Pediatrix Medical Group, Inc.
US ˙ NYSE ˙ US58502B1061

SecurityMD / Pediatrix Medical Group, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership442 shares
Latest Disclosed Value $ 9,453
Advisor Group Holdings, Inc. reports 70.03% decrease in ownership of MD / Pediatrix Medical Group, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 442 shares of Pediatrix Medical Group, Inc. (US:MD) valued at $9,454 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,475 shares of Pediatrix Medical Group, Inc.. This represents a change in shares of -70.03% during the quarter. The current value of the position is $9,994 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 442 -1,033 -70.03 9 -70.97 0.0000
2026-02-17 2025-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 1,475 -17 -1.14 32 29.17 0.0000
2025-11-14 2025-09-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 1,492 24 1.63 24 14.29 0.0000
2025-09-04 2025-06-30 13F/A-1 PEDIATRIX MEDICAL GROUP COM 58502B106 1,468 -120 -7.56 21 -8.70 0.0000
2025-08-13 2025-06-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 138 -1,450 2 0.0000
2025-05-12 2025-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 1,588 1,450 1,050.72 23 2,200.00 0.0001
2025-06-06 2024-12-31 13F/A-1 PEDIATRIX MEDICAL GROUP COM 58502B106 138 98 245.00 2 0.0000
2025-02-07 2024-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 40 0 0 0.0000
2024-11-13 2024-09-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 40 0 0.00 0 0.0000
2024-08-13 2024-06-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 40 -302 -88.30 0 -100.00 0.0000
2024-05-10 2024-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 342 -25,404 -98.67 3 -98.74 0.0000
2024-02-12 2023-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 25,746 -4,515 -14.92 239 -37.76 0.0004
2023-11-13 2023-09-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 30,261 4,869 19.18 385 6.67 0.0006
2023-08-21 2023-06-30 13F/A-1 PEDIATRIX MEDICAL GROUP COM 58502B106 25,392 469 1.88 361 -2.96 0.0006
2023-08-10 2023-06-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 25,392 469 361 0.0001
2023-05-12 2023-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 24,923 176 0.71 372 1.09 0.0007
2023-02-10 2022-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 24,747 -907 -3.54 368 -13.24 0.0007
2022-11-14 2022-09-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 25,654 -142 -0.55 423 -22.10 0.0010
2022-08-10 2022-06-30 13F MEDNAX COM 58502B106 25,796 2,706 11.72 543 0.18 0.0012
2022-05-04 2022-03-31 13F MEDNAX COM 58502B106 23,090 -1,472 -5.99 542 -18.98 0.0011
2022-02-03 2021-12-31 13F MEDNAX COM 58502B106 24,562 -62 -0.25 669 -4.43 0.0013
2021-11-05 2021-09-30 13F MEDNAX COM 58502B106 24,624 -1,692 -6.43 700 -11.84 0.0015
2021-08-02 2021-06-30 13F MEDNAX COM 58502B106 26,316 -961 -3.52 794 14.41 0.0017
2021-05-13 2021-03-31 13F MEDNAX COM 58502B106 27,277 20,546 305.24 694 320.61 0.0017
2021-02-10 2020-12-31 13F MEDNAX COM 58502B106 6,731 -3,671 -35.29 165 -2.37 0.0004
2020-11-12 2020-09-30 13F MEDNAX COM 58502B106 10,402 6,266 151.50 169 141.43 0.0005
2020-08-14 2020-06-30 13F MEDNAX COM 58502B106 4,136 -1,930 -31.82 70 -1.41 0.0002
2020-05-18 2020-03-31 13F MEDNAX COM 58502B106 6,066 6,066 71 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.