Security key
58470H101
MEDIFAST INC - Common Stock, $0.001 par value (MED)
CUSIP: 58470H101
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Stock, $0.001 par value
- Total 13F shares
- 8,261,774
- Total 13F value
- $87,668,280
- Share change
- -384,366
- Put/Call ratio
- 11%
- SEC-reported price per share
- $10.61
- Number of holders
- 111
- Value change
- -$3,908,096
- Number of buys
- 68
- Number of sells
- 52
- Shares outstanding
- 11,136,521
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
111
Top holders
10
MED full security history
Ownership snapshot
Full 13F holder table
MEDIFAST INC SEC filings
MEDIFAST INC company facts
Broader feeds
Ownership snapshot
Top reported holders of MED - MEDIFAST INC - Common Stock, $0.001 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
RENAISSANCE TECHNOLOGIES LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7%
13D/G row: RENAISSANCE TECHNOLOGIES LLC
Showing 1-6 of 15 holder rows.
Quick read
RENAISSANCE TECHNOLOGIES LLC leads the comparable SEC ownership view at 7%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens RENAISSANCE TECHNOLOGIES LLC's linked filing trail.
Comparable ownership
Top 5
RENAISSANCE TECHNOLOGIES LLC
7%
SUSQUEHANNA SECURITIES, LLC
5.3%
CHARLES SCHWAB INVESTMENT MANAGEM...
3.6%
BlackRock, Inc.
2.9%
Citadel Securities GP LLC
2.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC |
13D/G
13F
Company
|
7%
|
$8,139,429
773,710 shares
|
-$1,212,093 | 02 Jan 2026 |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
Susquehanna Portfolio Strategies, LLC
|
5.3%
|
$6,271,446
587,214 shares
|
+$4,680,724 | 30 Jun 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
13D/G
Company
|
3.6%
from 13D/G
|
$6,435,382
631,539 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
2.9%
from 13D/G
|
$9,623,975
944,453 shares
|
— | 31 Mar 2026 |
| Citadel Securities GP LLC |
13D/G
Kenneth Griffin
|
2.6%
|
$3,094,541
289,751 shares
|
-$4,551,378 | 30 Jun 2026 |
| Daniel R. Chard |
3/4/5
Chairman & CEO, Director
|
3.2%
|
$3,787,830
355,609 shares
|
+$178,725 | 13 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
111
Shares
8,261,774
Rows available
111
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
112
Q2 2026 holders
111
Holder diff
-1
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|