Pediatrix Medical Group, Inc.
Pediatrix Medical Group, Inc. (MD) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MD · as of Mar 31, 2025
Ownership Breakdown
247
Institutional Holders
▲ 15 vs Q4
$1.16B
Total Inst. Value
▲ $81.93M vs Q4
82.12M
Shares Outstanding
freeFloat 98.44%
80.27M
13F Shares Held
▼ 2.05M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MD largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-hospitals | 14.03M | 16.35% | 16.35% | $203.24B | May 2, 2025 | ▼ 156.4K |
VANGUARD GROUP INC services-hospitals | 10.80M | 12.58% | 12.58% | $156.44B | May 9, 2025 | ▼ 16.0K |
ALLIANCEBERNSTEIN L.P. services-hospitals | 6.85M | 7.99% | 7.99% | $99.30B | May 15, 2025 | ▼ 497.8K |
STATE STREET CORP services-hospitals | 3.53M | 4.11% | 4.11% | $51.09B | May 15, 2025 | ▼ 58.1K |
DIMENSIONAL FUND ADVISORS LP services-hospitals | 3.17M | 3.69% | 3.69% | $45.94B | May 13, 2025 | ▼ 88.0K |
RUBRIC CAPITAL MANAGEMENT LP services-hospitals | 3.13M | 3.65% | 3.65% | $45.40B | May 14, 2025 | ▼ 15.1K |
FMR LLC services-hospitals | 2.91M | 3.39% | 3.39% | $42.11B | May 12, 2025 | ▲ 99 |
GEODE CAPITAL MANAGEMENT, LLC services-hospitals | 2.01M | 2.35% | 2.35% | $29.19B | May 13, 2025 | ▲ 66.3K |
BOSTON PARTNERS services-hospitals | 1.98M | 2.31% | 2.31% | $27.99B | May 13, 2025 | ▲ 25.5K |
D. E. SHAW & CO., INC. services-hospitals | 1.87M | 2.18% | 2.18% | $27.13B | May 15, 2025 | ▼ 271.3K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
23
Increased
+1.76M shares1
New Positions
first time holders26
Decreased
−4.10M shares0
Sold Out
fully exitedNet shares change (top 50)
2.34M
+1.76M / −4.10M
Net new holders
-2
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MD insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
9
Buy transactions
3
Sell transactions
3.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Weis Shirley A director | May 13, 2026 | Sale | 36,028 | $23.75 | $855.7K | 0 | Form 4 ↗ |
McEachin Thomas director | May 13, 2026 | Gift | 11,427 | — | — | 66.1K | Form 4 ↗ |
McEachin Thomas director | May 13, 2026 | Gift | 11,427 | — | — | 7.2K | Form 4 ↗ |
Moore Mary Ann E EVP, GC, Chief Admin Off & Sec | May 11, 2026 | Gift | 40,826 | — | — | 108.4K | Form 4 ↗ |
Rucker Michael A. director | May 7, 2026 | Award | 7,196 | — | — | 66.3K | Form 4 ↗ |
Linynsky Laura A director | May 7, 2026 | Award | 7,196 | — | — | 39.4K | Form 4 ↗ |
SANSONE GUY P director | May 7, 2026 | Award | 7,196 | — | — | 86.9K | Form 4 ↗ |
Young Sylvia Jean director | May 7, 2026 | Award | 7,196 | — | — | 47.8K | Form 4 ↗ |
Starcher John M. Jr. director | May 7, 2026 | Award | 7,196 | — | — | 73.3K | Form 4 ↗ |
Weis Shirley A director | May 7, 2026 | Award | 7,196 | — | — | 18.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Pediatrix Medical Group, Inc. (MD) is primarily owned by institutional investors, who hold approximately 97.7% of total shares outstanding. Company insiders own approximately 1.56%, while retail and public investors account for the remaining 0.70%.
The largest institutional shareholder of Pediatrix Medical Group, Inc. is BLACKROCK, INC., holding approximately 14.03 million shares — equal to 16.35% of outstanding shares — as of March 31, 2025.
A total of 247 institutional investors currently hold MD stock, with a combined institutional value of approximately $1.16 billion as of the most recent 13F filing period.
Frequently asked questions
MD ownershipPediatrix Medical Group, Inc. (MD) is primarily owned by institutional investors, who hold approximately 97.7% of shares. The largest shareholder is BLACKROCK, INC. with a 16.35% stake. Company insiders hold 1.56%. Data sourced from SEC Form 13F as of March 31, 2025.