% 1,968,079 $49.5M
Analog Century Management LP 3.93% Reduce -3.5% 1,932,170 $48.6M
Kodai Capital Management LP 1.65% New 1,655,806 $41.6M
Freestone Grove Partners LP 0.41% Add +330.4% 1,603,200 $40.3M
UBS Group AG 0.01% Add +8.8% 1,460,418 $36.7M
Segall Bryant & Hamill, LLC 0.51% New 1,311,526 $33.0M
Bank of America Corp. 0.00% Add +281.0% 1,293,235 $32.5M
T. Rowe Price Investment Management, Inc. 0.02% Reduce -38.0% 1,280,246 $32.2M
Norges Bank 0.00% Add +2.8% 1,266,048 $31.8M
Charles Schwab Investment Management Inc. 0.01% Add +2.8% 1,166,915 $29.3M
Northern Trust Corp. 0.00% Add +1.4% 1,089,779 $27.4M
GW&K Investment Management, LLC 0.25% Add +2.4% 1,054,756 $26.5M
Loomis Sayles & Co. L P 0.04% Add +19.1% 1,040,582 $26.1M
Schonfeld Strategic Advisors LLC 0.18% Reduce -36.1% 1,036,364 $26.0M
Bank of New York Mellon Corp 0.01% Reduce -6.0% 996,573 $25.0M
Raymond James Financial Inc. 0.01% Add +43.4% 993,340 $25.0M
Alliancebernstein L.P. 0.01% Add +80.6% 953,689 $24.0M
Cinctive Capital Management LP 1.89% New 942,702 $23.7M
Paloma Partners Management Co 6.42% Reduce -66.3% 708,968 $17.8M
Voya Investment Management LLC 0.02% Add +4384.6% 669,012 $16.8M
Silvercrest Asset Management Group LLC 0.12% Add +3.4% 659,361 $16.6M
Massachusetts Financial Services Co. 0.01% Reduce -43.1% 610,167 $15.3M
First Trust Advisors LP 0.01% Reduce -31.5% 546,947 $13.7M
Oasis Management Co Ltd. 4.57% New 530,210 $13.3M
FIFTHDELTA Ltd 3.18% New 505,600 $12.7M
Ameriprise Financial Inc. 0.00% Add +39.6% 503,226 $12.6M
Walleye Capital LLC 0.15% Reduce -31.6% 489,300 $12.3M
Alyeska Investment Group, L.P. 0.05% Add +10.5% 469,589 $11.8M
Neuberger Berman Group LLC 0.01% New 457,770 $11.5M
Talos Eurisko Asset Management LP 4.79% Reduce -39.5% 449,600 $11.3M
Allspring Global Investments Holdings, LLC 0.02% Add +1647.0% 394,572 $10.3M
S Squared Technology, LLC 5.11% Add +8.2% 397,451 $10.0M
Sei Investments Co. 0.01% Add +2.5% 382,662 $9.6M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +31.8% 354,610 $8.9M
Rhumbline Advisers 0.01% Add +1.4% 330,263 $8.3M
Trillium Asset Management, LLC 0.24% Add +27.2% 326,592 $8.2M
Janus Henderson Group PLC 0.00% Add +470.7% 327,192 $8.1M
Westfield Capital Management Co. LP 0.04% Reduce -86.5% 303,672 $7.6M
ArrowMark Colorado Holdings LLC 0.12% Add +7.9% 288,366 $7.2M
Jain Global LLC 0.15% Add +50.0% 284,953 $7.2M
Pier Capital, LLC 1.20% Reduce -35.7% 284,767 $7.2M
Comerica Bank 0.03% Reduce -58.0% 273,170 $6.9M
Peregrine Capital Management LLC 0.22% New 268,416 $6.7M
Lazard Asset Management LLC 0.01% Reduce -34.6% 264,641 $6.7M
Meridiem Capital Partners LP 0.69% Reduce -78.3% 249,920 $6.3M
Swiss National Bank 0.00% Reduce -1.5% 249,500 $6.3M
Polar Asset Management Partners Inc. 0.27% Reduce -38.7% 232,055 $5.8M
Retirement Systems of Alabama 0.02% Add +0.1% 200,113 $5.0M
Legal & General Group Plc 0.00% Add +3.4% 195,783 $4.9M
Lightrock Netherlands B.V. 1.28% Reduce -5.3% 192,752 $4.9M
Goldman Sachs Group Inc. 0.00% Reduce -10.4% 189,914 $4.8M
Osterweis Capital Management Inc. 0.30% New 179,290 $4.5M
Nuveen, LLC 0.00% — 123,737 $4.1M
TIG Advisors, LLC 0.26% New 161,253 $4.1M
Wells Fargo & Company 0.00% Add +16.8% 161,038 $4.0M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% Add +12.1% 157,197 $4.0M
California State Teachers Retirement System 0.00% Add +29.5% 155,436 $3.9M
State of Wisconsin Investment Board 0.01% Add +31.2% 151,993 $3.8M
BNP Paribas Financial Markets 0.00% Reduce -76.5% 150,574 $3.8M
Corebridge Financial, Inc. 0.02% Reduce -2.3% 144,303 $3.6M
Susquehanna International Group, LLP 0.01% Add +105.5% 138,760 $3.5M
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% Reduce -48.6% 132,115 $3.3M
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.02% Add +354.9% 131,250 $3.3M
Barclays PLC 0.00% Reduce -20.6% 124,176 $3.1M
Polymer Capital Management (US) LLC 0.93% New 122,807 $3.1M
Kennedy Capital Management LLC 0.07% Reduce -26.6% 119,450 $3.0M
Royal Bank of Canada 0.00% Add +70.0% 117,923 $3.0M
Verition Fund Management LLC 0.02% Reduce -3.9% 114,870 $2.9M
Two Sigma Investments, LP 0.01% Reduce -92.4% 108,992 $2.7M
Jane Street Group, LLC 0.00% Add +159.2% 105,698 $2.7M
Envestnet Asset Management Inc. 0.00% Add +36.7% 104,966 $2.6M
Manufacturers Life Insurance Company, The 0.00% Reduce -0.6% 101,635 $2.6M
Citigroup Inc. 0.00% Reduce -25.7% 99,014 $2.5M
Holocene Advisors, LP 0.01% Reduce -55.6% 93,404 $2.3M
Kettle Hill Capital Management, LLC 0.64% Reduce -88.7% 93,393 $2.3M
State of Tennessee, Department of Treasury 0.01% No change 93,365 $2.3M
Squarepoint Ops LLC 0.01% Add +584.1% 87,580 $2.2M
New Age Alpha Advisors, LLC 0.10% Reduce -29.5% 85,071 $2.1M
State Board of Administration of Florida Retirement System 0.00% Add +5.7% 84,393 $2.1M
Lisanti Capital Growth, LLC 0.59% New 79,055 $2.0M
Royce & Associates LP 0.02% New 78,153 $2.0M
State of New Jersey Common Pension Fund D 0.01% New 77,350 $1.9M
T. Rowe Price Associates Inc. 0.00% Reduce -2.7% 77,289 $1.9M
MetLife Investment Management, LLC 0.01% Reduce -1.6% 72,348 $1.8M
Mutual of America Capital Management LLC 0.02% Reduce -2.5% 67,283 $1.7M
Amalgamated Bank 0.01% Reduce -2.4% 60,294 $1.5M
LPL Financial LLC 0.00% Add +49.3% 58,970 $1.5M
Oak Thistle LLC 0.30% Add +97.5% 58,618 $1.5M
Credit Industriel Et Commercial 0.32% New 56,206 $1.4M
New York State Common Retirement Fund 0.00% Reduce -86.2% 54,138 $1.4M
Treasurer of the State of North Carolina 0.01% Reduce -0.8% 53,578 $1.3M
Ecofi Investissements SA 0.84% No change 61,200 $1.3M
Needham Investment Management LLC 0.12% Reduce -44.4% 50,000 $1.3M
Atom Investors LP 0.14% Reduce -28.9% 46,016 $1.2M
Yousif Capital Management, LLC 0.01% Reduce -2.7% 44,412 $1.1M
Group One Trading LLC 0.05% Add +26.9% 44,285 $1.1M
Police & Firemen's Retirement System of New Jersey 0.01% Reduce -6.5% 42,138 $1.1M
Quantinno Capital Management LP 0.01% Add +120.8% 39,762 $999K
Teachers Retirement System of the State of Kentucky 0.01% Add +74.3% 39,633 $996K
Natixis Advisors, LLC 0.00% Add +47.4% 38,563 $969K
Moody National Bank Trust Division 0.10% New 38,467 $967K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +13.3% 37,217 $935K
Arizona State Retirement System 0.01% Reduce -1.1% 36,893 $927K
Public Employees Retirement System of Ohio 0.00% Reduce -14.0% 36,705 $922K
Louisiana State Employees Retirement System 0.02% Add +0.8% 36,600 $920K
HSBC Holdings PLC 0.00% Reduce -33.4% 35,894 $902K
Groupe la Francaise 0.02% New 37,137 $878K
Victory Capital Management Inc. 0.00% Reduce -12.2% 34,716 $872K
IMC-Chicago, LLC 0.03% New 34,676 $871K
New York State Teachers Retirement System 0.00% Add +47.6% 33,800 $849K
Ardsley Advisory Partners LP 0.19% New 32,500 $817K
SG Americas Securities, LLC 0.00% New 32,030 $805K
Granahan Investment Management, LLC 0.04% Reduce -84.2% 31,956 $803K
New Mexico Educational Retirement Board 0.03% No change 31,881 $801K
Alps Advisors Inc. 0.00% Reduce -26.9% 31,686 $796K
State of Michigan Retirement System 0.00% Add +1.3% 31,300 $787K
Handelsbanken Fonder AB 0.00% Reduce -14.3% 31,200 $784K
Sumitomo Mitsui Trust Group, Inc. 0.00% No change 30,691 $771K
Thrivent Financial for Lutherans 0.00% Reduce -0.3% 30,651 $770K
Bryce Point Capital, LLC 0.57% Reduce -54.7% 29,971 $754K
Northwestern Mutual Investment Management Company, LLC 0.01% Add +0.1% 29,066 $730K
Vanguard Personalized Indexing Management, LLC 0.01% Add +52.8% 26,967 $678K
Mirae Asset Global Investments Co., Ltd. 0.00% Add +18.4% 26,883 $668K
Oregon Public Employees Retirement Fund 0.01% No change 26,537 $667K
Simplex Trading, LLC 0.02% New 26,468 $665K
Deutsche Bank AG 0.00% Add +0.4% 26,332 $662K
Ameritas Investment Partners, Inc. 0.02% No change 26,164 $658K
KLP Kapitalforvaltning As 0.00% Reduce -9.8% 24,900 $626K
Creative Planning 0.00% Add +130.9% 24,819 $624K
ClearAlpha Technologies LP 0.54% New 24,000 $603K
Ensign Peak Advisors, Inc 0.00% No change 23,466 $590K
Synovus Financial Corp. 0.01% New 23,034 $579K
Advisors Asset Management, Inc. 0.01% Add +18.4% 22,672 $570K
Prelude Capital Management, LLC 0.06% New 22,160 $557K
Pathstone Holdings, LLC 0.00% Add +12.5% 21,742 $546K
Van Eck Associates Corp. 0.00% Reduce -4.3% 21,343 $536K
ProShare Advisors LLC 0.00% Reduce -9.1% 21,077 $530K
Guggenheim Capital LLC 0.01% Reduce -25.2% 20,945 $526K
Ethic Inc. 0.01% New 19,477 $510K
Pictet Asset Management Holding SA 0.00% Add +13.3% 20,006 $503K
Woodline Partners LP 0.00% Reduce -99.0% 19,222 $483K
Teacher Retirement System of Texas 0.00% New 18,828 $473K
Bank of Montreal 0.00% Add +26.7% 18,251 $459K
Circle Wealth Management, LLC 0.01% No change 18,208 $458K
American Century Companies Inc. 0.00% Reduce -4.1% 17,982 $452K
Keybank National Association 0.00% Add +45.6% 17,125 $430K
PNC Financial Services Group, Inc. 0.00% Add +7.2% 16,353 $411K
Wolverine Trading, LLC 0.01% New 16,433 $409K
Xponance LLC 0.00% Add +5.4% 15,668 $394K
State of Alaska, Department of Revenue 0.00% Reduce -75.3% 15,062 $378K
Boothbay Fund Management, LLC 0.01% Add +41.2% 15,011 $377K
Shay Capital LLC 0.11% New 15,000 $377K
Banque Pictet & Cie SA 0.00% New 14,289 $359K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% New 14,131 $355K
Corient Private Wealth LP 0.00% New 13,554 $341K
Legato Capital Management LLC 0.05% New 13,500 $339K
VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% — 13,169 $331K
Pacer Advisors, Inc. 0.00% Reduce -78.0% 13,043 $328K
AQR Capital Management 0.00% New 13,763 $325K
Russell Investments Group, Ltd. 0.00% Add +17.9% 12,491 $314K
Choreo, LLC 0.00% New 11,762 $296K
Bailard, Inc. 0.01% No change 11,600 $292K
Yorktown Management & Research Co Inc 0.31% No change 11,300 $284K
Avantax Advisory Services, Inc. 0.00% New 11,061 $278K
Commerce Bank 0.00% Reduce -1.0% 10,930 $275K
Fiduciary Trust Co 0.00% New 10,768 $271K
Prudential Financial Inc. 0.00% New 12,644 $263K
Vident Advisory, LLC 0.00% New 10,081 $253K
US Bancorp \de 0.00% Add +304.3% 9,946 $250K
Securian Asset Management, Inc. 0.01% No change 9,875 $248K
Cantor Fitzgerald, L. P. 0.01% New 9,822 $247K
111 Capital 0.05% New 9,443 $237K
Cetera Investment Advisers 0.00% Reduce -28.9% 9,392 $236K
Profund Advisors LLC 0.01% Reduce -10.7% 9,256 $233K
iSAM Funds (UK) Ltd 0.11% New 8,961 $225K
Cresset Asset Management, LLC 0.00% New 8,058 $202K
West Tower Group, LLC 0.53% New 8,000 $201K
Public Employees Retirement Association of Colorado 0.00% No change 7,635 $192K
Federated Hermes, Inc. 0.00% Reduce -46.7% 7,492 $188K
Assetmark, Inc. 0.00% Reduce -4.2% 7,210 $181K
Tower Research Capital LLC (TRC) 0.01% Reduce -66.4% 6,814 $171K
Quarry LP 0.04% Add +85.8% 6,689 $168K
Sterling Capital Management LLC 0.00% Reduce -11.6% 6,509 $164K
FNY Investment Advisers, LLC 0.10% New 6,500 $163K
KBC Group NV 0.00% Reduce -72.6% 6,127 $154K
Osaic Holdings, Inc. 0.00% Reduce -12.0% 5,377 $135K
Cwm, LLC 0.00% Add +22.2% 4,299 $108K
GAMMA Investing LLC 0.01% Add +144.3% 4,155 $104K
Summit Securities Group LLC 0.07% Add +257.8% 4,000 $101K
1620 Investment Advisors, Inc. 0.07% New 3,440 $86K
Caption Management, LLC 0.00% New 3,100 $78K
State of Wyoming 0.01% Add +10.6% 2,956 $74K
DekaBank Deutsche Girozentrale 0.00% New 2,909 $71K
Coldstream Capital Management Inc. 0.00% New 2,730 $69K
Canada Pension Plan Investment Board 0.00% New 2,400 $60K
TD Waterhouse Canada Inc. 0.00% Reduce -8.9% 1,661 $43K
Parallel Advisors, LLC 0.00% Add +19.8% 1,691 $42K
CoreCap Advisors, LLC 0.00% Add +38.2% 1,437 $36K
UMB Bank, n.a. 0.00% Add +68.7% 1,420 $36K
Fifth Third Bancorp 0.00% Add +63.7% 1,295 $33K
Quent Capital, LLC 0.00% No change 1,023 $26K
EverSource Wealth Advisors, LLC 0.00% Add +738.0% 1,014 $25K
Huntington National Bank 0.00% Add +3.8% 997 $25K
Quadrant Capital Group LLC 0.00% Add +987.2% 935 $23K
Brooklyn Investment Group 0.00% Add +252.0% 866 $22K
Nisa Investment Advisors, LLC 0.00% Add +53.6% 854 $21K
Riverview Trust Co 0.02% No change 808 $20K
Lindbrook Capital, LLC 0.00% Add +88.6% 677 $17K
Hurley Capital, LLC 0.01% No change 603 $15K
Covestor Ltd 0.01% Reduce -1.3% 548 $14K
Bessemer Group Inc. 0.00% Add +49.1% 510 $13K
Global X Japan Co., Ltd. 0.00% Add +32.0% 487 $12K
Cloud Capital Management, LLC 0.01% — 513 $12K
SBI Securities Co., Ltd. 0.00% Reduce -24.8% 385 $10K
Signaturefd, LLC 0.00% Add +296.7% 357 $9K
Farther Finance Advisors, LLC 0.00% Add +58.7% 338 $9K
Rise Advisors, LLC 0.00% New 332 $8K
First Horizon Advisors, Inc. 0.00% No change 293 $7K
Medallion Wealth Advisors, LLC 0.00% No change 250 $7K
Jones Financial Companies LLLP 0.00% No change 250 $6K
Robbins Farley 0.00% No change 237 $6K
Principal Securities, Inc. 0.00% No change 267 $6K
Allworth Financial LP 0.00% Add +129.9% 292 $6K
Spire Wealth Management 0.00% No change 218 $5K
Steward Partners Investment Advisory, LLC 0.00% Reduce -45.9% 206 $5K
Whittier Trust Co. of Nevada Inc. 0.00% New 200 $5K
Leonteq Securities AG 0.00% Reduce -68.4% 191 $5K
Larson Financial Group LLC 0.00% New 190 $5K
Parkside Financial Bank & Trust 0.00% Reduce -0.7% 152 $4K
Sachetta, LLC 0.00% No change 137 $3K
Sound Income Strategies, LLC 0.00% New 128 $3K
SVB Wealth LLC 0.00% New 125 $3K
Mather Group, Llc. 0.00% New 125 $3K
Concord Wealth Partners 0.00% No change 120 $3K
MassMutual Private Wealth & Trust, FSB 0.00% Add +480.0% 116 $3K
Clearstead Trust, LLC 0.00% New 105 $3K
Arax Advisory Partners 0.00% Add +470.6% 97 $2K
Bell Investment Advisors, Inc 0.00% Add +83.3% 88 $2K
SouthState Bank Corp 0.00% New 75 $2K
Hexagon Capital Partners LLC 0.00% Reduce -79.4% 65 $2K
St. Johns Investment Management Company, LLC 0.00% No change 50 $1K
Clearstead Advisors, LLC 0.00% No change 50 $1K
Bare Financial Services, Inc 0.00% New 47 $1K
Farmers & Merchants Investments Inc. 0.00% Add +88.0% 47 $1K
Northwestern Mutual Wealth Management Co. 0.00% Add +173.3% 41 $1K
Avion Wealth 0.00% No change 62 $1K
Hantz Financial Services, Inc. 0.00% New 42 $1K
WealthTrak Capital Management LLC 0.00% Add +16.7% 35 $880
Golden State Wealth Management, LLC 0.00% No change 33 $829
Private Wealth Management Group, LLC 0.00% No change 25 $629
MV Capital Management, Inc. 0.00% Add +733.3% 25 $629
Smartleaf Asset Management LLC 0.00% Reduce -30.6% 25 $621
Riggs Asset Managment Co. Inc. 0.00% No change 21 $528
CVA Family Office, LLC 0.00% New 20 $503
NewEdge Advisors, LLC 0.00% No change 20 $503
Hughes Financial Services, LLC 0.00% New 18 $471
Rakuten Securities, Inc. 0.00% No change 18 $452
TD Capital Management LLC 0.00% New 12 $302
Cornerstone Planning Group LLC 0.00% No change 15 $263
Global Financial Private Client, LLC 0.00% Add +900.0% 10 $251
Highline Wealth Partners LLC 0.00% New 8 $201
Rothschild Investment LLC 0.00% No change 5 $126
Sandy Spring Bank 0.00% New 5 $126
True Wealth Design, LLC 0.00% New 5 $126
DiNuzzo Private Wealth, Inc. 0.00% Add +300.0% 4 $101
Bay Harbor Wealth Management, LLC 0.00% New 3 $75
Activest Wealth Management 0.00% Add +50.0% 3 $75
JFS Wealth Advisors, LLC 0.00% No change 1 $26
TFC Financial Management, Inc. 0.00% No change 1 $26
HFM Investment Advisors, LLC 0.00% — 1 $26
GPS Wealth Strategies Group, LLC 0.00% New 1 $25
Hemington Wealth Management 0.00% Add +84.6% 24 $0

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