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Disclosery

AMBA AMBARELLA INC

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SHS (common), issuer CIK 1280263

318 managers (324 13F filers) reported a position in AMBA shares at 2025-12-31, 37,046,423 shares in all. 45 filers opened a position and 54 filers sold out during the quarter.

Managers
318
13F filers
324
New
45
Added
101
Reduced
118
Sold out
54
Shares held by filers
37,046,423

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

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
VANGUARD GROUP INCgroup of 2 filers holding5,484,812$389M+311,639Timeline
BlackRock, Inc.in group BlackRock, Inc.3,827,849$271M<0.01%-94,39313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,702,493$121M<0.01%+21,63813F-HRTimelineGroup
Jericho Capital Asset Management L.P.1,587,081$112M1.28%+373,73413F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …1,061,145$75.2M0.06%+207,93013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,020,527$72.3M<0.01%+35,51013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY911,477$64.6M<0.01%-47,02913F-HR/ATimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/864,610$61.2M0.01%+828,77313F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.848,092$60.1M0.2%-259,58113F-HR/ATimeline
Slate Path Capital LP814,400$57.7M0.78%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC793,745$56.2M0.11%+206,77313F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.772,033$54.7M0.09%+650,42213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding716,331$50.7M-184,143Timeline
BARCLAYS PLCin group BARCLAYS PLC695,086$49.2M0.02%-80,02713F-HRTimelineGroup
OBERWEIS ASSET MANAGEMENT INC/617,860$43.8M1.6%+6,50013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc614,017$43.5M0.01%+95,21813F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…557,159$39.5M0.1%-9,67113F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC535,674$37.9M0.03%+80,68613F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP498,659$35.3M0.01%-12,93913F-HRTimelineGroup
Stephens Investment Management Group LLCgroup of 2 filers holding480,808$34.1M-494Timeline
Nuveen, LLCin group TIAA476,898$33.8M0.01%-81,29813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/446,915$31.7M<0.01%-160,33413F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding444,587$31.5M+51,761Timeline
Driehaus Capital Management LLC366,251$25.9M0.18%-14,88013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co365,219$25.9M<0.01%+7,06213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP364,014$25.8M<0.01%-19,16113F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management359,899$25.5M0.05%+29,09713F-HRTimelineGroup
PINNACLE ASSOCIATES LTD359,222$25.4M0.33%-17,57913F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC353,101$25M0.21%+81,66813F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP318,488$22.6M0.02%+97,61913F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC318,429$22.6M0.09%-78,77313F-HRTimeline
Handelsbanken Fonder AB312,326$22.1M0.07%+142,55113F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …309,215$21.9M0.03%new13F-HRTimelineGroup
Shannon River Fund Management LLC301,093$21.3M3.35%new13F-HRTimeline
FMR LLCin group FMR LLC281,370$19.9M<0.01%+39,50513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding271,432$19.2M+63,719Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO267,872$19M<0.01%+25,24213F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC235,847$16.7M0.01%+5,46213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS231,218$16.4M0.01%+4,01313F-HRTimelineGroup
ALGERT GLOBAL LLC207,920$14.7M0.23%-29,97013F-HR/ATimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC207,625$14.7M<0.01%-299,92713F-HR/ATimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC189,038$13.2M<0.01%+72,35513F-HRTimelineGroup
Qube Research & Technologies Ltd182,275$12.9M0.02%-109,15013F-HRTimeline
SEGALL BRYANT & HAMILL, LLC178,097$12.6M0.17%-161,10413F-HRTimeline
Robeco Institutional Asset Management B…group of 2 filers holding173,948$12.3M-84,950Timeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC169,852$12M0.01%+51,03013F-HRTimelineGroup
SORA INVESTORS LLC162,733$11.5M0.99%+10,36613F-HRTimeline
Potrero Capital Research LLC148,537$10.5M3.54%+43,16413F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP146,612$10.4M0.01%+24,39813F-HRTimelineGroup
Trexquant Investment LP145,731$10.3M0.09%-98,59413F-HRTimeline
S SQUARED TECHNOLOGY, LLC128,551$9.11M3.53%-25,00013F-HRTimeline
Engineers Gate Manager LP125,059$8.86M0.11%-8,14113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC121,384$8.59M0.01%-28,57613F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.119,279$8.45M<0.01%+71,51213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp116,342$8.24M<0.01%+6,69313F-HRTimelineGroup
Tributary Capital Management, LLC107,508$7.62M0.75%-104,38713F-HRTimeline
Hillsdale Investment Management Inc.104,900$7.43M0.21%+4,82013F-HRTimeline
GLENVIEW CAPITAL MANAGEMENT, LLC100,000$7.08M0.15%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\98,189$6.96M<0.01%+17,78513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN92,024$6.52M<0.01%+28,86713F-HRTimelineGroup
SWS Partners89,191$6.32M1.53%+12,77413F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding81,237$6.11M-18,102Timeline
WESTERLY CAPITAL MANAGEMENT, LLC85,000$6.02M1.81%+40,00013F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC83,843$5.94M0.91%-1,50913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.81,828$5.8M<0.01%-274,36613F-HRTimelineGroup
Swiss National Bank80,033$5.67M<0.01%+1,90013F-HRTimeline
LORD, ABBETT & CO. LLC79,726$5.65M0.02%-2513F-HRTimeline
READYSTATE ASSET MANAGEMENT LP76,879$5.45M0.24%+3,93413F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…70,882$5.02M0.01%-2,99813F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO64,428$4.56M<0.01%+22,02313F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC59,958$4.25M<0.01%-24,76713F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …57,338$4.06M<0.01%-259,04313F-HRTimelineGroup
RHUMBLINE ADVISERS55,853$3.96M<0.01%-3,71013F-HRTimeline
SG Americas Securities, LLC55,225$3.91M0.01%new13F-HRTimeline
ArrowMark Colorado Holdings LLC55,000$3.9M0.09%-10,00013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources54,803$3.88M<0.01%+9,09713F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …54,242$3.84M0.21%new13F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.47,246$3.35M0.03%-53,30413F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS47,158$3.34M0.01%new13F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …47,128$3.34M0.01%-11,30013F-HRTimelineGroup
ExodusPoint Capital Management, LP46,446$3.29M0.04%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC46,224$3.27M<0.01%+4,24013F-HRTimelineGroup
IMC-Chicago, LLC44,357$3.14M0.06%+17,12913F-HRTimeline
Y-Intercept (Hong Kong) Ltd42,804$3.03M0.07%+39,16613F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC39,967$2.83M<0.01%-21,90413F-HRTimelineGroup
HRT FINANCIAL LP39,109$2.77M0.01%-39,15313F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…38,645$2.74M<0.01%+2,29913F-HRTimeline
Freemont Management S.A.38,589$2.73M0.54%new13F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP35,582$2.52M<0.01%-72113F-HRTimelineGroup
G2 Investment Partners Management LLC33,078$2.34M0.56%-32,92213F-HRTimeline
FirstWave Capital Management LLC33,075$2.34M1.39%13F-HRTimeline
PEAK6 LLCin group PEAK6 LLC32,844$2.33M0.06%new13F-HR/ATimelineGroup
Oak Harvest Investment Services31,959$2.26M0.25%+26,95913F-HRTimeline
CITIGROUP INCin group CITIGROUP INC30,733$2.18M<0.01%+7,79913F-HRTimelineGroup
MYDA Advisors LLC28,000$1.98M0.56%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA27,842$1.97M<0.01%-172,85413F-HRTimelineGroup
Granite Investment Partners, LLC27,769$1.97M0.12%-11,71613F-HRTimeline
Leonteq Securities AG26,870$1.9M0.1%+17,85013F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…25,958$1.84M0.01%-6,26013F-HRTimelineGroup
Creative Planningin group Creative Planning25,676$1.82M<0.01%-87813F-HRTimelineGroup
Man Group plcin group Man Group plc24,845$1.76M<0.01%-34,13813F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP24,800$1.76M0.15%+14,68513F-HRTimeline
Quantbot Technologies LP23,707$1.68M0.06%+18,19213F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…22,681$1.61M0.01%-1,01713F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC18,738$1.59M0.01%+7,20713F-HRTimeline
KBC Group NVin group KBC Group NV21,795$1.54M<0.01%013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC21,083$1.49M0.01%+2,21213F-HRTimeline
Collar Capital Management, LLC20,188$1.43M0.96%-51313F-HRTimeline
PRIMECAP MANAGEMENT CO/CA/19,500$1.38M<0.01%-1,40013F-HRTimeline
MACKENZIE FINANCIAL CORP19,483$1.36M<0.01%+4,31413F-HRTimeline
SBI Okasan Asset Management Co.Ltd.19,200$1.35M0.07%13F-HRTimeline
MCDONALD PARTNERS LLC18,521$1.31M0.41%-57513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson17,898$1.27M<0.01%013F-HRTimelineGroup
Main Management ETF Advisors, LLCin group Main Management ETF Advisors,…17,226$1.22M0.04%+17613F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC17,106$1.21M<0.01%-1,15413F-HRTimelineGroup
Graham Capital Management, L.P.17,105$1.21M0.04%+62913F-HRTimeline
Linden Thomas Advisory Services, LLC16,975$1.2M0.12%-23613F-HRTimeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…16,830$1.19M0.56%-4,10013F-HRTimelineGroup
Headlands Technologies LLC16,337$1.16M0.1%-5013F-HRTimeline
Legato Capital Management LLC15,720$1.11M0.1%+1,44013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD15,700$1.11M<0.01%+12,10013F-HRTimeline
Quantinno Capital Management LP14,816$1.05M<0.01%+6,26613F-HRTimeline
Red Spruce Capital, LLC14,644$1.04M0.41%-38413F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND14,560$1.03M<0.01%+25713F-HRTimeline
Connective Capital Management, LLC14,516$1.03M0.6%+58213F-HRTimeline
STRS OHIO14,400$1.02M<0.01%+80013F-HRTimeline
LPL Financial LLC14,241$1.01M<0.01%-2,21313F-HRTimeline
Caption Management, LLC14,000$992K0.04%-7,17113F-HRTimeline
SONA ASSET MANAGEMENT (US) LLCin group SONA ASSET MANAGEMENT (US) LLC14,000$992K0.03%new13F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC13,953$988K0.03%-9,09313F-HRTimeline
WHITE PINE CAPITAL LLC13,952$988K0.27%-29713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC13,835$980K<0.01%+38013F-HRTimelineGroup
Summit Global Investmentsin group Summit Global Investments12,906$914K0.05%-92513F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT12,624$894K0.01%new13F-HRTimeline
ProShare Advisors LLC11,485$814K<0.01%-28213F-HRTimeline
IEQ CAPITAL, LLC11,338$803K<0.01%-3,70013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM11,178$792K<0.01%-72113F-HRTimeline
Marex Group Ltdin group Marex Group Ltd11,118$788K0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…10,792$765K0.01%-48013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…10,760$762K<0.01%013F-HRTimeline
Janney Montgomery Scott LLC10,596$751K<0.01%+7,43413F-HRTimeline
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC10,574$749K0.2%+5,56713F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,574$749K<0.01%013F-HRTimelineGroup
Odyssean, LLC10,347$733K0.53%13F-HRTimeline
OFI INVEST ASSET MANAGEMENT11,974$722K0.01%013F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP10,029$710K<0.01%-7,36213F-HRTimelineGroup
Keel Point, LLC10,009$709K0.04%-1813F-HRTimeline
K.J. Harrison & Partners Inc10,000$708K0.09%new13F-HRTimeline
Themes Management Co LLC9,878$700K0.56%13F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding9,868$699K-11,300Timeline
FOX RUN MANAGEMENT, L.L.C.9,767$692K0.11%-9,46313F-HRTimeline
Banco Santander, S.A.in group Banco Santander, S.A.9,446$669K0.01%013F-HRTimelineGroup
Lombard Odier Asset Management (USA) Co…9,354$663K0.27%+4,40413F-HRTimeline
VISTA INVESTMENT PARTNERS LLC9,318$660K0.17%+60613F-HRTimeline
STONERIDGE INVESTMENT PARTNERS LLC9,301$659K0.46%+6,73213F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC9,164$649K<0.01%+5,59913F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS9,145$648K<0.01%+1,36813F-HRTimeline
Krane Funds Advisors LLC8,848$627K0.02%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…7,597$625K<0.01%-61513F-HRTimeline
KLP KAPITALFORVALTNING AS8,800$623K<0.01%013F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…8,638$612K0.06%-4,35513F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…8,620$611K<0.01%+89813F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD8,303$588K<0.01%-3,12013F-HRTimeline
GAMCO INVESTORS, INC. ET ALin group GAMCO Investors (Gabelli)8,147$577K0.01%-7,05213F-HRTimelineGroup
AZZAD ASSET MANAGEMENT INC /ADV8,058$571K0.06%-3,82513F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC7,871$558K<0.01%-3,50413F-HRTimelineGroup
SIMPLEX TRADING, LLC7,824$554K0.02%+2,53413F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…7,599$538K<0.01%+2,15513F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,521$533K<0.01%-56313F-HRTimelineGroup
OAK ASSOCIATES LTD /OH/7,413$525K0.03%-39013F-HRTimeline
Mariner, LLCin group Mariner, LLC7,377$522K<0.01%-1,19713F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC7,288$516K<0.01%-7513F-HRTimelineGroup
CenterBook Partners LP6,954$493K0.02%new13F-HRTimeline
CWM, LLCin group CWM, LLC6,650$471K<0.01%-65013F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.6,409$454K0.02%-4,15513F-HRTimeline
OXFORD ASSET MANAGEMENT LLP6,251$443K0.16%+4413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
GREENWOOD CAPITAL ASSOCIATES LLC6,116$433K0.05%new13F-HRTimeline
Cresset Asset Management, LLC5,902$418K<0.01%-14513F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…5,804$411K<0.01%+58113F-HRTimelineGroup
Edgestream Partners, L.P.5,618$398K0.01%-40,93913F-HRTimeline
AlphaGrep UK Ltd5,416$384K0.13%13F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC5,265$373K<0.01%+35313F-HRTimelineGroup
FIRST COMMUNITY TRUST NA5,000$354K0.26%013F-HRTimeline
Jackson Creek Investment Advisors LLC4,952$351K0.1%new13F-HRTimeline
CENTAURUS FINANCIAL, INC.4,835$343K0.02%-87513F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.4,900$342K<0.01%-90013F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV4,679$331K<0.01%-1,00213F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC4,679$331K<0.01%+6013F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP4,649$329K0.02%-22,00113F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC4,617$327K<0.01%new13F-HRTimelineGroup
Sanctuary Advisors, LLC4,607$326K<0.01%new13F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…4,413$313K<0.01%+71813F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP4,264$302K0.03%new13F-HRTimeline
Pacer Advisors, Inc.4,231$300K<0.01%+1,90913F-HR/ATimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,216$299K<0.01%-29613F-HRTimelineGroup
BAILARD, INC.4,200$298K0.01%-813F-HRTimeline
Verition Fund Management LLC4,200$298K<0.01%-4,90213F-HRTimeline
Amundiin group Amundi4,195$297K<0.01%new13F-HRTimelineGroup
SteelPeak Wealth, LLC4,194$297K0.01%-5,93513F-HRTimeline
CIM INVESTMENT MANAGEMENT INC4,188$297K0.08%013F-HRTimeline