Renaissance Technologies (RenTech)'s MED Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 773,710 shares of Medifast, Inc. (MED) worth $7.88 M, representing 0.01% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 52 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in MED, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2019, adding 232,300 shares. Largest reduction occurred in Q2 2019, reducing 160,085 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Medifast (MED) Holding Value Over Time
Track share changes against reported price movement
Quarterly Medifast (MED) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -6,900 | Reduce 0.88% | 773,710 | $10.19 |
| Q4 2025 | -20,300 | Reduce 2.53% | 780,610 | $10.68 |
| Q3 2025 | -12,400 | Reduce 1.52% | 800,910 | $13.67 |
| Q2 2025 | -75,618 | Reduce 8.51% | 813,310 | $14.05 |
| Q1 2025 | -14,806 | Reduce 1.64% | 888,928 | $13.48 |
| Q4 2024 | -102,476 | Reduce 10.18% | 903,734 | $17.62 |
| Q3 2024 | +47,600 | Add 4.97% | 1.01 M | $19.14 |
| Q2 2024 | +161,487 | Add 20.26% | 958,610 | $21.82 |
| Q1 2024 | +39,513 | Add 5.22% | 797,123 | $38.32 |
| Q4 2023 | +3,400 | Add 0.45% | 757,610 | $67.22 |
| Q3 2023 | +73,600 | Add 10.81% | 754,210 | $74.85 |
| Q2 2023 | +29,600 | Add 4.55% | 680,610 | $0.09 |
| Q1 2023 | +18,900 | Add 2.99% | 651,010 | $0.10 |
| Q4 2022 | -51,700 | Reduce 7.56% | 632,110 | $0.12 |
| Q3 2022 | -76,600 | Reduce 10.07% | 683,810 | $108.36 |
| Q2 2022 | -10,900 | Reduce 1.41% | 760,410 | $180.51 |
| Q1 2022 | -26,300 | Reduce 3.30% | 771,310 | $170.78 |
| Q4 2021 | -43,300 | Reduce 5.15% | 797,610 | $209.43 |
| Q3 2021 | -54,300 | Reduce 6.07% | 840,910 | $192.64 |
| Q2 2021 | +800 | Add 0.09% | 895,210 | $282.98 |
| Q1 2021 | -116,100 | Reduce 11.49% | 894,410 | $211.82 |
| Q4 2020 | +21,000 | Add 2.12% | 1.01 M | $196.34 |
| Q3 2020 | +73,600 | Add 8.04% | 989,510 | $164.45 |
| Q2 2020 | +22,000 | Add 2.46% | 915,910 | $138.77 |
| Q1 2020 | -39,305 | Reduce 4.21% | 893,910 | $62.50 |
| Q4 2019 | +10,600 | Add 1.15% | 933,215 | $109.58 |
| Q3 2019 | +232,300 | Add 33.65% | 922,615 | $103.63 |
| Q2 2019 | -160,085 | Reduce 18.82% | 690,315 | $128.30 |
| Q1 2019 | -139,600 | Reduce 14.10% | 850,400 | $127.55 |
| Q4 2018 | +31,600 | Add 3.30% | 990,000 | $125.02 |
| Q3 2018 | -34,666 | Reduce 3.49% | 958,400 | $221.55 |
| Q2 2018 | +466 | Add 0.05% | 993,066 | $160.16 |
| Q1 2018 | +36,200 | Add 3.79% | 992,600 | $93.45 |
| Q4 2017 | -700 | Reduce 0.07% | 956,400 | $69.81 |
| Q3 2017 | +1,000 | Add 0.10% | 957,100 | $59.37 |
| Q2 2017 | +2,100 | Add 0.22% | 956,100 | $41.47 |
| Q1 2017 | +2,500 | Add 0.26% | 954,000 | $44.37 |
| Q4 2016 | +4,300 | Add 0.45% | 951,500 | $41.63 |
| Q3 2016 | -6,400 | Reduce 0.67% | 947,200 | $37.79 |
| Q2 2016 | +125,700 | Add 15.18% | 953,600 | $33.27 |
| Q1 2016 | +81,600 | Add 10.93% | 827,900 | $30.19 |
| Q4 2015 | +157,800 | Add 26.81% | 746,300 | $30.38 |
| Q3 2015 | +43,575 | Add 8.00% | 588,500 | $26.86 |
| Q2 2015 | +164,825 | Add 43.36% | 544,925 | $32.32 |
| Q1 2015 | +72,300 | Add 23.49% | 380,100 | $29.97 |
| Q4 2014 | +71,600 | Add 30.31% | 307,800 | $33.55 |
| Q3 2014 | +71,200 | Add 43.15% | 236,200 | $32.83 |
| Q2 2014 | -95,684 | Reduce 36.70% | 165,000 | $30.41 |
| Q1 2014 | -79,716 | Reduce 23.42% | 260,684 | $29.09 |
| Q4 2013 | -37,300 | Reduce 9.88% | 340,400 | $26.13 |
| Q3 2013 | +21,700 | Add 6.10% | 377,700 | $26.89 |
| Q2 2013 | +356,000 | Add 0.00% | 356,000 | $25.76 |
Renaissance Technologies (RenTech)'s Medifast Investment FAQs
Renaissance Technologies (RenTech) first purchased Medifast, Inc. (MED) in Q2 2013, acquiring 356,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Medifast, Inc. (MED) for 52 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to Medifast, Inc. (MED) was in Q2 2013, adding 356,000 shares worth $9.17 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 773,710 shares of Medifast, Inc. (MED), valued at approximately $7.88 M.
As of the Q1 2026 filing, Medifast, Inc. (MED) represents approximately 0.01% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Medifast, Inc. (MED) was 1,010,510 shares, as reported at the end of Q4 2020.