Quick Takeaways
- MED - MEDIFAST INC has 12 insiders with reported activity on this page.
- Net insider value flow over the last year: +$183,727.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 12 Insiders of MEDIFAST INC
- Symbol
- MED on NYSE
- Location
- Baltimore, MD
What Changed
- Buy value: $183,727; sell value: $0.
- Net share flow: +18,059.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to buying over the last 12 months. Net value: +$183,727.
Buys
$183,727
Shares: 18,059
Insiders: 1
Sells
$0
Shares: 0
Insiders: 0
Net
+$183,727
Shares: +18,059
Insiders: 1
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 17,678 | 0 | $178,725 | $0 | +$178,725 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 381 | 0 | $5,003 | $0 | +$5,003 |
MEDIFAST INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Daniel R. Chard | Chairman & CEO, Director | $3,787,830 | +$183,727 | +5.1% | Mixed | 13 Mar 2026 |
| Kevin G. Byrnes | Director | $1,027,977 | Mixed | 11 Nov 2021 | ||
| James P. Maloney | Chief Financial Officer | $779,992 | Mixed | 13 Mar 2026 | ||
| Jeffrey J. Brown | Director | $573,487 | Mixed | 25 Jun 2025 | ||
| Ming Xian | Director | $430,393 | Mixed | 25 Jun 2025 | ||
| Michael A. Hoer | Director | $351,575 | Mixed | 25 Jun 2025 | ||
| Scott Schlackman | Director | $343,630 | Mixed | 25 Jun 2025 | ||
| Andrea B. Thomas | Director | $323,030 | Mixed | 25 Jun 2025 | ||
| Elizabeth A. Geary | Director | $262,880 | Mixed | 25 Jun 2025 | ||
| Jonathan Barrett MacKenzie | VP, Finance & CAO | $222,549 | Mixed | 13 Mar 2026 | ||
| Nicholas Mark Johnson | President | $195,833 | Mixed | 05 Jan 2026 | ||
| Constance J. Hallquist | Former Director | $148,251 | Mixed | 06 Oct 2023 |
Top shareholders of MEDIFAST INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC |
13D/G
13F
|
Company |
8.1%
|
888,928
|
$11,182,714 | -$1,475,408 | 02 Jan 2025 | |
| BlackRock, Inc. |
13F
|
Company |
8.3%
|
914,793
|
$9,769,990 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13D/G
13F
|
Company |
7.1%
|
776,829
|
$9,081,131 | +$2,123,114 | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
6.5%
|
711,499
|
$7,598,810 | — | 31 Dec 2025 | |
| Steamboat Capital Partners, LLC |
13D/G
13F
|
Company |
6%
|
657,590
|
$6,858,664 | $0 | 13 Mar 2026 | |
| Lido Advisors, LLC |
13F
|
Company |
3%
|
330,703
|
$4,026,301 | — | 31 Dec 2025 | |
| Daniel R. Chard |
3/4/5
|
Chairman & CEO, Director |
3.2%
|
355,609
|
$3,787,830 | +$183,727 | 13 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
3.1%
|
334,858
|
$3,576,292 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
3%
|
326,240
|
$3,484,155 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.3%
|
247,449
|
$2,643,427 | — | 31 Dec 2025 | |
| Man Group plc |
13F
|
Company |
2.2%
|
236,500
|
$2,525,820 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2%
|
221,700
|
$2,367,756 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
2%
|
219,118
|
$2,340,180 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
2%
|
217,822
|
$2,326,339 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.7%
|
180,863
|
$1,931,617 | — | 31 Dec 2025 | |
| SUSQUEHANNA SECURITIES, LLC |
13D/G
|
G1 Execution Services, LLC |
1.4%
|
148,944
|
$1,741,155 | -$5,915,152 | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
1.4%
|
157,778
|
$1,683,000 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.2%
|
131,509
|
$1,404,516 | — | 31 Dec 2025 | |
| Quinn Opportunity Partners LLC |
13F
|
Company |
1.2%
|
127,112
|
$1,357,556 | — | 31 Dec 2025 | |
| Trexquant Investment LP |
13F
|
Company |
1.2%
|
126,959
|
$1,355,922 | — | 31 Dec 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
117,939
|
$1,259,589 | — | 31 Dec 2025 | |
| PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. |
13F
|
Company |
1%
|
111,244
|
$1,188,086 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.94%
|
102,900
|
$1,098,972 | — | 31 Dec 2025 | |
| Peapod Lane Capital LLC |
13F
|
Company |
0.93%
|
101,567
|
$1,084,736 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.89%
|
97,473
|
$1,041,012 | — | 31 Dec 2025 | |
| Kevin G. Byrnes |
3/4/5
|
Director |
—
class O/S missing
|
14,922
|
$1,027,977 | — | 11 Nov 2021 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.8%
|
87,662
|
$936,230 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.73%
|
80,340
|
$858,031 | — | 31 Dec 2025 | |
| Divisadero Street Capital Management, LP |
13F
|
Company |
0.73%
|
79,839
|
$852,681 | — | 31 Dec 2025 | |
| Virtus Family Office LLC |
13F
|
Company |
0.72%
|
79,060
|
$844,361 | — | 31 Dec 2025 | |
| James P. Maloney |
3/4/5
|
Chief Financial Officer |
0.67%
|
73,033
|
$779,992 | — | 13 Mar 2026 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
0.6%
|
65,419
|
$698,674 | — | 31 Dec 2025 | |
| SummerHaven Investment Management, LLC |
13F
|
Company |
0.53%
|
58,056
|
$620,038 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.5%
|
54,380
|
$580,778 | — | 31 Dec 2025 | |
| Jeffrey J. Brown |
3/4/5
|
Director |
0.39%
|
42,811
|
$573,487 | — | 25 Jun 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.48%
|
52,859
|
$564,534 | — | 31 Dec 2025 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.45%
|
48,807
|
$521,259 | — | 31 Dec 2025 | |
| Empowered Funds, LLC |
13F
|
Company |
0.41%
|
44,773
|
$478,176 | — | 31 Dec 2025 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
0.4%
|
44,050
|
$470,454 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.37%
|
40,438
|
$431,878 | — | 31 Dec 2025 | |
| Ming Xian |
3/4/5
|
Director |
—
class O/S missing
|
32,143
|
$430,393 | — | 25 Jun 2025 | |
| FMR LLC |
13F
|
Company |
0.35%
|
38,401
|
$410,121 | — | 31 Dec 2025 | |
| COMMONS CAPITAL, LLC |
13F
|
Company |
0.35%
|
38,000
|
$405,840 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.34%
|
37,607
|
$401,643 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.34%
|
37,256
|
$397,900 | — | 31 Dec 2025 | |
| Michael A. Hoer |
3/4/5
|
Director |
0.24%
|
26,139
|
$351,575 | — | 25 Jun 2025 | |
| Scott Schlackman |
3/4/5
|
Director |
0.23%
|
25,549
|
$343,630 | — | 25 Jun 2025 | |
| Andrea B. Thomas |
3/4/5
|
Director |
0.22%
|
24,017
|
$323,030 | — | 25 Jun 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.25%
|
27,320
|
$291,778 | — | 31 Dec 2025 | |
| Verition Fund Management LLC |
13F
|
Company |
0.23%
|
24,842
|
$265,313 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for MEDIFAST INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Jonathan Barrett MacKenzie | MED | Common Stock | Award | 108.2% | 10,830 | 20,838 | 25 Mar 2026 | Direct | ||
| Jonathan Barrett MacKenzie | MED | Common Stock | Tax liability | -7.93% | -862 | 10,008 | 25 Mar 2026 | Direct | ||
| James P. Maloney | MED | Common Stock | Award | 93.8% | 35,358 | 73,033 | 25 Mar 2026 | Direct | ||
| James P. Maloney | MED | Common Stock | Tax liability | -7.88% | -3,224 | 37,675 | 25 Mar 2026 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Award | 28.5% | 41,795 | 188,233 | 25 Mar 2026 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Tax liability | -12.1% | -20,095 | 146,438 | 25 Mar 2026 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Purchase | $178,725 | $10.11 | 17,678 | 17,678 | 20 Mar 2026 | Dan and Allyson as Joint Tenants | |
| Jonathan Barrett MacKenzie | MED | Common Stock | Tax liability | -0.64% | -70 | 10,870 | 17 Mar 2026 | Direct | ||
| James P. Maloney | MED | Common Stock | Tax liability | -1.16% | -482 | 40,899 | 17 Mar 2026 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Tax liability | -1.56% | -2,638 | 166,533 | 17 Mar 2026 | Direct | ||
| Jonathan Barrett MacKenzie | MED | Common Stock | Tax liability | -1.78% | -198 | 10,940 | 13 Mar 2026 | Direct | ||
| James P. Maloney | MED | Common Stock | Tax liability | -2.17% | -918 | 41,381 | 13 Mar 2026 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Tax liability | -4.01% | -7,075 | 169,171 | 13 Mar 2026 | Direct | ||
| Ming Xian | MED | Restricted Stock Units (cash settled) | Award | 114.8% | 17,181 | 32,143 | 25 Jun 2025 | Direct | ||
| Scott Schlackman | MED | Common Stock | Award | 77.7% | 11,168 | 25,549 | 25 Jun 2025 | Direct | ||
| Andrea B. Thomas | MED | Common Stock | Award | 86.9% | 11,168 | 24,017 | 25 Jun 2025 | Direct | ||
| Michael A. Hoer | MED | Common Stock | Award | 74.6% | 11,168 | 26,139 | 25 Jun 2025 | Direct | ||
| Elizabeth A. Geary | MED | Common Stock | Award | 133.3% | 11,168 | 19,545 | 25 Jun 2025 | Direct | ||
| Jeffrey J. Brown | MED | Common Stock | Award | 114.8% | 20,617 | 38,578 | 25 Jun 2025 | Direct | ||
| Daniel R. Chard | MED | Common Stock | Purchase | 0.26% | $5,003 | $13.13 | 381 | 149,698 | 13 Jun 2025 | The Dan and Allyson Family Irrevocable Trust |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.