ALAB
Astera Labs, Inc. Common Stock · Technology · Semiconductors
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +21.5% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 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 | D. E. Shaw & Co. ✦ | 3.38M | +38.0% | $201.46M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 2 | D. E. Shaw & Co. ✦ | 3.38M | +38.0% | $201.46M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 1.54M | -2.5% | $91.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 1.43M | +21.6% | $85.13M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 5 | Millennium Management ✦ | 1.02M | +109.8% | $60.92M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 6 | Altimeter Capital ✦ | 981.70K | +68.0% | $58.58M | 1.2% | ▲ Add | 4 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 914.14K | +5.6% | $54.55M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 914.14K | +5.6% | $54.55M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Coatue Management ✦ | 676.59K | New | $40.37M | 0.2% | New | 1 | SEC ↗ |
| 10 | Capital World Investors ✦ | 600.00K | 0.0% | $35.80M | 0.0% | Held | 4 | SEC ↗ |
| 11 | Adage Capital Partners ✦ | 463.93K | +802.0% | $27.68M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 450.11K | -6.0% | $26.86M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 382.45K | +245.3% | $22.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Marshall Wace ✦ | 170.72K | New | $10.19M | 0.0% | New | 1 | SEC ↗ |
| 15 | Marshall Wace ✦ | 170.72K | New | $10.19M | 0.0% | New | 1 | SEC ↗ |
| 16 | Wellington Management ✦ | 111.97K | +253.8% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Wellington Management ✦ | 111.97K | +253.8% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | Wellington Management ✦ | 111.97K | +253.8% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | Wellington Management ✦ | 111.97K | +253.8% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | Wellington Management ✦ | 111.97K | +253.8% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | T. Rowe Price ✦ | 43.14K | -80.7% | $2.58M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 22 | Norges Bank ✦ (passive) | 14.57K | -98.9% | $869,213 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 11.39K | +213.4% | $679,701 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 11.39K | +213.4% | $679,701 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 11.39K | +213.4% | $679,701 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | AQR Capital Management ✦ | 11.39K | +213.4% | $679,701 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | AQR Capital Management ✦ | 11.39K | +213.4% | $679,701 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Coatue Management | $40.37M | 0.2% |
| Marshall Wace | $10.19M | 0.0% |
| Marshall Wace | $10.19M | 0.0% |
Exited
| Point72 Asset Management | $5.30M | was 0.0% |
| Gotham Asset Management | $317,615 | 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