13F

Stock

Allegro Microsystems, Inc.

ALGM · held by 294 managers

Reported value

$3.56B

Holders

294

+4 new · −3 exited

Holders’ est. mark

−$5.76M

Price effect on 9 books still in the name

Largest holder

$623.5M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity23.6M$623.5M—Held
Vanguard14.2M$374.7M—Held
Capital Research Global Investors13.1M$345.9M—Held
BlackRock, Inc.12.2M$321.9M—Held
Invesco Ltd.7.65M$201.8M—Held
JPMORGAN CHASE & CO7.35M$193.8M—Held
State Street5.36M$141.4M—Held
Clearbridge Investments, LLC2.92M$76.9M—Held
ADAGE CAPITAL PARTNERS GP, L.L.C.2.8M$74M—Held
Citadel2.56M$67.5M—Held
GEODE CAPITAL MANAGEMENT, LLC2.39M$63.2M—Held
MORGAN STANLEY2.23M$58.9M−$5.47MAdded$2.29M
DIMENSIONAL FUND ADVISORS LP2.14M$56.5M—Held
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.2.04M$53.7M—Held
Analog Century Management LP1.89M$49.9M—Held
PRINCIPAL FINANCIAL GROUP INC1.74M$46M—Held
NORGES BANK1.46M$38.5M$1.58MAdded$6.64M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.36M$35.9M—Held
MILLENNIUM MANAGEMENT LLC1.34M$35.4M—Held
SEGALL BRYANT & HAMILL, LLC1.25M$32.9M—Held
ALLIANCEBERNSTEIN L.P.1.15M$30.3M—Held
Point72 Asset Management, L.P.1.12M$29.5M—Held
WELLINGTON MANAGEMENT GROUP LLP1.11M$29.2M—Held
NORTHERN TRUST CORP1.01M$26.8M—Held
VOYA INVESTMENT MANAGEMENT LLC940.4K$24.8M—Held
RAYMOND JAMES FINANCIAL INC908.4K$24M—Held
LOOMIS SAYLES & CO L P829.2K$21.9M—Held
Balyasny Asset Management L.P.810.5K$21.4M—Held
GOLDMAN SACHS GROUP INC796.3K$21M—Held
Schonfeld Strategic Advisors LLC754.8K$19.9M—Held
Bank of New York Mellon Corp750.6K$19.8M—Held
MARSHALL WACE, LLP714.6K$18.9M—Held
SILVERCREST ASSET MANAGEMENT GROUP LLC675.7K$17.8M—Held
BANK OF AMERICA CORP /DE/576.7K$15.2M−$1.63MCut−$12.6M
Talos Eurisko Asset Management LP560.2K$14.8M—Held
FRONTIER CAPITAL MANAGEMENT CO LLC524.9K$13.8M—Held
S Squared Technology, LLC457.5K$12.1M—Held
FIRST TRUST ADVISORS LP449K$11.8M—Held
Renaissance Technologies436.2K$11.5M—Held
Engineers Gate Manager LP419.6K$11.1M—Held
Alyeska Investment Group, L.P.400K$10.6M—Held
Man Group plc387.1K$10.2M—Held
AMERIPRISE FINANCIAL INC373.5K$9.85M—Held
Allspring Global Investments Holdings, LLC356K$9.58M—Held
Lightrock Netherlands B.V.354.4K$9.35M—Held
Squarepoint Ops LLC354K$9.34M—Held
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC330.7K$8.72M—Held
Icahn Capital328K$8.65M—Held
TWO SIGMA INVESTMENTS, LP310.9K$8.2M—Held
RHUMBLINE ADVISERS300.2K$7.92M—Held
UBS Group AG274.3K$7.24M—Held
PEREGRINE CAPITAL MANAGEMENT LLC270.9K$7.15M—Held
Swiss National Bank255.4K$6.74M—Held
Nuveen, LLC241.9K$6.38M—Held
Pier Capital, LLC231.2K$6.1M—Held
BNP PARIBAS FINANCIAL MARKETS198.8K$5.24M—Held
Retirement Systems of Alabama189.9K$5.01M—Held
Legal & General Group Plc185.6K$4.9M—Held
JANE STREET GROUP, LLC181.2K$4.78M—Held
TRILLIUM ASSET MANAGEMENT, LLC136K$3.73M—Held
ArrowMark Colorado Holdings LLC139.8K$3.69M—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP134.3K$3.54M—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM123K$3.24M—Held
NEUBERGER BERMAN GROUP LLC119.7K$3.16M—Held
State of Tennessee, Department of Treasury79.2K$2.92M—Held
CITIGROUP INC106.3K$2.8M—Held
STATE OF WISCONSIN INVESTMENT BOARD97.6K$2.57M—Held
SEI INVESTMENTS CO96.9K$2.56M—Held
State of New Jersey Common Pension Fund D92.9K$2.45M—Held
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM92.8K$2.45M—Held
Summit Trail Advisors, LLC92.5K$2.44M—Held
Granahan Investment Management, LLC89.9K$2.37M—Held
BARCLAYS PLC88.3K$2.33M−$249KCut−$2.08M
Candriam S.C.A.87.9K$2.32M—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.83.8K$2.21M—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE82.3K$2.17M—Held
MASSACHUSETTS FINANCIAL SERVICES CO /MA/80.2K$2.11M—Held
Trexquant Investment LP79.5K$2.1M—Held
Mitsubishi UFJ Asset Management Co., Ltd.74.4K$2M—Held
Gotham Asset Management, LLC73.1K$1.93M—Held
TWO SIGMA ADVISERS, LP70.9K$1.87M—Held
WELLS FARGO & COMPANY/MN65.4K$1.72M—Held
Quantinno Capital Management LP65.4K$1.72M—Held
Hel Ved Capital Management Ltd62.9K$1.66M—Held
MetLife Investment Management, LLC60.6K$1.6M—Held
JANUS HENDERSON GROUP PLC57.3K$1.51M—Held
D. E. Shaw & Co., Inc.55.3K$1.46M—Held
Police & Firemen's Retirement System of New Jersey52.3K$1.38M—Held
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC51.6K$1.36M—Held
NEW YORK STATE COMMON RETIREMENT FUND50.9K$1.34M—Held
Qube Research & Technologies Ltd48.1K$1.27M—Held
YOUSIF CAPITAL MANAGEMENT, LLC38.3K$1.26M—Held
GUGGENHEIM CAPITAL LLC45.6K$1.2M—Held
KENNEDY CAPITAL MANAGEMENT LLC44.9K$1.18M—Held
Zurcher Kantonalbank (Zurich Cantonalbank)42.7K$1.13M—Held
Sphera Management Technology Funds Ltd40K$1.06M—Held
NEEDHAM INVESTMENT MANAGEMENT LLC40K$1.06M—Held
HSBC HOLDINGS PLC39.8K$1.05M—Held
MOODY NATIONAL BANK TRUST DIVISION38.5K$1.01M—Held
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO37.9K$999.6K—Held
ROYAL BANK OF CANADA37.5K$990K—Held
ENVESTNET ASSET MANAGEMENT INC36.8K$971K—Held
INTECH INVESTMENT MANAGEMENT LLC36.2K$954.2K—Held
ARIZONA STATE RETIREMENT SYSTEM36K$950.7K—Held
Entropy Technologies, LP35.9K$946.9K—Held
Louisiana State Employees Retirement System34.3K$904.8K—Held
FOX RUN MANAGEMENT, L.L.C.32.7K$863.9K—Held
Pinnacle Financial Partners, Inc.32.5K$856.7K—Held
LPL Financial LLC32.5K$856.6K—Held
Pacer Advisors, Inc.32.3K$852.4K—Held
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS31K$818.8K—Held
MML INVESTORS SERVICES, LLC30.9K$814.9K—Held
COMERICA BANK29.9K$788.9K—Held
ALPS ADVISORS INC29.8K$785.8K—Held
LECAP ASSET MANAGEMENT LTD29.7K$783.4K—Held
STATE OF MICHIGAN RETIREMENT SYSTEM29.3K$772.9K—Held
Bridgefront Capital, LLC28.8K$759.8K—Held
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC27.8K$732K—Held
PEAK6 LLC27.5K$726.6K—New
KLP KAPITALFORVALTNING AS27.5K$725.5K—Held
TUDOR INVESTMENT CORP ET AL25.7K$677K—New
XTX Topco Ltd25.6K$676.3K—Held
Creative Planning25.4K$670.2K—Held
PRENTISS SMITH & CO INC25.1K$661.1K—Held
OREGON PUBLIC EMPLOYEES RETIREMENT FUND24.7K$652.6K—Held
Advisors Asset Management, Inc.23.7K$626.4K—Held
Sumitomo Mitsui Trust Group, Inc.23.7K$625.5K—Held
LAZARD ASSET MANAGEMENT LLC23.7K$625.5K—Held
Amundi23.3K$613.5K—Held
Tidal Investments LLC23.1K$610.3K—Held
Ameritas Investment Partners, Inc.22.7K$599.6K—Held
Graham Capital Management, L.P.22.5K$594.4K—Held
Russell Investments Group, Ltd.21.2K$560.5K—Held
Pictet Asset Management Holding SA20.8K$548.4K—Held
ProShare Advisors LLC20.8K$548K—Held
DEUTSCHE BANK AG\20.2K$532.4K—Held
Ethic Inc.19.1K$503K—Held
VICTORY CAPITAL MANAGEMENT INC18.7K$493.9K—Held
Campbell & CO Investment Adviser LLC18.3K$481.6K—Held
CANADA PENSION PLAN INVESTMENT BOARD18K$474.8K—Held
Integrated Wealth Concepts LLC18K$474.2K—Held
Parallax Volatility Advisers, L.P.17.3K$456.1K—Held
TSG Advice Partners, LLC17.2K$452.9K—Held
Universal- Beteiligungs- und Servicegesellschaft mbH17.1K$450.7K—Held
Rockefeller Capital Management L.P.16.9K$445.2K—Held
Vontobel Holding Ltd.16.4K$433K—Held
ALTFEST L J & CO INC16.3K$429.7K—Held
VIRGINIA RETIREMENT SYSTEMS ET Al16.2K$426.5K—Held
Corient Private Wealth LLC14.5K$407.6K—Held
Vanguard Personalized Indexing Management, LLC14.3K$376.4K—Held
Vident Advisory, LLC14.2K$375.1K—Held
BANK OF MONTREAL /CAN/14.1K$371.3K—Held
Circle Wealth Management, LLC14K$369.4K—Held
Walleye Trading LLC13.9K$366K—Held
KEYBANK NATIONAL ASSOCIATION/OH13.6K$357.8K—Held
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC11.1K$349.4K—Held
Holocene Advisors, LP13K$341.9K—Held
INCEPTIONR LLC12.9K$341.3K—Held
Mitsubishi UFJ Trust & Banking Corp12.8K$336.4K—Held
XPONANCE LLC12.7K$336K—Held
TEACHER RETIREMENT SYSTEM OF TEXAS12.7K$335.2K—Held
Pinpoint Asset Management (Singapore) Pte. Ltd.12.1K$317.9K—Held
Cetera Investment Advisers11.9K$313.9K—Held
Mirae Asset Global Investments Co., Ltd.11.9K$313.8K—Held
PNC Financial Services Group, Inc.11.8K$311.8K—Held
Pathstone Holdings, LLC11.8K$311.6K—Held
Yorktown Management & Research Co Inc11.3K$298.1K—Held
BANQUE PICTET & CIE SA10.8K$284.1K—Held
State of Wyoming10.7K$281.4K—Held
IMC-Chicago, LLC10.6K$280.1K—Held
MERCER GLOBAL ADVISORS INC /ADV10.5K$277K—Held
AMERICAN CENTURY COMPANIES INC10.3K$271K—Held
COMMERCE BANK10.3K$270.5K—Held
STIFEL FINANCIAL CORP10.1K$265.1K—Held
FEDERATED HERMES, INC.9.97K$263.1K—Held
PROFUND ADVISORS LLC9.24K$243.9K—Held
SECURIAN ASSET MANAGEMENT, INC9.03K$238.1K—Held
MACKENZIE FINANCIAL CORP8.81K$235.9K—Held
PRUDENTIAL FINANCIAL INC8.16K$215.3K—Held
EVERGREEN CAPITAL MANAGEMENT LLC8.05K$212.3K—Held
Aquatic Capital Management LLC7.99K$210.9K—Held
JUPITER ASSET MANAGEMENT LTD7.93K$209.2K—Held
Skandinaviska Enskilda Banken AB (publ)7.8K$205.6K—Held
Sterling Capital Management LLC7.28K$192.1K—Held
Ensign Peak Advisors, Inc6.37K$167.9K—Held
ASSETMARK, INC5.63K$148.6K—Held
1620 INVESTMENT ADVISORS, INC.4.58K$120.8K—Held
Walleye Capital LLC3.6K$95.1K—Held
OSAIC HOLDINGS, INC.3.26K$86K—Held
Tower Research Capital LLC (TRC)3.25K$85.7K—Held
GAMMA Investing LLC2.96K$78.2K—Held
STRS OHIO2.95K$77.8K—Held
NISA INVESTMENT ADVISORS, LLC2.67K$70.5K—Held
TD Waterhouse Canada Inc.2.46K$64.8K—Held
NewEdge Advisors, LLC2.4K$63.3K—Held
SBI Securities Co., Ltd.2.3K$60.7K—Held
Federation des caisses Desjardins du Quebec2.18K$57.4K—Held
Farther Finance Advisors, LLC2.14K$56.5K—Held
US BANCORP \DE\2K$52.9K—Held
AlphaQuest LLC1.78K$46.9K—Held
UMB Bank, n.a.1.69K$44.6K—Held
CIBC Private Wealth Group LLC1.34K$35.5K—Held
Kestra Advisory Services, LLC1.28K$33.8K—Held
Sound Income Strategies, LLC1.01K$33.6K—Held
FIFTH THIRD BANCORP1.17K$30.9K—Held
Quent Capital, LLC997$26.3K—Held
CoreCap Advisors, LLC900$23.7K—Held
Allworth Financial LP818$21.6K−$1.91KAdded$1.78K
LOS ANGELES CAPITAL MANAGEMENT LLC616$18.6K—Held
Parallel Advisors, LLC706$18.6K—Held
GW&K Investment Management, LLC669.1K$17.7K—Held
QUADRANT CAPITAL GROUP LLC653$17.2K—Held
SIGNATUREFD, LLC653$17.2K—Held
Hurley Capital, LLC603$15.9K—Held
ROTHSCHILD INVESTMENT LLC578$15.2K—Held
EverSource Wealth Advisors, LLC551$14.5K—Held
Arax Advisory Partners393$10.4K—Held
Clearstead Advisors, LLC388$10.2K—Held
Activest Wealth Management385$10.2K—Held
JONES FINANCIAL COMPANIES LLLP378$9.97K—Held
T. Rowe Price Investment Management, Inc.349.3K$9.22K—Held
Global X Japan Co., Ltd.315$8.31K—Held
Parkside Financial Bank & Trust266$7.02K—Held
Spire Wealth Management233$6.15K—Held
HUNTINGTON NATIONAL BANK231$6.09K—Held
Smartleaf Asset Management LLC223$5.98K—Held
MassMutual Private Wealth & Trust, FSB196$5.17K—Held
Sunbelt Securities, Inc.185$4.88K—Held
FLAGSHIP HARBOR ADVISORS, LLC178$4.7K—New
Truvestments Capital LLC154$4.06K—Held
Global Retirement Partners, LLC139$3.67K—Held
SJS Investment Consulting Inc.137$3.62K—Held
Leonteq Securities AG135$3.56K−$381Cut−$381
Hilton Head Capital Partners, LLC125$3.3K—Held
Essential Partners LLC123$3.25K−$347Cut−$31.8K
Concord Wealth Partners120$3.17K—Held
Rakuten Securities, Inc.110$2.9K—Held
PRICE T ROWE ASSOCIATES INC /MD/101.4K$2.67K—Held
Bell Investment Advisors, Inc101$2.67K—Held
HRT FINANCIAL LP90.3K$2.38K—Held
WHITTIER TRUST CO OF NEVADA INC75$2.37K—Held
FARMERS & MERCHANTS INVESTMENTS INC85$2.24K—Held
SouthState Bank Corp81$2.14K—Held
MAI Capital Management70$1.85K—Held
Kilter Group LLC61$1.61K−$172Cut−$756
Pinnacle Wealth Planning Services, Inc.57$1.5K—Held
VAN ECK ASSOCIATES CORP55.5K$1.46K—Held
AMALGAMATED BANK54.3K$1.43K—Held
IFP Advisors, Inc54$1.43K−$76Added$637
Treasurer of the State of North Carolina51.6K$1.36K—Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.