Security record · archived quarter
AMBA
Ambarella, Inc. · Technology · Semiconductors
105Tracked holders
+2Δ holders
24.18MShares held
$2.13BReported value
+10New positions
−8Exits
Momentum inputs (comparable managers):
holder breadth +1.9% ·
share flow -3.4% ·
net new positions +1.9%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 105 | +2 | 24.18M | $2.13B | +10 | −8 |
| 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 · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.94M | +4.1% | $338.45M | 0.0% | ▲ Add | 5 | SEC ↗ ×17 |
| 2 | T. Rowe Price ✦ | 2.60M | +172.9% | $222.99M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 3 | State Street Global Advisors ✦ (passive) | 2.56M | +29.7% | $219.88M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 1.87M | +3.2% | $160.75M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Manufacturers Life Insurance… | 1.19M | -25.2% | $158.19M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 6 | Legal & General Group Plc | 1.12M | +20.6% | $95.82M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 7 | Geode Capital Management ✦ (passive) | 1.10M | +6.7% | $94.24M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 8 | Dimensional Fund Advisors Lp | 718.15K | +12.5% | $61.57M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 9 | Connor, Clark & Lunn Investment… | 685.73K | +14.2% | $58.84M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 10 | Morgan Stanley ✦ | 611.55K | -15.6% | $52.47M | 0.0% | ▼ Trim | 4 | SEC ↗ ×8 |
| 11 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 562.01K | +3.7% | $47.06M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 12 | D. E. Shaw & Co. ✦ | 515.08K | +110.1% | $44.19M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 13 | AQR Capital Management ✦ | 495.58K | -0.1% | $42.52M | 0.0% | ▼ Trim | 9 | SEC ↗ ×8 |
| 14 | Nuveen, LLC | 439.00K | -10.0% | $37.67M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 15 | Northern Trust Corp | 403.69K | +7.7% | $34.64M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 16 | BNP Paribas Asset Management… | 394.18K | +2.4% | $33.82M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 17 | Charles Schwab Investment… | 379.55K | +4.5% | $32.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | Goldman Sachs Group ✦ | 379.42K | +80.8% | $32.55M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 19 | Bank Of America Corp /De/ | 361.93K | -24.9% | $31.05M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 20 | Squarepoint Ops LLC | 358.89K | -22.1% | $30.79M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 21 | Nomura Asset Management… | 358.12K | New | $30.73M | 0.0% | New | 1 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 316.01K | +4.5% | $27.11M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 23 | Raymond James Financial Inc | 187.27K | +0.5% | $16.07M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 24 | Deutsche Bank Ag\ | 150.16K | +57.3% | $12.88M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 25 | UBS Group AG | 143.07K | -54.4% | $12.28M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 26 | Bank of New York Mellon Corp | 122.20K | +8.9% | $10.48M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 27 | Mitsubishi UFJ Asset Management… | 121.95K | +48.9% | $10.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | First Trust Advisors Lp | 118.03K | -11.2% | $10.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 29 | Point72 Asset Management ✦ | 117.94K | -77.4% | $10.12M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 30 | Renaissance Technologies ✦ | 110.30K | -44.7% | $9.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 111.27K | -76.5% | $7.59M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 32 | Swiss National Bank | 83.43K | +3.2% | $7.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 33 | Susquehanna International Group, Llp | 81.60K | -46.9% | $7.00M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 34 | Invesco Ltd. | 79.16K | -9.8% | $6.79M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 35 | Russell Investments Group, Ltd. | 78.89K | -10.7% | $6.77M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 36 | Wells Fargo & Company/Mn | 68.23K | +40.9% | $5.85M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 37 | Franklin Resources Inc | 63.75K | -17.6% | $5.47M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 38 | Sei Investments Co | 62.85K | -29.5% | $5.39M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 39 | Qube Research & Technologies Ltd | 61.09K | +347.2% | $5.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | IMC-Chicago, LLC | 60.28K | +135.4% | $5.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | Citigroup Inc | 57.32K | +89.0% | $4.92M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 42 | Rhumbline Advisers | 53.92K | -4.8% | $4.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | LPL Financial LLC | 53.31K | +661.7% | $4.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Holocene Advisors, LP | 51.88K | +46.3% | $4.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Stifel Financial Corp | 42.49K | +55.9% | $3.65M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 46 | Millennium Management ✦ | 41.32K | -97.3% | $3.55M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 47 | Ameriprise Financial Inc | 39.89K | -1.8% | $3.42M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 48 | Hrt Financial Lp | 37.30K | New | $3.20M | 0.0% | New | 1 | SEC ↗ |
| 49 | Creative Planning | 37.01K | +7.2% | $3.18M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 50 | Allianz Asset Management GmbH | 30.90K | -66.6% | $2.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 51 | Man Group plc | 29.54K | +1.9% | $2.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 52 | Alliancebernstein L.P. | 48.34K | +9.2% | $2.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Bnp Paribas Financial Markets | 23.59K | +58.2% | $2.02M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Peak6 Llc | 20.01K | New | $1.72M | 0.0% | New | 1 | SEC ↗ |
| 55 | Amundi | 19.73K | +407.7% | $1.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | PRIMECAP Management ✦ | 19.10K | -1.6% | $1.64M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 57 | Cerity Partners LLC | 19.09K | +19.1% | $1.64M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 58 | Mackenzie Financial Corp | 18.23K | +24.5% | $1.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Mariner, LLC | 17.50K | -13.8% | $1.50M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | New York State Common Retirement… | 15.43K | +5.9% | $1.32M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Osaic Holdings, Inc. | 15.38K | +37.0% | $1.32M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 62 | Lazard Asset Management Llc | 14.07K | 0.0% | $1.21M | 0.0% | Held | 3 | SEC ↗ |
| 63 | Captrust Financial Advisors | 13.91K | +34.8% | $1.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Envestnet Asset Management Inc | 13.46K | +47.2% | $1.15M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Mercer Global Advisors Inc /Adv | 13.22K | +28.6% | $1.13M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Robeco Institutional Asset… | 13.06K | +0.6% | $1.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Quantinno Capital Management LP | 12.37K | +22.4% | $1.06M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Wealth Enhancement Advisory… | 17.39K | +3.1% | $1.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | GAMCO Investors ✦ | 11.88K | +20.6% | $1.02M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 70 | ProShare Advisors LLC | 11.10K | +15.0% | $952,293 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | State Board Of Administration Of… | 10.76K | 0.0% | $923,208 | 0.0% | Held | 3 | SEC ↗ |
| 72 | State Of Wisconsin Investment Board | 10.55K | +11.1% | $904,933 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | Zurcher Kantonalbank (Zurich… | 10.40K | 0.0% | $892,320 | 0.0% | Held | 3 | SEC ↗ |
| 74 | Td Asset Management Inc | 9.50K | +9.0% | $814,928 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Walleye Trading LLC | 8.91K | +27.6% | $764,650 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Voya Investment Management Llc | 8.12K | +15.0% | $696,267 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | American Century Companies Inc | 7.52K | +54.8% | $644,959 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Prudential Financial Inc | 6.97K | +8.9% | $598,455 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Mirae Asset Global Investments Co.… | 6.67K | -5.9% | $572,114 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Pictet Asset Management Holding SA | 6.54K | +0.4% | $561,218 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | Capstone Investment Advisors, Llc | 6.48K | +33.5% | $555,984 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | Jones Financial Companies Lllp | 8.75K | +43.4% | $543,824 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Barclays Plc | 6.02K | -61.5% | $516,858 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 84 | Canada Pension Plan Investment Board | 5.80K | -69.8% | $497,640 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Cetera Investment Advisers | 5.73K | New | $491,548 | 0.0% | New | 1 | SEC ↗ |
| 86 | Two Sigma Investments ✦ | 5.47K | -57.2% | $469,326 | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 87 | Commonwealth Equity Services, Llc | 5.23K | +31.5% | $448,390 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | Victory Capital Management Inc | 4.83K | +3.7% | $414,671 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | Pacer Advisors, Inc. | 4.79K | -10.7% | $411,000 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 90 | Mitsubishi UFJ Trust & Banking Corp | 4.32K | New | $370,742 | 0.0% | New | 1 | SEC ↗ |
| 91 | Universal- Beteiligungs- und… | 4.25K | -20.7% | $364,306 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Rockefeller Capital Management L.P. | 3.74K | +7.6% | $320,720 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Aviva Plc | 3.63K | New | $311,111 | 0.0% | New | 1 | SEC ↗ |
| 94 | Royal Bank Of Canada | 3.52K | -65.7% | $302,000 | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 95 | Principal Financial Group Inc | 3.26K | New | $279,880 | 0.0% | New | 1 | SEC ↗ |
| 96 | Tidal Investments LLC | 3.13K | -26.1% | $268,811 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | Simplex Trading, Llc | 3.13K | -3.5% | $268,554 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | First Manhattan Co. Llc. | 2.75K | New | $235,521 | 0.0% | New | 1 | SEC ↗ |
| 99 | Truist Financial Corp | 2.74K | New | $235,178 | 0.0% | New | 1 | SEC ↗ ×2 |
| 100 | CIBC Bancorp USA Inc. | 2.52K | New | $215,787 | 0.0% | New | 1 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Nomura Asset Management… | $30.73M | 0.0% |
| Hrt Financial Lp | $3.20M | 0.0% |
| Peak6 Llc | $1.72M | 0.0% |
| Cetera Investment Advisers | $491,548 | 0.0% |
| Mitsubishi UFJ Trust &… | $370,742 | 0.0% |
| Aviva Plc | $311,111 | 0.0% |
| Principal Financial Group Inc | $279,880 | 0.0% |
| First Manhattan Co. Llc. | $235,521 | 0.0% |
| Truist Financial Corp | $235,178 | 0.0% |
| CIBC Bancorp USA Inc. | $215,787 | 0.0% |
Exited
| Citadel Advisors | $47.97M | was 0.0% |
| Balyasny Asset Management L.P. | $14.92M | was 0.0% |
| Marshall Wace | $12.85M | was 0.0% |
| Asset Management One Co., Ltd. | $144,233 | was 0.0% |
| Group One Trading Llc | $92,243 | was 0.0% |
| Optiver Holding B.V. | $14,362 | was 0.0% |
| Northwestern Mutual Wealth… | $103 | was 0.0% |
| Assetmark, Inc | $51 | 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: Q2 2026 ·
Methodology ·
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