Security record · archived quarter
AMBA
Ambarella, Inc. · Technology · Semiconductors
102Tracked holders
-1Δ holders
27.16MShares held
$1.92BReported value
+1New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth -1.0% ·
share flow +4.0% ·
net new positions -1.0%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 5.48M | +6.0% | $388.22M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×17 |
| 3 | State Street Global Advisors ✦ (passive) | 1.70M | +1.3% | $120.60M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | Manufacturers Life Insurance… | 1.06M | — | $75.17M | 0.1% | n/c | 1 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.02M | +3.6% | $72.31M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 6 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ ×9 |
| 7 | T. Rowe Price ✦ | 864.61K | +2312.6% | $61.25M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 8 | Squarepoint Ops LLC | 793.75K | — | $56.23M | 0.1% | n/c | 1 | SEC ↗ |
| 9 | Point72 Asset Management ✦ | 772.03K | +534.8% | $54.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 10 | Barclays Plc | 695.09K | — | $49.24M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 11 | UBS Group AG | 635.56K | — | $45.02M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 12 | Legal & General Group Plc | 614.02K | — | $43.50M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 13 | Connor, Clark & Lunn Investment… | 557.16K | — | $39.47M | 0.1% | n/c | 1 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 535.67K | +17.7% | $37.95M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 15 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 16 | Nuveen, LLC | 476.90K | — | $33.78M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 17 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 438.17K | — | $31.00M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 19 | Charles Schwab Investment… | 365.22K | — | $25.87M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 21 | Balyasny Asset Management L.P. | 359.90K | — | $25.50M | 0.1% | n/c | 1 | SEC ↗ |
| 22 | Marshall Wace ✦ | 318.49K | +44.2% | $22.56M | 0.0% | ▲ Add | 7 | SEC ↗ ×4 |
| 23 | BNP Paribas Asset Management… | 309.21K | — | $21.91M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 24 | Fidelity (FMR) ✦ | 281.37K | +16.3% | $19.93M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 25 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ ×9 |
| 26 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ ×5 |
| 27 | Bnp Paribas Financial Markets | 231.22K | — | $16.38M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Susquehanna International Group, Llp | 222.56K | — | $15.77M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Goldman Sachs Group ✦ | 207.62K | -59.1% | $14.71M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 30 | Raymond James Financial Inc | 189.04K | — | $13.22M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | Qube Research & Technologies Ltd | 182.28K | — | $12.91M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Millennium Management ✦ | 169.85K | +43.0% | $12.03M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 33 | First Trust Advisors Lp | 146.61K | — | $10.39M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Alliancebernstein L.P. | 119.28K | — | $8.45M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Bank of New York Mellon Corp | 116.34K | — | $8.24M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 36 | Glenview Capital ✦ | 100.00K | New | $7.08M | 0.2% | New | 1 | SEC ↗ |
| 37 | Deutsche Bank Ag\ | 98.19K | — | $6.96M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 38 | Wells Fargo & Company/Mn | 92.02K | — | $6.52M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 39 | Mitsubishi UFJ Asset Management… | 81.24K | — | $6.11M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Invesco Ltd. | 81.83K | — | $5.80M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 41 | UBS AM, a distinct business unit of… | 80.77K | — | $5.72M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 42 | Swiss National Bank | 80.03K | — | $5.67M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Russell Investments Group, Ltd. | 70.88K | — | $5.02M | 0.0% | n/c | 1 | SEC ↗ ×11 |
| 44 | Peak6 Llc | 65.69K | — | $4.65M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 45 | Sei Investments Co | 64.43K | — | $4.56M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 46 | Ameriprise Financial Inc | 59.96K | — | $4.25M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 47 | Arrowstreet Capital ✦ | 57.34K | -81.9% | $4.06M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 48 | Rhumbline Advisers | 55.85K | — | $3.96M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Franklin Resources Inc | 54.80K | — | $3.88M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 50 | Universal- Beteiligungs- und… | 47.13K | — | $3.34M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Jane Street Group, Llc | 46.22K | — | $3.27M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | IMC-Chicago, LLC | 44.36K | — | $3.14M | 0.1% | n/c | 1 | SEC ↗ |
| 53 | Envestnet Asset Management Inc | 39.97K | — | $2.83M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Hrt Financial Lp | 39.11K | — | $2.77M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | California State Teachers… | 38.65K | — | $2.74M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Citigroup Inc | 30.73K | — | $2.18M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 57 | Royal Bank Of Canada | 27.84K | — | $1.97M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 58 | Creative Planning | 25.68K | — | $1.82M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Man Group plc | 24.84K | — | $1.76M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | PRIMECAP Management ✦ | 19.50K | -6.7% | $1.38M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 61 | Mackenzie Financial Corp | 19.48K | — | $1.36M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Janus Henderson Group Plc | 17.90K | — | $1.27M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Canada Pension Plan Investment Board | 15.70K | — | $1.11M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Quantinno Capital Management LP | 14.82K | — | $1.05M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | New York State Common Retirement… | 14.56K | — | $1.03M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | LPL Financial LLC | 14.24K | — | $1.01M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Lazard Asset Management Llc | 13.84K | — | $980,071 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | ProShare Advisors LLC | 11.48K | — | $813,596 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Robeco Institutional Asset… | 11.35K | — | $804,246 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | State Board Of Administration Of… | 10.76K | — | $762,238 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Stifel Financial Corp | 10.03K | — | $710,451 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 72 | Two Sigma Investments ✦ | 9.87K | -46.9% | $699,049 | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 73 | Captrust Financial Advisors | 9.14K | — | $647,835 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Wealth Enhancement Advisory… | 7.60K | — | $625,142 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Zurcher Kantonalbank (Zurich… | 8.62K | — | $610,641 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | State Of Wisconsin Investment Board | 8.30K | — | $588,185 | 0.0% | n/c | 1 | SEC ↗ |
| 77 | GAMCO Investors ✦ | 8.15K | -46.4% | $577,133 | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 78 | Cerity Partners LLC | 7.87K | — | $557,576 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 79 | Simplex Trading, Llc | 7.82K | — | $554,252 | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Capstone Investment Advisors, Llc | 7.60K | — | $538,313 | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Osaic Holdings, Inc. | 7.52K | — | $532,742 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 82 | Mariner, LLC | 7.38K | — | $521,775 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Voya Investment Management Llc | 7.29K | — | $516,282 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Cwm, Llc | 6.65K | — | $471,000 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Mirae Asset Global Investments Co.… | 6.42K | — | $454,651 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Pictet Asset Management Holding SA | 5.80K | — | $411,155 | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Mercer Global Advisors Inc /Adv | 4.68K | — | $331,478 | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Victory Capital Management Inc | 4.68K | — | $331,460 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | American Century Companies Inc | 4.62K | — | $327,068 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Pacer Advisors, Inc. | 4.23K | — | $299,724 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Pnc Financial Services Group, Inc. | 4.22K | — | $298,661 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 92 | Amundi | 4.20K | — | $297,174 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Rockefeller Capital Management L.P. | 4.16K | — | $294,907 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Commonwealth Equity Services, Llc | 3.64K | — | $258,000 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Asset Management One Co., Ltd. | 3.23K | — | $226,536 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Ensign Peak Advisors, Inc | 2.64K | — | $187,018 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Us Bancorp \De\ | 2.06K | — | $146,284 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 98 | Daiwa Securities Group Inc. | 848 | — | $60,000 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Nomura Asset Management Co Ltd | 750 | — | $53,130 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Jones Financial Companies Lllp | 392 | — | $27,769 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Glenview Capital | $7.08M | 0.2% |
Exited
| Renaissance Technologies | $20.02M | was 0.0% |
| Gotham Asset Management | $220,493 | 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: Q4 2025 ·
Methodology ·
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