MASS
name pending profile ingest
Momentum inputs (comparable managers):
holder breadth -11.1% ·
share flow -17.5% ·
net new positions -12.5%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 52 | -2 | 10.35M | $89.93M | +2 | −5 |
| Q1 2026 | 57 | -4 | 10.59M | $64.79M | — | −4 |
| Q4 2025 | 61 | +1 | 11.56M | $60.65M | +2 | −1 |
| Q3 2025 | 16 | 0 | 9.68M | $84.83M | — | — |
| Q2 2025 | 13 | +1 | 10.10M | $71.99M | +1 | — |
| Q1 2025 | 9 | 0 | 4.75M | $21.27M | +2 | −2 |
| Q4 2024 | 9 | 0 | 4.58M | $10.07M | +2 | −2 |
| Q3 2024 | 8 | -1 | 4.69M | $16.27M | — | −1 |
| Q2 2024 | 9 | — | 5.68M | $29.25M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | ARK Investment Management ✦ | 3.22M | -18.2% | $11.17M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 567.79K | +1.2% | $1.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 567.79K | +1.2% | $1.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 322.40K | +64.9% | $1.12M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Citadel Advisors ✦ | 217.13K | +28.3% | $753,438 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Citadel Advisors ✦ | 217.13K | +28.3% | $753,438 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 152.05K | +33.9% | $527,624 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 152.05K | +33.9% | $527,624 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Millennium Management ✦ | 131.52K | -78.7% | $456,388 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 57.60K | +266.3% | $199,862 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | PRIMECAP Management ✦ | 20.00K | -19.4% | $69,400 | 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
| No new tracked buyers this quarter. |
Exited
| Marshall Wace | $228,640 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 111 holders, 27.94M shares, $169.30M 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)
10% owner · 41.58K sh · $441,159
10% owner · 8.42K sh · $88,638
Officer, Director · 20.00K sh · $207,000
Officer, Director · 7.62K sh · $76,677
Officer, Director · 2.75K sh · $27,662
Director · 8.36K sh · $77,144
Officer, Director · 115.75K sh · $1.14M
Officer, Director · 30.17K sh · $306,527
Director · 9.44K sh · $85,261
Officer, Director · 348 sh · $3,153
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology