Pediatrix Medical Group, Inc.
US ˙ NYSE ˙ US58502B1061

SecurityMD / Pediatrix Medical Group, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership56,915 shares
Latest Disclosed Value $ 1,217
Natixis Advisors, L.p. reports 177.38% increase in ownership of MD / Pediatrix Medical Group, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 56,915 shares of Pediatrix Medical Group, Inc. (US:MD) valued at $1,217,412 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 20,519 shares of Pediatrix Medical Group, Inc.. The current value of the position is $1,243,024 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)
2026-05-13 2026-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 56,915 36,396 177.38 1 0.0017
2026-02-10 2025-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 20,519 1,716 9.13 0 0.0006
2025-11-13 2025-09-30 13F PEDIATRIX MEDICAL GROUP INC COM 58502B106 18,803 -10,061 -34.86 0 0.0005
2025-08-13 2025-06-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 28,864 9,708 50.68 0 0.0007
2025-05-08 2025-03-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 19,156 1,435 8.10 0 0.0005
2025-02-10 2024-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 17,721 17,721 0 0.0004
2023-01-27 2022-12-31 13F PEDIATRIX MEDICAL GROUP COM 58502B106 0 -15,122 -100.00 0 -100.00
2022-11-14 2022-09-30 13F PEDIATRIX MEDICAL GROUP COM 58502B106 15,122 1,911 14.47 250 -10.07 0.0011
2022-08-12 2022-06-30 13F MEDNAX COM 58502B106 13,211 -6,367 -32.52 278 -39.57 0.0012
2022-05-12 2022-03-31 13F MEDNAX COM 58502B106 19,578 5,107 35.29 460 16.75 0.0018
2022-02-08 2021-12-31 13F MEDNAX COM 58502B106 14,471 -4,795 -24.89 394 -28.10 0.0015
2021-11-15 2021-09-30 13F MEDNAX COM 58502B106 19,266 -888 -4.41 548 -9.87 0.0023
2021-08-12 2021-06-30 13F MEDNAX COM 58502B106 20,154 2,683 15.36 608 36.94 0.0028
2021-05-05 2021-03-31 13F MEDNAX COM 58502B106 17,471 17,471 444 0.0023
2019-05-15 2019-03-31 13F/A-1 MEDNAX COM 58502B106 0 -44,324 -100.00 0 -100.00
2019-02-13 2018-12-31 13F/A-1 MEDNAX COM 58502B106 44,324 12,331 38.54 1,462 -2.01 0.0144
2019-02-13 2018-12-31 13F MEDNAX COM 58502B106 44,324 12,331 1,462
2018-11-13 2018-09-30 13F MEDNAX COM 58502B106 31,993 3,244 11.28 1,492 19.94 0.0131
2018-08-14 2018-06-30 13F/A-1 MEDNAX COM 58502B106 28,749 -46,640 -61.87 1,244 -70.34 0.0119
2018-08-14 2018-06-30 13F MEDNAX COM 58502B106 28,749 1,244
2018-05-10 2018-03-31 13F MEDNAX COM 58502B106 75,389 36,577 94.24 4,194 102.12 0.0414
2018-02-14 2017-12-31 13F MEDNAX COM 58502B106 38,812 -47,329 -54.94 2,075 -44.12 0.0211
2017-11-14 2017-09-30 13F MEDNAX COM 58502B106 86,141 -18,300 -17.52 3,713 -41.11 0.0392
2017-07-27 2017-06-30 13F MEDNAX COM 58502B106 104,441 -56,027 -34.91 6,305 -43.37 0.0682
2017-05-12 2017-03-31 13F MEDNAX COM 58502B106 160,468 -933 -0.58 11,133 3.49 0.1234
2017-02-07 2016-12-31 13F MEDNAX COM 58502B106 161,401 -13,622 -7.78 10,758 -7.22 0.1293
2016-11-04 2016-09-30 13F MEDNAX COM 58502B106 175,023 -22,422 -11.36 11,595 -18.92 0.1502
2016-08-01 2016-06-30 13F MEDNAX COM 58502B106 197,445 86,919 78.64 14,301 100.24 0.1977
2016-05-06 2016-03-31 13F MEDNAX COM 58502B106 110,526 28,029 33.98 7,142 20.81 0.1069
2016-02-12 2015-12-31 13F MEDNAX COM 58502B106 82,497 14,838 21.93 5,912 13.78 0.0969
2015-11-12 2015-09-30 13F MEDNAX COM 58502B106 67,659 -4,555 -6.31 5,196 -2.91 0.0901
2015-08-14 2015-06-30 13F MEDNAX COM 58502B106 72,214 -1,946 -2.62 5,352 -0.46 0.0909
2015-05-15 2015-03-31 13F MEDNAX COM 58502B106 74,160 201 0.27 5,377 9.96 0.0944
2015-02-05 2014-12-31 13F MEDNAX COM 58502B106 73,959 9,202 14.21 4,890 37.75 0.0915
2014-11-03 2014-09-30 13F MEDNAX COM 58502B106 64,757 -19,625 -23.26 3,550 -27.65 0.0712
2014-08-13 2014-06-30 13F MEDNAX COM 58502B106 84,382 -3,245 -3.70 4,907 -9.66 0.0703
2014-05-13 2014-03-31 13F MEDNAX COM 58502B106 87,627 -83,057 -48.66 5,432 -40.38 0.0836
2014-02-12 2013-12-31 13F MEDNAX COM 58502B106 170,684 83,417 95.59 9,111 3.99 0.1491
2013-10-30 2013-09-30 13F MEDNAX COM 58502B106 87,267 2,176 2.56 8,761 12.42 0.1613
2013-07-19 2013-06-30 13F MEDNAX COM 58502B106 85,091 85,091 7,793 0.1553
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.