Pediatrix Medical Group, Inc. MD
CIK 0000893949 · CUSIP 58502B106
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $186.08M 14,182,857 shares | 0.00% | +346.31K(+2.50%)Added | SEC filing ↗ Feb 7, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $141.86M 10,812,611 shares | 0.00% | +113.98K(+1.10%)Added | SEC filing ↗ Feb 11, 2025 | ▾ |
| 03 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $96.44M 7,350,489 shares | 0.03% | -759.61K(-9.40%)Reduced | SEC filing ↗ Feb 12, 2025 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $47.03M 3,584,231 shares | 0.00% | +43.44K(+1.20%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 05 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $42.75M 3,258,539 shares | 0.01% | -15.42K(-0.50%)Reduced | SEC filing ↗ Feb 13, 2025 | ▾ |
| 06 | Rubric Capital Management LP CIK 1687509 · View history | $41.31M 3,148,440 shares | 0.75% | -5.13M(-62.00%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 07 | FMR LLC CIK 315066 · View history | $38.13M 2,906,359 shares | 0.00% | +2.90M(+29,433.20%)Added | SEC filing ↗ Feb 13, 2025 | ▾ |
| 08 | Pacer Advisors, Inc. CIK 1616667 · View history | $35.49M 2,705,151 shares | 0.08% | +2.71MNew | SEC filing ↗ Jan 22, 2025 | ▾ |
| 09 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $28.12M 2,143,496 shares | 0.03% | -182.01K(-7.80%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 10 | Boston Partners CIK 1386060 · View history | $25.92M 1,956,353 shares | 0.03% | +393.60K(+25.20%)Added | SEC filing ↗ Feb 11, 2025 | ▾ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $25.56M 1,947,796 shares | 0.00% | +11.04K(+0.60%)Added | SEC filing ↗ Feb 12, 2025 | ▾ |
| 12 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $22.82M 1,739,323 shares | 0.01% | +1.50M(+628.20%)Added | SEC filing ↗ Feb 11, 2025 | ▾ |
| 13 | MORGAN STANLEY CIK 895421 · Amended · View history | $17.23M 1,313,058 shares | 0.00% | -2.16M(-62.20%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $15.20M 1,158,240 shares | 0.00% | -209.10K(-15.30%)Reduced | SEC filing ↗ Feb 6, 2025 | ▾ |
| 15 | NORTHERN TRUST CORP CIK 73124 · View history | $12.68M 966,347 shares | 0.00% | +147.52K(+18.00%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 16 | JPMORGAN CHASE & CO CIK 19617 · View history | $12.22M 931,600 shares | 0.00% | -10.71K(-1.10%)Reduced | SEC filing ↗ Feb 12, 2025 | ▾ |
| 17 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $11.01M 838,800 shares | 0.02% | +453.00K(+117.40%)Added | SEC filing ↗ Feb 13, 2025 | ▾ |
| 18 | Dana Investment Advisors, Inc. CIK 1427514 · View history | $10.85M 826,830 shares | 0.36% | -88.72K(-9.70%)Reduced | SEC filing ↗ Feb 6, 2025 | ▾ |
| 19 | PRUDENTIAL FINANCIAL INC CIK 1137774 · View history | $10.61M 808,658 shares | 0.01% | +46.63K(+6.10%)Added | SEC filing ↗ Feb 11, 2025 | ▾ |
| 20 | ArrowMark Colorado Holdings LLC CIK 1483859 · View history | $10.53M 802,898 shares | 0.14% | +15.25K(+1.90%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
Showing 20 / 229 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 229 reporting institutions.
This page includes 20 of 229 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 229 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"58502B106","quarter":"2024Q4","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.