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Disclosery

AMPL AMPLITUDE INC

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Stock (common), issuer CIK 1866692

197 managers (204 13F filers) reported a position in AMPL shares at 2025-09-30, 78,149,209 shares in all. 40 filers opened a position and 24 filers sold out during the quarter.

Managers
197
13F filers
204
New
40
Added
85
Reduced
48
Sold out
24
Shares held by filers
78,149,209

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
VANGUARD GROUP INCin group VANGUARD GROUP INC9,891,218$106M<0.01%+252,64613F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.9,604,682$103M<0.01%+1,070,51913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.6,025,390$64.6M0.02%+1,864,90913F-HRTimeline
T. Rowe Price Investment Management, In…5,052,993$54.2M0.03%-3,873,88113F-HRTimeline
SC US (TTGP), LTD.in group SC US (TTGP), LTD.2,798,951$30M0.19%013F-HRTimelineGroup
BAILLIE GIFFORD & COin group BAILLIE GIFFORD & CO2,681,896$28.7M0.02%+703,32813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,241,211$24M<0.01%+53,53013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,234,087$24M<0.01%+75,70813F-HRTimelineGroup
Nuveen, LLCin group TIAA2,227,242$23.9M0.01%+241,11613F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,061,681$22.1M0.02%+155,51913F-HRTimelineGroup
TimesSquare Capital Management, LLC2,044,965$21.9M0.31%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…2,026,598$21.7M<0.01%+1,797,22813F-HRTimelineGroup
ArrowMark Colorado Holdings LLC1,585,582$17M0.32%+324,98513F-HRTimeline
Optimus Prime Fund Management Co., Ltd.1,580,100$16.9M1.5%013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,276,105$13.7M0.03%+81,00513F-HRTimelineGroup
Toronado Partners, LLC970,344$10.4M6.9%+681,85613F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding957,863$10.3M+299,085Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC921,711$9.88M<0.01%+355,61813F-HRTimelineGroup
FMR LLCin group FMR LLC864,806$9.27M<0.01%-2,423,67513F-HRTimelineGroup
GAGNON SECURITIES LLCgroup of 2 filers holding863,722$9.26MnewTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP851,507$9.13M<0.01%+31,70013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co770,857$8.26M<0.01%+49,57613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY767,732$8.23M<0.01%-39,25813F-HR/ATimelineGroup
Meros Investment Management, LP765,095$8.2M3.5%+209,69313F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC758,070$8.13M0.02%+229,02013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/646,945$6.94M<0.01%-52,87913F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC641,085$6.87M<0.01%+441,92113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC572,524$6.14M<0.01%+73,89913F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC568,516$6.09M0.02%+136,31313F-HRTimeline
Trexquant Investment LP523,003$5.61M0.06%+215,27913F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC494,201$5.3M0.01%+309,47613F-HRTimelineGroup
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT…in group SUMMIT PARTNERS PUBLIC ASSET …491,000$5.26M0.17%+266,00013F-HRTimelineGroup
G2 Investment Partners Management LLC478,086$5.13M1.05%+216,28613F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC467,643$5.01M0.01%+20,27813F-HRTimelineGroup
Cubist Systematic Strategies, LLC426,996$4.58M0.06%+183,07713F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC426,582$4.57M<0.01%new13F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP424,400$4.55M0.17%+132,66013F-HR/ATimeline
LORD, ABBETT & CO. LLC385,286$4.13M0.01%-58,84913F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC368,584$3.94M0.01%+291,09613F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding361,594$3.88M+99,438Timeline
WESTERLY CAPITAL MANAGEMENT, LLC350,000$3.75M1.19%-50,00013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC332,780$3.57M<0.01%+147,76013F-HRTimelineGroup
ALGERT GLOBAL LLC324,929$3.48M0.06%+142,48913F-HR/ATimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP294,840$3.16M<0.01%+85,22013F-HRTimelineGroup
MONIMUS CAPITAL MANAGEMENT, LP286,111$3.07M2.28%+36,17213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp263,253$2.82M<0.01%+5,53613F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC252,744$2.71M<0.01%+18,17013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS247,317$2.65M<0.01%-57,87513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO218,555$2.34M<0.01%-47,57913F-HR/ATimelineGroup
Circumference Group LLC218,000$2.34M2.74%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/212,252$2.28M<0.01%-32,98613F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding189,665$2.03MnewTimeline
Walleye Capital LLCgroup of 2 filers holding185,446$1.99M-72,245Timeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding176,957$1.9M-36,378Timeline
RENAISSANCE TECHNOLOGIES LLC175,115$1.88M<0.01%-72,18513F-HRTimeline
TD Asset Management Inc173,606$1.86M<0.01%-126,08813F-HRTimeline
Swiss National Bank172,400$1.85M<0.01%+16,60013F-HRTimeline
Engineers Gate Manager LP170,073$1.82M0.02%+50,94513F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC169,706$1.82M0.01%-513F-HR/ATimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC158,479$1.71M<0.01%-5,13613F-HRTimelineGroup
PDT Partners, LLC155,284$1.66M0.1%-122,14813F-HRTimeline
IEQ CAPITAL, LLC155,037$1.66M0.01%+80,83813F-HRTimeline
WILSON ASSET MANAGEMENT (INTERNATIONAL)…153,849$1.65M0.41%+30,00013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC145,128$1.56M<0.01%-30,95613F-HR/ATimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\136,498$1.46M<0.01%+6,73413F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP132,389$1.42M<0.01%-4,75713F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…129,033$1.38M<0.01%-107,82513F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC128,286$1.38M<0.01%-46,97713F-HRTimelineGroup
RHUMBLINE ADVISERS124,752$1.34M<0.01%-1,39613F-HRTimeline
Utah Retirement Systems112,795$1.21M0.01%013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC110,972$1.19M<0.01%new13F-HRTimelineGroup
Vishria Bird Financial Group, LLC108,430$1.16M0.23%-69,77913F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC103,687$1.11M0.03%+55,77013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.97,673$1.05M<0.01%+21,42513F-HRTimelineGroup
Baker Avenue Asset Management, LP92,576$992K0.02%+2,93613F-HRTimeline
Quantbot Technologies LP87,881$942K0.03%-25,96313F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc87,599$939K<0.01%+2,26513F-HRTimelineGroup
Verition Fund Management LLC85,199$913K0.01%-10,90013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…81,016$868K<0.01%-10,06013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…67,729$726K<0.01%+39,73213F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO63,156$677K<0.01%+32,47013F-HRTimelineGroup
Creative Planningin group Creative Planning61,869$663K<0.01%+18,04313F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN59,722$640K<0.01%+11,04513F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …58,135$623K<0.01%-57513F-HRTimelineGroup
Cresset Asset Management, LLC56,396$605K<0.01%+12813F-HR/ATimeline
Aquatic Capital Management LLC55,664$597K0.01%+24,28413F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…52,702$565K<0.01%013F-HRTimelineGroup
STRS OHIO51,800$555K<0.01%013F-HRTimeline
Bayesian Capital Management, LP51,500$552K0.11%+33,22013F-HRTimeline
SG Americas Securities, LLC48,717$522K<0.01%+25,23613F-HRTimeline
PANAGORA ASSET MANAGEMENT INC46,627$500K<0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC44,285$475K<0.01%+33,64513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …44,085$473K<0.01%-61313F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd42,907$460K0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…41,607$446K<0.01%+6,25213F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…41,517$445K<0.01%-6,22213F-HRTimelineGroup
State of Wyoming39,797$427K0.05%new13F-HRTimeline
Parallel Advisors, LLC39,097$419K0.01%013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC38,162$409K<0.01%-12,87713F-HRTimeline
Woodline Partners LP37,925$407K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC37,779$405K<0.01%+21,48813F-HRTimelineGroup
Cedar Wealth Management, LLC37,415$401K0.12%013F-HRTimeline
ARS Investment Partners, LLC36,819$395K0.03%+6,16013F-HRTimeline
HighTower Advisors, LLC36,184$388K<0.01%+4113F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson34,774$373K<0.01%013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD34,302$368K<0.01%+2,00013F-HRTimeline
Blue Trust, Inc.34,092$365K<0.01%+1,26513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC33,341$357K<0.01%-15,14813F-HRTimeline
CenterBook Partners LP32,694$350K0.02%-275,84313F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd32,651$350K0.02%-4,12713F-HRTimelineGroup
TWINBEECH CAPITAL LP29,549$317K0.01%new13F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD28,700$308K<0.01%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…30,260$305K<0.01%+10,51913F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…28,254$303K0.02%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…27,311$293K<0.01%+7,19113F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM26,311$282K<0.01%+2,43613F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP26,234$281K0.03%-5,67813F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC25,417$272K<0.01%new13F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS25,338$272K<0.01%+51713F-HRTimeline
KLP KAPITALFORVALTNING AS24,800$266K<0.01%+8,60013F-HRTimeline
Penn Capital Management Company, LLC24,573$263K0.02%new13F-HRTimeline
Police & Firemen's Retirement System of…24,122$259K<0.01%+4,03613F-HRTimeline
OMERS ADMINISTRATION Corp23,900$256K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND23,680$254K<0.01%013F-HRTimeline
TRUE Private Wealth Advisors23,557$253K0.03%013F-HRTimeline
Jasper Ridge Partners, L.P.23,005$247K0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…21,657$232K<0.01%new13F-HRTimelineGroup
DRW Securities, LLC21,336$229K0.01%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC20,675$222K<0.01%new13F-HRTimelineGroup
Entropy Technologies, LP20,647$221K0.02%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…19,470$209K<0.01%013F-HRTimeline
Man Group plcin group Man Group plc17,794$191K<0.01%-20,92513F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…17,737$190K<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…16,277$174K<0.01%+4,37513F-HRTimelineGroup
PharVision Advisers, LLC16,257$174K0.1%new13F-HRTimeline
Corton Capital Inc.15,879$170K0.42%new13F-HRTimeline
Quantinno Capital Management LP15,686$168K<0.01%-1,31213F-HRTimeline
Silver Lake Group, L.L.C.in group Silver Lake Group, L.L.C.15,616$167K<0.01%013F-HRTimelineGroup
Jain Global LLC15,535$167K<0.01%new13F-HRTimeline
ProShare Advisors LLC15,280$164K<0.01%-2,58513F-HRTimeline
Arax Advisory Partners14,749$158K<0.01%+14,39613F-HRTimeline
Summit Trail Advisors, LLC11,882$127K<0.01%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV11,659$125K<0.01%new13F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…11,550$124K<0.01%new13F-HRTimelineGroup
CATALYST PRIVATE WEALTH, LLC10,921$117K0.05%013F-HRTimeline
Schonfeld Strategic Advisors LLC10,582$113K<0.01%new13F-HRTimeline
Legato Capital Management LLC10,478$112K0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC9,238$99K<0.01%-66,66013F-HRTimelineGroup
Point72 Asia (Singapore) Pte. Ltd.7,819$83.8K0.01%+3,94713F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…7,466$80K<0.01%-1,42913F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.5,182$59.3K<0.01%+5013F-HRTimelineGroup
State of Alaska, Department of Revenue4,549$48K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA3,692$40K<0.01%+2,85513F-HRTimelineGroup
Quarry LP2,949$31.6K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,709$29K<0.01%-7,76813F-HRTimelineGroup
AMALGAMATED BANK2,705$29K<0.01%013F-HRTimeline
Versant Capital Management, Inc2,313$24.8K<0.01%-65313F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,836$19.7K<0.01%013F-HRTimelineGroup
Essential Partners LLC1,305$14K<0.01%+1,07513F-HRTimeline
Bullock Wealth Management Group1,376$13.8K0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,018$10.9K<0.01%013F-HRTimeline
MONTAG A & ASSOCIATES INC1,000$10.7K<0.01%013F-HRTimeline
GAMMA Investing LLC854$9.15K<0.01%+2913F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …828$9K<0.01%+15013F-HRTimelineGroup
AlphaQuest LLC826$8.86K<0.01%-10,64613F-HRTimeline
Allworth Financial LP806$8.64K<0.01%+74713F-HRTimeline
Cranbrook Wealth Management, LLC786$8.43K<0.01%new13F-HRTimeline
NewEdge Advisors, LLC756$8.1K<0.01%+50613F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.696$7.46K<0.01%new13F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…638$6.84K<0.01%+50213F-HRTimelineGroup
Advisory Services Network, LLC537$5.76K<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…520$5.57K<0.01%013F-HRTimeline
Fortitude Family Office, LLC503$5.39K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.386$4.14K<0.01%+1313F-HRTimeline
Point72 Europe (London) LLP261$2.8K<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK252$2.7K<0.01%013F-HRTimelineGroup
Clearstead Advisors, LLC232$2.49K<0.01%+22813F-HRTimeline
Murphy & Mullick Capital Management Corp250$2.44K<0.01%013F-HRTimeline
Sterling Capital Management LLC217$2.33K<0.01%+613F-HRTimeline
Marquette Asset Management, LLC170$1.82K<0.01%new13F-HRTimeline
Stephens Consulting, LLC155$1.66K<0.01%new13F-HRTimeline
IFP Advisors, Inc146$1.56K<0.01%+8713F-HR/ATimeline
True Wealth Design, LLC124$1.33K<0.01%+4913F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP100$1.14K<0.01%013F-HRTimelineGroup
SIGNATUREFD, LLC95$1.02K<0.01%013F-HRTimeline
Ulland Investment Advisors, LLC50$1K<0.01%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/73$783<0.01%+313F-HRTimelineGroup
Quaker Wealth Management, LLC67$719<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC61$654<0.01%new13F-HRTimeline
OPTIMUM INVESTMENT ADVISORS50$536<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC40$429<0.01%-16013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.30$322<0.01%-30013F-HRTimelineGroup
Sunbelt Securities, Inc.20$214<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB16$172<0.01%-1113F-HRTimeline
Caitong International Asset Management …16$172<0.01%-26413F-HRTimeline
HHM Wealth Advisors, LLC12$129<0.01%013F-HRTimeline
Covestor Ltd19$00%-2213F-HRTimelineValue filed as zero, left out of ratios.

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