Medifast, Inc.
A maker of meal-replacement and metabolic-health products, Medifast sells its foods and coach-guided programs under the Optavia and Trilivy brands, used by people looking to manage their weight and metabolic health. It was founded in 1980 by Dr. William Vitale, a Baltimore dermatologist who started mixing his own liquid-diet formula after struggling to source products from other providers. The name is a blend of "medical" and "fast," a nod to the medically supervised, quick weight loss the company was built around.
Granted 19.3K · Bought 76.8K
Granted 311.8K · Bought 19.2K
Granted 37.6K · Bought 5.1K · Sold 6.3K
Granted 80.0K
Granted 33.9K · Bought 121.35 · Sold 1.1K
Granted 37.7K · Bought 11.9K · Sold 38.3K
Granted 31.2K
Granted 22.2K · Bought 119.79
Granted 22.6K
Granted 12.9K
Granted 18.4K
Granted 1.4K · Bought 33.83 · Sold 5.6K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Kiai ParsaDirector · 8 transactions | — | 688.4K | 19.3K | 76.8K | — |
| Chard Daniel RChairman & CEO, Director · 45 transactions | — | 483.0K | 311.8K | 19.2K | — |
| Schlackman ScottDirector · 18 transactions | +627.6% | 42.2K | 37.6K | 5.1K | 6.3K |
| Maloney James P.Chief Financial Officer · 24 transactions | +1933.2% | 37.7K | 80.0K | — | — |
| Thomas Andrea BDirector · 12 transactions | +1179.5% | 35.7K | 33.9K | 121.35 | 1.1K |
| Brown Jeffrey JDirector · 38 transactions | — | 33.4Kas of Jun 2025 | 37.7K | 11.9K | 38.3K |
| Geary Elizabeth A.Director · 4 transactions | — | 31.2K | 31.2K | — | — |
| Hoer Michael A.Director · 10 transactions | +591.5% | 26.1Kas of Jun 2025 | 22.2K | 119.79 | — |
| MacKenzie Jonathan BarrettVP, Finance & CAO · 18 transactions | — | 20.8K | 22.6K | — | — |
| Byrnes Kevin GDirector · 4 transactions | +97.1% | 16.1Kas of Nov 2021 | 12.9K | — | — |
| Rose Jeffrey MatthewDirector · 2 transactions | — | 11.7K | 18.4K | — | — |
| Hallquist Constance J.Former Director · 6 transactions | — | 9.9Kas of Oct 2023 | 1.4K | 33.83 | 5.6K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: +62.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.