Medifast, Inc.
MX ˙ BMV ˙ US58470H1014
SecurityMX:MED / Medifast, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership525,454 shares
Ownership 4.52%
Dimensional Fund Advisors Lp ownership in MED / Medifast, Inc.

2020-02-12 - Dimensional Fund Advisors Lp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 525,454 shares of Medifast, Inc. (MX:MED). This represents 4.52 percent ownership of the company. In their previous filing dated 2019-02-08 , Dimensional Fund Advisors Lp had reported owning 658,622 shares, indicating a decrease of -20.22 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2020-02-12 2020-02-12 13G/A 658,622 525,454 -20.22 4.52 -17.97
2019-02-08 2019-02-08 13G/A 694,623 658,622 -5.18 5.51 -5.33
2018-02-09 2018-02-09 13G/A 610,364 694,623 13.80 5.82 13.01
2017-02-09 2017-02-09 13G 610,364 5.15

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F MEDIFAST COM 58470H101 361,762 35,522 10.89 3,686 5.80 0.0008
2026-02-12 2025-12-31 13F MEDIFAST COM 58470H101 326,240 27,871 9.34 3,484 -14.57 0.0007
2025-11-12 2025-09-30 13F MEDIFAST COM 58470H101 298,369 48,967 19.63 4,079 16.41 0.0009
2025-08-12 2025-06-30 13F MEDIFAST COM 58470H101 249,402 65,154 35.36 3,504 41.08 0.0008
2025-05-13 2025-03-31 13F MEDIFAST COM 58470H101 184,248 -28,886 -13.55 2,484 -33.87 0.0006
2025-02-13 2024-12-31 13F MEDIFAST COM 58470H101 213,134 -19,719 -8.47 3,756 -15.73 0.0009
2024-11-07 2024-09-30 13F MEDIFAST COM 58470H101 232,853 -38,503 -14.19 4,457 -24.73 0.0011
2024-08-09 2024-06-30 13F MEDIFAST COM 58470H101 271,356 -19,167 -6.60 5,921 -46.82 0.0015
2024-05-10 2024-03-31 13F MEDIFAST COM 58470H101 290,523 -20,040 -6.45 11,133 -46.68 0.0030
2024-02-07 2023-12-31 13F MEDIFAST COM 58470H101 310,563 -14,774 -4.54 20,877 -14.27 0.0061
2023-11-09 2023-09-30 13F MEDIFAST COM 58470H101 325,337 -11,960 -3.55 24,353 -21.66 0.0080
2023-08-09 2023-06-30 13F MEDIFAST COM 58470H101 337,297 4,558 1.37 31,085 -9.88 0.0099
2023-05-12 2023-03-31 13F MEDIFAST COM 58470H101 332,739 -2,386 -0.71 34,492 90,668.42 0.0116
2023-02-09 2022-12-31 13F MEDIFAST COM 58470H101 335,125 -1,040 -0.31 39 -99.90 0.0114
2022-11-10 2022-09-30 13F MEDIFAST COM 58470H101 336,165 -3,165 -0.93 36,428 -40.53 0.0140
2022-08-12 2022-06-30 13F MEDIFAST COM 58470H101 339,330 -6,955 -2.01 61,253 3.57 0.0220
2022-05-13 2022-03-31 13F MEDIFAST COM 58470H101 346,285 502 0.15 59,139 -18.34 0.0182
2022-02-09 2021-12-31 13F MEDIFAST COM 58470H101 345,783 -27,840 -7.45 72,418 0.61 0.0219
2021-11-12 2021-09-30 13F MEDIFAST COM 58470H101 373,623 -6,783 -1.78 71,979 -33.13 0.0232
2021-08-12 2021-06-30 13F MEDIFAST COM 58470H101 380,406 -1,059 -0.28 107,645 33.22 0.0341
2021-05-14 2021-03-31 13F MEDIFAST COM 58470H101 381,465 -43,540 -10.24 80,803 -3.16 0.0267
2021-03-08 2020-12-31 13F/A-2 MEDIFAST COM 58470H101 425,005 -25,605 -5.68 83,444 12.61 0.0301
2021-02-11 2020-12-31 13F MEDIFAST COM 58470H101 425,005 -25,605 83,444 30,135.5375
2020-11-12 2020-09-30 13F MEDIFAST COM 58470H101 450,610 -19,681 -4.18 74,100 13.54 0.0314
2020-08-13 2020-06-30 13F MEDIFAST COM 58470H101 470,291 -26,454 -5.33 65,261 110.20 0.0287
2020-05-14 2020-03-31 13F MEDIFAST COM 58470H101 496,745 -28,709 -5.46 31,047 -46.08 0.0162
2020-02-14 2019-12-31 13F MEDIFAST COM 58470H101 525,454 -36,526 -6.50 57,579 -1.13 0.0210
2019-11-12 2019-09-30 13F MEDIFAST COM 58470H101 561,980 -37,194 -6.21 58,236 -24.25 0.0226
2019-08-13 2019-06-30 13F MEDIFAST COM 58470H101 599,174 -37,052 -5.82 76,875 -5.27 0.0298
2019-08-12 2019-03-31 13F/A-2 MEDIFAST COM 58470H101 636,226 -22,396 -3.40 81,151 -1.45 0.0323
2019-05-10 2019-03-31 13F MEDIFAST COM 58470H101 636,226 -22,396 81,151
2019-02-26 2018-12-31 13F/A-1 MEDIFAST COM 58470H101 658,622 -27,392 -3.99 82,341 -45.82 0.0373
2019-02-13 2018-12-31 13F MEDIFAST COM 58470H101 658,622 -27,392 82,341
2018-11-13 2018-09-30 13F MEDIFAST COM 58470H101 686,014 -5,394 -0.78 151,985 37.25 0.0579
2018-08-10 2018-06-30 13F MEDIFAST COM 58470H101 691,408 -2,985 -0.43 110,734 70.65 0.0441
2018-05-11 2018-03-31 13F MEDIFAST COM 58470H101 694,393 -230 -0.03 64,891 33.82 0.0270
2018-02-12 2017-12-31 13F MEDIFAST COM 58470H101 694,623 24,624 3.68 48,492 21.91 0.0201
2017-11-13 2017-09-30 13F MEDIFAST COM 58470H101 669,999 10,103 1.53 39,778 45.36 0.0174
2017-08-11 2017-06-30 13F MEDIFAST COM 58470H101 659,896 27,685 4.38 27,366 -2.44 0.0126
2017-05-12 2017-03-31 13F MEDIFAST COM 58470H101 632,211 21,847 3.58 28,051 10.39 0.0134
2017-02-09 2016-12-31 13F MEDIFAST COM 58470H101 610,364 39,961 7.01 25,410 17.88 0.0127
2016-11-10 2016-09-30 13F MEDIFAST COM 58470H101 570,403 8,268 1.47 21,555 15.26 0.0117
2016-08-09 2016-06-30 13F MEDIFAST COM 58470H101 562,135 57,326 11.36 18,702 22.72 0.0108
2016-05-13 2016-03-31 13F MEDIFAST COM 58470H101 504,809 15,785 3.23 15,240 2.58 0.0091
2016-02-10 2015-12-31 13F MEDIFAST COM 58470H101 489,024 2,167 0.45 14,857 13.61 0.0093
2015-11-13 2015-09-30 13F MEDIFAST COM 58470H101 486,857 6,772 1.41 13,077 -15.72 0.0086
2015-08-14 2015-06-30 13F MEDIFAST COM 58470H101 480,085 3,713 0.78 15,516 8.68 0.0095
2015-05-14 2015-03-31 13F MEDIFAST COM 58470H101 476,372 9,870 2.12 14,277 -8.78 0.0090
2015-02-06 2014-12-31 13F MEDIFAST COM 58470H101 466,502 7,484 1.63 15,651 3.86 0.0103
2014-11-13 2014-09-30 13F MEDIFAST COM 58470H101 459,018 31,243 7.30 15,070 15.84 0.0107
2014-08-08 2014-06-30 13F MEDIFAST COM 58470H101 427,775 54,091 14.48 13,009 19.68 0.0090
2014-05-14 2014-03-31 13F MEDIFAST COM 58470H101 373,684 8,705 2.39 10,870 13.98 0.0081
2014-02-12 2013-12-31 13F MEDIFAST COM 58470H101 364,979 16,023 4.59 9,537 1.63 0.0074
2013-11-13 2013-09-30 13F MEDIFAST COM 58470H101 348,956 18,132 5.48 9,384 10.11 0.0081
2013-08-15 2013-06-30 13F MEDIFAST COM 58470H101 330,824 330,824 8,522 0.0080
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.