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 | 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 · 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 ↗ |
| 2 | The Vanguard Group ✦ (passive) | 5.48M | +6.0% | $388.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 5.48M | +6.0% | $388.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 5.48M | +6.0% | $388.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 5.48M | +6.0% | $388.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 3.83M | -2.4% | $271.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 1.70M | +1.3% | $120.60M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | Manufacturers Life Insurance… | 1.06M | — | $75.17M | 0.1% | n/c | 1 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 1.02M | +3.6% | $72.31M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.02M | +3.6% | $72.31M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 911.48K | -4.9% | $64.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | T. Rowe Price ✦ | 864.61K | +2312.6% | $61.25M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 37 | T. Rowe Price ✦ | 864.61K | +2312.6% | $61.25M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 38 | Squarepoint Ops LLC | 793.75K | — | $56.23M | 0.1% | n/c | 1 | SEC ↗ |
| 39 | Point72 Asset Management ✦ | 772.03K | +534.8% | $54.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 40 | Barclays Plc | 695.09K | — | $49.24M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Barclays Plc | 695.09K | — | $49.24M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | UBS Group AG | 635.56K | — | $45.02M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | UBS Group AG | 635.56K | — | $45.02M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | UBS Group AG | 635.56K | — | $45.02M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | UBS Group AG | 635.56K | — | $45.02M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Legal & General Group Plc | 614.02K | — | $43.50M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Legal & General Group Plc | 614.02K | — | $43.50M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Legal & General Group Plc | 614.02K | — | $43.50M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Connor, Clark & Lunn Investment… | 557.16K | — | $39.47M | 0.1% | n/c | 1 | SEC ↗ |
| 50 | Citadel Advisors ✦ | 535.67K | +17.7% | $37.95M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 51 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Dimensional Fund Advisors Lp | 498.66K | — | $35.32M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Nuveen, LLC | 476.90K | — | $33.78M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Nuveen, LLC | 476.90K | — | $33.78M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Nuveen, LLC | 476.90K | — | $33.78M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Bank Of America Corp /De/ | 446.92K | — | $31.66M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 438.17K | — | $31.00M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 438.17K | — | $31.00M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 438.17K | — | $31.00M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Charles Schwab Investment… | 365.22K | — | $25.87M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Northern Trust Corp | 364.01K | — | $25.79M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Balyasny Asset Management L.P. | 359.90K | — | $25.50M | 0.1% | n/c | 1 | SEC ↗ |
| 76 | Marshall Wace ✦ | 318.49K | +44.2% | $22.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 77 | Marshall Wace ✦ | 318.49K | +44.2% | $22.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 78 | Marshall Wace ✦ | 318.49K | +44.2% | $22.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 79 | Marshall Wace ✦ | 318.49K | +44.2% | $22.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 80 | BNP Paribas Asset Management… | 309.21K | — | $21.91M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | BNP Paribas Asset Management… | 309.21K | — | $21.91M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Fidelity (FMR) ✦ | 281.37K | +16.3% | $19.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Fidelity (FMR) ✦ | 281.37K | +16.3% | $19.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 89 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 90 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 91 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | JPMorgan Chase ✦ | 267.87K | -44.8% | $18.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 94 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 95 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 96 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 97 | AQR Capital Management ✦ | 235.85K | +2.4% | $16.71M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 98 | Bnp Paribas Financial Markets | 231.22K | — | $16.38M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Susquehanna International Group, Llp | 222.56K | — | $15.77M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Goldman Sachs Group ✦ | 207.62K | -59.1% | $14.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
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.
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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