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Ambarella Inc

AMBA
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001280263

In the last 90 days, Ambarella Inc insiders filed 0 open-market purchases and 9 sales; 341 institutions reported holding it in 13F filings for Q2 2026, worth $3.13B in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Ambarella Inc changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of AMBA: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders3052329+26
Shares35.1M5.59K35.6M+432.6K (+1.2%)
Value$2.32B$369.3K$2.93B+$613.6M (+26.4%)

2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (66)

Institutions that held Ambarella Inc at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to AMBA in Q3 2025
InstitutionSharesValue% of portfolio
Driehaus Capital Management LLC381,131$31.5M0.23%
AXA Investment Managers S.A.332,581$27.4M0.07%
Point72 Asset Management, L.P.121,611$10.0M0.02%
HRT Financial LP78,262$6.46M0.02%
Readystate Asset Management LP72,945$6.02M0.29%
G2 Investment Partners Management LLC66,000$5.45M1.12%
Jump Financial, LLC63,053$5.20M0.07%
AIGH Capital Management LLC50,000$4.13M1.44%
IMC-Chicago, LLC27,228$2.25M0.04%
Prudential Financial Inc26,460$2.18M0.00%
Point72 Hong Kong Ltd24,212$2.00M0.09%
Boothbay Fund Management, LLC23,046$1.90M0.05%
Caption Management, LLC21,171$1.75M0.10%
Main Management ETF Advisors, LLC17,050$1.41M0.05%
Headlands Technologies LLC16,387$1.35M0.11%
Aquatic Capital Management LLC15,674$1.29M0.02%
Connective Capital Management, LLC13,934$1.15M1.06%
Bayesian Capital Management, LP11,400$940.7K0.19%
Steel Peak Wealth Management LLC10,129$835.8K0.03%
Banco Santander, S.A.9,446$779.5K0.01%
Vista Investment Partners LLC8,712$718.9K0.20%
Magnetar Financial LLC8,420$694.8K0.00%
HighTower Advisors, LLC6,142$506.8K0.00%
Mitsubishi UFJ Trust & Banking Corp5,251$433.3K0.00%
WBI Investments5,007$413.2K0.11%
Oak Harvest Investment Services5,000$412.6K0.05%
CIBC Bancorp USA Inc.4,343$358.4K0.00%
PharVision Advisers, LLC4,153$342.7K0.19%
Scientech Research LLC3,548$292.8K0.10%
CAPROCK Group, Inc.3,481$287.1K0.01%
Rockefeller Capital Management L.P.3,441$284.0K0.00%
Aigen Investment Management, LP3,207$264.6K0.04%
DRW Securities, LLC3,187$263.5K0.01%
Change Path, LLC3,169$261.5K0.01%
Principal Financial Group Inc3,119$257.4K0.00%
Cetera Investment Advisers2,924$241.3K0.00%
Pallas Capital Advisors LLC2,919$240.9K0.01%
Farringdon Capital, Ltd.2,904$239.6K0.06%
Heritage Family Offices, LLP2,870$236.8K0.11%
Point72 (DIFC) Ltd2,866$236.5K0.02%
McCollum Christoferson Group LLC2,750$226.9K0.07%
First Manhattan Co2,745$226.5K0.00%
Gotham Asset Management, LLC2,672$220.5K0.00%
TradeLink Capital LLC2,630$217.0K1.69%
Group One Trading, L.P.2,611$215.5K0.01%
Two Sigma Advisers, LP2,600$214.6K0.00%
Stoneridge Investment Partners LLC2,569$212.0K0.15%
Western Wealth Management, LLC2,500$206.3K0.01%
Torrey Growth & Income Advisors2,500$206.3K0.06%
Buckingham Strategic Partners2,209$200.6K0.00%
Point72 Asia (Singapore) Pte. Ltd.2,035$167.9K0.03%
State of Alaska, Department of Revenue1,968$162.0K0.00%
Abich Financial Wealth Management LLC1,905$157.2K0.06%
Point72 Europe (London) LLP561$46.3K0.00%
CoreCap Advisors, LLC516$42.6K0.00%
Advisory Services Network, LLC401$33.1K0.00%
JPL Wealth Management, LLC275$22.7K0.01%
Caitong International Asset Management Co., Ltd195$16.1K0.01%
Quadrant Capital Group LLC178$14.7K0.00%
Cedar Mountain Advisors, LLC100$8.25K0.00%
Ancora Advisors, LLC49$4.04K0.00%
Assetmark, Inc19$1.57K0.00%
Bessemer Group Inc16$1.00K0.00%
Kilter Group LLC7$5780.00%
Tortoise Investment Management, LLC2$1650.00%
Measured Wealth Private Client Group, LLC1$610.00%

Sold out (40)

Institutions that held Ambarella Inc at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of AMBA in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
AXA S.A.356,992$23.6M
Baillie Gifford & Co259,380$17.1M
Assenagon Asset Management S.A.257,899$17.0M
LMR Partners LLP150,000$9.91M
Tairen Capital Ltd146,000$9.65M
Neuberger Berman Group LLC120,677$7.97M
Stanley-Laman Group, Ltd.111,164$7.34M
Hel Ved Capital Management Ltd103,870$6.86M
Jain Global LLC101,616$6.71M
Healthcare of Ontario Pension Plan Trust Fund71,200$4.70M
Shellback Capital, LP43,745$2.89M
Susquehanna Fundamental Investments, LLC40,199$2.66M
PEAK6 LLC32,890$2.17M
Freemont Management S.A.31,600$2.09M
Katamaran Capital LLP20,595$1.36M
SG Americas Securities, LLC13,871$916.0K
Winton Group Ltd13,571$896.6K
Sender Co & Partners, Inc.10,829$715.4K
Walleye Trading LLC8,385$554.0K
Symmetry Peak Management LLC5,860$387.1K
Centiva Capital, LP5,125$338.6K
Mach-1 Financial Group, Inc.5,049$333.6K
Ardsley Advisory Partners LP5,000$330.3K
Freestone Grove Partners LP4,294$283.7K
Prelude Capital Management, LLC3,692$243.9K
Emerald Advisers, LLC3,558$235.1K
FNY Investment Advisers, LLC3,216$212.0K
Skandinaviska Enskilda Banken AB (publ)2,487$164.2K
Clear Street Markets LLC2,000$132.1K
Optiver Holding B.V.856$56.6K
Total Investment Management Inc450$29.7K
BNP PARIBAS ASSET MANAGEMENT Holding S.A.351$23.0K
Northwestern Mutual Wealth Management Co314$20.7K
Fifth Third Bancorp305$20.1K
Skopos Labs, Inc.196$12.9K
Whittier Trust Co40$2.64K
Public Employees Retirement System of Ohio31$2.05K
Riggs Asset Managment Co. Inc.5$331
Stephens Consulting, LLC1$67
Kozak & Associates, Inc.0$5

Not filed for Q3 2025 yet (2)

Institutions that held Ambarella Inc at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMBA in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
CIBC World Markets Corp5,020$331.6K
First Horizon Advisors, Inc.570$37.7K