Security record · archived quarter
AMBA
Ambarella, Inc. · Technology · Semiconductors
106Tracked holders
+4Δ holders
25.12MShares held
$1.29BReported value
+11New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +3.9% ·
share flow +6.9% ·
net new positions +3.8%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 104 | +2 | 24.16M | $2.12B | +10 | −9 |
| Q1 2026 | 106 | +4 | 25.12M | $1.29B | +11 | −7 |
| Q4 2025 | 102 | -1 | 27.16M | $1.92B | +1 | −2 |
| Q3 2025 | 20 | +1 | 15.75M | $1.30B | +2 | −1 |
| Q2 2025 | 16 | -2 | 14.28M | $943.54M | — | −2 |
| Q1 2025 | 15 | 0 | 5.22M | $262.59M | +1 | −1 |
| Q4 2024 | 15 | +1 | 6.38M | $463.79M | +2 | −1 |
| Q3 2024 | 13 | 0 | 5.27M | $297.37M | — | — |
| Q2 2024 | 13 | — | 5.52M | $297.87M | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.79M | -1.0% | $195.05M | 0.0% | ▼ Trim | 4 | SEC ↗ ×17 |
| 2 | State Street Global Advisors ✦ (passive) | 1.98M | +16.1% | $101.74M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 3 | Vanguard Capital Management Llc | 1.81M | — | $93.41M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Manufacturers Life Insurance… | 1.59M | +49.5% | $81.64M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 5 | Millennium Management ✦ | 1.51M | +790.5% | $77.86M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 1.03M | +0.8% | $52.99M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | T. Rowe Price ✦ | 952.32K | +10.1% | $49.02M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 8 | Citadel Advisors ✦ | 931.86K | +74.0% | $47.97M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 9 | Legal & General Group Plc | 926.40K | +50.9% | $47.69M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 10 | Morgan Stanley ✦ | 724.65K | -20.5% | $37.30M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 11 | Dimensional Fund Advisors Lp | 638.59K | +28.1% | $32.87M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 12 | Connor, Clark & Lunn Investment… | 600.51K | +7.8% | $30.91M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 13 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 541.90K | +23.7% | $27.72M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 14 | Point72 Asset Management ✦ | 521.21K | -32.5% | $26.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 495.81K | +110.2% | $25.52M | 0.0% | ▲ Add | 8 | SEC ↗ ×8 |
| 16 | Nuveen, LLC | 487.82K | +2.3% | $25.11M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 17 | Bank Of America Corp /De/ | 481.76K | +7.8% | $24.80M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 18 | Squarepoint Ops LLC | 460.58K | -42.0% | $23.71M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 473.76K | +76.9% | $23.05M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 20 | BNP Paribas Asset Management… | 384.80K | +24.4% | $19.81M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 21 | Northern Trust Corp | 374.78K | +3.0% | $19.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 22 | Charles Schwab Investment… | 363.29K | -0.5% | $18.70M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | UBS Group AG | 314.05K | -50.6% | $16.17M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 24 | Fidelity (FMR) ✦ | 302.34K | +7.5% | $15.56M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 25 | Balyasny Asset Management L.P. | 289.85K | -19.5% | $14.92M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Marshall Wace ✦ | 249.54K | -21.6% | $12.85M | 0.0% | ▼ Trim | 8 | SEC ↗ ×3 |
| 27 | D. E. Shaw & Co. ✦ | 245.16K | New | $12.62M | 0.0% | New | 1 | SEC ↗ ×2 |
| 28 | Goldman Sachs Group ✦ | 209.82K | +1.1% | $10.80M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 29 | Renaissance Technologies ✦ | 199.40K | New | $10.26M | 0.0% | New | 1 | SEC ↗ |
| 30 | Raymond James Financial Inc | 186.30K | -1.4% | $9.16M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 31 | Susquehanna International Group, Llp | 153.74K | -30.9% | $7.91M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | First Trust Advisors Lp | 132.94K | -9.3% | $6.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Bank of New York Mellon Corp | 112.19K | -3.6% | $5.78M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 34 | Deutsche Bank Ag\ | 95.46K | -2.8% | $4.91M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 35 | Allianz Asset Management GmbH | 92.60K | New | $4.77M | 0.0% | New | 1 | SEC ↗ |
| 36 | Sei Investments Co | 89.14K | +38.4% | $4.59M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | Russell Investments Group, Ltd. | 88.32K | +24.6% | $4.55M | 0.0% | ▲ Add | 2 | SEC ↗ ×10 |
| 38 | Invesco Ltd. | 87.80K | +7.3% | $4.52M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 39 | UBS AM, a distinct business unit of… | 83.10K | +2.9% | $4.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×9 |
| 40 | Mitsubishi UFJ Asset Management… | 81.91K | +0.8% | $4.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | Swiss National Bank | 80.83K | +1.0% | $4.16M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Franklin Resources Inc | 77.41K | +41.3% | $3.98M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 43 | Alliancebernstein L.P. | 44.26K | -62.9% | $3.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Rhumbline Advisers | 56.65K | +1.4% | $2.92M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Wells Fargo & Company/Mn | 48.43K | -47.4% | $2.49M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 46 | California State Teachers… | 47.92K | +24.0% | $2.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Ameriprise Financial Inc | 40.62K | -32.2% | $2.09M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 48 | Holocene Advisors, LP | 35.46K | New | $1.83M | 0.0% | New | 1 | SEC ↗ |
| 49 | Creative Planning | 34.52K | +34.5% | $1.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Citigroup Inc | 30.32K | -1.3% | $1.56M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 51 | Man Group plc | 28.98K | +16.7% | $1.49M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Stifel Financial Corp | 27.25K | +171.7% | $1.40M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 53 | IMC-Chicago, LLC | 25.61K | -42.3% | $1.32M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 54 | Mariner, LLC | 20.30K | +175.2% | $1.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | PRIMECAP Management ✦ | 19.40K | -0.5% | $998,615 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 56 | Canada Pension Plan Investment Board | 19.20K | +22.3% | $988,320 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Janus Henderson Group Plc | 17.90K | 0.0% | $921,300 | 0.0% | Held | 2 | SEC ↗ |
| 58 | Cwm, Llc | 16.90K | +154.1% | $869,825 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Cerity Partners LLC | 16.04K | +103.8% | $825,505 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 60 | Barclays Plc | 15.67K | -97.8% | $806,511 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 61 | Bnp Paribas Financial Markets | 14.91K | -93.5% | $767,750 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 62 | Mackenzie Financial Corp | 14.64K | -24.8% | $753,851 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | New York State Common Retirement… | 14.56K | 0.0% | $749,476 | 0.0% | Held | 2 | SEC ↗ |
| 64 | Lazard Asset Management Llc | 14.07K | +1.7% | $724,202 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Qube Research & Technologies Ltd | 13.66K | -92.5% | $703,149 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 66 | Robeco Institutional Asset… | 12.98K | +14.4% | $668,299 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Two Sigma Investments ✦ | 12.77K | +29.4% | $657,233 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 68 | Wealth Enhancement Advisory… | 16.87K | +122.1% | $651,907 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Osaic Holdings, Inc. | 11.22K | +49.2% | $577,846 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 70 | State Board Of Administration Of… | 10.76K | 0.0% | $553,871 | 0.0% | Held | 2 | SEC ↗ |
| 71 | Zurcher Kantonalbank (Zurich… | 10.40K | +20.6% | $535,340 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Captrust Financial Advisors | 10.32K | +12.8% | $530,918 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Mercer Global Advisors Inc /Adv | 10.28K | +119.7% | $529,163 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Royal Bank Of Canada | 10.27K | -63.1% | $529,000 | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 75 | Quantinno Capital Management LP | 10.10K | -31.8% | $520,004 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 76 | GAMCO Investors ✦ | 9.85K | +20.9% | $507,235 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 77 | ProShare Advisors LLC | 9.65K | -15.9% | $496,940 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | State Of Wisconsin Investment Board | 9.49K | +14.3% | $488,704 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Envestnet Asset Management Inc | 9.14K | -77.1% | $470,392 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Td Asset Management Inc | 8.71K | New | $448,553 | 0.0% | New | 1 | SEC ↗ |
| 81 | Mirae Asset Global Investments Co.… | 7.08K | +10.4% | $364,597 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Voya Investment Management Llc | 7.06K | -3.2% | $363,259 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | LPL Financial LLC | 7.00K | -50.9% | $360,222 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Walleye Trading LLC | 6.98K | New | $359,501 | 0.0% | New | 1 | SEC ↗ |
| 85 | Pictet Asset Management Holding SA | 6.52K | +12.3% | $335,411 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Prudential Financial Inc | 6.40K | New | $329,646 | 0.0% | New | 1 | SEC ↗ |
| 87 | Jones Financial Companies Lllp | 6.11K | +1457.7% | $308,170 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | Pacer Advisors, Inc. | 5.36K | +26.7% | $276,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Universal- Beteiligungs- und… | 5.36K | -88.6% | $275,649 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 90 | American Century Companies Inc | 4.86K | +5.2% | $250,014 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Capstone Investment Advisors, Llc | 4.85K | -36.1% | $249,808 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | Victory Capital Management Inc | 4.66K | -0.4% | $239,822 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Tidal Investments LLC | 4.24K | New | $218,357 | 0.0% | New | 1 | SEC ↗ |
| 94 | Commonwealth Equity Services, Llc | 3.98K | +9.1% | $204,610 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Amundi | 3.89K | -7.3% | $200,084 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 96 | Rockefeller Capital Management L.P. | 3.48K | -16.5% | $178,876 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | Simplex Trading, Llc | 3.24K | -58.5% | $166,933 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | Asset Management One Co., Ltd. | 2.80K | -13.3% | $144,233 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | Ensign Peak Advisors, Inc | 2.64K | 0.0% | $135,894 | 0.0% | Held | 2 | SEC ↗ |
| 100 | Group One Trading Llc | 1.79K | New | $92,243 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $12.62M | 0.0% |
| Renaissance Technologies | $10.26M | 0.0% |
| Allianz Asset Management GmbH | $4.77M | 0.0% |
| Holocene Advisors, LP | $1.83M | 0.0% |
| Td Asset Management Inc | $448,553 | 0.0% |
| Walleye Trading LLC | $359,501 | 0.0% |
| Prudential Financial Inc | $329,646 | 0.0% |
| Tidal Investments LLC | $218,357 | 0.0% |
| Group One Trading Llc | $92,243 | 0.0% |
Exited
| Glenview Capital | $7.08M | was 0.2% |
| Peak6 Llc | $4.65M | was 0.1% |
| Arrowstreet Capital | $4.06M | was 0.0% |
| Jane Street Group, Llc | $3.27M | was 0.0% |
| Hrt Financial Lp | $2.77M | was 0.0% |
| Daiwa Securities Group Inc. | $60,000 | was 0.0% |
| Danske Bank A/S | $7,084 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 300 holders, 35.99M shares, $1.73B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 25
PAISLEY CHRISTOPHER B
Director · 250 sh · $17,690
Sep 18
Young John Alexander
Officer · 1.90K sh · $127,563
Sep 17
Young John Alexander
Officer · 3.13K sh · $202,659
Sep 17
Lee Chan W
Officer · 2.89K sh · $187,553
Sep 17
Ju Chi-Hong
Officer · 2.01K sh · $130,243
Sep 17
Wang Feng-Ming
Officer, Director · 6.09K sh · $394,555
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G — PRICE T ROWE ASSOCIATES INC /MD/
Aug 07
SC 13G — STATE STREET CORP
Jul 31
SC 13G — VANGUARD CAPITAL MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
Get this via the API