13F

Stock

Amplitude, Inc.

AMPL · held by 216 managers

Reported value

$562.3M

Holders

216

+41 new · −38 exited

Holders’ est. mark

−$230.3M

Price effect on 169 books still in the name

Largest holder

$76.1M

WELLINGTON MANAGEMENT GROUP LLP

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
WELLINGTON MANAGEMENT GROUP LLP11.2M$76.1M−$9.35MAdded$53.3M
BlackRock, Inc.10.2M$69.3M−$46.6MCut−$44M
VANGUARD PORTFOLIO MANAGEMENT LLC6.17M$42MHeld
VANGUARD CAPITAL MANAGEMENT LLC4.09M$27.9MHeld
Fidelity3.31M$22.6M−$2.12MAdded$17.4M
SC US (TTGP), LTD.2.8M$19.1M−$13.3MCut−$13.3M
BAILLIE GIFFORD & CO2.63M$18M−$12.5MCut−$13.8M
Nuveen, LLC2.55M$17.4M−$12.2MCut−$13.2M
State Street2.43M$16.6M−$11MCut−$10.1M
Point72 Asset Management, L.P.2.41M$16.4M−$11.5MCut−$24.1M
GEODE CAPITAL MANAGEMENT, LLC2.33M$15.9M−$10.6MCut−$9.92M
MILLENNIUM MANAGEMENT LLC2.03M$13.9M−$9.67MCut−$12.2M
JACOBS LEVY EQUITY MANAGEMENT, INC1.73M$11.8M−$276.4KAdded$11.1M
Optimus Prime Fund Management Co., Ltd.1.58M$10.8M−$7.52MCut−$7.52M
MONIMUS CAPITAL MANAGEMENT, LP1.26M$8.62M−$1.77MAdded$4.32M
ArrowMark Colorado Holdings LLC1.26M$8.57M−$5.98MCut−$8.62M
Icahn Capital1.24M$8.42M−$4.01MCut−$1.34M
Meros Investment Management, LP1.16M$7.94M−$4.1MCut−$2.04M
GAGNON SECURITIES LLC1.06M$7.23M−$3.33MCut−$864.8K
MORGAN STANLEY920.5K$6.28M−$3.26MCut−$1.66M
NORTHERN TRUST CORP868.5K$5.92M−$3.92MCut−$3.6M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC733.7K$5M−$3.49MCut−$4.01M
Squarepoint Ops LLC712.4K$4.86M−$3.39MCut−$6.35M
TWO SIGMA INVESTMENTS, LP691.7K$4.72M−$3.29MCut−$7.34M
VANGUARD FIDUCIARY TRUST CO660.8K$4.51MHeld
Gagnon Advisors, LLC635K$4.33M−$2.18MCut−$963.9K
DIMENSIONAL FUND ADVISORS LP617.7K$4.21M−$628.9KAdded$2.68M
GOLDMAN SACHS GROUP INC598.3K$4.08M−$2.85MCut−$10M
Qube Research & Technologies Ltd597.4K$4.07MNew
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP576.3K$3.93MNew
BANK OF AMERICA CORP /DE/556.1K$3.79M−$2.65MCut−$3.85M
ALLIANCEBERNSTEIN L.P.317.6K$3.68M−$0Cut−$68.6M
WESTERLY CAPITAL MANAGEMENT, LLC500K$3.41M−$2.38MCut−$2.38M
Man Group plc478.3K$3.26M−$659.4KAdded$1.66M
Cerity Partners LLC462.8K$3.16M−$2.2MCut−$2.25M
Y-Intercept (Hong Kong) Ltd454.1K$3.1MNew
FIRST TRUST ADVISORS LP424.6K$2.9M−$436.7KAdded$1.83M
Trigran Investments, Inc.380.5K$2.6MNew
Quantinno Capital Management LP370.5K$2.53M−$98.9KAdded$2.29M
Portolan Capital Management, LLC359.6K$2.45M−$1.71MCut−$4.03M
MERCER GLOBAL ADVISORS INC /ADV329.4K$2.25M−$669.8KAdded$617.3K
JPMORGAN CHASE & CO328.9K$2.24M−$987.7KCut−$156.1K
VOYA INVESTMENT MANAGEMENT LLC321.7K$2.19M−$1.53MCut−$1.92M
Toronado Partners, LLC318.8K$2.17M−$1.52MCut−$6.81M
Madison Asset Management, LLC314.1K$2.14M−$371.3KAdded$1.24M
LIGHT STREET CAPITAL MANAGEMENT, LLC292.8K$2M−$1.39MCut−$15.4M
G2 Investment Partners Management LLC270K$1.84M−$1.29MCut−$1.45M
Verition Fund Management LLC268.1K$1.83M−$379.3KAdded$905.9K
Trexquant Investment LP266.1K$1.82M−$1.27MCut−$3.33M
Bank of New York Mellon Corp262.5K$1.79M−$1.25MCut−$1.27M
Circumference Group LLC238K$1.62M−$1.13MCut−$1.13M
Swiss National Bank181.2K$1.24M−$862.5KCut−$862.5K
Creative Planning180K$1.23M−$335.1KAdded$412.4K
MARATHON CAPITAL MANAGEMENT171.6K$1.17M−$421.7KAdded$144.1K
Savant Capital, LLC167.6K$1.14M−$797.6KCut−$831.8K
IEQ CAPITAL, LLC164.6K$1.12M−$731.1KCut−$656.1K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC163.9K$1.12M−$757.2KCut−$724.1K
HSBC HOLDINGS PLC159.3K$1.11M−$663.8KCut−$543.7K
DEUTSCHE BANK AG\161.4K$1.1M−$768.1KCut−$3.12M
BOOTHBAY FUND MANAGEMENT, LLC154.4K$1.05M−$345.6KAdded$212.2K
S Squared Technology, LLC150.4K$1.03MNew
Invesco Ltd.135.2K$922.1K−$541.1KCut−$394.4K
Russell Investments Group, Ltd.131.6K$897.7K−$363.9KAdded$14K
SUSQUEHANNA INTERNATIONAL GROUP, LLP123.7K$843.6K−$588.8KCut−$1.69M
UBS Group AG122K$832.2K−$580.8KCut−$5.48M
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC118.9K$811K−$566.1KCut−$1.72M
Connor, Clark & Lunn Investment Management Ltd.114.4K$780.2K−$544.6KCut−$1.56M
RHUMBLINE ADVISERS113.5K$773.7K−$525.8KCut−$505.5K
Utah Retirement Systems112.8K$769.3K−$536.9KCut−$536.9K
UNITED CAPITAL FINANCIAL ADVISORS, LLC110.6K$754.3K−$525.4KCut−$523.9K
CANADA PENSION PLAN INVESTMENT BOARD102.9K$701.8K−$489.8KCut−$629.9K
SEI INVESTMENTS CO100K$682.2K−$476.2KCut−$514.1K
WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD99.1K$675.5K−$471.5KCut−$471.5K
Walleye Capital LLC90.3K$615.6K−$429.6KCut−$4.47M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM88K$599.8K−$418.6KCut−$422.4K
NANO CAP NEW MILLENNIUM GROWTH FUND L P60K$596.8K−$98.1KCut−$98K
BNP PARIBAS FINANCIAL MARKETS86K$586.5K−$343.4KCut−$249K
Inspire Investing, LLC74.7K$509.7K−$191.8KAdded$43K
Legal & General Group Plc74.3K$507.1K−$353.9KCut−$507.2K
PDT Partners, LLC67K$456.7K−$318.7KCut−$924K
Palogic Value Management, L.P.65K$443.3KNew
CWM, LLC62.8K$428.4K$306KAdded$427.8K
DRW Securities, LLC59.7K$406.9KNew
VANGUARD ASSET MANAGEMENT, Ltd59.4K$404.8KHeld
Cresset Asset Management, LLC55.7K$379.8K−$265.1KCut−$273.3K
Zurcher Kantonalbank (Zurich Cantonalbank)53.4K$364.5K−$254.4KCut−$254.4K
MetLife Investment Management, LLC52.7K$359.2K−$244.4KCut−$235.4K
STRS OHIO51.8K$353.3K−$246.6KCut−$246.6K
STATE OF WISCONSIN INVESTMENT BOARD49.7K$338.8K−$106KAdded$80.9K
Renaissance Technologies47K$320.8K−$223.9KCut−$624.7K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.46.1K$314.3K−$203.7KCut−$181.2K
Brevan Howard Capital Management LP45.5K$310.6K−$67.5KAdded$146.3K
Allspring Global Investments Holdings, LLC43.3K$294K−$179.3KCut−$402.9K
PRELUDE CAPITAL MANAGEMENT, LLC43.1K$293.7KNew
CenterBook Partners LP40.9K$279KNew
Blue Trust, Inc.40.2K$274.2K−$165.3KCut−$127.9K
TWINBEECH CAPITAL LP39.3K$268KNew
Parallel Advisors, LLC39.3K$268K−$186.2KCut−$185K
Vanguard Global Advisers, LLC37.6K$256.6KHeld
WELLS FARGO & COMPANY/MN36.4K$248.4K−$173.4KCut−$976.2K
Citadel36.2K$246.8K−$172.2KCut−$15.7M
Mariner, LLC36K$245.6K−$167KCut−$159.5K
FOX RUN MANAGEMENT, L.L.C.35.2K$239.4K−$168.3KCut−$645.8K
JANUS HENDERSON GROUP PLC34.8K$237K−$165.3KCut−$165.3K
DARK FOREST CAPITAL MANAGEMENT LP34.7K$236.9KNew
Magnetar Financial LLC33.1K$225.8K−$50.2KAdded$103.5K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC32.7K$223.8K−$148.2KCut−$226.2K
EntryPoint Capital, LLC31.8K$216.9KNew
Inscription Capital, LLC30.5K$208.2KNew
PNC Financial Services Group, Inc.27.8K$189.4K−$132.2KCut−$135.6K
EVERGREEN CAPITAL MANAGEMENT LLC27.1K$185KNew
MANUFACTURERS LIFE INSURANCE COMPANY, THE26.9K$183.7K−$128.2KCut−$332.3K
ARIZONA STATE RETIREMENT SYSTEM25.2K$172.2K−$120.2KCut−$125K
BARCLAYS PLC24.2K$164.9K−$115.1KCut−$2.51M
Police & Firemen's Retirement System of New Jersey24.1K$164.5K−$114.8KCut−$114.8K
JANE STREET GROUP, LLC23.8K$162K−$113.1KCut−$2.46M
NEW YORK STATE COMMON RETIREMENT FUND23.7K$161.5K−$112.7KCut−$178.3K
TRUE Private Wealth Advisors23.6K$160.7K−$112.1KCut−$112.1K
Jasper Ridge Partners, L.P.23K$156.9K−$109.5KCut−$109.5K
AMERICAN CENTURY COMPANIES INC22.8K$155.6K−$108.6KCut−$108.6K
HighTower Advisors, LLC22.6K$154.1K−$107.5KCut−$283.6K
State of Wyoming20.7K$141.3K−$98.7KCut−$199.4K
Vanguard Personalized Indexing Management, LLC20.1K$137.1KNew
Numerai GP LLC20K$136.3K−$89.6KCut−$81.7K
Summit Trail Advisors, LLC19.9K$135.9K−$54.2KAdded$4.17K
INTECH INVESTMENT MANAGEMENT LLC19.8K$134.8K−$94.1KCut−$186.5K
GROUP ONE TRADING LLC19.8K$134.8KNew
KLP KAPITALFORVALTNING AS19.5K$133K−$92.8KCut−$92.8K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM19.5K$132.8K−$92.7KCut−$92.7K
Vanguard Investments Australia, Ltd.18.8K$128.4KHeld
Corient Private Wealth LLC16.5K$112.6KNew
Pictet Asset Management Holding SA16.3K$111K−$77.5KCut−$77.5K
TEACHER RETIREMENT SYSTEM OF TEXAS16.2K$110.5K−$77.1KCut−$82.2K
LAZARD ASSET MANAGEMENT LLC16K$108.9K−$76KCut−$168.9K
OSAIC HOLDINGS, INC.15.9K$108.3K−$24.2KAdded$49.4K
MIRABELLA FINANCIAL SERVICES LLP15.6K$106.7KNew
Silver Lake Group, L.L.C.15.6K$106.5K−$74.3KCut−$74.3K
XTX Topco Ltd15.6K$106.3K−$74.2KCut−$168.4K
PRUDENTIAL FINANCIAL INC15K$102.1K−$71.2KCut−$376.9K
ProShare Advisors LLC14.2K$97.1K−$67.8KCut−$98.3K
CAPTRUST FINANCIAL ADVISORS13.7K$93.3KNew
Brooklyn Investment Group12.7K$86.7KNew
Versant Capital Management, Inc12.6K$85.7K−$11.9KAdded$56.9K
Frec Markets, Inc.12.5K$85KNew
Polymer Capital Management (US) LLC12K$81.6KNew
Krilogy Financial LLC11.4K$77.1KNew
EP Wealth Advisors, LLC11K$75KNew
Pallas Capital Advisors LLC10.9K$74.5K−$52KCut−$58.5K
Merit Financial Group, LLC10.7K$73K−$49.3KCut−$46.9K
Focus Partners Wealth10.6K$72.2KNew
Centiva Capital, LP10.2K$69.2KNew
Scientech Research LLC10K$68.4KNew
Morse Asset Management, Inc10K$68.3K−$47.6KCut−$47.6K
CITIGROUP INC8.32K$56.7K−$15.6KAdded$18.9K
Ameritas Investment Partners, Inc.7.47K$50.9K−$35.5KCut−$35.5K
Tower Research Capital LLC (TRC)7.25K$49.4K−$34.5KCut−$59.9K
SIMPLEX TRADING, LLC6.5K$44.4KNew
QUADRANT CAPITAL GROUP LLC4.03K$27.5K−$291Added$26.8K
Allworth Financial LP2.47K$16.9K−$5.8KAdded$2.76K
Sunbelt Securities, Inc.2.12K$14.5K−$142Added$14.1K
SIGNATUREFD, LLC2.12K$14.4K−$452Added$13.3K
Kemnay Advisory Services Inc.2.02K$13.8K−$9.63KCut−$104.8K
Rockefeller Capital Management L.P.1.95K$13.3K−$9.27KCut−$9.27K
GAMMA Investing LLC1.82K$12.4K−$4.53KAdded$1.41K
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1.77K$12.1K$7.11KAdded$12.1K
Essential Partners LLC1.75K$12K−$8.35KCut−$9.06K
US BANCORP \DE\1.69K$11.5K−$8.03KCut−$9.75K
NISA INVESTMENT ADVISORS, LLC1.48K$10.1K−$7.05KCut−$9.15K
EverSource Wealth Advisors, LLC1.45K$9.88K−$6.89KCut−$12.6K
JONES FINANCIAL COMPANIES LLLP1.43K$9.16K−$7.39KCut−$7.87K
Root Financial Partners, LLC1.06K$7.24KNew
Arax Advisory Partners1.04K$7.07K−$1.75KAdded$2.81K
MONTAG A & ASSOCIATES INC1K$6.82K−$4.76KCut−$4.76K
SUMMIT SECURITIES GROUP LLC1K$6.82K−$4.76KCut−$10.6K
Optiver Holding B.V.944$6.44K−$1.37KAdded$3.1K
ACADIAN ASSET MANAGEMENT LLC800K$5.45K−$2.53KCut−$699
ROYAL BANK OF CANADA604$5K−$1.91KCut−$38K
ROTHSCHILD INVESTMENT LLC700$4.77K−$2.79KCut−$2.02K
Farther Finance Advisors, LLC652$4.43K−$3.12KCut−$7.26K
Sterling Capital Management LLC638$4.35K−$2.83KCut−$2.53K
Advisory Services Network, LLC622$4.24KNew
Bell Investment Advisors, Inc553$3.77KNew
Marquette Asset Management, LLC533$3.64K−$976Added$1.26K
Wealth Preservation Advisors, LLC497$3.39KNew
IFP Advisors, Inc432$2.95K−$2.06KCut−$7.74K
MAI Capital Management389$2.65K−$248Added$2.05K
JPL Wealth Management, LLC370$2.52KNew
SBI Securities Co., Ltd.359$2.45K−$1.71KCut−$4.42K
LOS ANGELES CAPITAL MANAGEMENT LLC314$2.14K−$921Cut−$921
Walleye Trading LLC293$2KNew
TimesSquare Capital Management, LLC287$1.96K−$1.37KCut−$29.1M
Murphy & Mullick Capital Management Corp250$1.71K−$1.19KCut−$1.19K
True Wealth Design, LLC237$1.62K−$1.13KCut−$3.03K
Rachor Investment Advisory Services, LLC201$1.37K−$623Cut−$146
HighMark Wealth Management LLC160$1.09K−$761Cut−$761
ALGERT GLOBAL LLC157.8K$1.08K−$752Cut−$2.63K
PRICE T ROWE ASSOCIATES INC /MD/120K$819−$572Cut−$607
MassMutual Private Wealth & Trust, FSB85$580−$76Added$395
FIFTH THIRD BANCORP81$552New
NATIONAL BANK OF CANADA /FI/70$477−$332Cut−$332
Bare Financial Services, Inc68$464−$238Cut−$115
Quaker Wealth Management, LLC67$457−$319Cut−$319
SG Americas Securities, LLC44.5K$304−$211Cut−$443
Larson Financial Group LLC33$225New
SJS Investment Consulting Inc.26$178−$124Cut−$483
HARBOR CAPITAL ADVISORS, INC.23.7K$162New
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO17.7K$121−$84Cut−$84
HHM Wealth Advisors, LLC12$82−$57Cut−$57
State of Alaska, Department of Revenue4.55K$31−$21Cut−$21
Hughes Financial Services, LLC3$20New
Dunhill Financial, LLC1$11$2Cut−$8
Measured Wealth Private Client Group, LLC1$5New
Avion Wealth69$0New
Ulland Investment Advisors, LLC50$0−$1Cut−$1
Covestor Ltd11$0$0Held
Capital Advisors, Ltd. LLC29$0New

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.