Security key
58470H101
MEDIFAST INC - Common Stock, $0.001 par value (MED)
CUSIP: 58470H101
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock, $0.001 par value
- Total 13F shares
- 1,547
- Total 13F value
- $17,821
- Share change
- -89,303
- SEC-reported price per share
- $11.52
- Number of holders
- 6
- Value change
- -$949,063
- Number of sells
- 11
- Shares outstanding
- 11,136,521
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
6
Top holders
6
MED full security history
Ownership snapshot
Full 13F holder table
MEDIFAST INC SEC filings
MEDIFAST INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 58470H101
Recent filing periods:
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
Steamboat Capital Partner...
Disclosed value leader
RENAISSANCE TECHNOLOGIES LLC
Comparable rows
6/15
Latest evidence
28 Sep 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.1%
9 rows are not safely comparable across share classes.
13D/G row: Steamboat Capital Partners, LLC
Showing 1-6 of 15 holder rows.
Quick read
Steamboat Capital Partners, LLC leads the comparable SEC ownership view at 7.1%.
6 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 Steamboat Capital Partners, LLC's linked filing trail.
Comparable ownership
Top 5
Steamboat Capital Partners, LLC
7.1%
RENAISSANCE TECHNOLOGIES LLC
7%
SUSQUEHANNA SECURITIES, LLC
5.3%
CHARLES SCHWAB INVESTMENT MANAGEM...
3.6%
BlackRock, Inc.
2.9%
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 |
|---|---|---|---|---|---|
| Steamboat Capital Partners, LLC |
13D/G
13F
Company
|
7.1%
Reported 13D/G
· 20 Aug 2026
|
$7,622,281
790,693 shares
|
+$1,283,113 | 20 Aug 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
13D/G
Company
|
7%
Reported 13D/G
· 02 Jan 2026
|
$8,261,052
778,610 shares
|
— | 30 Jun 2026 |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
Susquehanna Portfolio Strategies, LLC
|
5.3%
Reported 13D/G
· 30 Jun 2026
|
$6,271,446
587,214 shares
|
+$4,680,724 | 30 Jun 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13D/G
13F
Company
|
3.6%
Reported 13D/G
· 30 Jun 2026
|
$4,239,917
396,996 shares
|
+$4,239,917 | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
2.9%
Reported 13D/G
· 30 Jun 2026
|
$3,920,427
369,503 shares
|
— | 30 Jun 2026 |
| Citadel Securities GP LLC |
13D/G
Kenneth Griffin
|
2.6%
Reported 13D/G
· 30 Jun 2026
|
$3,094,541
289,751 shares
|
-$4,551,378 | 30 Jun 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 Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
6
Shares
1,547
Rows available
6
| 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 Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
110
Q3 2026 holders
6
Holder diff
-104
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend