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Disclosery

AMBA AMBARELLA INC

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SHS (common), issuer CIK 1280263

317 managers (329 13F filers) reported a position in AMBA shares at 2025-09-30, 35,561,247 shares in all. 61 filers opened a position and 40 filers sold out during the quarter.

Managers
317
13F filers
329
New
61
Added
113
Reduced
105
Sold out
40
Shares held by filers
35,561,247

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, 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 INCgroup of 2 filers holding5,173,173$427M+4,652Timeline
BlackRock, Inc.in group BlackRock, Inc.3,922,242$324M0.01%+4,46313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,680,855$139M<0.01%-174,31513F-HRTimelineGroup
Jericho Capital Asset Management L.P.1,213,347$100M1.04%+114,86513F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.1,107,673$91.4M0.31%+90,38613F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC985,017$81.3M0.01%+8,73613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY958,506$79.1M<0.01%+166,37813F-HR/ATimelineGroup
UBS Group AGgroup of 2 filers holding900,474$74.3M+496,399Timeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …853,215$70.4M0.06%-518,29613F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC775,113$64M0.02%+425,54613F-HR/ATimelineGroup
OBERWEIS ASSET MANAGEMENT INC/611,360$50.4M1.93%+38,00013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/607,249$50.1M<0.01%+39,36313F-HR/ATimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC586,972$48.4M0.1%+29,80013F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…566,830$46.8M0.15%+85,66713F-HRTimeline
Nuveen, LLCin group TIAA558,196$46.1M0.01%+53,45613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc518,799$42.8M0.01%-115,67813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP511,598$42.2M0.01%-4,56113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC507,552$41.9M0.01%+147,33713F-HRTimelineGroup
Stephens Investment Management Group LLCgroup of 2 filers holding481,302$39.7M-16,294Timeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC454,988$37.5M0.03%-490,67213F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC397,202$32.8M0.13%-50,62413F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding392,826$32.4M+104,065Timeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP383,175$31.6M<0.01%+50513F-HRTimelineGroup
Driehaus Capital Management LLC381,131$31.5M0.23%new13F-HRTimeline
PINNACLE ASSOCIATES LTD376,801$31.1M0.41%-11,63613F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co358,157$29.6M<0.01%+12,28513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.356,194$29.4M<0.01%+10,74713F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC339,201$28M0.37%-5,63313F-HRTimeline
AXA Investment Managers S.A.332,581$27.4M0.07%13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management330,802$27.3M0.06%-128,76013F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …316,381$26.1M0.02%+203,72213F-HRTimelineGroup
Qube Research & Technologies Ltd291,425$24M0.03%+51,81913F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC271,433$22.4M0.21%-99,30813F-HRTimeline
Robeco Institutional Asset Management B…group of 2 filers holding258,898$21.4M+1,587Timeline
Trexquant Investment LP244,325$20.2M0.21%+83,96613F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO242,630$20M<0.01%+120,52313F-HR/ATimelineGroup
RENAISSANCE TECHNOLOGIES LLC242,600$20M0.03%-108,24913F-HRTimeline
FMR LLCin group FMR LLC241,865$20M<0.01%+21,12013F-HRTimelineGroup
ALGERT GLOBAL LLC237,890$19.6M0.33%+16,52713F-HR/ATimeline
SG Capital Management LLC232,713$19.2M1.92%+43,49213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC230,385$19M0.01%+5,38813F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS227,205$18.7M0.01%+206,12113F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP220,869$18.2M0.02%+132,54513F-HRTimelineGroup
Tributary Capital Management, LLC211,895$17.5M1.58%-12,96113F-HR/ATimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding207,713$17.1M-41,212Timeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA200,696$16.6M<0.01%+128,93513F-HRTimelineGroup
Handelsbanken Fonder AB169,775$14M0.04%+143,13613F-HRTimeline
S SQUARED TECHNOLOGY, LLC153,551$12.7M4.82%+35,00013F-HRTimeline
SORA INVESTORS LLC152,367$12.6M1.16%+76,45913F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC149,960$12.4M0.02%-75,82713F-HRTimelineGroup
Engineers Gate Manager LP133,200$11M0.13%+31,66413F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP122,214$10.1M0.01%-52,70513F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.121,611$10M0.02%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC118,822$9.81M0.01%+54,77813F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC116,683$9.63M<0.01%+91,83613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp109,649$9.05M<0.01%-24,89813F-HRTimelineGroup
Potrero Capital Research LLC105,373$8.7M2.64%-44,62713F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.100,550$8.3M0.08%+3,84713F-HRTimeline
Hillsdale Investment Management Inc.100,080$8.26M0.25%+3,19013F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding99,339$8.2M+3,179Timeline
ESSEX INVESTMENT MANAGEMENT CO LLC85,352$7.04M1.08%+87313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC84,725$6.99M<0.01%-9,23413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\80,404$6.63M<0.01%-98,73913F-HRTimelineGroup
LORD, ABBETT & CO. LLC79,751$6.58M0.02%+10,66213F-HRTimeline
HRT FINANCIAL LP78,262$6.46M0.02%new13F-HRTimeline
Swiss National Bank78,133$6.45M<0.01%+1,10013F-HRTimeline
SWS Partners76,417$6.31M1.54%+1,26113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…73,880$6.1M0.01%-28,03913F-HRTimelineGroup
READYSTATE ASSET MANAGEMENT LP72,945$6.02M0.29%new13F-HRTimeline
Atom Investors LP68,487$5.65M0.43%+44,95413F-HRTimeline
G2 Investment Partners Management LLC66,000$5.45M1.12%new13F-HRTimeline
ArrowMark Colorado Holdings LLC65,000$5.36M0.1%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN63,157$5.21M<0.01%+8,50713F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC63,053$5.2M0.07%new13F-HR/ATimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC61,871$5.11M<0.01%-30313F-HRTimelineGroup
RHUMBLINE ADVISERS59,563$4.92M<0.01%-2,55013F-HRTimeline
Man Group plcin group Man Group plc58,983$4.87M0.01%-40,77213F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …58,428$4.82M0.01%+43,46113F-HRTimelineGroup
AIGH Capital Management LLC50,000$4.13M1.44%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.47,767$3.94M<0.01%-70,69713F-HRTimeline
Edgestream Partners, L.P.46,557$3.84M0.11%+30,00913F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources45,706$3.77M<0.01%+3,20013F-HRTimelineGroup
WESTERLY CAPITAL MANAGEMENT, LLC45,000$3.71M1.18%-98,00013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO42,405$3.5M<0.01%-3,36413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC41,984$3.46M<0.01%+30,81313F-HRTimelineGroup
Granite Investment Partners, LLC39,485$3.26M0.19%-5,02913F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…36,346$3M<0.01%+213F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP36,303$3M<0.01%+19,04113F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/35,837$2.96M<0.01%+2,71813F-HRTimeline
WOLVERINE TRADING, LLC32,985$2.73M0.06%-10,30613F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…32,218$2.66M0.01%+2,38813F-HRTimelineGroup
FIRST NATIONAL BANK OF OMAHAgroup of 2 filers holding28,095$2.32M-7,846Timeline
IMC-Chicago, LLC27,228$2.25M0.04%new13F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP26,650$2.2M0.27%+12,70813F-HRTimeline
Creative Planningin group Creative Planning26,554$2.19M<0.01%+4,98513F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC26,460$2.18M<0.01%new13F-HRTimelineGroup
Harber Asset Management LLC24,594$2.03M0.73%-17,18813F-HRTimeline
Schonfeld Strategic Advisors LLC24,347$2.01M0.01%+2,87413F-HRTimeline
Point72 Hong Kong Ltd24,212$2M0.09%new13F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC24,038$1.98M0.01%-154,02213F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…23,698$1.96M0.01%-61113F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC23,046$1.9M0.05%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC22,934$1.89M<0.01%-25,72213F-HRTimelineGroup
KBC Group NVin group KBC Group NV21,795$1.8M<0.01%013F-HRTimelineGroup
Caption Management, LLC21,171$1.75M0.1%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding21,168$1.75M-9,588Timeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…20,930$1.73M0.95%-2,76013F-HR/ATimelineGroup
PRIMECAP MANAGEMENT CO/CA/20,900$1.72M<0.01%-1,00013F-HRTimeline
Collar Capital Management, LLC20,701$1.71M1.2%-10013F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.19,230$1.59M0.25%+10,99413F-HRTimeline
MCDONALD PARTNERS LLC19,096$1.58M0.47%-15013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC18,871$1.56M0.01%-3,67213F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC18,260$1.51M0.01%-2913F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson17,898$1.48M<0.01%013F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC17,596$1.45M<0.01%-11,70113F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP17,391$1.44M<0.01%-1,10613F-HRTimelineGroup
Linden Thomas Advisory Services, LLC17,211$1.42M0.14%+4313F-HRTimeline
Main Management ETF Advisors, LLCin group Main Management ETF Advisors,…17,050$1.41M0.05%new13F-HRTimelineGroup
Graham Capital Management, L.P.16,476$1.36M0.05%-35,53413F-HRTimeline
LPL Financial LLC16,454$1.36M<0.01%-1,09713F-HRTimeline
Headlands Technologies LLC16,387$1.35M0.11%new13F-HRTimeline
Aquatic Capital Management LLC15,674$1.29M0.02%new13F-HRTimeline
GAMCO INVESTORS, INC. ET ALin group GAMCO Investors (Gabelli)15,199$1.25M0.01%-97713F-HRTimelineGroup
MACKENZIE FINANCIAL CORP15,169$1.25M<0.01%-7,00113F-HRTimeline
IEQ CAPITAL, LLC15,038$1.24M<0.01%+2,89813F-HRTimeline
Red Spruce Capital, LLC15,028$1.24M0.51%-2113F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND14,303$1.18M<0.01%013F-HRTimeline
Legato Capital Management LLC14,280$1.18M0.13%013F-HRTimeline
WHITE PINE CAPITAL LLC14,249$1.18M0.34%-49613F-HRTimeline
Connective Capital Management, LLC13,934$1.15M1.06%new13F-HRTimeline
Summit Global Investmentsin group Summit Global Investments13,831$1.14M0.07%+1,16513F-HRTimelineGroup
Sigma Planning Corp13,819$1.14M0.03%+8,16613F-HRTimeline
Campbell & CO Investment Adviser LLC13,777$1.14M0.09%+10,25913F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers13,721$1.13M<0.01%+20413F-HRTimelineGroup
STRS OHIO13,600$1.12M<0.01%-1,50013F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC13,455$1.11M<0.01%+3,48113F-HRTimelineGroup
Neo Ivy Capital Management13,244$1.09M0.27%+13,06713F-HRTimeline
Perbak Capital Partners LLP13,133$1.08M0.19%+48413F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…12,993$1.07M0.09%+2013F-HRTimelineGroup
Versor Investments LP12,030$993K0.18%-77013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM11,899$982K0.01%+15713F-HRTimeline
AZZAD ASSET MANAGEMENT INC /ADV11,883$981K0.1%-1,66613F-HRTimeline
ProShare Advisors LLC11,767$971K<0.01%-29513F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC11,531$952K<0.01%+4,15213F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD11,423$943K<0.01%-1413F-HRTimeline
Bayesian Capital Management, LP11,400$941K0.19%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC11,375$939K<0.01%+3,32313F-HRTimelineGroup
Police & Firemen's Retirement System of…11,272$930K0.01%+2,04213F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…10,760$888K<0.01%-2513F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,574$873K<0.01%-9,58913F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.10,564$872K0.03%-45713F-HRTimeline
OFI INVEST ASSET MANAGEMENT11,974$841K0.02%013F-HRTimeline
SteelPeak Wealth, LLC10,129$836K0.03%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP10,115$835K0.07%-10,98513F-HRTimeline
Keel Point, LLC10,027$827K0.05%+2113F-HRTimeline
Banco Santander, S.A.in group Banco Santander, S.A.9,446$779K0.01%new13F-HRTimelineGroup
Verition Fund Management LLC9,102$751K<0.01%-10,29613F-HRTimeline
Leonteq Securities AG9,020$744K0.04%-4,58213F-HRTimeline
KLP KAPITALFORVALTNING AS8,800$726K<0.01%013F-HRTimeline
VISTA INVESTMENT PARTNERS LLC8,712$719K0.2%new13F-HRTimeline
Ensign Peak Advisors, Inc8,590$709K<0.01%-3,70013F-HR/ATimeline
Mariner, LLCin group Mariner, LLC8,574$707K<0.01%+21913F-HRTimelineGroup
Quantinno Capital Management LP8,550$706K<0.01%+1,48713F-HRTimeline
Bridgefront Capital, LLC8,515$703K0.21%+2,58613F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC8,420$695K<0.01%new13F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…8,212$670K<0.01%+1,21413F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.8,084$667K<0.01%+51213F-HRTimelineGroup
OAK ASSOCIATES LTD /OH/7,803$644K0.04%-8213F-HRTimeline
CAPTRUST FINANCIAL ADVISORS7,777$642K<0.01%-1,53013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…7,722$637K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC7,363$608K<0.01%-3,72613F-HRTimelineGroup
CWM, LLCin group CWM, LLC7,300$602K<0.01%+1,27613F-HRTimelineGroup
OXFORD ASSET MANAGEMENT LLP6,207$512K0.17%+3,12313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
HighTower Advisors, LLC6,142$507K<0.01%new13F-HRTimeline
Cresset Asset Management, LLC6,047$499K<0.01%-6613F-HR/ATimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.5,800$479K0.01%+1,40013F-HR/ATimelineGroup
CENTAURUS FINANCIAL, INC.5,710$471K0.02%+10213F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV5,681$469K<0.01%+1,38713F-HRTimeline
Quantbot Technologies LP5,515$455K0.01%-6,27413F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…5,444$449K<0.01%-6,35713F-HRTimelineGroup
SIMPLEX TRADING, LLC5,290$436K0.01%-81313F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS5,277$435K<0.01%-83913F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…5,223$431K<0.01%-1,09213F-HRTimelineGroup
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC5,007$413K0.11%new13F-HRTimelineGroup
FIRST COMMUNITY TRUST NA5,000$413K0.32%013F-HRTimeline
Oak Harvest Investment Services5,000$413K0.05%new13F-HRTimeline
Lombard Odier Asset Management (USA) Co…4,950$408K0.09%-1,48813F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC4,912$405K<0.01%-12413F-HRTimelineGroup
BANQUE PICTET & CIE SA4,788$395K<0.01%-3013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC4,619$381K<0.01%-12813F-HRTimeline
Bayforest Capital Ltd4,554$376K0.18%-4,90713F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,512$372K<0.01%-11813F-HRTimelineGroup
CIBC Bancorp USA Inc.group of 2 filers holding4,504$372K+3,343Timeline
BAILARD, INC.4,208$347K0.01%+813F-HRTimeline
CIM INVESTMENT MANAGEMENT INC4,188$346K0.09%-4,51013F-HRTimeline
PharVision Advisers, LLC4,153$343K0.19%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…4,125$340K<0.01%013F-HRTimeline
TRUST POINT INC.3,884$321K0.03%+23813F-HRTimeline
State of Tennessee, Department of Treas…3,828$316K<0.01%-5,82513F-HRTimeline
Arax Advisory Partners3,799$313K<0.01%+3,56313F-HRTimeline