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.
13F holders, Q4 2024
Institutional positions in Ambarella Inc as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 299
- +39 vs. Q3 2024
- Shares held
- 33.7M
- +945.7K (+2.9%) vs. Q3 2024
- Total value
- $2.46B
- +$603.2M (+32.6%) vs. Q3 2024
- New holders
- 72
- 88 more added
- Sold out
- 33
- 100 more reduced
5 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMBA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 341 | $3.13B |
| Q1 2026 | 307 | $1.88B |
| Q4 2025 | 324 | $2.69B |
| Q3 2025 | 329 | $2.95B |
| Q2 2025 | 305 | $2.33B |
| Q1 2025 | 298 | $1.78B |
| Q4 2024 | 299 | $2.46B |
| Q3 2024 | 265 | $1.87B |
| Q2 2024 | 262 | $1.86B |
| Q1 2024 | 269 | $1.84B |
| Q4 2023 | 258 | $2.15B |
| Q3 2023 | 254 | $1.64B |
| Q2 2023 | 258 | $2.58B |
| Q1 2023 | 272 | $2.35B |
| Q4 2022 | 265 | $2.58B |
| Q3 2022 | 244 | $1.78B |
| Q2 2022 | 267 | $1.96B |
| Q1 2022 | 293 | $3.09B |
| Q4 2021 | 328 | $5.73B |
| Q3 2021 | 281 | $4.44B |
| Q2 2021 | 259 | $2.99B |
| Q1 2021 | 266 | $2.80B |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Ambarella Inc; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 4,696,124 | $341.6M | 0.01% | +81,557+1.8% | Added |
| BlackRock, Inc. | 3,824,645 | $278.2M | 0.01% | +195,345+5.4% | Added |
| State Street Corp | 1,586,674 | $115.4M | 0.00% | −337,561−17.5% | Reduced |
| Manufacturers Life Insurance Company, The | 1,452,128 | $105.6M | 0.09% | +98,841+7.3% | Added |
| Millennium Management LLC | 1,394,192 | $101.4M | 0.09% | +144,268+11.5% | Added |
| Geode Capital Management, LLC | 914,534 | $66.5M | 0.01% | −2,223−0.2% | Reduced |
| Citadel Advisors LLC | 848,979 | $61.8M | 0.06% | −33,031−3.7% | Reduced |
| Morgan Stanley | 842,813 | $61.3M | 0.00% | +54,569+6.9% | Added |
| William Blair Investment Management, LLC | 829,052 | $60.3M | 0.15% | +68,044+8.9% | Added |
| Point72 Asset Management, L.P. | 802,280 | $58.4M | 0.16% | −59,804−6.9% | Reduced |
| Kodai Capital Management LP | 778,553 | $56.6M | 2.32% | −59,268−7.1% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 725,467 | $52.8M | 0.20% | +725,467 | New |
| Goldman Sachs Group Inc | 723,281 | $52.6M | 0.01% | +74,044+11.4% | Added |
| UBS Asset Management Americas Inc | 652,355 | $47.5M | 0.01% | −13,931−2.1% | Reduced |
| Balyasny Asset Management LLC | 630,507 | $45.9M | 0.11% | +504,750+401.4% | Added |
| Dimensional Fund Advisors LP | 623,119 | $45.3M | 0.01% | −28,212−4.3% | Reduced |
| Nuveen Asset Management, LLC | 603,541 | $43.9M | 0.01% | −16,638−2.7% | Reduced |
| Pinnacle Associates Ltd | 514,838 | $37.4M | 0.51% | +139,651+37.2% | Added |
| Stephens Investment Management Group LLC | 503,468 | $36.6M | 0.49% | +2,432+0.5% | Added |
| Legal & General Group Plc | 452,693 | $32.9M | 0.01% | −80,713−15.1% | Reduced |
| Bank of America Corp | 386,623 | $28.1M | 0.00% | −66,864−14.7% | Reduced |
| Northern Trust Corp | 383,036 | $27.9M | 0.00% | +47,751+14.2% | Added |
| AXA S.A. | 371,764 | $27.0M | 0.08% | −8,680−2.3% | Reduced |
| UBS Group AG | 355,223 | $25.8M | 0.01% | +86,878+32.4% | Added |
| Sora Investors LLC | 353,372 | $25.7M | 2.85% | +168,372+91.0% | Added |
| Invesco Ltd. | 335,730 | $24.4M | 0.00% | +295,606+736.7% | Added |
| Baillie Gifford & Co | 329,200 | $23.9M | 0.02% | +749+0.2% | Added |
| Charles Schwab Investment Management Inc | 325,001 | $23.6M | 0.00% | +4,682+1.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 305,395 | $22.2M | 0.10% | +78,893+34.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 292,066 | $21.2M | 0.04% | −3,170−1.1% | Reduced |
| Tributary Capital Management, LLC | 287,565 | $20.9M | 1.62% | +38,380+15.4% | Added |
| Exchange Traded Concepts, LLC | 283,961 | $20.7M | 0.42% | −85,192−23.1% | Reduced |
| Robeco Schweiz AG | 274,920 | $20.0M | 0.43% | −8,880−3.1% | Reduced |
| Woodline Partners LP | 263,333 | $19.2M | 0.13% | +252,659+2,367.1% | Added |
| Assenagon Asset Management S.A. | 258,122 | $18.8M | 0.03% | −144,385−35.9% | Reduced |
| Barclays PLC | 217,900 | $15.9M | 0.01% | −170,190−43.9% | Reduced |
| Algert Global LLC | 208,431 | $15.2M | 0.36% | +113,432+119.4% | Added |
| Marshall Wace, LLP | 202,426 | $14.7M | 0.02% | −353,588−63.6% | Reduced |
| Alliancebernstein L.P. | 189,235 | $13.8M | 0.00% | +146,729+345.2% | Added |
| Oberweis Asset Management Inc | 182,800 | $13.3M | 0.63% | +20,800+12.8% | Added |
| JPMorgan Chase & Co | 173,609 | $12.6M | 0.00% | +73,508+73.4% | Added |
| Bank of New York Mellon Corp | 150,897 | $11.0M | 0.00% | −6,416−4.1% | Reduced |
| Lord, Abbett & Co. LLC | 133,060 | $9.68M | 0.03% | +63,836+92.2% | Added |
| First Trust Advisors LP | 128,458 | $9.34M | 0.01% | −6,488−4.8% | Reduced |
| S Squared Technology, LLC | 125,551 | $9.13M | 3.79% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 121,561 | $8.84M | 0.03% | +53,409+78.4% | Added |
| Raymond James Financial Inc | 114,747 | $8.35M | 0.00% | +114,747 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 106,611 | $8.27M | 0.01% | −15,136−12.4% | Reduced |
| SG Capital Management LLC | 102,372 | $7.45M | 0.82% | −3,957−3.7% | Reduced |
| FMR LLC | 91,728 | $6.67M | 0.00% | +74,626+436.4% | Added |
| Essex Investment Management Co LLC | 90,522 | $6.58M | 1.18% | +5,098+6.0% | Added |
| ArrowMark Colorado Holdings LLC | 85,000 | $6.18M | 0.08% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 81,660 | $5.94M | 0.01% | −66,075−44.7% | Reduced |
| Swiss National Bank | 77,033 | $5.60M | 0.00% | +1,000+1.3% | Added |
| Deutsche Bank AG | 75,529 | $5.49M | 0.00% | +29,123+62.8% | Added |
| Hillsdale Investment Management Inc. | 69,390 | $5.05M | 0.26% | +900+1.3% | Added |
| SWS Partners | 67,408 | $4.90M | 1.48% | +247+0.4% | Added |
| Royal Bank of Canada | 63,437 | $4.62M | 0.00% | +8,345+15.1% | Added |
| Citigroup Inc | 58,505 | $4.26M | 0.00% | +4,769+8.9% | Added |
| Capital Fund Management S.A. | 56,440 | $4.11M | 0.04% | −13,188−18.9% | Reduced |
| Rhumbline Advisers | 56,322 | $4.10M | 0.00% | −285−0.5% | Reduced |
| Qube Research & Technologies Ltd | 56,007 | $4.07M | 0.01% | +7,416+15.3% | Added |
| Wells Fargo & Company | 53,397 | $3.88M | 0.00% | +7,312+15.9% | Added |
| Envestnet Asset Management Inc | 52,319 | $3.81M | 0.00% | +923+1.8% | Added |
| Granite Investment Partners, LLC | 51,777 | $3.77M | 0.16% | −4,063−7.3% | Reduced |
| D. E. Shaw & Co., Inc. | 51,193 | $3.72M | 0.00% | −179,988−77.9% | Reduced |
| Neuberger Berman Group LLC | 50,744 | $3.69M | 0.00% | +15,709+44.8% | Added |
| Susquehanna Fundamental Investments, LLC | 49,849 | $3.63M | 0.06% | +49,849 | New |
| Cubist Systematic Strategies, LLC | 48,680 | $3.54M | 0.06% | −127,879−72.4% | Reduced |
| Verition Fund Management LLC | 47,913 | $3.49M | 0.02% | +25,019+109.3% | Added |
| Franklin Resources Inc | 45,363 | $3.30M | 0.00% | +1,279+2.9% | Added |
| Canada Pension Plan Investment Board | 44,676 | $3.25M | 0.00% | −25,624−36.4% | Reduced |
| Two Sigma Advisers, LP | 43,500 | $3.16M | 0.01% | −117,800−73.0% | Reduced |
| Renaissance Technologies LLC | 43,000 | $3.13M | 0.00% | +43,000 | New |
| Jane Street Group, LLC | 41,958 | $3.05M | 0.00% | −19,068−31.2% | Reduced |
| Jain Global LLC | 40,935 | $2.98M | 0.09% | +40,935 | New |
| Aquatic Capital Management LLC | 38,915 | $2.83M | 0.08% | +16,415+73.0% | Added |
| AQR Capital Management LLC | 37,457 | $2.72M | 0.00% | +18,382+96.4% | Added |
| Jacobs Levy Equity Management, Inc | 37,328 | $2.72M | 0.01% | −6,092−14.0% | Reduced |
| California State Teachers Retirement System | 36,566 | $2.66M | 0.00% | −189−0.5% | Reduced |
| State of New Jersey Common Pension Fund D | 35,561 | $2.59M | 0.01% | −3,219−8.3% | Reduced |
| First National Bank of Omaha | 33,473 | $2.43M | 0.16% | −3,708−10.0% | Reduced |
| HSBC Holdings PLC | 33,553 | $2.43M | 0.00% | −23−0.1% | Reduced |
| Castleark Management LLC | 31,960 | $2.32M | 0.08% | +31,960 | New |
| Stifel Financial Corp | 31,793 | $2.31M | 0.00% | +15,397+93.9% | Added |
| BNP Paribas Arbitrage, SA | 31,006 | $2.26M | 0.00% | −10,304−24.9% | Reduced |
| Jump Financial, LLC | 30,900 | $2.25M | 0.05% | −46,200−59.9% | Reduced |
| Graham Capital Management, L.P. | 30,833 | $2.24M | 0.07% | +8,820+40.1% | Added |
| Trexquant Investment LP | 30,779 | $2.24M | 0.03% | −78,641−71.9% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 30,000 | $2.18M | 0.00% | −36,800−55.1% | Reduced |
| Janus Henderson Group PLC | 29,191 | $2.12M | 0.00% | 00.0% | Unchanged |
| Primecap Management Co | 25,800 | $1.88M | 0.00% | −3,600−12.2% | Reduced |
| Price T Rowe Associates Inc | 25,381 | $1.85M | 0.00% | +3,406+15.5% | Added |
| Engineers Gate Manager LP | 24,814 | $1.80M | 0.03% | −74,781−75.1% | Reduced |
| Nebula Research & Development LLC | 24,224 | $1.76M | 0.21% | −6,311−20.7% | Reduced |
| D.A. Davidson & Co. | 22,980 | $1.67M | 0.01% | +22,980 | New |
| MetLife Investment Management | 22,892 | $1.67M | 0.01% | +1,065+4.9% | Added |
| Russell Investments Group, Ltd. | 22,599 | $1.64M | 0.00% | −2,115−8.6% | Reduced |
| HRT Financial LP | 21,948 | $1.60M | 0.01% | −20,329−48.1% | Reduced |
| KBC Group NV | 21,835 | $1.59M | 0.00% | −20,000−47.8% | Reduced |