Medifast, Inc.
US ˙ NYSE ˙ US58470H1014

SecurityMED / Medifast, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Quantbot Technologies LP closes position in MED / Medifast, Inc.

On February 10, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 0 shares of Medifast, Inc. (US:MED) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 2,742 shares of Medifast, Inc.. The current value of the position is $0 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)
2026-02-10 2025-12-31 13F MEDIFAST COM 58470H101 0 -100.00 0
2025-11-12 2025-09-30 13F MEDIFAST COM 58470H101 2,742 2,742 37 0.0010
2024-08-09 2024-06-30 13F MEDIFAST COM 58470H101 0 -13,628 -100.00 0 -100.00
2024-05-06 2024-03-31 13F MEDIFAST COM 58470H101 13,628 8,389 160.13 522 48.30 0.0294
2024-02-14 2023-12-31 13F MEDIFAST COM 58470H101 5,239 5,239 352 0.0205
2023-11-07 2023-09-30 13F MEDIFAST COM 58470H101 0 -11,619 -100.00 0 -100.00
2023-08-08 2023-06-30 13F MEDIFAST COM 58470H101 11,619 164 1.43 1,071 -9.86 0.0701
2023-05-12 2023-03-31 13F MEDIFAST COM 58470H101 11,455 11,455 1,188 0.0840
2021-11-09 2021-09-30 13F MEDIFAST COM 58470H101 0 -520 -100.00 0 -100.00
2021-08-12 2021-06-30 13F MEDIFAST COM 58470H101 520 520 147 0.0116
2021-05-14 2021-03-31 13F MEDIFAST COM 58470H101 0 -35 -100.00 0 -100.00
2021-02-12 2020-12-31 13F MEDIFAST COM 58470H101 35 -3,451 -99.00 6 -98.95 0.0006
2020-11-16 2020-09-30 13F MEDIFAST COM 58470H101 3,486 3,486 9,860.00 573 9,450.00 0.0657
2020-08-13 2020-06-30 13F MEDIFAST COM 58470H101 0 -512 -100.00 0 -100.00
2020-05-13 2020-03-31 13F MEDIFAST COM 58470H101 512 512 32 0.0209
2020-02-10 2019-12-31 13F MEDIFAST COM 58470H101 0 -632 -100.00 0 -100.00
2019-11-12 2019-09-30 13F MEDIFAST COM 58470H101 632 632 65 0.0064
2019-08-13 2019-06-30 13F MEDIFAST COM 58470H101 0 -2,500 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MEDIFAST COM 58470H101 2,500 -8,600 -77.48 318 -77.07 0.0303
2019-02-13 2018-12-31 13F MEDIFAST COM 58470H101 11,100 11,100 344.00 1,387 336.16 0.1358
2018-08-13 2018-06-30 13F MEDIFAST COM 58470H101 0 -38 -100.00 0 -100.00
2018-05-11 2018-03-31 13F MEDIFAST COM 58470H101 38 -985 -96.29 3 -95.77 0.0003
2018-02-12 2017-12-31 13F MEDIFAST COM 58470H101 1,023 1,023 2,592.11 71 2,266.67 0.0066
2017-11-07 2017-09-30 13F MEDIFAST COM 58470H101 0 -600 -100.00 0 -100.00
2017-08-11 2017-06-30 13F MEDIFAST COM 58470H101 600 -352 -36.97 24 -42.86 0.0023
2017-05-10 2017-03-31 13F MEDIFAST COM 58470H101 952 952 58.67 42 75.00 0.0044
2016-04-28 2016-03-31 13F MEDIFAST COM 58470H101 0 0 0 0.0000
2016-01-22 2015-12-31 13F MEDIFAST COM 58470H101 0 -400 -100.00 0 -100.00
2015-10-22 2015-09-30 13F MEDIFAST COM 58470H101 400 200 100.00 10 100.00 0.0017
2013-10-28 2013-09-30 13F MEDIFAST COM 58470H101 200 200 5 0.0031
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.