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, Q3 2025
Institutional positions in Ambarella Inc as of Sep 30, 2025. 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
- 329
- +26 vs. Q2 2025
- Shares held
- 35.6M
- +432.6K (+1.2%) vs. Q2 2025
- Total value
- $2.93B
- +$613.6M (+26.4%) vs. Q2 2025
- New holders
- 66
- 113 more added
- Sold out
- 40
- 105 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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 | $2.62B |
| Q3 2025 | 329 | $2.93B |
| Q2 2025 | 305 | $2.32B |
| Q1 2025 | 298 | $1.77B |
| Q4 2024 | 299 | $2.46B |
| Q3 2024 | 265 | $1.86B |
| Q2 2024 | 262 | $1.83B |
| Q1 2024 | 269 | $1.69B |
| Q4 2023 | 258 | $2.02B |
| Q3 2023 | 254 | $1.64B |
| Q2 2023 | 258 | $2.58B |
| Q1 2023 | 273 | $2.35B |
| Q4 2022 | 265 | $2.58B |
| Q3 2022 | 244 | $1.70B |
| Q2 2022 | 267 | $1.92B |
| Q1 2022 | 293 | $3.01B |
| Q4 2021 | 328 | $5.72B |
| Q3 2021 | 281 | $4.44B |
| Q2 2021 | 260 | $2.92B |
| Q1 2021 | 266 | $2.78B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Ambarella Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| New York State Common Retirement Fund | 14,303 | $1.18M | 0.00% | 00.0% | Unchanged |
| Red Spruce Capital, LLC | 15,028 | $1.24M | 0.51% | −21−0.1% | Reduced |
| Ieq Capital, LLC | 15,038 | $1.24M | 0.00% | +2,898+23.9% | Added |
| Mackenzie Financial Corp | 15,169 | $1.25M | 0.00% | −7,001−31.6% | Reduced |
| Gamco Investors, Inc. Et Al | 15,199 | $1.25M | 0.01% | −977−6.0% | Reduced |
| Aquatic Capital Management LLC | 15,674 | $1.29M | 0.02% | +15,674 | New |
| Headlands Technologies LLC | 16,387 | $1.35M | 0.11% | +16,387 | New |
| LPL Financial LLC | 16,454 | $1.36M | 0.00% | −1,097−6.3% | Reduced |
| Graham Capital Management, L.P. | 16,476 | $1.36M | 0.05% | −35,534−68.3% | Reduced |
| Main Management ETF Advisors, LLC | 17,050 | $1.41M | 0.05% | +17,050 | New |
| Linden Thomas Advisory Services, LLC | 17,211 | $1.42M | 0.14% | +43+0.3% | Added |
| Stifel Financial Corp | 17,391 | $1.44M | 0.00% | −1,106−6.0% | Reduced |
| HSBC Holdings PLC | 17,596 | $1.45M | 0.00% | −11,701−39.9% | Reduced |
| Janus Henderson Group PLC | 17,898 | $1.48M | 0.00% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 18,260 | $1.51M | 0.01% | −29−0.2% | Reduced |
| Two Sigma Investments, LP | 18,568 | $1.53M | 0.00% | −12,188−39.6% | Reduced |
| Intech Investment Management LLC | 18,871 | $1.56M | 0.01% | −3,672−16.3% | Reduced |
| McDonald Partners LLC | 19,096 | $1.58M | 0.47% | −150−0.8% | Reduced |
| Fox Run Management, L.L.C. | 19,230 | $1.59M | 0.25% | +10,994+133.5% | Added |
| Collar Capital Management, LLC | 20,701 | $1.71M | 1.20% | −100−0.5% | Reduced |
| Primecap Management Co | 20,900 | $1.72M | 0.00% | −1,000−4.6% | Reduced |
| Virtus ETF Advisers LLC | 20,930 | $1.73M | 0.95% | −2,760−11.7% | Reduced |
| Caption Management, LLC | 21,171 | $1.75M | 0.10% | +21,171 | New |
| KBC Group NV | 21,795 | $1.80M | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 22,934 | $1.89M | 0.00% | −25,722−52.9% | Reduced |
| Boothbay Fund Management, LLC | 23,046 | $1.90M | 0.05% | +23,046 | New |
| First National Bank of Omaha | 23,545 | $1.94M | 0.12% | −6,556−21.8% | Reduced |
| MetLife Investment Management | 23,698 | $1.96M | 0.01% | −611−2.5% | Reduced |
| Voloridge Investment Management, LLC | 24,038 | $1.98M | 0.01% | −154,022−86.5% | Reduced |
| Point72 Hong Kong Ltd | 24,212 | $2.00M | 0.09% | +24,212 | New |
| Schonfeld Strategic Advisors LLC | 24,347 | $2.01M | 0.01% | +2,874+13.4% | Added |
| Harber Asset Management LLC | 24,594 | $2.03M | 0.73% | −17,188−41.1% | Reduced |
| Prudential Financial Inc | 26,460 | $2.18M | 0.00% | +26,460 | New |
| Creative Planning | 26,554 | $2.19M | 0.00% | +4,985+23.1% | Added |
| Occudo Quantitative Strategies LP | 26,650 | $2.20M | 0.27% | +12,708+91.1% | Added |
| IMC-Chicago, LLC | 27,228 | $2.25M | 0.04% | +27,228 | New |
| State of New Jersey Common Pension Fund D | 32,218 | $2.66M | 0.01% | +2,388+8.0% | Added |
| Wolverine Trading, LLC | 32,985 | $2.73M | 0.06% | −10,306−23.8% | Reduced |
| Price T Rowe Associates Inc | 35,837 | $2.96M | 0.00% | +2,718+8.2% | Added |
| Van Eck Associates Corp | 36,303 | $3.00M | 0.00% | +19,041+110.3% | Added |
| California State Teachers Retirement System | 36,346 | $3.00M | 0.00% | +20.0% | Added |
| Granite Investment Partners, LLC | 39,485 | $3.26M | 0.19% | −5,029−11.3% | Reduced |
| Jane Street Group, LLC | 41,984 | $3.46M | 0.00% | +30,813+275.8% | Added |
| SEI Investments Co | 42,405 | $3.50M | 0.00% | −3,364−7.3% | Reduced |
| Westerly Capital Management, LLC | 45,000 | $3.71M | 1.18% | −98,000−68.5% | Reduced |
| Franklin Resources Inc | 45,706 | $3.77M | 0.00% | +3,200+7.5% | Added |
| Edgestream Partners, L.P. | 46,557 | $3.84M | 0.11% | +30,009+181.3% | Added |
| Alliancebernstein L.P. | 47,767 | $3.94M | 0.00% | −70,697−59.7% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 48,867 | $4.03M | 0.06% | 00.0% | Unchanged |
| AIGH Capital Management LLC | 50,000 | $4.13M | 1.44% | +50,000 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 58,428 | $4.82M | 0.01% | +43,461+290.4% | Added |
| Man Group plc | 58,983 | $4.87M | 0.01% | −40,772−40.9% | Reduced |
| Rhumbline Advisers | 59,563 | $4.92M | 0.00% | −2,550−4.1% | Reduced |
| Envestnet Asset Management Inc | 61,871 | $5.11M | 0.00% | −303−0.5% | Reduced |
| Jump Financial, LLC | 63,053 | $5.20M | 0.07% | +63,053 | New |
| Wells Fargo & Company | 63,157 | $5.21M | 0.00% | +8,507+15.6% | Added |
| ArrowMark Colorado Holdings LLC | 65,000 | $5.36M | 0.10% | 00.0% | Unchanged |
| G2 Investment Partners Management LLC | 66,000 | $5.45M | 1.12% | +66,000 | New |
| Atom Investors LP | 68,487 | $5.65M | 0.43% | +44,954+191.0% | Added |
| Readystate Asset Management LP | 72,945 | $6.02M | 0.29% | +72,945 | New |
| Russell Investments Group, Ltd. | 73,880 | $6.10M | 0.01% | −28,039−27.5% | Reduced |
| SWS Partners | 76,417 | $6.31M | 1.54% | +1,261+1.7% | Added |
| Swiss National Bank | 78,133 | $6.45M | 0.00% | +1,100+1.4% | Added |
| HRT Financial LP | 78,262 | $6.46M | 0.02% | +78,262 | New |
| UBS Asset Management Americas Inc | 78,727 | $6.50M | 0.00% | −153,907−66.2% | Reduced |
| Lord, Abbett & Co. LLC | 79,751 | $6.58M | 0.02% | +10,662+15.4% | Added |
| Deutsche Bank AG | 80,404 | $6.63M | 0.00% | −98,739−55.1% | Reduced |
| Ameriprise Financial Inc | 84,725 | $6.99M | 0.00% | −9,234−9.8% | Reduced |
| Essex Investment Management Co LLC | 85,352 | $7.04M | 1.08% | +873+1.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 94,088 | $7.76M | 0.01% | −2,072−2.2% | Reduced |
| Hillsdale Investment Management Inc. | 100,080 | $8.26M | 0.25% | +3,190+3.3% | Added |
| Capital Fund Management S.A. | 100,550 | $8.30M | 0.08% | +3,847+4.0% | Added |
| Potrero Capital Research LLC | 105,373 | $8.70M | 2.64% | −44,627−29.8% | Reduced |
| Bank of New York Mellon Corp | 109,649 | $9.05M | 0.00% | −24,898−18.5% | Reduced |
| Raymond James Financial Inc | 116,683 | $9.63M | 0.00% | +91,836+369.6% | Added |
| Millennium Management LLC | 118,822 | $9.81M | 0.01% | +54,778+85.5% | Added |
| Point72 Asset Management, L.P. | 121,611 | $10.0M | 0.02% | +121,611 | New |
| First Trust Advisors LP | 122,214 | $10.1M | 0.01% | −52,705−30.1% | Reduced |
| Engineers Gate Manager LP | 133,200 | $11.0M | 0.13% | +31,664+31.2% | Added |
| Acadian Asset Management LLC | 149,960 | $12.4M | 0.02% | −75,827−33.6% | Reduced |
| Sora Investors LLC | 152,367 | $12.6M | 1.16% | +76,459+100.7% | Added |
| S Squared Technology, LLC | 153,551 | $12.7M | 4.82% | +35,000+29.5% | Added |
| Susquehanna International Group, LLP | 158,846 | $13.1M | 0.02% | −1,013−0.6% | Reduced |
| Handelsbanken Fonder AB | 169,775 | $14.0M | 0.04% | +143,136+537.3% | Added |
| Royal Bank of Canada | 200,696 | $16.6M | 0.00% | +128,935+179.7% | Added |
| Tributary Capital Management, LLC | 211,895 | $17.5M | 1.58% | −12,961−5.8% | Reduced |
| Marshall Wace, LLP | 220,869 | $18.2M | 0.02% | +132,545+150.1% | Added |
| BNP Paribas Arbitrage, SA | 227,205 | $18.7M | 0.01% | +206,121+977.6% | Added |
| AQR Capital Management LLC | 230,385 | $19.0M | 0.01% | +5,388+2.4% | Added |
| SG Capital Management LLC | 232,713 | $19.2M | 1.92% | +43,492+23.0% | Added |
| Algert Global LLC | 237,890 | $19.6M | 0.33% | +16,527+7.5% | Added |
| FMR LLC | 241,865 | $20.0M | 0.00% | +21,120+9.6% | Added |
| Renaissance Technologies LLC | 242,600 | $20.0M | 0.03% | −108,249−30.9% | Reduced |
| JPMorgan Chase & Co | 242,630 | $20.0M | 0.00% | +120,523+98.7% | Added |
| Trexquant Investment LP | 244,325 | $20.2M | 0.21% | +83,966+52.4% | Added |
| Robeco Schweiz AG | 247,545 | $20.4M | 0.46% | −5,575−2.2% | Reduced |
| Exchange Traded Concepts, LLC | 271,433 | $22.4M | 0.21% | −99,308−26.8% | Reduced |
| Qube Research & Technologies Ltd | 291,425 | $24.0M | 0.03% | +51,819+21.6% | Added |
| Arrowstreet Capital, Limited Partnership | 316,381 | $26.1M | 0.02% | +203,722+180.8% | Added |
| Balyasny Asset Management LLC | 330,802 | $27.3M | 0.06% | −128,760−28.0% | Reduced |