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Disclosery

AMPL AMPLITUDE INC

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Stock (common), issuer CIK 1866692

209 managers (219 13F filers) reported a position in AMPL shares at 2026-03-31, 83,358,493 shares in all. 42 filers opened a position and 37 filers sold out during the quarter.

Managers
209
13F filers
219
New
42
Added
64
Reduced
73
Sold out
37
Shares held by filers
83,358,493

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Schultz Ericadirector2026-10-05+892 A$0Form 4
Tzuo Tiendirector2026-10-05+818 A$0Form 4
Skates Spenserdirector, officer (CEO and President), 10% owner2026-10-02-70,087 S$14.5203Form 4
Skates Spenserdirector, officer (CEO and President), 10% owner2026-10-02+70,087 C$0Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…11,154,556$76.1M0.01%+9,190,50613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding11,053,120$75.4MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.10,162,138$69.3M<0.01%+379,72713F-HRTimelineGroup
FMR LLCin group FMR LLC3,311,284$22.6M<0.01%+2,865,10413F-HRTimelineGroup
SC US (TTGP), LTD.in group SC US (TTGP), LTD.2,798,951$19.1M0.21%013F-HRTimelineGroup
BAILLIE GIFFORD & COin group BAILLIE GIFFORD & CO2,634,150$18M0.02%-107,73013F-HRTimelineGroup
Nuveen, LLCin group TIAA2,554,774$17.4M<0.01%-90,84413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,429,307$16.6M<0.01%+123,90713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.2,411,300$16.4M0.03%-1,087,39413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,326,107$15.9M<0.01%+99,41313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,031,823$13.9M0.01%-220,90713F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC1,731,437$11.8M0.05%+1,673,36413F-HRTimeline
GAGNON SECURITIES LLCgroup of 2 filers holding1,694,823$11.6M+538,741Timeline
Optimus Prime Fund Management Co., Ltd.1,580,100$10.8M1.04%013F-HRTimeline
MONIMUS CAPITAL MANAGEMENT, LP1,264,286$8.62M2.39%+892,81913F-HRTimeline
ArrowMark Colorado Holdings LLC1,256,023$8.57M0.23%-228,27413F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC1,235,028$8.42M<0.01%+391,59413F-HRTimelineGroup
Meros Investment Management, LP1,163,826$7.94M3.44%+301,95213F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY920,506$6.28M<0.01%+234,94513F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP868,529$5.92M<0.01%+45,90313F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC800,030$5.45M0.01%+268,48813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co733,701$5M<0.01%-44,69313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC712,395$4.86M0.01%-255,56213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP691,661$4.72M<0.01%-349,61313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP617,713$4.21M<0.01%+485,75213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC598,270$4.08M<0.01%-621,89213F-HRTimelineGroup
Qube Research & Technologies Ltd597,441$4.07M0.01%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …576,301$3.93M<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/556,052$3.79M<0.01%-103,56113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.317,618$3.68M<0.01%-5,925,69413F-HRTimeline
WESTERLY CAPITAL MANAGEMENT, LLC500,000$3.41M1.05%013F-HRTimeline
Man Group plcin group Man Group plc478,338$3.26M0.01%+339,81613F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC462,790$3.16M<0.01%-4,38713F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd454,143$3.1M0.06%new13F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP424,566$2.9M<0.01%+332,83013F-HRTimelineGroup
Trigran Investments, Inc.380,526$2.6M0.62%new13F-HRTimeline
Quantinno Capital Management LP370,515$2.53M<0.01%+349,74413F-HRTimeline
Portolan Capital Management, LLCin group Portolan Capital Management, …359,593$2.45M0.13%-200,50313F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV329,425$2.25M<0.01%+188,71713F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO328,940$2.24M<0.01%+122,30013F-HR/ATimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC321,657$2.19M<0.01%-34,00213F-HRTimelineGroup
Toronado Partners, LLC318,823$2.17M4.1%-456,75013F-HRTimeline
Madison Asset Management, LLCin group Madison Asset Management, LLC314,060$2.14M0.03%+236,06013F-HRTimelineGroup
LIGHT STREET CAPITAL MANAGEMENT, LLC292,844$2M0.4%-1,207,15613F-HRTimeline
UBS Group AGgroup of 2 filers holding285,970$1.95M-417,919Timeline
G2 Investment Partners Management LLC270,000$1.84M0.45%-14,48113F-HRTimeline
Verition Fund Management LLC268,119$1.83M0.02%+188,43813F-HRTimeline
Trexquant Investment LP266,143$1.82M0.01%-178,53113F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp262,530$1.79M<0.01%-1,45313F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding242,613$1.65M-235,437Timeline
Circumference Group LLC238,000$1.62M3.64%013F-HRTimeline
Swiss National Bank181,200$1.24M<0.01%013F-HRTimeline
Creative Planningin group Creative Planning180,002$1.23M<0.01%+109,60313F-HRTimelineGroup
MARATHON CAPITAL MANAGEMENT171,560$1.17M0.26%+82,96013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC167,561$1.14M0.01%-2,95813F-HRTimelineGroup
IEQ CAPITAL, LLC164,576$1.12M0.01%+10,99013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC159,275$1.11M<0.01%+17,27913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\161,360$1.1M<0.01%-203,10713F-HRTimelineGroup
ALGERT GLOBAL LLC157,820$1.08M0.02%-162,36913F-HR/ATimeline
BOOTHBAY FUND MANAGEMENT, LLC154,389$1.05M0.02%+81,78713F-HRTimeline
S SQUARED TECHNOLOGY, LLC150,402$1.03M0.39%new13F-HR/ATimeline
Invesco Ltd.in group Invesco Ltd.135,201$922K<0.01%+21,51913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…131,640$898K<0.01%+55,42313F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/120,038$819K<0.01%-3,02413F-HRTimeline
Connor, Clark & Lunn Investment Managem…114,402$780K<0.01%-87,47013F-HRTimeline
RHUMBLINE ADVISERS113,453$774K<0.01%+2,98513F-HRTimeline
Utah Retirement Systems112,795$769K0.01%013F-HRTimeline
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…110,599$754K<0.01%+21713F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD102,900$702K<0.01%-12,10013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO100,035$682K<0.01%-3,27813F-HRTimelineGroup
WILSON ASSET MANAGEMENT (INTERNATIONAL)…99,053$676K0.19%013F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding90,555$618K-348,374Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…87,951$600K<0.01%-32413F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P60,000$597K0.56%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS85,998$587K<0.01%+13,84713F-HRTimelineGroup
Inspire Investing, LLCgroup of 2 filers holding74,731$510K+16,991Timeline
Legal & General Group Plcin group Legal & General Group Plc74,348$507K<0.01%-13,24213F-HRTimelineGroup
PDT Partners, LLC66,964$457K0.03%-52,26513F-HRTimeline
Palogic Value Management, L.P.65,000$443K0.19%new13F-HRTimeline
CWM, LLCin group CWM, LLC62,808$428K<0.01%+17,85713F-HRTimelineGroup
DRW Securities, LLC59,669$407K0.02%new13F-HRTimeline
Cresset Asset Management, LLC55,684$380K<0.01%-71213F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…53,441$364K<0.01%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…52,663$359K<0.01%+1,32213F-HRTimelineGroup
STRS OHIO51,800$353K<0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD49,684$339K<0.01%+27,41213F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC47,031$321K<0.01%-34,61813F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…46,089$314K<0.01%+3,30113F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…45,538$311K<0.01%+31,35613F-HRTimelineGroup
SG Americas Securities, LLC44,521$304K<0.01%-20,00413F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …43,306$294K<0.01%-20,45513F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC43,064$294K0.02%new13F-HRTimeline
CenterBook Partners LP40,908$279K0.01%new13F-HRTimeline
Blue Trust, Inc.40,204$274K<0.01%+5,48113F-HRTimeline
TWINBEECH CAPITAL LP39,300$268K0.03%new13F-HRTimeline
Parallel Advisors, LLC39,292$268K<0.01%+17813F-HR/ATimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN36,428$248K<0.01%-69,32513F-HR/ATimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC36,183$247K<0.01%-1,339,81913F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC36,018$246K<0.01%+1,10613F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.35,206$239K0.04%-41,23713F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson34,774$237K<0.01%013F-HR/ATimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP34,733$237K0.02%new13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC33,105$226K<0.01%+22,55013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…32,724$224K<0.01%-6,85313F-HRTimeline
EntryPoint Capital, LLC31,809$217K0.06%new13F-HRTimeline
Inscription Capital, LLC30,530$208K0.02%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…27,764$189K<0.01%-29913F-HRTimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC27,121$185K<0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …26,933$184K<0.01%-17,62313F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM25,243$172K<0.01%-41513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC24,183$165K<0.01%-206,68013F-HRTimelineGroup
Police & Firemen's Retirement System of…24,122$165K<0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC23,756$162K<0.01%-202,91813F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.23,717$162K0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND23,680$161K<0.01%-5,66413F-HRTimeline
TRUE Private Wealth Advisors23,557$161K0.02%013F-HRTimeline
Jasper Ridge Partners, L.P.23,005$157K<0.01%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC22,808$156K<0.01%013F-HRTimelineGroup
HighTower Advisors, LLC22,588$154K<0.01%-15,20313F-HRTimeline
State of Wyoming20,725$141K0.02%-8,70313F-HRTimeline
Numerai GP LLC19,986$136K0.01%+1,15813F-HRTimeline
Summit Trail Advisors, LLC19,932$136K<0.01%+8,55313F-HRTimeline
GROUP ONE TRADING LLC19,759$135K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC19,759$135K<0.01%-7,98613F-HRTimeline
KLP KAPITALFORVALTNING AS19,500$133K<0.01%013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…19,470$133K<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…17,737$121K<0.01%013F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP16,504$113K<0.01%new13F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…16,277$111K<0.01%013F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS16,195$110K<0.01%-43813F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC15,968$109K<0.01%-8,02013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.15,873$108K<0.01%+10,79213F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP15,641$107K0.01%new13F-HRTimeline
Silver Lake Group, L.L.C.in group Silver Lake Group, L.L.C.15,616$107K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd15,589$106K<0.01%-8,13813F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC14,965$102K<0.01%-26,40013F-HRTimelineGroup
ProShare Advisors LLC14,241$97.1K<0.01%-2,63913F-HRTimeline
CAPTRUST FINANCIAL ADVISORS13,687$93.3K<0.01%new13F-HRTimeline
Brooklyn Investment Group12,707$86.7K<0.01%new13F-HRTimeline
Versant Capital Management, Inc12,569$85.7K0.01%+10,07713F-HRTimeline
Frec Markets, Inc.in group Frec Markets, Inc.12,470$85K0.01%new13F-HRTimelineGroup
Polymer Capital Management (US) LLC11,969$81.6K0.01%new13F-HRTimeline
Krilogy Financial LLC11,355$77.1K<0.01%new13F-HRTimeline
EP Wealth Advisors, LLC11,003$75K<0.01%new13F-HRTimeline
Pallas Capital Advisors LLC10,929$74.5K<0.01%-55713F-HRTimeline
Merit Financial Group, LLC10,708$73K<0.01%+35013F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth10,589$72.2K<0.01%new13F-HRTimelineGroup
Centiva Capital, LP10,153$69.2K<0.01%new13F-HRTimeline
Scientech Research LLC10,025$68.4K0.06%new13F-HRTimeline
Morse Asset Management, Inc10,010$68.3K0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC8,321$56.7K<0.01%+5,04913F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…7,466$50.9K<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…7,250$49.4K<0.01%-2,19213F-HRTimelineGroup
SIMPLEX TRADING, LLC6,505$44.4K<0.01%new13F-HRTimeline
State of Alaska, Department of Revenue4,549$31K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC4,032$27.5K<0.01%+3,97113F-HR/ATimeline
Allworth Financial LP2,474$16.9K<0.01%+1,25513F-HRTimeline
Sunbelt Securities, Inc.2,124$14.5K<0.01%+2,09413F-HRTimeline
SIGNATUREFD, LLC2,115$14.4K<0.01%+2,02013F-HRTimeline
Kemnay Advisory Services Inc.2,023$13.8K<0.01%-8,21913F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…1,947$13.3K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC1,822$12.4K<0.01%+87113F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,775$12.1K<0.01%+73113F-HRTimelineGroup
Essential Partners LLC1,754$12K<0.01%-6113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,687$11.5K<0.01%-14913F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC1,481$10.1K<0.01%-18113F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,448$9.88K<0.01%-49113F-HR/ATimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,429$9.16K<0.01%-4213F-HRTimelineGroup
Root Financial Partners, LLC1,062$7.24K<0.01%new13F-HRTimeline
Arax Advisory Partners1,037$7.07K<0.01%+66913F-HRTimeline
MONTAG A & ASSOCIATES INC1,000$6.82K<0.01%013F-HRTimeline
SUMMIT SECURITIES GROUP LLC1,000$6.82K<0.01%-50013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.944$6.44K<0.01%+65613F-HR/ATimelineGroup
Bullock Wealth Management Group822$5.58K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA604$5K<0.01%-3,15413F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC700$4.77K<0.01%+11313F-HRTimeline
Farther Finance Advisors, LLC652$4.43K<0.01%-35713F-HRTimeline
Sterling Capital Management LLC638$4.35K<0.01%+4413F-HRTimeline
Advisory Services Network, LLC622$4.24K<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc553$3.77K<0.01%new13F-HRTimeline
Marquette Asset Management, LLC533$3.64K<0.01%+32813F-HRTimeline
Wealth Preservation Advisors, LLC497$3.39K<0.01%new13F-HRTimeline
IFP Advisors, Inc432$2.95K<0.01%-49113F-HRTimeline
NewEdge Advisors, LLC400$2.73K<0.01%013F-HR/ATimeline
MAI Capital Management389$2.65K<0.01%+33713F-HRTimeline
JPL Wealth Management, LLC370$2.52K<0.01%new13F-HR/ATimeline
SBI Securities Co., Ltd.359$2.45K<0.01%-23413F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC314$2.14K<0.01%013F-HRTimeline
TimesSquare Capital Management, LLC287$1.96K<0.01%-2,513,09613F-HRTimeline
Murphy & Mullick Capital Management Corp250$1.71K<0.01%013F-HRTimeline
True Wealth Design, LLC237$1.62K<0.01%-16413F-HRTimeline
Rachor Investment Advisory Services, LLC201$1.37K<0.01%+7013F-HRTimeline
HighMark Wealth Management LLC160$1.09K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB85$580<0.01%+6913F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…81$552<0.01%new13F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/70$477<0.01%013F-HRTimelineGroup
Basecamp Wealth Advisors LLC69$471<0.01%new13F-HRTimeline
Bare Financial Services, Inc68$464<0.01%+1813F-HRTimeline
Quaker Wealth Management, LLC67$457<0.01%013F-HRTimeline
Larson Financial Group LLC33$225<0.01%new13F-HRTimeline

Events

  • Schultz Erica acquired 892 AMPL shares on 2026-10-05, Form 4 filed 2026-10-07. 0001610717-26-000433

    Accepted , ingested

  • Tzuo Tien acquired 818 AMPL shares on 2026-10-05, Form 4 filed 2026-10-07. 0001610717-26-000432

    Accepted , ingested

  • Skates Spenser reported transactions in AMPL shares with no net change in a Form 4 filed 2026-10-06. 0001610717-26-000427

    Accepted , ingested