13F

Stock

Klaviyo, Inc.

KVYO · held by 264 managers

Reported value

$3.09B

Holders

264

+52 new · −51 exited

Holders’ est. mark

−$1.42B

Price effect on 195 books still in the name

Largest holder

$366.9M

SUMMIT PARTNERS L P

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
SUMMIT PARTNERS L P18.9M$366.9M−$245.3MCut−$245.3M
Capital International Investors11.7M$227.8M−$152.3MCut−$187.5M
Fidelity9.79M$190.5M−$108.9MCut−$81.4M
VANGUARD PORTFOLIO MANAGEMENT LLC7.53M$146.6MHeld
ValueAct6.83M$132.8M−$39.8MAdded$33.5M
VANGUARD CAPITAL MANAGEMENT LLC6.16M$119.9MHeld
WELLINGTON MANAGEMENT GROUP LLP5.48M$106.6MNew
ALLIANCEBERNSTEIN L.P.3.05M$99M−$0Cut−$54.6M
MORGAN STANLEY5.07M$98.6M−$65.9MCut−$373.7M
BlackRock, Inc.4.35M$84.7M−$48.3MCut−$35.9M
JPMORGAN CHASE & CO4.3M$81.6M−$48.1MCut−$34.2M
Sands Capital Alternatives, LLC3.65M$71M−$47.5MCut−$47.5M
FULLER & THALER ASSET MANAGEMENT, INC.2.94M$57.3M−$37.1MCut−$35.4M
AMERICAN CENTURY COMPANIES INC2.92M$56.9M−$37.7MCut−$37.1M
TWO SIGMA INVESTMENTS, LP2.89M$56.3M−$28.9MCut−$15.9M
FEDERATED HERMES, INC.2.64M$51.4M−$34.3MCut−$42.8M
Fiera Capital Corp2.4M$46.7M−$30.3MCut−$29M
MILLENNIUM MANAGEMENT LLC2.35M$45.7M−$22.1MCut−$9.52M
GREENOAKS CAPITAL PARTNERS LLC2.32M$45.1M−$30.1MCut−$30.1M
GOLDMAN SACHS GROUP INC2.16M$42.1M−$19.8MCut−$7.43M
Capital World Investors2.04M$39.7M−$14.9MAdded$2.43M
GEODE CAPITAL MANAGEMENT, LLC1.77M$34.5M−$21.8MCut−$19.8M
BANK OF AMERICA CORP /DE/1.69M$32.8M−$11.6MAdded$3.82M
Point72 Asset Management, L.P.1.67M$32.5M−$11.4MAdded$4.07M
Renaissance Technologies1.64M$31.9M−$21.3MCut−$25.3M
Bank of New York Mellon Corp1.51M$29.3M−$18MCut−$15.6M
ArrowMark Colorado Holdings LLC1.49M$29M−$10.6MAdded$2.48M
Clearbridge Investments, LLC1.47M$28.7M−$19.2MCut−$24.6M
SUSQUEHANNA INTERNATIONAL GROUP, LLP1.46M$28.4MNew
Capital Research Global Investors1.35M$26.2M−$17.5MCut−$57.5M
Schonfeld Strategic Advisors LLC1.24M$24.1M−$9.12MAdded$1.32M
Bienville Capital Management, LLC1.23M$23.9M−$12.6MCut−$7.58M
Islander Capital Partners, L.P.1.23M$23.9M−$8.09MAdded$3.67M
Alyeska Investment Group, L.P.1.21M$23.5M−$7.19MAdded$5.58M
FIRST TRUST ADVISORS LP1.18M$23M−$10.5MCut−$3.2M
Citadel1.16M$22.6M−$4.11MAdded$12.4M
State Street1.16M$22.5M−$13.7MCut−$11.6M
MARSHALL WACE, LLP1.14M$22.1M−$1.18MAdded$19.2M
FRANKLIN RESOURCES INC1.08M$21M−$14MCut−$43.3M
Barton Investment Management1.05M$20.4M−$8.72MCut−$1.32M
JANUS HENDERSON GROUP PLC1.03M$20M−$11.5MCut−$8.84M
Icahn Capital911.9K$17.7M−$1.04MAdded$15.2M
VOYA INVESTMENT MANAGEMENT LLC908.6K$17.7M−$11.8MCut−$23.2M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC884.8K$17.2M−$10.5MCut−$9.06M
VANGUARD FIDUCIARY TRUST CO878.2K$17.1MHeld
Delta Global Management LP847.5K$16.5M−$10.2MCut−$9.01M
CANADA PENSION PLAN INVESTMENT BOARD757.1K$14.7M−$7.69MCut−$4.45M
Trexquant Investment LP700K$13.6M−$2.97MAdded$6.2M
Qube Research & Technologies Ltd601.7K$11.7MNew
SANDS CAPITAL MANAGEMENT, LLC595.2K$11.6M−$7.74MCut−$18.6M
Quantinno Capital Management LP548K$10.7M−$7.13MCut−$7.17M
NEW YORK STATE COMMON RETIREMENT FUND458.1K$8.92M−$5.96MCut−$5.96M
Integrated Wealth Concepts LLC429.8K$8.36M−$854KAdded$6.23M
Morangie Management LLC424.1K$8.25M−$5.5MCut−$5.49M
PICTON MAHONEY ASSET MANAGEMENT401.1K$7.8M−$420.1KAdded$6.76M
NORTHERN TRUST CORP370.1K$7.2M−$4.53MCut−$4.11M
TWIN FOCUS CAPITAL PARTNERS, LLC364.7K$7.1M−$4.74MCut−$4.74M
DIMENSIONAL FUND ADVISORS LP322.7K$6.28M−$3.73MCut−$3.03M
BURKEHILL GLOBAL MANAGEMENT, LP300K$5.84M−$3.9MCut−$3.9M
GOODNOW INVESTMENT GROUP, LLC293.1K$5.7M−$3.81MCut−$6.46M
Lisanti Capital Growth, LLC281.1K$5.47M−$2.32MCut−$313.6K
Swiss National Bank259.2K$5.04M−$3.29MCut−$3.16M
BNP PARIBAS FINANCIAL MARKETS245.9K$4.78M−$3.15MCut−$3.09M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC237.4K$4.62M−$2.93MCut−$2.7M
Night Squared LP237.2K$4.62M−$1.77MAdded$192.3K
IEQ CAPITAL, LLC233.3K$4.54M−$1.73MAdded$229.8K
Mayflower Financial Advisors, LLC226.7K$4.41M−$2.95MCut−$2.95M
Connor, Clark & Lunn Investment Management Ltd.209K$4.07M−$1.57MAdded$151.6K
Freestone Grove Partners LP206.7K$4.02M−$2.69MCut−$2.77M
VICTORY CAPITAL MANAGEMENT INC199.4K$3.88M−$2.59MCut−$3.55M
UBS Group AG196.4K$3.82M−$2.56MCut−$11.4M
1832 Asset Management L.P.190K$3.7M−$2.47MCut−$3.67M
CAPITAL FUND MANAGEMENT S.A.184.9K$3.6M−$2.41MCut−$3.96M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP179.2K$3.49MNew
HUNTINGTON NATIONAL BANK166.5K$3.24M−$2.17MCut−$2.17M
TUDOR INVESTMENT CORP ET AL162.9K$3.17M−$147.7KAdded$2.8M
Pathstone Holdings, LLC159.5K$3.1M−$2.07MCut−$2.07M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.157.8K$3.07M$3.07MAdded$3.05M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM155.4K$3.02M−$1.48MCut−$669.5K
WELLS FARGO & COMPANY/MN153.4K$2.99M−$2MCut−$2.96M
FORMULA GROWTH LTD150K$2.92MNew
CITIGROUP INC143.5K$2.79M−$716.8KAdded$1M
Cynosure Group, LLC141.9K$2.76M−$1.85MCut−$1.85M
Focus Partners Wealth141.1K$2.75M−$1.75MCut−$1.62M
OSSIAM133.9K$2.61M−$1.74MCut−$1.74M
Zweig-DiMenna Associates LLC129.2K$2.51MNew
Crestwood Advisors Group, LLC128.9K$2.51M−$1.68MCut−$1.68M
NEUBERGER BERMAN GROUP LLC123.5K$2.4M−$1.61MCut−$12.1M
XTX Topco Ltd122.9K$2.39MNew
Aquatic Capital Management LLC121K$2.35M−$390.2KAdded$1.38M
Mariner, LLC120.1K$2.34M−$1.07MCut−$322.1K
BW Gestao de Investimentos Ltda.118.8K$2.31MNew
ENVESTNET ASSET MANAGEMENT INC112.5K$2.19M−$1.43MCut−$1.37M
SEI INVESTMENTS CO108.4K$2.11M−$946.6KCut−$253.7K
FIL Ltd107.4K$2.09M−$1.4MCut−$1.48M
Cerity Partners LLC106.6K$2.07M−$949.9KCut−$296.1K
ROYAL BANK OF CANADA102.7K$2M−$1.22MCut−$1.05M
Brevan Howard Capital Management LP101.6K$1.98MNew
Legal & General Group Plc96.4K$1.88M−$1.25MCut−$1.96M
JANE STREET GROUP, LLC93.9K$1.83MNew
MANUFACTURERS LIFE INSURANCE COMPANY, THE90K$1.75M−$804.1KCut−$254.8K
VANGUARD ASSET MANAGEMENT, Ltd88.3K$1.72MHeld
Holocene Advisors, LP86.1K$1.68M−$129KAdded$1.35M
Legato Capital Management LLC84.8K$1.65M−$856.9KCut−$488.7K
Cinctive Capital Management LP82.3K$1.6M−$1.07MCut−$4.07M
Squarepoint Ops LLC76.8K$1.49M−$618.9KCut−$51.1K
Man Group plc76.7K$1.49MNew
PNC Financial Services Group, Inc.70.5K$1.37M−$916.3KCut−$915K
AMERIPRISE FINANCIAL INC68.9K$1.34M−$895.9KCut−$15.3M
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna67.9K$1.32M−$883.4KCut−$986.7K
Renaissance Capital LLC65K$1.31M−$805.2KCut−$1.08M
NEEDHAM INVESTMENT MANAGEMENT LLC65K$1.26M−$845.6KCut−$845.6K
D. E. Shaw & Co., Inc.64.5K$1.26M−$839.5KCut−$9.95M
FIFTH THIRD BANCORP64.2K$1.25MNew
Dynamic Technology Lab Private Ltd63.7K$1.24MNew
BloombergSen Inc.61.6K$1.2M−$500.8KCut−$51.4K
ASSETMARK, INC61.5K$1.2M−$799.8KCut−$892.6K
BLAIR WILLIAM & CO/IL61K$1.19M−$793.2KCut−$1.25M
IMC-Chicago, LLC60.8K$1.18MNew
Zurcher Kantonalbank (Zurich Cantonalbank)59.7K$1.16M−$537.2KCut−$179.7K
Vanguard Global Advisers, LLC58.9K$1.15MHeld
Walleye Capital LLC58.5K$1.14M−$760.7KCut−$20.9M
CWM, LLC51.8K$1.01M$66.7KAdded$1.01M
LAVELLE CAPITAL LP51.1K$994.4KNew
RAYMOND JAMES FINANCIAL INC50.9K$991.4K−$662.8KCut−$1.03M
Graham Capital Management, L.P.47.6K$926KNew
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.45.8K$891.5KNew
Orion Porfolio Solutions, LLC43K$836.3K−$559.1KCut−$684K
Invesco Ltd.42.6K$828.5K−$337.8KCut−$14.6K
Ancora Advisors LLC42.3K$823.2K−$550.3KCut−$42.4M
M&G PLC42.8K$813.5K−$556.6KCut−$556.6K
Prospera Financial Services Inc39.5K$767.6KNew
Corient Private Wealth LLC22.8K$736.4K−$3.9KCut−$3.9K
Voleon Capital Management LP37.5K$729.3K−$328.5KCut−$90.5K
ARIZONA STATE RETIREMENT SYSTEM36K$700.8K−$461.7KCut−$451.5K
Clifford Group, LLC34.7K$676K−$170.1KAdded$251.5K
Vanguard Investments Australia, Ltd.32.1K$625.6KHeld
Wilmington Savings Fund Society, FSB29.8K$579.9K−$387.7KCut−$387.7K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC30.1K$575.2KNew
Gryphon Financial Partners LLC29.2K$568.6K−$380.1KCut−$380.1K
HighTower Advisors, LLC29.1K$566.1K−$378.5KCut−$640K
KLP KAPITALFORVALTNING AS28.8K$560.4K−$356.5KCut−$329.2K
Miramar Capital, LLC28.6K$556K−$371.7KCut−$371.7K
Creative Planning28K$544K−$202.3KAdded$39K
CAPSTONE INVESTMENT ADVISORS, LLC26.5K$515.9KNew
State of Wyoming25.8K$501.3K−$66.8KAdded$334.7K
MERCER GLOBAL ADVISORS INC /ADV25.7K$500.2KNew
Catalyst Funds Management Pty Ltd25.5K$496.2KNew
STIFEL FINANCIAL CORP24.9K$484.3K−$323.8KCut−$361.6K
Magnetar Financial LLC24.3K$473.2KNew
Cetera Investment Advisers23.4K$455.3K−$304.4KCut−$374.6K
Nuveen, LLC23.3K$454.1K−$227.9KCut−$114.8K
Fieldview Capital Management, LLC23.3K$453.3K−$139.2KAdded$105.8K
Ensign Peak Advisors, Inc22.9K$445.2K−$57.2KAdded$302.3K
FOX RUN MANAGEMENT, L.L.C.23.1K$438.9KNew
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/21.9K$426.7K−$285.3KCut−$285.3K
Pictet Asset Management Holding SA21.5K$419.3K−$280.3KCut−$285.2K
WINTON GROUP Ltd21.3K$414.9K−$206.5KCut−$100.6K
Snowden Capital Advisors LLC20.5K$398.9K−$229.6KCut−$174.3K
Quantbot Technologies LP20.4K$397.9KNew
Engineers Gate Manager LP20K$388.4K−$259.7KCut−$18.1M
HSBC HOLDINGS PLC19.2K$376.3KNew
Hudson Bay Capital Management LP19.3K$376.2KNew
National Philanthropic Trust18.3K$356.1K−$238.1KCut−$238.1K
Truepoint, Inc.17.6K$342.8K−$229.2KCut−$229.2K
BRANDYWINE MANAGERS, LLC17.4K$338.3K−$226.2KCut−$226.2K
Vanguard Personalized Indexing Management, LLC17.3K$337.1K−$154.6KCut−$48.9K
SIMPLEX TRADING, LLC17.2K$334.9K−$8.82KAdded$312.9K
Northwest & Ethical Investments L.P.17.2K$330.2KNew
CAPTRUST FINANCIAL ADVISORS16.7K$324.8KNew
Aptus Capital Advisors, LLC15.8K$308.4K−$195.9KCut−$180.6K
Abu Dhabi Investment Council Co P.J.S.C15.1K$294.4KHeld
Elo Mutual Pension Insurance Co15K$292.8K−$195.7KCut−$914.8K
Perbak Capital Partners LLP15K$291.7K−$86.1KAdded$76.8K
PIER 88 INVESTMENT PARTNERS LLC14.7K$286.1K−$191.2KCut−$484.1K
Jefferies Financial Group Inc.14.3K$278.4K−$186.1KCut−$14.5M
OPPENHEIMER ASSET MANAGEMENT INC.14.1K$274.3K−$183.2KCut−$183K
DEUTSCHE BANK AG\13K$252.9K−$160KCut−$146.5K
Dakota Wealth Management12.9K$250.9K−$167.8KCut−$167.8K
STATE OF WISCONSIN INVESTMENT BOARD12.8K$249.4K−$91.9KAdded$20.1K
BOOTHBAY FUND MANAGEMENT, LLC12.8K$248.5K−$166.2KCut−$632.1K
EVERGREEN CAPITAL MANAGEMENT LLC12.4K$242.3KNew
BROWN ADVISORY INC12.1K$234.8K−$157KCut−$175.4K
Bridgefront Capital, LLC12K$234K−$156.5KCut−$273.7K
OMERS ADMINISTRATION Corp11.8K$229.6K−$153.5KCut−$426.3K
BARCLAYS PLC11.7K$228.6K−$152.8KCut−$1.66M
BBR PARTNERS, LLC11.6K$225.4K−$150.7KCut−$150.7K
Krilogy Financial LLC12K$221KNew
Ballentine Partners, LLC11.1K$216.3K−$132KCut−$113.1K
LPL Financial LLC11K$213.3K−$119.9KCut−$85.9K
Merit Financial Group, LLC10.5K$204.4KNew
Federation des caisses Desjardins du Quebec10.2K$199.2K−$133.2KCut−$172.4K
Scientech Research LLC10.1K$196.9KNew
JONES FINANCIAL COMPANIES LLLP8.39K$156.7K−$2.48KAdded$150.9K
Walleye Trading LLC6.61K$128.7KNew
Bayforest Capital Ltd5.99K$116.5KNew
LOS ANGELES CAPITAL MANAGEMENT LLC5.58K$108.6K−$3.37KAdded$94.2K
IFP Advisors, Inc5.29K$102.9K−$64.8KCut−$58.9K
Advisors Asset Management, Inc.4.91K$95.6K−$54.3KCut−$39.8K
Farther Finance Advisors, LLC3.81K$74.1K−$45.4KCut−$39K
EverSource Wealth Advisors, LLC3.8K$74K−$2.26KAdded$68.3K
DARA CAPITAL US, INC.3.46K$67.4K−$45KCut−$45K
RHUMBLINE ADVISERS2.15K$41.9K−$28KCut−$28K
SALEM INVESTMENT COUNSELORS INC2.15K$41.8KNew
SIGNATUREFD, LLC2.02K$39.4K−$6.21KAdded$23.9K
Parallel Advisors, LLC2.01K$39.1K−$21.9KCut−$15.5K
Optiver Holding B.V.1.99K$38.7KNew
Advisory Services Network, LLC1.92K$37.3KNew
Allworth Financial LP1.85K$36K−$4.94KAdded$23.7K
NFJ INVESTMENT GROUP, LLC1.58K$30.7K−$976Added$28.3K
QUADRANT CAPITAL GROUP LLC1.44K$28K−$2.2KAdded$22.5K
OSAIC HOLDINGS, INC.1.4K$27.2K−$16.2KCut−$13.3K
Aster Capital Management (DIFC) Ltd836$25.3KNew
SBI Securities Co., Ltd.1.25K$24.2K−$15.4KCut−$14.2K
Essential Partners LLC1.13K$22K−$2.6KAdded$15.5K
Rakuten Securities, Inc.810$15.8K−$6.41KCut−$245
Rockefeller Capital Management L.P.725$14.1K−$9.43KCut−$90K
FIRST HORIZON CORP711$13.8K−$6.76KCut−$3.05K
US BANCORP \DE\688$13.4K−$8.95KCut−$133K
Strengthening Families & Communities, LLC680$13.2K−$8.85KCut−$8.85K
Arax Advisory Partners533$10.4K−$169Added$9.95K
ROTHSCHILD INVESTMENT LLC437$8.5K−$1.95KAdded$3.63K
Wealth Preservation Advisors, LLC293$5.7KNew
WHITTIER TRUST CO OF NEVADA INC272$5.22K−$1.22KAdded$1.62K
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC250$4.87KNew
MAI Capital Management248$4.83K−$3.23KCut−$20.1K
Marquette Asset Management, LLC242$4.71K−$1.69KAdded$488
Bare Financial Services, Inc219$4.26K−$676Added$2.57K
Tower Research Capital LLC (TRC)200$3.89K−$455Added$2.76K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO199$3.87K−$2.59KCut−$2.59K
Osbon Capital Management LLC173$3.37K−$2.25KCut−$2.25K
Bell Investment Advisors, Inc164$3.19K−$391Added$2.22K
Measured Wealth Private Client Group, LLC145$2.82K−$1.89KCut−$1.89K
ALGERT GLOBAL LLC139.2K$2.71K−$1.36KCut−$682
PRICE T ROWE ASSOCIATES INC /MD/134.9K$2.63K−$1.64KCut−$1.47K
ARMSTRONG ADVISORY GROUP, INC120$2.34KNew
GAMMA Investing LLC100$1.95K−$573Added$517
True Wealth Design, LLC100$1.95K−$703Added$192
Private Wealth Management Group, LLC95$1.85KNew
Activest Wealth Management93$1.81K−$989Cut−$658
CVA Family Office, LLC75$1.46K−$507Added$194
HRT FINANCIAL LP72.6K$1.41KNew
Elequin Capital, LP71$1.38KNew
Bogart Wealth, LLC61$1.19K−$442Added$83
CoreCap Advisors, LLC59$1.15K−$768Cut−$768
SouthState Bank Corp53$1.03KNew
Cornerstone Financial Management LLC53$1.03KNew
Park Place Capital Corp37$720−$481Cut−$481
Kilter Group LLC32$623−$247Added$6
North Star Investment Management Corp.30$584New

Who left

Positions as of Q1 2026. 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.