ALAB
Astera Labs, Inc. Common Stock · Technology · Semiconductors
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 160 | +4 | 95.07M | $45.48B | +12 | −9 |
| 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 | n/a | 2.59M | $156.71M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 600.00K | n/a | $36.31M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Adage Capital Partners ✦ | 525.00K | n/a | $31.77M | 0.1% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 441.26K | n/a | $26.71M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 4 | Altimeter Capital ✦ | 400.00K | n/a | $24.20M | 0.4% | n/c | 1 | SEC ↗ |
| 5 | Millennium Management ✦ | 278.05K | n/a | $16.82M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 214.49K | n/a | $12.98M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 7 | Tiger Global Management ✦ | 70.00K | n/a | $4.24M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Marshall Wace ✦ | 38.86K | n/a | $2.35M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 22.10K | n/a | $1.34M | 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
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
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