13F reference period
Q3 2026
Security Snapshot
MEDIFAST INC - Common Stock, $0.001 par value (MED) Institutional Ownership
CUSIP: 58470H101
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
38
Shares (Excl. Options)
4.02M
Full value: 4,022,296 · shares · 30 Sep 2026Price
$11.52
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common Stock, $0.001 par value
- Symbol
- MED on NYSE
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 4,022,296
- Total 13F value
- $46,337,734
- Portfolio coverage rank
- 0%
- Share change
- +111,980
- Value change
- +$1,445,713
- Number of holders
- 38
- Shares outstanding
- 11,136,521
- SEC-reported price per share
- $11.52
- Insider filing price
- $11.52
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- MED - MEDIFAST INC - Common Stock, $0.001 par value is tracked under CUSIP 58470H101.
- 38 institutions reported positions in Q3 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 110 to 38 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$87.66M
Full value: $87,656,991 · USD · 30 Jun 2026.$46.34M
Full value: $46,337,734 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 38 institutions filings for Q3 2026.
Security key
58470H101
13F reference period
Q3 2026
13F holders
38
13D/G owners
6
CIK / CUSIP context first
Open Q3 2026 holders
MED full holder history
MEDIFAST INC SEC filings
MEDIFAST INC company facts
MEDIFAST INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 58470H101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
Security
MED
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Steamboat Capital Partners, LLC | 7.1% | +18% | $7,622,281 | +$1,283,113 | 790,693 | +20% | Steamboat Capital Partners, LLC | 20 Aug 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 7% | -14% | $8,139,429 | -$1,212,093 | 773,710 | -13% | Renaissance Technologies LLC | 02 Jan 2026 |
| SUSQUEHANNA SECURITIES, LLC | 5.3% | +390% | $6,271,446 | +$4,680,724 | 587,214 | +294% | Susquehanna Portfolio Strategies, LLC | 30 Jun 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.6% | -36% | $4,239,917 | +$4,239,917 | 396,996 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 30 Jun 2026 | |
| BlackRock, Inc. | 2.9% | $3,473,756 | 327,404 | BlackRock, Inc. | 30 Jun 2026 | |||
| Citadel Securities GP LLC | 2.6% | -56% | $3,094,541 | -$4,551,378 | 289,751 | -60% | Kenneth Griffin | 30 Jun 2026 |
As of 30 Sep 2026,
38
institutional investors reported holding
shares of
MEDIFAST INC - Common Stock, $0.001 par value (MED).
This represents
36%
of the company’s total
outstanding shares.
4.02M
Full value: 4,022,296 · shares · 30 Sep 202611.14M
Full value: 11,136,521 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
36%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 7.7% | 858,513 | +10% | 0.01% | $9,890,070 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 446,614 | 0% | 0% | $5,144,993 |
| AMERICAN CENTURY COMPANIES INC | 3.9% | 439,221 | +38% | 0% | $5,059,826 |
| DIMENSIONAL FUND ADVISORS LP | 3.4% | 373,439 | +2.8% | 0% | $4,302,066 |
| MARSHALL WACE, LLP | 3.2% | 352,704 | +46% | 0% | $4,063,150 |
| MORGAN STANLEY | 2.2% | 244,294 | -16% | 0% | $2,814,274 |
| Peapod Lane Capital LLC | 1.9% | 207,502 | -6.8% | 1.8% | $2,390,423 |
| COMMONS CAPITAL, LLC | 1.7% | 184,432 | +23% | 1.4% | $2,124,657 |
| Quinn Opportunity Partners LLC | 1.1% | 127,112 | 0% | 0.08% | $1,464,330 |
| BNP PARIBAS FINANCIAL MARKETS | 1.1% | 124,997 | 0% | $1,439,965 | |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 117,440 | -3% | 0% | $1,353,732 |
| RBF Capital, LLC | 0.75% | 83,244 | -24% | 0.04% | $958,971 |
| FEDERATED HERMES, INC. | 0.74% | 82,786 | +19% | 0% | $953,695 |
| Virtus Family Office LLC | 0.71% | 79,060 | 0% | 0.7% | $910,771 |
| Empowered Funds, LLC | 0.59% | 66,054 | -0.08% | 0% | $760,942 |
| VANGUARD FIDUCIARY TRUST CO | 0.57% | 63,337 | 0% | 0% | $729,642 |
| STATE STREET CORP | 0.49% | 54,855 | +4.8% | 0% | $631,930 |
| Quantinno Capital Management LP | 0.46% | 51,588 | -38% | 0% | $594,294 |
| MAI Capital Management | 0.19% | 21,016 | 0% | $242,104 | |
| LITTLEJOHN FINANCIAL SERVICES, INC. | 0.18% | 19,834 | +43% | 0.17% | $228,488 |
| AXQ CAPITAL, LP | 0.12% | 13,125 | 0.02% | $151,200 | |
| Arax Advisory Partners | 0.04% | 4,080 | -45% | 0% | $47,002 |
| Vanguard Global Advisers, LLC | 0.04% | 3,922 | 0% | 0% | $45,181 |
| GAMMA Investing LLC | 0.01% | 900 | -14% | 0% | $10,368 |
| GROUP ONE TRADING LLC | 0.01% | 700 | 0% | $8,064 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 4,022,296 | $46,337,734 | +$1,445,713 | $11.52 | 38 |
| 2026 Q2 | 8,260,710 | $87,656,991 | -$3,919,385 | $10.61 | 110 |
| 2026 Q1 | 8,602,504 | $87,639,892 | +$5,082,323 | $10.19 | 112 |
| 2025 Q4 | 8,054,031 | $86,511,314 | -$13,371,466 | $10.68 | 108 |
| 2025 Q3 | 9,231,593 | $126,175,997 | +$8,181,617 | $13.67 | 121 |
| 2025 Q2 | 8,622,468 | $121,151,406 | +$5,639,293 | $14.05 | 119 |
| 2025 Q1 | 8,243,161 | $111,111,582 | -$12,305,056 | $13.48 | 122 |
| 2024 Q4 | 8,923,034 | $157,184,942 | -$4,774,951 | $17.62 | 129 |
| 2024 Q3 | 9,163,523 | $175,430,199 | -$26,787,069 | $19.14 | 139 |
| 2024 Q2 | 10,429,064 | $227,557,862 | -$54,011,494 | $21.82 | 157 |
| 2024 Q1 | 11,481,133 | $439,976,756 | +$30,953,025 | $38.32 | 184 |
| 2023 Q4 | 10,327,821 | $694,235,115 | +$41,374,328 | $67.22 | 216 |
| 2023 Q3 | 9,665,221 | $724,203,937 | -$8,659,421 | $74.85 | 222 |
| 2023 Q2 | 9,669,541 | $891,905,428 | -$61,913,795 | $92.16 | 234 |
| 2023 Q1 | 10,234,973 | $1,061,341,644 | +$86,814,952 | $103.67 | 261 |
| 2022 Q4 | 9,414,287 | $1,086,305,314 | -$11,929,284 | $115.35 | 273 |
| 2022 Q3 | 9,527,598 | $1,033,430,006 | -$59,199,848 | $108.36 | 246 |
| 2022 Q2 | 9,687,197 | $1,748,984,608 | -$24,539,021 | $180.51 | 271 |
| 2022 Q1 | 9,926,997 | $1,697,651,687 | +$16,771,177 | $170.78 | 279 |
| 2021 Q4 | 9,781,823 | $2,049,223,135 | -$47,927,471 | $209.43 | 293 |
| 2021 Q3 | 9,994,460 | $1,926,341,111 | -$26,844,446 | $192.64 | 289 |
| 2021 Q2 | 9,961,273 | $2,819,353,209 | +$76,744,435 | $282.98 | 294 |
| 2021 Q1 | 9,730,211 | $2,062,202,677 | -$49,579,570 | $211.82 | 270 |
| 2020 Q4 | 9,997,947 | $1,963,691,126 | -$25,626,899 | $196.34 | 255 |
| 2020 Q3 | 10,066,415 | $1,655,403,260 | -$331,394,781 | $164.45 | 237 |