RDNT
RadNet, Inc. · Healthcare · Medical - Diagnostics & Research
Momentum inputs (comparable managers):
holder breadth +10.0% ·
share flow +28.2% ·
net new positions +9.1%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 23.94K | $1.64M | n/a | n/a |
| Q2 2026 | 104 | -5 | 51.24M | $3.16B | +4 | −8 |
| Q1 2026 | 111 | +1 | 48.78M | $2.73B | +12 | −12 |
| Q4 2025 | 110 | 0 | 52.41M | $3.74B | +2 | −1 |
| Q3 2025 | 17 | 0 | 26.52M | $2.02B | +1 | −2 |
| Q2 2025 | 15 | 0 | 23.28M | $1.32B | n/a | n/a |
| Q1 2025 | 12 | -1 | 6.79M | $337.54M | +1 | −2 |
| Q4 2024 | 13 | +1 | 7.21M | $503.69M | +1 | n/a |
| Q3 2024 | 11 | +1 | 5.72M | $396.88M | +2 | −1 |
| Q2 2024 | 10 | n/a | 4.46M | $262.91M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 1.56M | +0.8% | $107.94M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 2 | Marshall Wace ✦ | 1.10M | +3012.7% | $76.11M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 3 | Millennium Management ✦ | 860.42K | -24.2% | $59.70M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 4 | Norges Bank ✦ (passive) | 807.29K | +2504.2% | $56.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 518.75K | -14.8% | $36.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 361.40K | -36.2% | $25.08M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 7 | Adage Capital Partners ✦ | 283.33K | -42.3% | $19.66M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 135.88K | New | $9.43M | 0.0% | New | 1 | SEC ↗ ×2 |
| 9 | Two Sigma Investments ✦ | 55.54K | +63.7% | $3.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 39.47K | New | $2.74M | 0.0% | New | 1 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 5.20K | +1.2% | $360,481 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $9.43M | 0.0% |
| D. E. Shaw & Co. | $2.74M | 0.0% |
Exited
| Renaissance Technologies | $612,768 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 337 holders, 76.63M shares, $3.90B 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.