WB
Weibo Corporation · Communication Services · Internet Content & Information
Momentum inputs (comparable managers):
holder breadth +9.1% ·
share flow -9.9% ·
net new positions +8.3%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 61 | -1 | 17.35M | $126.13M | +3 | −4 |
| Q1 2026 | 62 | +4 | 16.78M | $146.76M | +8 | −4 |
| Q4 2025 | 58 | 0 | 17.93M | $183.21M | +2 | −2 |
| Q3 2025 | 12 | -3 | 9.25M | $114.66M | — | −3 |
| Q2 2025 | 12 | +1 | 7.95M | $75.77M | +2 | −1 |
| Q1 2025 | 9 | -1 | 5.47M | $51.81M | +2 | −3 |
| Q4 2024 | 10 | +1 | 7.21M | $68.85M | +2 | −1 |
| Q3 2024 | 8 | -1 | 4.34M | $43.73M | +1 | −2 |
| Q2 2024 | 9 | — | 4.65M | $35.70M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.35M | — | $31.93M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | State Street Global Advisors ✦ (passive) | 1.40M | +36.8% | $13.30M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Wellington Management ✦ | 917.46K | -14.0% | $8.74M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 11 | Wellington Management ✦ | 917.46K | -14.0% | $8.74M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | Wellington Management ✦ | 917.46K | -14.0% | $8.74M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 13 | Wellington Management ✦ | 917.46K | -14.0% | $8.74M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | Wellington Management ✦ | 917.46K | -14.0% | $8.74M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 15 | Arrowstreet Capital ✦ | 751.81K | -19.1% | $7.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 537.74K | -51.6% | $5.12M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 383.16K | -17.7% | $3.65M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 18 | Citadel Advisors ✦ | 383.16K | -17.7% | $3.65M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 19 | Marshall Wace ✦ | 262.54K | New | $2.50M | 0.0% | New | 1 | SEC ↗ |
| 20 | Marshall Wace ✦ | 262.54K | New | $2.50M | 0.0% | New | 1 | SEC ↗ |
| 21 | Geode Capital Management ✦ (passive) | 150.17K | -71.8% | $1.43M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | Geode Capital Management ✦ (passive) | 150.17K | -71.8% | $1.43M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | Millennium Management ✦ | 107.79K | -66.6% | $1.03M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | Millennium Management ✦ | 107.79K | -66.6% | $1.03M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 25 | Point72 Asset Management ✦ | 71.27K | New | $679,190 | 0.0% | New | 1 | SEC ↗ |
| 26 | D. E. Shaw & Co. ✦ | 22.59K | +107.3% | $215,321 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | D. E. Shaw & Co. ✦ | 22.59K | +107.3% | $215,321 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Fidelity (FMR) ✦ | 184 | — | $1,754 | 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
| Marshall Wace | $2.50M | 0.0% |
| Marshall Wace | $2.50M | 0.0% |
| Point72 Asset Management | $679,190 | 0.0% |
Exited
| AQR Capital Management | $116,850 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 142 holders, 45.24M shares, $346.18M 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.