ALAB
Astera Labs, Inc. Common Stock · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth +9.5% ·
share flow +12.7% ·
net new positions +4.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 162 | +4 | 96.66M | $46.25B | +12 | −7 |
| Q1 2026 | 160 | +4 | 88.96M | $9.89B | +9 | −6 |
| Q4 2025 | 155 | 0 | 96.62M | $16.07B | +2 | −1 |
| Q3 2025 | 23 | +2 | 64.57M | $12.64B | +2 | −1 |
| Q2 2025 | 19 | 0 | 54.23M | $4.90B | +2 | −2 |
| Q1 2025 | 16 | 0 | 12.18M | $727.01M | +2 | −2 |
| Q4 2024 | 16 | +1 | 10.03M | $1.33B | +2 | −1 |
| Q3 2024 | 14 | +5 | 6.25M | $327.30M | +6 | −1 |
| Q2 2024 | 9 | — | 2.59M | $156.71M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 2 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 3 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 6 | Fidelity (FMR) ✦ | 24.08M | -2.9% | $4.71B | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 7 | The Vanguard Group ✦ (passive) | 13.74M | +14.1% | $2.69B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | The Vanguard Group ✦ (passive) | 13.74M | +14.1% | $2.69B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | The Vanguard Group ✦ (passive) | 13.74M | +14.1% | $2.69B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | The Vanguard Group ✦ (passive) | 13.74M | +14.1% | $2.69B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 13.74M | +14.1% | $2.69B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | BlackRock ✦ (passive) | 11.23M | +57.6% | $2.20B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | D. E. Shaw & Co. ✦ | 2.55M | +25.4% | $498.73M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 31 | D. E. Shaw & Co. ✦ | 2.55M | +25.4% | $498.73M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 32 | State Street Global Advisors ✦ (passive) | 2.34M | +9.1% | $458.06M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 33 | Geode Capital Management ✦ (passive) | 2.32M | +86.7% | $455.15M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 34 | Geode Capital Management ✦ (passive) | 2.32M | +86.7% | $455.15M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 1.61M | — | $314.66M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 1.45M | — | $284.78M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Two Sigma Investments ✦ | 1.26M | +58.1% | $247.40M | 0.4% | ▲ Add | 5 | SEC ↗ |
| 71 | Renaissance Technologies ✦ | 843.30K | +12.5% | $165.12M | 0.2% | ▲ Add | 6 | SEC ↗ |
| 72 | Capital World Investors ✦ | 600.00K | 0.0% | $117.48M | 0.0% | Held | 6 | SEC ↗ |
| 73 | Goldman Sachs Group ✦ | 454.23K | — | $88.94M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Goldman Sachs Group ✦ | 454.23K | — | $88.94M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Goldman Sachs Group ✦ | 454.23K | — | $88.94M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | T. Rowe Price ✦ | 443.57K | +672.6% | $86.85M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 77 | T. Rowe Price ✦ | 443.57K | +672.6% | $86.85M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 78 | Millennium Management ✦ | 377.08K | -56.6% | $73.83M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 79 | Citadel Advisors ✦ | 326.49K | +797.8% | $63.93M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 80 | Citadel Advisors ✦ | 326.49K | +797.8% | $63.93M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 81 | Marshall Wace ✦ | 298.41K | +32.5% | $58.43M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 82 | Marshall Wace ✦ | 298.41K | +32.5% | $58.43M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 83 | Marshall Wace ✦ | 298.41K | +32.5% | $58.43M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 84 | Baillie Gifford ✦ | 230.79K | -1.1% | $45.19M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Baillie Gifford ✦ | 230.79K | -1.1% | $45.19M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Baillie Gifford ✦ | 230.79K | -1.1% | $45.19M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Baillie Gifford ✦ | 230.79K | -1.1% | $45.19M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | Arrowstreet Capital ✦ | 202.97K | New | $39.74M | 0.0% | New | 1 | SEC ↗ |
| 89 | Wellington Management ✦ | 84.03K | -22.4% | $16.45M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 90 | Wellington Management ✦ | 84.03K | -22.4% | $16.45M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 91 | Wellington Management ✦ | 84.03K | -22.4% | $16.45M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 92 | AQR Capital Management ✦ | 62.53K | +56.6% | $12.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 93 | AQR Capital Management ✦ | 62.53K | +56.6% | $12.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 94 | AQR Capital Management ✦ | 62.53K | +56.6% | $12.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 95 | AQR Capital Management ✦ | 62.53K | +56.6% | $12.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 96 | AQR Capital Management ✦ | 62.53K | +56.6% | $12.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 97 | Adage Capital Partners ✦ | 33.74K | -94.3% | $6.61M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 98 | Bridgewater Associates ✦ | 17.48K | -78.2% | $3.42M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | Gotham Asset Management ✦ | 8.66K | New | $1.70M | 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
| Arrowstreet Capital | $39.74M | 0.0% |
| Gotham Asset Management | $1.70M | 0.0% |
Exited
| Norges Bank | $40.10M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 21.10K shares, $2,312 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
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)
Officer, Director · 578 sh · $203,517
Officer, Director · 1.05K sh · $368,453
Officer, Director · 1.98K sh · $692,800
Officer, Director · 1.06K sh · $367,884
Officer, Director · 3.50K sh · $1.21M
Officer, Director · 2.52K sh · $873,972
Officer, Director · 17.37K sh · $5.99M
Officer, Director · 3.71K sh · $1.28M
Officer, Director · 5.45K sh · $1.87M
Officer, Director · 1.61K sh · $550,149
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology