13F

Stock

Ambarella Inc

AMBA · held by 303 managers

Reported value

$1.76B

Holders

303

+53 new · −75 exited

Holders’ est. mark

−$388.9M

Price effect on 203 books still in the name

Largest holder

$195M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.3.79M$195M−$73.4MCut−$76.1M
VANGUARD PORTFOLIO MANAGEMENT LLC3.72M$191.3MHeld
State Street1.98M$101.7M−$33MCut−$18.9M
VANGUARD CAPITAL MANAGEMENT LLC1.81M$93.4MHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE1.59M$81.6M−$20.5MAdded$6.47M
MILLENNIUM MANAGEMENT LLC1.51M$77.9M−$3.29MAdded$65.8M
GEODE CAPITAL MANAGEMENT, LLC1.03M$53M−$19.8MCut−$19.3M
Citadel931.9K$48M−$10.4MAdded$10M
Legal & General Group Plc926.4K$47.7M−$11.9MAdded$4.19M
MORGAN STANLEY724.7K$37.3M−$14MCut−$27.3M
DIMENSIONAL FUND ADVISORS LP638.6K$32.9M−$9.66MCut−$2.46M
Connor, Clark & Lunn Investment Management Ltd.600.5K$30.9M−$10.8MCut−$8.56M
EXCHANGE TRADED CONCEPTS, LLC571.6K$29.4M−$6.84MAdded$4.41M
FIFTHDELTA Ltd546.5K$28.1MNew
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.541.9K$27.7M−$8.58MCut−$3.27M
Point72 Asset Management, L.P.521.2K$26.8M−$10.1MCut−$27.9M
Icahn Capital495.8K$25.5M−$4.57MAdded$8.81M
Nuveen, LLC487.8K$25.1M−$9.24MCut−$8.67M
BANK OF AMERICA CORP /DE/481.8K$24.8M−$8.65MCut−$6.86M
Stephens Investment Management Group LLC475.1K$24.5M−$9.2MCut−$9.33M
Squarepoint Ops LLC460.6K$23.7M−$8.92MCut−$32.5M
JPMORGAN CHASE & CO473.8K$23M−$5.94MAdded$4.07M
PINNACLE ASSOCIATES LTD430.2K$22.1M−$6.96MCut−$3.3M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.384.8K$19.8M$15.9MAdded$19.8M
NORTHERN TRUST CORP374.8K$19.3M−$7.05MCut−$6.49M
JACOBS LEVY EQUITY MANAGEMENT, INC364.4K$18.8M−$6.17MCut−$3.8M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC363.3K$18.7M−$7.04MCut−$7.17M
Woodline Partners LP349.5K$18MNew
UBS Group AG314K$16.2M−$6.08MCut−$28.9M
Fidelity302.3K$15.6M−$5.45MCut−$4.37M
OBERWEIS ASSET MANAGEMENT INC/295.2K$15.2M−$5.72MCut−$28.6M
Balyasny Asset Management L.P.289.8K$14.9M−$5.61MCut−$10.6M
VANGUARD FIDUCIARY TRUST CO284.3K$14.6MHeld
HAWK RIDGE CAPITAL MANAGEMENT LP276.1K$14.2MNew
MARSHALL WACE, LLP249.5K$12.8M−$4.83MCut−$9.72M
D. E. Shaw & Co., Inc.245.2K$12.6MNew
Walleye Capital LLC210.9K$10.9M−$177.5KAdded$10.2M
GOLDMAN SACHS GROUP INC209.8K$10.8M−$4.02MCut−$3.91M
Renaissance Technologies199.4K$10.3MNew
RAYMOND JAMES FINANCIAL INC186.3K$9.16M−$3.87MCut−$4.06M
SUSQUEHANNA INTERNATIONAL GROUP, LLP153.7K$7.91M−$2.98MCut−$7.85M
Freemont Management S.A.135.8K$6.99M−$747.3KAdded$4.26M
FIRST TRUST ADVISORS LP132.9K$6.84M−$2.57MCut−$3.54M
WESTERLY CAPITAL MANAGEMENT, LLC130K$6.69M−$1.65MAdded$670.4K
MAIRS & POWER INC117.6K$6.05MNew
Shannon River Fund Management LLC114.9K$5.92M−$2.23MCut−$15.4M
Bank of New York Mellon Corp112.2K$5.78M−$2.17MCut−$2.47M
Portolan Capital Management, LLC108.7K$5.6M−$1.05MAdded$1.76M
Hillsdale Investment Management Inc.107K$5.51M−$2.03MCut−$1.92M
Robeco Schweiz AG104.2K$5.36M−$2.02MCut−$6.16M
DEUTSCHE BANK AG\95.5K$4.91M−$1.85MCut−$2.04M
Engineers Gate Manager LP93.9K$4.84M−$1.82MCut−$4.02M
Allianz Asset Management GmbH92.6K$4.77MNew
SWS Partners91.4K$4.71M−$1.73MCut−$1.61M
SEI INVESTMENTS CO89.1K$4.59M−$1.25MAdded$24.3K
ArrowMark Colorado Holdings LLC89K$4.58M−$1.07MAdded$685.1K
Russell Investments Group, Ltd.88.3K$4.55M−$1.37MCut−$474.2K
Invesco Ltd.87.8K$4.52M−$1.58MCut−$1.28M
PANAGORA ASSET MANAGEMENT INC87.2K$4.49MNew
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC83.1K$4.28M−$1.56MCut−$1.44M
ESSEX INVESTMENT MANAGEMENT CO LLC82.4K$4.24M−$1.6MCut−$1.7M
Mitsubishi UFJ Asset Management Co., Ltd.81.9K$4.22M−$1.92MCut−$1.89M
Swiss National Bank80.8K$4.16M−$1.55MCut−$1.51M
FRANKLIN RESOURCES INC77.4K$3.98M−$1.06MAdded$102.6K
ALLIANCEBERNSTEIN L.P.44.3K$3.14M$0Cut−$5.31M
SORA INVESTORS LLC59.1K$3.04M−$1.14MCut−$8.49M
DNB Asset Management AS57.7K$2.97M−$913.2KCut−$371.1K
RHUMBLINE ADVISERS56.7K$2.92M−$1.08MCut−$1.04M
Trexquant Investment LP49.3K$2.54M−$954.6KCut−$7.79M
WELLS FARGO & COMPANY/MN48.4K$2.49M−$937.9KCut−$4.03M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM47.9K$2.47M−$748.4KCut−$271K
Granite Investment Partners, LLC44.2K$2.28M−$537.7KAdded$310.1K
Y-Intercept (Hong Kong) Ltd43.1K$2.22M−$828.9KCut−$815.3K
Susquehanna Portfolio Strategies, LLC42.2K$2.17M−$817.2KCut−$1.29M
Samjo Management, LLC41.6K$2.14MNew
Pacer Advisors, Inc.33.9K$2.11M$95.8KAdded$1.81M
AMERIPRISE FINANCIAL INC40.6K$2.09M−$786.6KCut−$2.16M
VANGUARD ASSET MANAGEMENT, Ltd36.1K$1.86MHeld
Holocene Advisors, LP35.5K$1.83MNew
Creative Planning34.5K$1.78M−$497.3KCut−$41.8K
OCCUDO QUANTITATIVE STRATEGIES LP25.2K$1.73M−$9.48KAdded$1.41M
IEQ CAPITAL, LLC32.4K$1.67M−$219.6KAdded$865K
Brevan Howard Capital Management LP30.8K$1.58MNew
CITIGROUP INC30.3K$1.56M−$587.2KCut−$616.2K
Man Group plc29K$1.49M−$481.1KCut−$268.1K
STIFEL FINANCIAL CORP27.3K$1.4M−$194.2KAdded$692.4K
IMC-Chicago, LLC25.6K$1.32M−$495.9KCut−$1.82M
Quantbot Technologies LP25.2K$1.3M−$459.1KCut−$380.9K
DARK FOREST CAPITAL MANAGEMENT LP23.1K$1.19MNew
MetLife Investment Management, LLC22.9K$1.18M−$439.2KCut−$427.3K
LOS ANGELES CAPITAL MANAGEMENT LLC20.8K$1.07M−$622.2KCut−$513.9K
Leonteq Securities AG20.3K$1.05M−$394.1KCut−$856K
Mariner, LLC20.3K$1.04M−$142.1KAdded$523.2K
NEEDHAM INVESTMENT MANAGEMENT LLC20K$1.03MNew
PRIMECAP MANAGEMENT CO/CA/19.4K$998.6K−$375.7KCut−$382.8K
CANADA PENSION PLAN INVESTMENT BOARD19.2K$988.3K−$304KCut−$123.9K
Collar Capital Management, LLC18.6K$959.9K−$361.1KCut−$470.2K
Pathstone Holdings, LLC18.3K$941.4K−$331.3KCut−$270.4K
MCDONALD PARTNERS LLC18.1K$937.9K−$342.2KCut−$374.1K
JANUS HENDERSON GROUP PLC17.9K$921.3K−$346.3KCut−$346.3K
Marex Group plc17.9K$920.7K−$215.3KAdded$133.1K
Linden Thomas Advisory Services, LLC17.1K$878.8K−$328.7KCut−$323.7K
XTX Topco Ltd17K$876.9KNew
Magnetar Financial LLC17K$875.8K−$78.1KAdded$590K
CWM, LLC16.9K$869.8K$341.8KAdded$869.4K
VIRTUS ADVISERS, LLC16.8K$866.3K−$325.9KCut−$325.9K
Vanguard Global Advisers, LLC16.7K$861.5KHeld
Cerity Partners LLC16K$825.5K−$152.4KAdded$267.9K
SBI Okasan Asset Management Co.Ltd.16.7K$812.5K−$357.7KCut−$532.9K
BARCLAYS PLC15.7K$806.5K−$303.4KCut−$48.4M
Legato Capital Management LLC15.5K$797.6K−$300.1KCut−$316K
INTECH INVESTMENT MANAGEMENT LLC15.2K$783.6K−$294.8KCut−$710K
BNP PARIBAS FINANCIAL MARKETS14.9K$767.8K−$288.8KCut−$15.6M
BOOTHBAY FUND MANAGEMENT, LLC14.8K$759.8K−$270.2KCut−$228.6K
SteelPeak Wealth, LLC14.7K$756.2K−$81.2KAdded$459.1K
MACKENZIE FINANCIAL CORP14.6K$753.9K−$265.9KCut−$602.8K
Red Spruce Capital, LLC14.6K$753.6K−$283.5KCut−$283.7K
NEW YORK STATE COMMON RETIREMENT FUND14.6K$749.5K−$282KCut−$282K
STRS OHIO14.4K$741.2K−$278.9KCut−$278.9K
LAZARD ASSET MANAGEMENT LLC14.1K$724.2K−$267.9KCut−$255.9K
Qube Research & Technologies Ltd13.7K$703.1K−$264.5KCut−$12.2M
Robeco Institutional Asset Management B.V.13K$668.3K−$219.9KCut−$135.9K
TWO SIGMA INVESTMENTS, LP12.8K$657.2K−$191.1KCut−$41.8K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC16.9K$651.9K−$331.6KAdded$26.8K
NANO CAP NEW MILLENNIUM GROWTH FUND L P12K$617.7K−$19.4KAdded$546.9K
WHITE PINE CAPITAL LLC11.3K$583.5K−$219.5KCut−$404.9K
ARIZONA STATE RETIREMENT SYSTEM11.2K$578.2K−$216.5KCut−$213.6K
OSAIC HOLDINGS, INC.11.2K$577.8K−$145.6KAdded$45.1K
Police & Firemen's Retirement System of New Jersey10.8K$555.5K−$209KCut−$209K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM10.8K$553.9K−$208.4KCut−$208.4K
DIVERSIFIED TRUST CO10.6K$547.6KNew
Counterpoint Mutual Funds LLC10.6K$547.6KNew
Zurcher Kantonalbank (Zurich Cantonalbank)10.4K$535.3K−$166.9KCut−$75.3K
OFI INVEST ASSET MANAGEMENT12K$534.9K−$187.3KCut−$187.3K
CAPTRUST FINANCIAL ADVISORS10.3K$530.9K−$177.3KCut−$116.9K
MERCER GLOBAL ADVISORS INC /ADV10.3K$529.2K−$90.6KAdded$197.7K
ROYAL BANK OF CANADA10.3K$529K−$198.6KCut−$1.44M
Quantinno Capital Management LP10.1K$520K−$195.7KCut−$529.6K
GAMCO INVESTORS, INC. ET AL9.85K$507.2K−$157.8KCut−$69.9K
Vanguard Investments Australia, Ltd.9.83K$505.8KHeld
MIRABELLA FINANCIAL SERVICES LLP9.71K$499.6K−$82.6KAdded$197.5K
ProShare Advisors LLC9.65K$496.9K−$186.9KCut−$316.7K
STATE OF WISCONSIN INVESTMENT BOARD9.49K$488.7K−$160.8KCut−$99.5K
ENVESTNET ASSET MANAGEMENT INC9.14K$470.4K−$176.9KCut−$2.36M
KLP KAPITALFORVALTNING AS9.1K$468.4K−$170.4KCut−$155K
Themes Management Co LLC9.08K$467.2K−$175.8KCut−$232.5K
GREENWOOD CAPITAL ASSOCIATES LLC8.99K$462.6K−$118.4KAdded$29.3K
Hennion & Walsh Asset Management, Inc.8.94K$460K−$124.1KAdded$6.02K
TD Asset Management Inc8.71K$448.6KNew
ExodusPoint Capital Management, LP8.68K$446.6K−$168KCut−$2.84M
Krane Funds Advisors LLC8.63K$437.5K−$173.6KCut−$189.3K
FORA Capital, LLC7.11K$366.2KNew
Mirae Asset Global Investments Co., Ltd.7.08K$364.6K−$124.3KCut−$90.1K
VOYA INVESTMENT MANAGEMENT LLC7.06K$363.3K−$136.7KCut−$153K
PFG Advisors7.04K$362.6KNew
LPL Financial LLC7K$360.2K−$135.5KCut−$648.6K
Walleye Trading LLC6.98K$359.5KNew
Perbak Capital Partners LLP6.96K$358.5K−$66.4KAdded$115.4K
State of Wyoming6.93K$357K−$22.8KAdded$273.7K
Bridgefront Capital, LLC6.61K$340.1KNew
OAK ASSOCIATES LTD /OH/6.58K$338.7K−$127.4KCut−$186.5K
Pictet Asset Management Holding SA6.52K$335.4K−$112.4KCut−$75.7K
PRUDENTIAL FINANCIAL INC6.4K$329.6KNew
Vident Advisory, LLC6.2K$319K−$101.9KCut−$54K
Schonfeld Strategic Advisors LLC6.11K$314.5KNew
HighPoint Advisor Group LLC6.1K$314.2KNew
CIM INVESTMENT MANAGEMENT INC6K$308.7K−$81.1KAdded$12.1K
JONES FINANCIAL COMPANIES LLLP6.11K$308.2K−$7.98KAdded$280.4K
NATIXIS5.92K$304.9KNew
Headlands Technologies LLC5.83K$300.2K−$112.9KCut−$857.2K
Cresset Asset Management, LLC5.66K$291.6K−$109.7KCut−$126.5K
INCEPTIONR LLC5.63K$289.8KNew
Krilogy Financial LLC4.88K$279.6K−$30.4KAdded$70K
Graham Capital Management, L.P.5.38K$276.9K−$104.2KCut−$934.8K
Universal- Beteiligungs- und Servicegesellschaft mbH5.36K$275.6K−$103.7KCut−$3.06M
Impact Partnership Wealth, LLC5.34K$274.7K−$76.6KCut−$5.43K
WINTON GROUP Ltd5.2K$267.7KNew
Vanguard Personalized Indexing Management, LLC5.16K$265.6K−$87.7KCut−$55.1K
FIRST COMMUNITY TRUST NA5K$257.4K−$96.8KCut−$96.8K
Phoenix Financial Ltd.4.9K$252.1K−$89.8KCut−$89.8K
AMERICAN CENTURY COMPANIES INC4.86K$250K−$89.4KCut−$77.1K
CAPSTONE INVESTMENT ADVISORS, LLC4.85K$249.8K−$94KCut−$288.5K
Sumitomo Mitsui DS Asset Management Company, Ltd4.73K$243.5K−$85.5KCut−$69.1K
VICTORY CAPITAL MANAGEMENT INC4.66K$239.8K−$90.2KCut−$91.6K
STEPHENS INC /AR/4.38K$225.2K−$74.7KCut−$48.2K
Tidal Investments LLC4.24K$218.4KNew
BAILARD, INC.4.2K$216.2K−$81.3KCut−$81.3K
COMMONWEALTH EQUITY SERVICES, LLC3.98K$204.6K−$70.5KCut−$53.4K
Sanctuary Advisors, LLC3.92K$201.9K−$76KCut−$124.5K
NorthCrest Asset Manangement, LLC3.97K$200.7K−$94.4KCut−$73.2K
Amundi3.89K$200.1K−$75.3KCut−$97.1K
State of Tennessee, Department of Treasury3.62K$186.5K−$45.5KCut−$45.5K
Archer Investment Corp3.57K$184KNew
Rockefeller Capital Management L.P.3.48K$178.9K−$67.3KCut−$116K
Ameritas Investment Partners, Inc.3.4K$175.2K−$65.9KCut−$65.9K
SIMPLEX TRADING, LLC3.24K$166.9K−$62.8KCut−$387.3K
Tower Research Capital LLC (TRC)2.86K$147.2K−$43.7KCut−$12.6K
Asset Management One Co., Ltd.2.8K$144.2K−$52.1KCut−$82.3K
Ensign Peak Advisors, Inc2.64K$135.9K−$51.1KCut−$51.1K
Western Wealth Management, LLC2.5K$128.7KNew
Allworth Financial LP1.98K$101.8K−$8.06KAdded$72.3K
Advisors Asset Management, Inc.1.97K$101.3K−$38.1KCut−$39.5K
GROUP ONE TRADING LLC1.79K$92.2KNew
Johnson Financial Group, Inc.1.02K$52.4K−$19.7KCut−$19.7K
Bayforest Capital Ltd976$50.2K−$3.2KAdded$38.6K
PRICE T ROWE ASSOCIATES INC /MD/952.3K$49K−$16.7KCut−$12.2K
Farther Finance Advisors, LLC882$45.1K−$17.4KCut−$25.9K
Eurizon Capital SGR S.p.A.874$42.5KNew
US BANCORP \DE\820$42.2K−$15.9KCut−$104.1K
ROTHSCHILD INVESTMENT LLC805$41.4K−$12.5KCut−$4.25K
NOMURA ASSET MANAGEMENT CO LTD750$38.6K−$14.5KCut−$14.5K
MAI Capital Management718$37K−$427Added$35.4K
EverSource Wealth Advisors, LLC668$34.4K−$8.06KAdded$4.92K
Cassaday & Co Wealth Management LLC585$30.1KNew
SBI Securities Co., Ltd.570$29.3K−$11KCut−$74.4K
PNC Financial Services Group, Inc.545$28.1K−$10.6KCut−$270.6K
SIGNATUREFD, LLC541$27.8K−$10.2KCut−$9.62K
Essential Partners LLC481$24.8K−$4.9KAdded$6.84K
NISA INVESTMENT ADVISORS, LLC479$24.7K−$7.71KCut−$3.54K
Federation des caisses Desjardins du Quebec463$23.8K−$8.91KCut−$8.75K
IFP Advisors, Inc429$22.1K−$3.83KAdded$8.06K
ALGERT GLOBAL LLC409.2K$21.1K−$4.03KAdded$6.34K
Advisory Services Network, LLC401$20.6KNew
Handelsbanken Fonder AB396.7K$20.4K−$6.05KCut−$1.71K
AdvisorNet Financial, Inc370$19K−$5.23KCut−$81
GAMMA Investing LLC356$18.3K−$6.53KCut−$5.55K
Kemnay Advisory Services Inc.336$17.3K−$6.51KCut−$53.7K
Arax Advisory Partners294$15.1K−$5.69KCut−$10.2K
Optiver Holding B.V.279$14.4KNew
Blue Trust, Inc.278$14.3K−$5.39KCut−$5.39K
JPL Wealth Management, LLC275$14.2KNew
Sterling Capital Management LLC268$13.8K−$5.09KCut−$4.84K
T. Rowe Price Investment Management, Inc.257.8K$13.3KNew
Larson Financial Group LLC249$12.8K−$3.85KCut−$1.27K
Global X Japan Co., Ltd.229$11.8K−$3.29KCut−$255
Root Financial Partners, LLC228$11.7KNew
Versant Capital Management, Inc205$10.5K−$3.97KCut−$15.7K
REAP Financial Group, LLC200$10.3KNew
PINNEY & SCOFIELD, INC.200$10.3KNew
QUADRANT CAPITAL GROUP LLC178$9.16K−$3.45KCut−$3.45K
Steward Partners Investment Advisory, LLC175$9.01K−$3.39KCut−$28.2K
Parallel Advisors, LLC171$8.8K−$3.31KCut−$3.38K
Strive Financial Group ,LLC128$7KNew
Truvestments Capital LLC135$6.96K−$2.61KCut−$11.6K
Greykasell Wealth Strategies, Inc.115$5.92K−$2.23KCut−$2.23K
True Wealth Design, LLC114$5.87K−$330Added$4.66K
Smartleaf Asset Management LLC120$5.84K−$2.53KCut−$2.53K
UMB Bank, n.a.110$5.66K−$2.13KCut−$7.8K
Pinnacle Wealth Planning Services, Inc.103$5.3K−$1.99KCut−$2K
Cedar Mountain Advisors, LLC100$5.15K−$1.94KCut−$1.94K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.