STEM
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth +11.1% ·
share flow -30.0% ·
net new positions +10.0%
— 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 | 36 | +3 | 1.62M | $12.63M | +6 | −4 |
| Q1 2026 | 35 | -7 | 1.50M | $13.27M | +2 | −9 |
| Q4 2025 | 42 | 0 | 1.44M | $21.68M | +1 | −1 |
| Q3 2025 | 14 | +1 | 1.20M | $21.01M | +2 | −1 |
| Q2 2025 | 10 | +1 | 871.09K | $5.43M | +1 | — |
| Q1 2025 | 6 | -1 | 8.80M | $3.08M | — | −1 |
| Q4 2024 | 7 | 0 | 7.29M | $4.39M | — | — |
| Q3 2024 | 6 | -1 | 4.73M | $1.65M | +2 | −3 |
| Q2 2024 | 7 | — | 5.92M | $6.58M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 386.75K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 2 | BlackRock ✦ (passive) | 177.83K | — | $1.11M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 3 | Geode Capital Management ✦ (passive) | 85.28K | -54.1% | $531,451 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 4 | Millennium Management ✦ | 79.61K | +5574.4% | $495,983 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 48.45K | -34.7% | $301,818 | 0.0% | ▼ Trim | 5 | SEC ↗ ×4 |
| 6 | State Street Global Advisors ✦ (passive) | 33.08K | -78.3% | $206,082 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | Marshall Wace ✦ | 30.07K | New | $187,349 | 0.0% | New | 1 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 16.74K | +60.9% | $104,278 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 12.34K | -21.5% | $77,000 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 10 | Fidelity (FMR) ✦ | 931 | — | $5,800 | 0.0% | n/c | 1 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $187,349 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 75 holders, 1.96M shares, $15.74M 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 · 146 sh · $682
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology