Medifast, Inc.
US ˙ NYSE ˙ US58470H1014

Introduction

This page provides a comprehensive analysis of the known insider trading history of Michael C Macdonald. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Michael C Macdonald has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:MED / Medifast, Inc. Director 266,179
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Michael C Macdonald. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases MED / Medifast, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in MED / Medifast, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MED / Medifast, Inc. Insider Trades
Insider Sales MED / Medifast, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in MED / Medifast, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2019-03-05 MED MACDONALD MICHAEL C 6,607 130.3800 6,607 130.3800 861,421 248 74.3600 -370,123 -42.97
2019-03-05 MED MACDONALD MICHAEL C 2,410 131.4600 2,410 131.4600 316,819
2019-03-05 MED MACDONALD MICHAEL C 2,883 132.5800 2,883 132.5800 382,228
2019-03-05 MED MACDONALD MICHAEL C 500 133.3400 500 133.3400 66,670
2019-03-05 MED MACDONALD MICHAEL C 3,654 130.3900 3,654 130.3900 476,445
2019-03-05 MED MACDONALD MICHAEL C 1,200 131.4400 1,200 131.4400 157,728
2019-03-05 MED MACDONALD MICHAEL C 1,371 132.5600 1,371 132.5600 181,740
2019-03-05 MED MACDONALD MICHAEL C 200 133.3000 200 133.3000 26,660
2018-03-09 MED MACDONALD MICHAEL C 20,000 88.9600 20,000 88.9600 1,779,200
2018-03-08 MED MACDONALD MICHAEL C 20,000 84.4500 20,000 84.4500 1,689,000

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MED / Medifast, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Michael C Macdonald as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2020-10-02 2020-10-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -183 266,179 -0.07 167.13 -30,585 44,486,496
2020-10-02 2020-10-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -624 266,362 -0.23 166.39 -103,827 44,319,973
2020-10-02 2020-10-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -2,784 266,986 -1.03 165.49 -460,724 44,183,513
2020-10-02 2020-10-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -1,232 269,770 -0.45 164.62 -202,812 44,409,537
2020-10-02 2020-10-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -177 271,002 -0.07 163.40 -28,922 44,281,727
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -560 271,179 -0.21 142.35 -79,716 38,602,331
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -584 271,739 -0.21 141.58 -82,683 38,472,808
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -343 272,323 -0.13 140.64 -48,240 38,299,507
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -985 272,666 -0.36 139.47 -137,378 38,028,727
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -628 273,651 -0.23 138.55 -87,009 37,914,346
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -457 274,279 -0.17 137.25 -62,723 37,644,793
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -1,001 274,736 -0.36 136.62 -136,757 37,534,432
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -241 275,737 -0.09 135.45 -32,643 37,348,577
2020-07-06 2020-07-01 4 MED MEDIFAST INC
Common Stock
S - Sale X -201 275,978 -0.07 134.70 -27,075 37,174,237
2020-06-18 2020-06-16 4 MED MEDIFAST INC
Common Stock
A - Award 1,083 276,179 0.39
2020-05-08 2020-05-06 4 MED MEDIFAST INC
Common Stock
S - Sale X -1,800 275,096 -0.65 91.42 -164,556 25,149,276
2020-05-08 2020-05-06 4 MED MEDIFAST INC
Common Stock
S - Sale X -3,200 276,896 -1.14 90.35 -289,120 25,017,554
2020-05-08 2020-01-02 4 MED MEDIFAST INC
Common Stock
S - Sale X -1,448 280,096 -0.51 112.31 -162,625 31,457,582
2020-05-08 2020-01-02 4 MED MEDIFAST INC
Common Stock
S - Sale X -2,412 281,544 -0.85 111.62 -269,227 31,425,941
2020-05-08 2020-01-02 4 MED MEDIFAST INC
Common Stock
S - Sale X -500 283,956 -0.18 110.52 -55,260 31,382,817
2020-05-08 2020-01-02 4 MED MEDIFAST INC
Common Stock
S - Sale X -640 284,456 -0.22 109.40 -70,016 31,119,486
2019-05-28 2019-05-16 4 MED MEDIFAST INC
Common Stock
G - Gift 9,800 9,800
2019-05-28 2019-05-16 4 MED MEDIFAST INC
Common Stock
G - Gift -9,800 285,096 -3.32
2019-04-12 2019-04-10 4 MED MEDIFAST INC
Common Stock
G - Gift -1,175 294,896 -0.40
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -200 296,071 -0.07 133.30 -26,660 39,466,264
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -1,371 296,271 -0.46 132.56 -181,740 39,273,684
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -1,200 297,642 -0.40 131.44 -157,728 39,122,064
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -3,654 298,842 -1.21 130.39 -476,445 38,966,008
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -500 0 -100.00 133.34 -66,670
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -2,883 500 -85.22 132.58 -382,228 66,290
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -2,410 3,383 -41.60 131.46 -316,819 444,729
2019-03-07 2019-03-05 4 MED MEDIFAST INC
Common Stock
S - Sale -6,607 5,793 -53.28 130.38 -861,421 755,291
2019-02-26 2019-02-22 4 MED MEDIFAST INC
Common Stock
A - Award 708 302,496 0.23
2019-02-15 2018-12-03 5/A MED MEDIFAST INC
Common Stock
G - Gift 2,500 12,400 25.25
2019-02-15 2018-12-03 5/A MED MEDIFAST INC
Common Stock
G - Gift -2,500 301,788 -0.82
2019-02-14 2018-11-08 5 MED MEDIFAST INC
Common Stock
G - Gift 4,057 9,900 69.43
2019-02-14 2018-11-08 5 MED MEDIFAST INC
Common Stock
G - Gift -4,057 304,288 -1.32
2019-02-14 2018-10-29 5 MED MEDIFAST INC
Common Stock
G - Gift 5,843 5,843
2019-02-14 2018-10-29 5 MED MEDIFAST INC
Common Stock
G - Gift -5,843 308,345 -1.86
2018-03-13 2018-03-09 4 MED MEDIFAST INC
Common Stock
S - Sale -20,000 314,188 -5.98 88.96 -1,779,200 27,950,164
2018-03-13 2018-03-08 4 MED MEDIFAST INC
Common Stock
S - Sale -20,000 334,188 -5.65 84.45 -1,689,000 28,222,177
2018-02-09 2018-02-07 4 MED MEDIFAST INC
Common Stock
A - Award 1,280 354,188 0.36
2018-02-09 2017-12-31 4 MED MEDIFAST INC
Common Stock
F - Taxes -15,200 352,908 -4.13 69.81 -1,061,112 24,636,507
2017-02-21 2017-02-19 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 368,108 -2.13 45.07 -360,560 16,590,628
2017-02-21 2017-02-16 4 MED MEDIFAST INC
Common Stock
A - Award 15,620 376,108 4.33
2017-02-21 2017-02-16 4 MED MEDIFAST INC
Common Stock
A - Award 38,000 360,488 11.78
2017-01-04 2017-01-02 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 322,488 -2.42 41.63 -333,040 13,425,175
2017-01-04 2016-12-31 4 MED MEDIFAST INC
Common Stock
F - Taxes -9,000 330,488 -2.65 41.63 -374,670 13,758,215
2016-02-23 2016-02-19 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 339,488 -2.30 29.52 -236,160 10,021,686
2016-02-08 2016-02-04 4 MED MEDIFAST INC
Common Stock
A - Award 22,500 347,488 6.92
2016-01-05 2016-01-02 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 324,988 -2.40 30.38 -243,040 9,873,135
2016-01-05 2015-12-31 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 332,988 -2.35 30.38 -243,040 10,116,175
2015-02-23 2015-02-19 4 MED MEDIFAST INC
Common Stock
F - Taxes -5,334 340,988 -1.54 32.50 -173,355 11,082,110
2015-02-19 2015-02-17 4 MED MEDIFAST INC
Common Stock
A - Award 20,000 346,322 6.13
2015-01-05 2015-01-02 4 MED MEDIFAST INC
Common Stock
F - Taxes -8,000 326,322 -2.39 32.24 -257,920 10,520,621
2015-01-05 2014-12-31 4 MED MEDIFAST INC
Common Stock
F - Taxes -12,000 334,322 -3.46 33.55 -402,600 11,216,503
2014-11-03 2014-10-31 4 MED MEDIFAST INC
Common Stock
F - Taxes -7,000 346,322 -1.98 31.74 -222,180 10,992,260
2014-07-02 2014-06-30 4 MED MEDIFAST INC
Common Stock
F - Taxes -7,000 353,322 -1.94 30.41 -212,870 10,744,522
2014-06-19 2014-06-17 4 MED MEDIFAST INC
Common Stock
A - Award 30,000 360,322 9.08
2014-06-19 2014-06-17 4 MED MEDIFAST INC
Common Stock
A - Award 150,000 330,322 83.18
2014-06-19 2014-06-17 4 MED MEDIFAST INC
Common Stock
D - Sale to Issuer -30,000 180,322 -14.26
2014-06-19 2014-06-17 4 MED MEDIFAST INC
Common Stock
D - Sale to Issuer -80,000 210,322 -27.56
2014-06-19 2014-06-17 4 MED MEDIFAST INC
Common Stock
D - Sale to Issuer -70,000 290,322 -19.43
2014-06-19 2014-03-25 4 MED MEDIFAST INC
Common Stock
F - Taxes -2,334 360,322 -0.64 28.97 -67,616 10,438,528
2014-06-19 2014-02-05 4 MED MEDIFAST INC
Common Stock
A - Award 30,000 362,656 9.02
2014-06-19 2013-02-19 4 MED MEDIFAST INC
Common Stock
A - Award 100,000 332,656 42.98
2014-06-19 2013-01-02 4 MED MEDIFAST INC
Common Stock
A - Award 100,000 232,656 75.38
2013-03-14 2011-10-31 5 MED MEDIFAST INC
Common Stock
A - Award 60,000 132,656 82.58 16.44 986,400 2,180,865
2013-03-14 2011-06-20 5 MED MEDIFAST INC
Common Stock
A - Award 1,393 72,656 1.95 22.40 31,203 1,627,494
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)