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Disclosery

AMBA AMBARELLA INC

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SHS (common), issuer CIK 1280263

295 managers (307 13F filers) reported a position in AMBA shares at 2026-03-31, 36,505,853 shares in all. 54 filers opened a position and 75 filers sold out during the quarter.

Managers
295
13F filers
307
New
54
Added
114
Reduced
85
Sold out
75
Shares held by filers
36,505,853

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, 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
VANGUARD GROUP INCgroup of 7 filers holding5,883,578$303M+5,879,051Timeline
BlackRock, Inc.in group BlackRock, Inc.3,789,215$195M<0.01%-38,63413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,976,464$102M<0.01%+273,97113F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …1,586,082$81.6M0.07%+524,93713F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,512,539$77.9M0.06%+1,342,68713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,029,229$53M<0.01%+8,70213F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/952,315$49M0.01%+87,70513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC931,862$48M0.03%+396,18813F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc926,396$47.7M0.01%+312,37913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY724,655$37.3M<0.01%-186,82213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP638,587$32.9M0.01%+139,92813F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…600,506$30.9M0.07%+43,34713F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC571,580$29.4M0.23%+218,47913F-HRTimeline
FIFTHDELTA Ltd546,538$28.1M3.88%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding548,984$28.1M+104,397Timeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.521,211$26.8M0.05%-250,82213F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC495,815$25.5M0.01%+259,96813F-HRTimelineGroup
Nuveen, LLCin group TIAA487,820$25.1M0.01%+10,92213F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/481,758$24.8M<0.01%+34,84313F-HRTimelineGroup
Stephens Investment Management Group LLCgroup of 2 filers holding479,516$24.7M-1,292Timeline
Squarepoint Ops LLCin group Squarepoint Ops LLC460,580$23.7M0.05%-333,16513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO473,762$23M<0.01%+205,89013F-HR/ATimelineGroup
PINNACLE ASSOCIATES LTD430,249$22.1M0.28%+71,02713F-HRTimeline
ALGERT GLOBAL LLC409,220$21.1M0.32%+201,30013F-HR/ATimeline
UBS Group AGgroup of 2 filers holding397,150$20.4M-319,181Timeline
Handelsbanken Fonder AB396,690$20.4M0.07%+84,36413F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …384,796$19.8M0.02%+75,58113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP374,780$19.3M<0.01%+10,76613F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC364,429$18.8M0.08%+46,00013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co363,291$18.7M<0.01%-1,92813F-HRTimelineGroup
Woodline Partners LP349,479$18M0.07%new13F-HR/ATimeline
FMR LLCin group FMR LLC302,337$15.6M<0.01%+20,96713F-HRTimelineGroup
OBERWEIS ASSET MANAGEMENT INC/295,185$15.2M0.45%-322,67513F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management289,849$14.9M0.03%-70,05013F-HRTimelineGroup
HAWK RIDGE CAPITAL MANAGEMENT LP276,100$14.2M0.52%new13F-HRTimeline
T. Rowe Price Investment Management, In…257,800$13.3M0.01%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP249,542$12.8M0.01%-68,94613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.245,165$12.6M0.01%new13F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding217,918$11.2M+208,754Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC209,817$10.8M<0.01%+2,19213F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC199,400$10.3M0.02%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding195,943$10.1M-75,489Timeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC186,296$9.16M<0.01%-2,74213F-HRTimelineGroup
Freemont Management S.A.135,800$6.99M1.31%+97,21113F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP132,938$6.84M<0.01%-13,67413F-HRTimelineGroup
WESTERLY CAPITAL MANAGEMENT, LLC130,000$6.69M2.06%+45,00013F-HRTimeline
MAIRS & POWER INC117,581$6.05M0.06%new13F-HRTimeline
Robeco Institutional Asset Management B…group of 2 filers holding117,137$6.03M-56,811Timeline
Shannon River Fund Management LLC114,940$5.92M1.13%-186,15313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp112,192$5.78M<0.01%-4,15013F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …108,749$5.6M0.3%+54,50713F-HRTimelineGroup
Hillsdale Investment Management Inc.107,000$5.51M0.15%+2,10013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\95,460$4.91M<0.01%-2,72913F-HRTimelineGroup
Engineers Gate Manager LP93,943$4.84M0.06%-31,11613F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE92,600$4.77M0.01%new13F-HRTimelineGroup
SWS Partners91,437$4.71M1.16%+2,24613F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO89,139$4.59M<0.01%+24,71113F-HRTimelineGroup
ArrowMark Colorado Holdings LLC89,000$4.58M0.12%+34,00013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…88,320$4.55M<0.01%+17,43813F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.87,804$4.52M<0.01%+5,97613F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC87,167$4.49M0.02%new13F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC82,387$4.24M0.67%-1,45613F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…81,909$4.22M<0.01%+67213F-HRTimelineGroup
Swiss National Bank80,833$4.16M<0.01%+80013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources77,413$3.98M<0.01%+22,61013F-HRTimelineGroup
LORD, ABBETT & CO. LLC76,646$3.94M0.01%-3,08013F-HRTimeline
ALLIANCEBERNSTEIN L.P.44,258$3.14M<0.01%-75,02113F-HRTimeline
SORA INVESTORS LLC59,092$3.04M0.28%-103,64113F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS57,689$2.97M0.01%+10,53113F-HRTimelineGroup
RHUMBLINE ADVISERS56,654$2.92M<0.01%+80113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC54,200$2.79M<0.01%-67,18413F-HRTimelineGroup
SG Americas Securities, LLC51,367$2.64M<0.01%-3,85813F-HRTimeline
Trexquant Investment LP49,294$2.54M0.02%-96,43713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN48,433$2.49M<0.01%-43,59113F-HR/ATimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…47,918$2.47M<0.01%+9,27313F-HRTimeline
Granite Investment Partners, LLC44,240$2.28M0.14%+16,47113F-HRTimeline
Y-Intercept (Hong Kong) Ltd43,068$2.22M0.04%+26413F-HRTimeline
Samjo Management, LLC41,630$2.14M0.93%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC40,622$2.09M<0.01%-19,33613F-HR/ATimelineGroup
Holocene Advisors, LP35,460$1.83M<0.01%new13F-HRTimeline
Creative Planningin group Creative Planning34,524$1.78M<0.01%+8,84813F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP25,210$1.73M0.09%+20,56113F-HRTimeline
IEQ CAPITAL, LLC32,408$1.67M0.01%+21,07013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…30,759$1.58M0.02%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC30,324$1.56M<0.01%-40913F-HRTimelineGroup
Man Group plcin group Man Group plc28,984$1.49M<0.01%+4,13913F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP28,682$1.48M<0.01%-6,90013F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP27,253$1.4M<0.01%+17,22413F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.26,989$1.39M0.11%new13F-HRTimeline
IMC-Chicago, LLC25,608$1.32M0.02%-18,74913F-HRTimeline
Quantbot Technologies LP25,225$1.3M0.05%+1,51813F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP23,073$1.19M0.11%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…22,912$1.18M0.01%+23113F-HRTimelineGroup
KBC Group NVin group KBC Group NV21,795$1.12M<0.01%013F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC20,842$1.07M<0.01%+2,10413F-HRTimeline
Leonteq Securities AG20,349$1.05M0.06%-6,52113F-HRTimeline
Mariner, LLCin group Mariner, LLC20,304$1.04M<0.01%+12,92713F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP20,069$1.03M0.06%-4,73113F-HRTimeline
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…20,000$1.03M0.05%new13F-HRTimelineGroup
PRIMECAP MANAGEMENT CO/CA/19,400$999K<0.01%-10013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD19,200$988K<0.01%+3,50013F-HRTimeline
Collar Capital Management, LLC18,648$960K0.62%-1,54013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC18,289$941K<0.01%+1,18313F-HRTimelineGroup
MCDONALD PARTNERS LLC18,071$938K0.22%-45013F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson17,898$921K<0.01%013F-HR/ATimelineGroup
Marex Group Ltdin group Marex Group Ltd17,886$921K0.01%+6,76813F-HRTimelineGroup
Linden Thomas Advisory Services, LLC17,073$879K0.08%+9813F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd17,035$877K0.02%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC17,014$876K0.01%+12,98013F-HRTimelineGroup
CWM, LLCin group CWM, LLC16,898$870K<0.01%+10,24813F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…16,830$866K0.4%013F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC16,037$826K<0.01%+8,16613F-HRTimelineGroup
SBI Okasan Asset Management Co.Ltd.16,700$812K0.03%-2,50013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC15,668$807K<0.01%-679,41813F-HRTimelineGroup
Legato Capital Management LLC15,495$798K0.07%-22513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC15,222$784K0.01%-5,86113F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS14,915$768K<0.01%-216,30313F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC14,761$760K0.02%+80813F-HRTimeline
SteelPeak Wealth, LLC14,691$756K0.02%+10,49713F-HRTimeline
MACKENZIE FINANCIAL CORP14,645$754K<0.01%-4,83813F-HRTimeline
Red Spruce Capital, LLC14,641$754K0.31%-313F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND14,560$749K<0.01%013F-HRTimeline
STRS OHIO14,400$741K<0.01%013F-HRTimeline
Summit Global Investmentsin group Summit Global Investments14,242$733K0.04%+1,33613F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC14,069$724K<0.01%+23413F-HRTimelineGroup
WHITE PINE CAPITAL LLC13,685$704K0.19%-26713F-HR/ATimeline
Qube Research & Technologies Ltd13,660$703K<0.01%-168,61513F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP12,768$657K<0.01%+2,90013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…16,871$652K<0.01%+9,27413F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P12,000$618K0.58%+11,00013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM11,233$578K<0.01%+5513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.11,225$578K<0.01%+3,70413F-HRTimelineGroup
Police & Firemen's Retirement System of…10,792$556K<0.01%013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…10,760$554K<0.01%013F-HRTimeline
DIVERSIFIED TRUST CO10,638$548K0.01%new13F-HRTimeline
Counterpoint Mutual Funds LLC10,638$548K0.08%new13F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,574$544K<0.01%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…10,400$535K<0.01%+1,78013F-HRTimeline
OFI INVEST ASSET MANAGEMENT11,974$535K0.01%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS10,318$531K<0.01%+1,17313F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV10,280$529K<0.01%+5,60113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA10,267$529K<0.01%-17,57513F-HRTimelineGroup
Quantinno Capital Management LP10,102$520K<0.01%-4,71413F-HRTimeline
GAMCO INVESTORS, INC. ET ALin group GAMCO Investors (Gabelli)9,854$507K<0.01%+1,70713F-HRTimelineGroup
Keel Point, LLC9,835$506K0.03%-17413F-HRTimeline
MIRABELLA FINANCIAL SERVICES LLP9,705$500K0.05%+5,44113F-HRTimeline
ProShare Advisors LLC9,654$497K<0.01%-1,83113F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD9,494$489K<0.01%+1,19113F-HRTimeline
STONERIDGE INVESTMENT PARTNERS LLC9,301$479K0.35%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC9,138$470K<0.01%-30,82913F-HRTimelineGroup
KLP KAPITALFORVALTNING AS9,100$468K<0.01%+30013F-HRTimeline
Themes Management Co LLC9,077$467K0.29%-80113F-HRTimeline
GREENWOOD CAPITAL ASSOCIATES LLC8,986$463K0.05%+2,87013F-HRTimeline
Hennion & Walsh Asset Management, Inc.8,937$460K0.02%+2,52813F-HRTimeline
TD Asset Management Inc8,714$449K<0.01%new13F-HRTimeline
ExodusPoint Capital Management, LP8,677$447K<0.01%-37,76913F-HRTimeline
Krane Funds Advisors LLC8,626$438K0.02%-22213F-HRTimeline
FORA Capital, LLC7,114$366K0.03%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC7,057$363K<0.01%-23113F-HRTimelineGroup
PFG Advisors7,045$363K0.02%new13F-HRTimeline
LPL Financial LLC6,998$360K<0.01%-7,24313F-HRTimeline
Perbak Capital Partners LLP6,964$358K0.09%+3,53313F-HRTimeline
State of Wyoming6,935$357K0.04%+5,75913F-HRTimeline
Bridgefront Capital, LLC6,608$340K0.08%new13F-HRTimeline
OAK ASSOCIATES LTD /OH/6,579$339K0.02%-83413F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…6,516$335K<0.01%+71213F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC6,404$330K<0.01%new13F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC6,197$319K<0.01%+93213F-HRTimelineGroup
Schonfeld Strategic Advisors LLC6,109$314K<0.01%new13F-HRTimeline
HighPoint Advisor Group LLC6,104$314K0.01%new13F-HRTimeline
CIM INVESTMENT MANAGEMENT INC5,998$309K0.08%+1,81013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP6,106$308K<0.01%+5,71413F-HRTimelineGroup
NATIXISin group Natixis Investment Managers5,923$305K<0.01%new13F-HRTimelineGroup
Headlands Technologies LLC5,831$300K0.03%-10,50613F-HRTimeline
Cresset Asset Management, LLC5,664$292K<0.01%-23813F-HRTimeline
INCEPTIONR LLC5,629$290K0.07%new13F-HRTimeline
Krilogy Financial LLC4,878$280K0.01%+1,75213F-HRTimeline
Graham Capital Management, L.P.5,380$277K0.01%-11,72513F-HRTimeline
Pacer Advisors, Inc.5,360$276K<0.01%+1,12913F-HR/ATimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …5,355$276K<0.01%-41,77313F-HRTimelineGroup
Impact Partnership Wealth, LLC5,336$275K0.03%+1,38213F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd5,200$268K0.01%new13F-HRTimelineGroup
FIRST COMMUNITY TRUST NA5,000$257K0.19%013F-HRTimeline
Jackson Creek Investment Advisors LLC4,943$254K0.07%-913F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.4,900$252K<0.01%013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC4,857$250K<0.01%+24013F-HRTimelineGroup
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…4,853$250K<0.01%-2,74613F-HRTimelineGroup
AlphaGrep UK Ltd4,774$246K0.07%-64213F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…4,730$243K<0.01%+31713F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC4,659$240K<0.01%-2013F-HRTimeline
CENTAURUS FINANCIAL, INC.4,420$228K0.01%-41513F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC4,242$218K<0.01%new13F-HRTimelineGroup
BAILARD, INC.4,200$216K<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…4,125$212K<0.01%013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC3,975$205K<0.01%+33313F-HRTimeline
Sanctuary Advisors, LLC3,922$202K<0.01%-68513F-HRTimeline
NorthCrest Asset Manangement, LLC3,972$201K0.01%+42013F-HRTimeline
Amundiin group Amundi3,887$200K<0.01%-30813F-HRTimelineGroup
State of Tennessee, Department of Treas…3,624$187K<0.01%013F-HRTimeline
Archer Investment Corp3,574$184K0.04%new13F-HRTimeline