MD
Pediatrix Medical Group, Inc. · Healthcare · Medical - Care Facilities
Momentum inputs (comparable managers):
holder breadth -23.1% ·
share flow -7.2% ·
net new positions -20.0%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | -3 | 57.24M | $1.45B | +5 | −8 |
| Q1 2026 | 103 | +4 | 59.12M | $1.26B | +9 | −5 |
| Q4 2025 | 99 | -1 | 67.55M | $1.45B | — | −1 |
| Q3 2025 | 18 | +1 | 40.93M | $685.43M | +1 | — |
| Q2 2025 | 14 | 0 | 37.94M | $544.34M | +2 | −2 |
| Q1 2025 | 11 | +1 | 9.91M | $143.46M | +1 | — |
| Q4 2024 | 10 | -3 | 9.74M | $127.83M | — | −3 |
| Q3 2024 | 12 | 0 | 6.92M | $79.97M | +1 | −1 |
| Q2 2024 | 12 | — | 7.89M | $59.29M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 3.58M | — | $47.03M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | D. E. Shaw & Co. ✦ | 2.14M | -7.8% | $28.12M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | D. E. Shaw & Co. ✦ | 2.14M | -7.8% | $28.12M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.95M | +0.6% | $25.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.95M | +0.6% | $25.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | Renaissance Technologies ✦ | 838.80K | +117.4% | $11.01M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 530.79K | -50.8% | $6.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 530.79K | -50.8% | $6.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 444.08K | -45.1% | $5.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 444.08K | -45.1% | $5.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 444.08K | -45.1% | $5.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 444.08K | -45.1% | $5.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Two Sigma Investments ✦ | 85.94K | -21.5% | $1.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 77.39K | +9.6% | $1.02M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 54.64K | +38.0% | $716,903 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Millennium Management ✦ | 35.20K | -13.7% | $461,863 | 0.0% | ▼ Trim | 3 | 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
| Norges Bank | $610,109 | was 0.0% |
| Marshall Wace | $397,537 | was 0.0% |
| Bridgewater Associates | $381,091 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 293 holders, 82.31M shares, $1.71B 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.