Medifast, Inc.
US ˙ NYSE ˙ US58470H1014

SecurityMED / Medifast, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership180,081 shares
Latest Disclosed Value $ 1,835,025
Trexquant Investment LP reports 41.84% increase in ownership of MED / Medifast, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 180,081 shares of Medifast, Inc. (US:MED) valued at $1,835,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 126,959 shares of Medifast, Inc.. This represents a change in shares of 41.84% during the quarter. The current value of the position is $2,178,980 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 MEDIFAST COM 58470H101 180,081 53,122 41.84 1,835 35.42 0.0132
2026-02-17 2025-12-31 13F MEDIFAST COM 58470H101 126,959 59,439 88.03 1,356 46.96 0.0121
2025-11-14 2025-09-30 13F MEDIFAST COM 58470H101 67,520 -31,086 -31.53 923 -33.43 0.0095
2025-08-12 2025-06-30 13F MEDIFAST COM 58470H101 98,606 63,069 177.47 1,385 189.14 0.0156
2025-05-14 2025-03-31 13F MEDIFAST COM 58470H101 35,537 -22,767 -39.05 479 -53.36 0.0056
2025-02-12 2024-12-31 13F MEDIFAST COM 58470H101 58,304 -47,206 -44.74 1,027 -49.13 0.0120
2024-11-12 2024-09-30 13F MEDIFAST COM 58470H101 105,510 4,905 4.88 2,019 -8.02 0.0256
2024-08-13 2024-06-30 13F MEDIFAST COM 58470H101 100,605 57,998 136.12 2,195 34.50 0.0335
2024-05-14 2024-03-31 13F MEDIFAST COM 58470H101 42,607 42,607 1,633 0.0325
2023-11-13 2023-09-30 13F MEDIFAST COM 58470H101 0 -11,760 -100.00 0 -100.00
2023-08-11 2023-06-30 13F MEDIFAST COM 58470H101 11,760 11,760 1,084 0.0284
2023-05-15 2023-03-31 13F MEDIFAST COM 58470H101 0 -8,288 -100.00 0 -100.00
2023-02-13 2022-12-31 13F MEDIFAST COM 58470H101 8,288 2,437 41.65 956 50.79 0.0271
2022-11-14 2022-09-30 13F MEDIFAST COM 58470H101 5,851 5,851 634 0.0223
2021-08-12 2021-06-30 13F MEDIFAST COM 58470H101 0 -3,205 -100.00 0 -100.00
2021-05-13 2021-03-31 13F MEDIFAST COM 58470H101 3,205 3,205 679 0.0623
2020-08-07 2020-06-30 13F MEDIFAST COM 58470H101 0 -9,397 -100.00 0 -100.00
2020-05-08 2020-03-31 13F MEDIFAST COM 58470H101 9,397 9,397 587 0.0426
2019-05-13 2019-03-31 13F MEDIFAST COM 58470H101 0 -3,496 -100.00 0 -100.00
2019-02-13 2018-12-31 13F MEDIFAST COM 58470H101 3,496 3,496 437 0.0273
2018-08-07 2018-06-30 13F MEDIFAST COM 58470H101 0 -10,181 -100.00 0 -100.00
2018-05-03 2018-03-31 13F MEDIFAST COM 58470H101 10,181 10,181 951 0.0663
2016-08-10 2016-06-30 13F MEDIFAST COM 58470H101 0 -11,339 -100.00 0 -100.00
2016-05-11 2016-03-31 13F MEDIFAST COM 58470H101 11,339 3,139 38.28 342 37.35 0.0401
2016-02-10 2015-12-31 13F MEDIFAST COM 58470H101 8,200 8,200 249 0.0219
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.