Security record · archived quarter
MD
Pediatrix Medical Group, Inc. · Healthcare · Medical - Care Facilities
18Tracked holders
+1Δ holders
40.93MShares held
$685.43MReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +5.9% ·
share flow -1.7% ·
net new positions +5.6%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| 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 | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 13.85M | -0.7% | $231.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 10.89M | -0.8% | $182.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 10.89M | -0.8% | $182.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 10.89M | -0.8% | $182.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 10.89M | -0.8% | $182.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 10.89M | -0.8% | $182.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 3.53M | +1.2% | $59.14M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 24 | Fidelity (FMR) ✦ | 2.20M | -8.7% | $36.93M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 25 | Fidelity (FMR) ✦ | 2.20M | -8.7% | $36.93M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Fidelity (FMR) ✦ | 2.20M | -8.7% | $36.93M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 2.17M | +8.4% | $36.31M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 2.17M | +8.4% | $36.31M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 29 | D. E. Shaw & Co. ✦ | 2.02M | +28.1% | $33.86M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 30 | D. E. Shaw & Co. ✦ | 2.02M | +28.1% | $33.86M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 1.65M | — | $27.71M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Renaissance Technologies ✦ | 1.31M | +8.5% | $21.88M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 1.28M | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Goldman Sachs Group ✦ | 766.55K | — | $12.84M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Goldman Sachs Group ✦ | 766.55K | — | $12.84M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 527.19K | +33.5% | $8.66M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 527.19K | +33.5% | $8.66M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 56 | AQR Capital Management ✦ | 527.19K | +33.5% | $8.66M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 57 | AQR Capital Management ✦ | 527.19K | +33.5% | $8.66M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 58 | Arrowstreet Capital ✦ | 169.29K | -15.7% | $2.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 59 | Millennium Management ✦ | 164.10K | -50.2% | $2.75M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 60 | Gotham Asset Management ✦ | 116.09K | +0.6% | $1.94M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 61 | Citadel Advisors ✦ | 92.45K | -85.6% | $1.55M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 62 | Citadel Advisors ✦ | 92.45K | -85.6% | $1.55M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 63 | T. Rowe Price ✦ | 82.78K | -3.3% | $1.39M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 64 | Point72 Asset Management ✦ | 67.77K | -87.7% | $1.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Two Sigma Investments ✦ | 39.67K | New | $664,506 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Two Sigma Investments | $664,506 | 0.0% |
Exited
| No tracked exits this quarter. |
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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Jul 14
SC 13G — DIMENSIONAL FUND ADVISORS LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q3 2025 ·
Methodology ·
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