ALAB
Astera Labs, Inc. Common Stock · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth +6.7% ·
share flow +28.2% ·
net new positions +6.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 162 | +4 | 96.67M | $46.26B | +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. ✦ | 2.45M | New | $324.09M | 0.4% | New | 1 | SEC ↗ ×2 |
| 2 | State Street Global Advisors ✦ (passive) | 1.58M | — | $209.01M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Norges Bank ✦ (passive) | 1.35M | +349.6% | $179.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 1.17M | +181.5% | $155.46M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 865.38K | +94.5% | $114.63M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 6 | Capital World Investors ✦ | 600.00K | 0.0% | $79.47M | 0.0% | Held | 3 | SEC ↗ |
| 7 | Altimeter Capital ✦ | 584.43K | +46.1% | $77.41M | 1.4% | ▲ Add | 3 | SEC ↗ |
| 8 | Millennium Management ✦ | 486.55K | -58.3% | $64.44M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 478.99K | +121.4% | $63.44M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 222.92K | +1498.2% | $29.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 11 | Citadel Advisors ✦ | 110.75K | -86.1% | $14.67M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 12 | Adage Capital Partners ✦ | 51.43K | -92.2% | $6.81M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Point72 Asset Management ✦ | 40.00K | -81.7% | $5.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | Wellington Management ✦ | 31.64K | -89.7% | $4.19M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 15 | AQR Capital Management ✦ | 3.63K | New | $481,456 | 0.0% | New | 1 | SEC ↗ ×3 |
| 16 | Gotham Asset Management ✦ | 2.40K | -47.0% | $317,615 | 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
| D. E. Shaw & Co. | $324.09M | 0.4% |
| AQR Capital Management | $481,456 | 0.0% |
Exited
| Marshall Wace | $36.64M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 695 holders, 120.16M shares, $12.95B 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)
Director · 661 sh · $248,576
Director · 8.33K sh · $3.13M
Director · 3.50K sh · $1.32M
Director · 172 sh · $47,601
Director · 52 sh · $14,229
Director · 785 sh · $216,293
Director · 650 sh · $177,868
Director · 273 sh · $74,705
Director · 429 sh · $117,884
Director · 1.87K sh · $514,420
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology