AMBARELLA INC (AMBA)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
327
Reporting holders
$3.2B
Reported value
76.5%
Of shares outstanding
7.7%
Held as options
+41
Holder change
Institutions report 33,560,345 shares against 43,868,185 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $338.4M | 3,944,592 | 0.01% | 8q | +4.1%+$13.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $316.5M | 3,688,405 | 0.01% | 2q | -0.8%-$2.4M |
| STATE STREET CORP | $219.9M | 2,562,733 | 0.01% | 31q | +29.7%+$50.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | $160.7M | 1,873,539 | 0.00% | 2q | +3.2%+$5.1M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $158.2M | 1,186,541 | 0.12% | 31q | -25.2%-$53.3M |
| EXCHANGE TRADED CONCEPTS, LLC | $108.2M | 1,261,394 | 0.25% | 23q | +120.7%+$59.2M |
| Legal & General Group Plc | $95.8M | 1,116,729 | 0.02% | 31q | +20.5%+$16.3M |
| GEODE CAPITAL MANAGEMENT, LLC | $94.2M | 1,098,120 | 0.01% | 31q | +6.7%+$5.9M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $81.0M | 81,602 | 0.01% | 31q | -46.9%-$71.6M |
| MENORA MIVTACHIM HOLDINGS LTD. | $65.0M | 757,571 | 0.25% | new | NEW |
| Stephens Investment Management Group LLC | $61.9M | 721,711 | 0.66% | 19q | +51.9%+$21.2M |
| DIMENSIONAL FUND ADVISORS LP | $61.6M | 718,154 | 0.01% | 31q | +12.5%+$6.8M |
| Connor, Clark & Lunn Investment Management Ltd. | $58.8M | 685,726 | 0.11% | 15q | +14.2%+$7.3M |
| MORGAN STANLEY | $52.5M | 611,551 | 0.00% | 35q | -15.6%-$9.7M |
| JANE STREET GROUP, LLC | $47.5M | options only | 0.00% | 31q | OPTIONS |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $47.1M | 562,013 | 0.06% | 9q | +3.7%+$1.7M |
| D. E. Shaw & Co., Inc. | $46.8M | 515,084 | 0.02% | 31q | +110.1%+$24.5M |
| IMC-Chicago, LLC | $44.4M | 60,277 | 0.01% | 19q | +135.4%+$25.5M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $43.3M | 504,409 | 0.16% | 30q | +38.4%+$12.0M |
| AQR CAPITAL MANAGEMENT LLC | $42.5M | 495,583 | 0.01% | 9q | HELD |
| Nuveen, LLC | $37.7M | 439,002 | 0.01% | 6q | -10.0%-$4.2M |
| PINNACLE ASSOCIATES LTD | $35.1M | 408,846 | 0.38% | 31q | -5.0%-$1.8M |
| NORTHERN TRUST CORP | $34.6M | 403,692 | 0.00% | 31q | +7.7%+$2.5M |
| CITADEL ADVISORS LLC | $34.4M | options only | 0.00% | 31q | OPTIONS |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $33.8M | 394,182 | 0.03% | 3q | +2.4%+$805.3K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $32.6M | 379,551 | 0.00% | 31q | +4.5%+$1.4M |
| Sixth Street Partners Management Company, L.P. | $32.6M | 379,551 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $32.6M | 379,423 | 0.00% | 31q | +80.8%+$14.6M |
| BANK OF AMERICA CORP /DE/ | $31.1M | 361,932 | 0.00% | 31q | -24.9%-$10.3M |
| Squarepoint Ops LLC | $30.8M | 358,889 | 0.03% | 5q | -22.1%-$8.7M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $30.7M | 358,122 | 0.05% | new | NEW |
| OBERWEIS ASSET MANAGEMENT INC/ | $29.4M | 342,254 | 0.61% | 8q | +15.9%+$4.0M |
| FMR LLC | $27.1M | 316,013 | 0.00% | 31q | +4.5%+$1.2M |
| VANGUARD FIDUCIARY TRUST CO | $25.6M | 298,076 | 0.01% | 2q | +4.8%+$1.2M |
| ALGERT GLOBAL LLC | $25.5M | 297,624 | 0.30% | 13q | -63.6%-$44.7M |
| RAYMOND JAMES FINANCIAL INC | $16.1M | 187,266 | 0.00% | 7q | +0.5%+$83.3K |
| Robinhood Asset Management, LLC | $13.7M | 159,123 | 0.73% | new | NEW |
| PANAGORA ASSET MANAGEMENT INC | $12.9M | 150,261 | 0.04% | 2q | +72.4%+$5.4M |
| DEUTSCHE BANK AG\ | $12.9M | 150,163 | 0.00% | 34q | +57.3%+$4.7M |
| GROUP ONE TRADING LLC | $12.8M | options only | 0.02% | 31q | OPTIONS |
| UBS Group AG | $12.3M | 143,071 | 0.00% | 31q | -54.4%-$14.7M |
| Samjo Management, LLC | $11.8M | 136,955 | 4.01% | 2q | +229.0%+$8.2M |
| WELLS FARGO & COMPANY/MN | $11.7M | 68,229 | 0.00% | 31q | -29.6%-$4.9M |
| NEEDHAM INVESTMENT MANAGEMENT LLC | $11.6M | 135,000 | 0.35% | 2q | +575.0%+$9.9M |
| SWS Partners | $11.3M | 132,050 | 2.45% | 28q | +44.4%+$3.5M |
| MAIRS & POWER INC | $10.8M | 126,353 | 0.10% | 2q | +7.5%+$752.6K |
| Point72 Asset Management, L.P. | $10.6M | 117,943 | 0.01% | 4q | -77.4%-$36.3M |
| Bank of New York Mellon Corp | $10.5M | 122,202 | 0.00% | 31q | +8.9%+$858.9K |
| Mitsubishi UFJ Asset Management Co., Ltd. | $10.5M | 121,951 | 0.01% | 31q | +48.9%+$3.4M |
| FIRST TRUST ADVISORS LP | $10.1M | 118,029 | 0.01% | 31q | -11.2%-$1.3M |
| Quadrature Capital Ltd | $10.1M | 117,737 | 0.09% | new | NEW |
| Hillsdale Investment Management Inc. | $10.0M | 116,280 | 0.23% | 8q | +8.7%+$796.2K |
| PEAK6 LLC | $9.8M | 20,007 | 0.02% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $9.5M | 110,300 | 0.01% | 2q | -44.7%-$7.6M |
| Robeco Schweiz AG | $9.1M | 106,242 | 0.15% | 18q | +2.0%+$179.2K |
| SORA INVESTORS LLC | $8.7M | 100,935 | 0.66% | 9q | +70.8%+$3.6M |
| Portolan Capital Management, LLC | $8.3M | 97,072 | 0.31% | 3q | -10.7%-$1.0M |
| EMERALD ADVISERS, LLC | $8.3M | 96,501 | 0.19% | new | NEW |
| Walleye Trading LLC | $8.1M | 8,912 | 0.01% | 31q | +27.6%+$1.7M |
| ArrowMark Colorado Holdings LLC | $7.6M | 89,000 | 0.32% | 31q | HELD |
| JPMORGAN CHASE & CO | $7.6M | 111,267 | 0.00% | 31q | -76.5%-$24.7M |
| Apis Capital Advisors, LLC | $7.6M | 88,000 | 0.73% | new | NEW |
| Potrero Capital Research LLC | $7.4M | 86,595 | 4.13% | new | NEW |
| Swiss National Bank | $7.2M | 83,433 | 0.00% | 31q | +3.2%+$223.1K |
| WESTERLY CAPITAL MANAGEMENT, LLC | $6.9M | 80,000 | 1.27% | 5q | -38.5%-$4.3M |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $6.9M | 79,997 | 0.90% | 9q | -2.9%-$205.1K |
| Invesco Ltd. | $6.8M | 79,161 | 0.00% | 31q | -9.8%-$741.6K |
| Russell Investments Group, Ltd. | $6.8M | 78,892 | 0.01% | 31q | -10.7%-$808.9K |
| SIMPLEX TRADING, LLC | $5.8M | 3,130 | 0.00% | 31q | -3.5%-$210.1K |
| EMERALD MUTUAL FUND ADVISERS TRUST | $5.6M | 65,731 | 0.20% | new | NEW |
| FRANKLIN RESOURCES INC | $5.5M | 63,751 | 0.00% | 13q | -17.6%-$1.2M |
| SEI INVESTMENTS CO | $5.4M | 62,855 | 0.00% | 10q | -29.5%-$2.3M |
| Qube Research & Technologies Ltd | $5.2M | 61,095 | 0.00% | 8q | +347.3%+$4.1M |
| CITIGROUP INC | $4.9M | 57,317 | 0.00% | 31q | +89.0%+$2.3M |
| RHUMBLINE ADVISERS | $4.6M | 53,925 | 0.00% | 31q | -4.8%-$234.1K |
| LPL Financial LLC | $4.6M | 53,306 | 0.00% | 24q | +661.7%+$4.0M |
| Holocene Advisors, LP | $4.5M | 51,883 | 0.01% | 2q | +46.3%+$1.4M |
| VAN ECK ASSOCIATES CORP | $3.9M | 45,316 | 0.00% | 13q | +58.0%+$1.4M |
| Y-Intercept (Hong Kong) Ltd | $3.7M | 42,746 | 0.07% | 9q | -0.7%-$27.6K |
| STIFEL FINANCIAL CORP | $3.6M | 42,491 | 0.00% | 31q | +55.9%+$1.3M |
| ZACKS INVESTMENT MANAGEMENT | $3.6M | 41,882 | 0.03% | new | NEW |
| VANGUARD ASSET MANAGEMENT, Ltd | $3.6M | 41,873 | 0.00% | 2q | +16.0%+$495.3K |
| MILLENNIUM MANAGEMENT LLC | $3.5M | 41,318 | 0.00% | 16q | -97.3%-$126.2M |
| AMERIPRISE FINANCIAL INC | $3.4M | 39,890 | 0.00% | 29q | -50.9%-$3.5M |
| Granite Investment Partners, LLC | $3.3M | 38,303 | 0.17% | 31q | -13.4%-$509.4K |
| Creative Planning | $3.2M | 37,012 | 0.00% | 9q | +7.2%+$213.5K |
| Arosa Capital Management LP | $3.0M | 35,000 | 0.54% | new | NEW |
| Katamaran Capital LLP | $2.8M | 33,024 | 2.26% | new | NEW |
| WINTON GROUP Ltd | $2.8M | 32,100 | 0.09% | 2q | +517.3%+$2.3M |
| Allianz Asset Management GmbH | $2.7M | 30,900 | 0.00% | 2q | -66.6%-$5.3M |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $2.6M | 30,588 | 0.01% | 7q | +46.8%+$836.2K |
| Artemis Wealth Advisors, LLC | $2.6M | 41,000 | 0.16% | new | NEW |
| Man Group plc | $2.5M | 29,542 | 0.00% | 31q | +1.9%+$47.9K |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $2.5M | 29,133 | 0.05% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $2.5M | 48,344 | 0.00% | 31q | +9.2%+$210.3K |
| Parallax Volatility Advisers, L.P. | $2.5M | options only | 0.00% | new | OPTIONS |
| WHITE PINE CAPITAL LLC | $2.5M | 28,652 | 0.58% | 34q | +14.5%+$311.6K |
| DNB Asset Management AS | $2.4M | 28,057 | 0.01% | 3q | -51.4%-$2.5M |
| MERCER GLOBAL ADVISORS INC /ADV | $2.3M | 26,436 | 0.00% | 5q | +157.2%+$1.4M |
| Linden Thomas Advisory Services, LLC | $2.3M | 26,242 | 0.18% | 13q | +53.7%+$786.7K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G | T. Rowe Price Associates, Inc. | 5.9% |
| 2026-08-07 | 13G | STATE STREET CORPORATION | 5.8% |
| 2026-07-31 | 13G | Vanguard Capital Management | 5.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 327 | $3.2B | 33,560,345 | 87 | 111 | 81 | 7.7% |
| Q1 2026 | 286 | $1.8B | 35,074,824 | 50 | 110 | 72 | 3.0% |
| Q4 2025 | 300 | $2.8B | 36,189,386 | 40 | 94 | 104 | 8.3% |
| Q3 2025 | 309 | $3.2B | 35,432,642 | 56 | 99 | 92 | 10.1% |
| Q2 2025 | 287 | $2.4B | 34,933,079 | 60 | 94 | 96 | 5.4% |
| Q1 2025 | 273 | $1.8B | 34,987,940 | 49 | 99 | 84 | 3.3% |
| Q4 2024 | 274 | $2.6B | 33,499,341 | 54 | 73 | 88 | 6.2% |
| Q3 2024 | 245 | $2.0B | 32,785,737 | 32 | 86 | 82 | 5.7% |
| Q2 2024 | 239 | $1.9B | 34,055,419 | 32 | 84 | 82 | 5.9% |
| Q1 2024 | 246 | $1.9B | 35,769,841 | 39 | 99 | 62 | 3.9% |
| Q4 2023 | 237 | $2.2B | 34,833,322 | 35 | 84 | 70 | 5.1% |
| Q3 2023 | 228 | $1.7B | 30,634,491 | 29 | 81 | 74 | 6.7% |
| Q2 2023 | 233 | $2.7B | 30,478,437 | 29 | 91 | 62 | 5.6% |
| Q1 2023 | 234 | $2.3B | 27,953,857 | 30 | 73 | 75 | 4.9% |
| Q4 2022 | 223 | $2.5B | 27,708,619 | 49 | 65 | 65 | 10.3% |
| Q3 2022 | 242 | $1.9B | 31,653,673 | 21 | 87 | 77 | 6.4% |
| Q2 2022 | 269 | $2.1B | 29,966,507 | 30 | 91 | 91 | 7.5% |
| Q1 2022 | 295 | $3.3B | 29,470,553 | 40 | 117 | 99 | 6.4% |
| Q4 2021 | 328 | $6.4B | 28,259,607 | 74 | 91 | 122 | 9.9% |
| Q3 2021 | 280 | $4.8B | 28,489,668 | 51 | 71 | 116 | 7.4% |
| Q2 2021 | 260 | $3.1B | 28,013,475 | 34 | 83 | 84 | 3.9% |
| Q1 2021 | 270 | $2.9B | 27,879,596 | 55 | 71 | 92 | 3.0% |
| Q4 2020 | 260 | $3.3B | 27,226,483 | 58 | 66 | 90 | 22.9% |
| Q3 2020 | 220 | $1.6B | 25,887,752 | 31 | 67 | 73 | 13.0% |
| Q2 2020 | 216 | $1.3B | 26,097,003 | 35 | 85 | 60 | 11.2% |
| Q1 2020 | 216 | $1.6B | 26,807,769 | 35 | 67 | 76 | 18.6% |
| Q4 2019 | 226 | $1.8B | 27,165,896 | 24 | 81 | 73 | 10.7% |
| Q3 2019 | 230 | $1.9B | 26,357,943 | 51 | 66 | 76 | 10.8% |
| Q2 2019 | 200 | $1.3B | 26,006,714 | 28 | 71 | 55 | 14.4% |
| Q1 2019 | 207 | $1.2B | 24,712,897 | 34 | 60 | 64 | 7.4% |
| Q4 2018 | 197 | $983.6M | 24,063,048 | 2 | 4 | 5 | 14.4% |