Latest Period
Q1 2026
Security Snapshot
Pediatrix Medical Group, Inc. - Common Stock (MD) Institutional Ownership
CUSIP: 58502B106
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
294
Shares (Excl. Options)
83,045,875
Price
$21.39
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- Security type / class
- Equity / Common Stock
- Symbol
- MD on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 83,045,875
- Total 13F value
- $1,775,381,299
- Portfolio coverage rank
- 0%
- Share change
- +825,353
- Value change
- +$17,449,599
- Number of holders
- 294
- Shares outstanding
- 85,702,801
- SEC-reported price per share
- $25.33
- Insider filing price
- $25.33
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MD - Pediatrix Medical Group, Inc. - Common Stock is tracked under CUSIP 58502B106.
- 294 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 294 to 10 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,775,381,299 to $67,273,365.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 294 institutions filings for Q1 2026.
Security key
58502B106
Latest holder period
Q1 2026
13F holders
294
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
MD full holder history
Pediatrix Medical Group, Inc. SEC filings
Pediatrix Medical Group, Inc. company facts
Pediatrix Medical Group, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 58502B106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
MD
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | $179,555,939 | 12,512,609 | BlackRock, Inc. | 30 Jun 2025 | |||
| Rubric Capital Management LP | 3.7% | $38,914,718 | 3,148,440 | Rubric Capital Management LP | 31 Dec 2024 | |||
| ALLIANCEBERNSTEIN L.P. | 2.2% | -72% | $27,805,682 | -$71,010,122 | 1,928,272 | -72% | AllianceBernstein L.P. | 31 May 2025 |
As of 31 Mar 2026, 294 institutional investors reported holding 83,045,875 shares of Pediatrix Medical Group, Inc. - Common Stock (MD). This represents 97% of the company’s total 85,702,801 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
71%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 13,574,373 | +0.09% | 0.01% | $290,355,849 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.2% | 6,154,126 | 0% | 0.01% | $131,636,755 |
| AMERICAN CENTURY COMPANIES INC | 4.6% | 3,925,366 | +6.1% | 0.04% | $83,963,618 |
| DIMENSIONAL FUND ADVISORS LP | 4.5% | 3,856,915 | +8.1% | 0.02% | $82,495,958 |
| VICTORY CAPITAL MANAGEMENT INC | 4.5% | 3,841,933 | +0.62% | 0.05% | $82,178,947 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3% | 3,656,321 | 0% | 0% | $78,208,706 |
| STATE STREET CORP | 3.9% | 3,378,500 | +2% | 0% | $72,266,115 |
| FMR LLC | 2.6% | 2,267,434 | -6.6% | 0% | $48,500,421 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 2,187,967 | +0.29% | 0% | $46,809,259 |
| WASATCH ADVISORS LP | 2.4% | 2,050,524 | 0.29% | $43,860,708 | |
| D. E. Shaw & Co., Inc. | 2% | 1,708,433 | -7.8% | 0.03% | $36,543,382 |
| RENAISSANCE TECHNOLOGIES LLC | 1.8% | 1,532,300 | +13% | 0.05% | $32,775,897 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.7% | 1,443,391 | -7% | 0% | $30,874,133 |
| MORGAN STANLEY | 1.5% | 1,250,625 | -4.1% | 0% | $26,750,871 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.4% | 1,229,431 | -0.01% | 0.09% | $26,297,526 |
| Allspring Global Investments Holdings, LLC | 1.1% | 975,133 | +53% | 0.03% | $20,185,253 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 1.1% | 970,610 | -6% | 0.15% | $20,761,387 |
| Nuveen, LLC | 1.1% | 953,099 | -21% | 0.01% | $20,386,788 |
| Invesco Ltd. | 1.1% | 922,177 | -15% | 0% | $19,725,367 |
| NORTHERN TRUST CORP | 1.1% | 900,270 | +3.2% | 0% | $19,256,776 |
| GOLDMAN SACHS GROUP INC | 0.99% | 851,464 | +8.2% | 0% | $18,212,815 |
| ALLIANCEBERNSTEIN L.P. | 0.9% | 770,715 | -5.5% | 0.01% | $16,485,594 |
| Rockefeller Capital Management L.P. | 0.89% | 762,497 | +28% | 0.03% | $16,309,811 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.88% | 751,776 | +1.6% | 0.32% | $16,080,489 |
| Dana Investment Advisors, Inc. | 0.85% | 727,246 | +12% | 0.46% | $15,555,792 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 2,655,877 | $67,273,365 | +$11,031,723 | $25.33 | 10 |
| 2026 Q1 | 83,045,875 | $1,775,381,299 | +$17,449,599 | $21.39 | 294 |
| 2025 Q4 | 82,762,026 | $1,770,483,327 | +$61,327,196 | $21.39 | 298 |
| 2025 Q3 | 80,585,755 | $1,349,634,029 | -$841,892 | $16.75 | 265 |
| 2025 Q2 | 80,728,834 | $1,157,863,224 | +$486,064 | $14.35 | 264 |
| 2025 Q1 | 80,224,836 | $1,161,325,326 | -$29,361,456 | $14.49 | 239 |
| 2024 Q4 | 82,290,662 | $1,079,966,639 | -$30,602,384 | $13.12 | 227 |
| 2024 Q3 | 85,733,777 | $993,673,643 | -$12,231,978 | $11.59 | 215 |
| 2024 Q2 | 87,369,732 | $659,166,605 | -$12,106,641 | $7.55 | 223 |
| 2024 Q1 | 84,993,692 | $852,207,915 | +$34,610,446 | $10.03 | 210 |
| 2023 Q4 | 82,188,568 | $764,523,667 | -$5,887,025 | $9.30 | 221 |
| 2023 Q3 | 82,042,700 | $1,042,835,627 | -$2,900,348 | $12.71 | 199 |
| 2023 Q2 | 81,528,991 | $1,158,561,442 | -$24,266,335 | $14.21 | 209 |
| 2023 Q1 | 83,759,910 | $1,248,743,727 | -$7,502,166 | $14.91 | 208 |
| 2022 Q4 | 84,388,114 | $1,254,130,654 | +$1,159,416 | $14.86 | 202 |
| 2022 Q3 | 84,258,861 | $1,391,433,449 | -$43,448,133 | $16.51 | 197 |
| 2022 Q2 | 86,490,179 | $1,817,550,140 | +$47,117,137 | $21.01 | 187 |
| 2022 Q1 | 84,453,694 | $1,983,111,191 | +$15,656,033 | $23.48 | 207 |
| 2021 Q4 | 83,789,475 | $2,279,624,918 | -$11,445,433 | $27.21 | 196 |
| 2021 Q3 | 84,091,430 | $2,390,560,820 | -$125,656,043 | $28.43 | 212 |
| 2021 Q2 | 88,508,524 | $2,668,528,669 | -$63,505,439 | $30.15 | 212 |
| 2021 Q1 | 90,911,569 | $2,315,371,131 | -$23,389,852 | $25.47 | 203 |
| 2020 Q4 | 92,058,476 | $2,258,810,687 | +$106,791,044 | $24.54 | 192 |
| 2020 Q3 | 83,479,052 | $1,358,832,149 | -$39,891,998 | $16.28 | 197 |
| 2020 Q2 | 85,777,576 | $1,466,013,702 | +$61,398,857 | $17.10 | 201 |