MEDIFAST INC - MED
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Aug 21, 2026 | SCHEDULE 13D/A | — | — | — | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel Securities GP LLC | 2.1% | 236,447 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel Securities LLC | 2.1% | 233,401 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel Securities Group LP | 2.1% | 236,447 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel Advisors LLC | 0.5% | 53,304 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel Advisors Holdings LP | 0.5% | 53,304 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Citadel GP LLC | 0.5% | 53,304 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Kenneth Griffin | 2.6% | 289,751 | View |
| Aug 14, 2026 | SCHEDULE 13G | Susquehanna Portfolio Strategies, LLC | 5.3% | 587,214 | View |
| Aug 14, 2026 | SCHEDULE 13G | Susquehanna Securities, LLC | 5.3% | 587,214 | View |
| Aug 12, 2026 | SCHEDULE 13G/A | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.6% | 396,996 | View |
| Jul 29, 2026 | SCHEDULE 13G/A | BlackRock, Inc. | 2.9% | 327,404 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel Securities GP LLC | 6.5% | 715,910 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel Securities LLC | 6.5% | 712,864 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel Securities Group LP | 6.5% | 715,910 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel Advisors LLC | 0.0% | 0 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel Advisors Holdings LP | 0.0% | 0 | View |
| May 15, 2026 | SCHEDULE 13G | Citadel GP LLC | 0.0% | 0 | View |
| May 15, 2026 | SCHEDULE 13G | Kenneth Griffin | 6.5% | 715,910 | View |
| May 14, 2026 | SCHEDULE 13G/A | Renaissance Technologies LLC | 6.96% | 773,710 | View |
| May 14, 2026 | SCHEDULE 13G/A | Renaissance Technologies Holdings Corporation | 6.96% | 773,710 | View |
| May 14, 2026 | SCHEDULE 13G/A | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 5.74% | 0 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.