Introduction

This page provides a comprehensive analysis of the known insider trading history of Mark Lantrip. 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 Mark Lantrip has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:SO / The Southern Company Chairman, President & CEO, SCS 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Mark Lantrip. 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 Trading History

This table shows the complete list of insider trades made by Mark Lantrip 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
2021-03-02 2021-02-27 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,635 0 -100.00
2021-03-02 2021-02-27 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,367 71,568 -1.87 56.72 -77,536 4,059,328
2021-03-02 2021-02-27 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 3,014 72,935 4.31
2021-02-17 2021-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -17,092 69,921 -19.64 60.10 -1,027,229 4,202,243
2021-02-17 2021-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 37,687 87,013 76.40
2021-02-16 2021-02-11 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,535 2,536 -49.99
2021-02-16 2021-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,253 49,326 -2.48 61.29 -76,796 3,023,181
2021-02-16 2021-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,761 50,579 5.77
2021-02-05 2021-02-03 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -1,893 3,786 -33.33
2021-02-05 2021-02-03 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -968 47,818 -1.98 59.45 -57,548 2,842,771
2021-02-05 2021-02-03 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 1,975 48,786 4.22
2020-03-02 2020-02-27 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,634 2,635 -49.99
2020-03-02 2020-02-27 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,299 43,120 -2.92 62.88 -81,681 2,711,360
2020-03-02 2020-02-27 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,863 44,419 6.89
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,255 0 -100.00
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Southern Co Restricted Stock Units
M - Exercise -678 0 -100.00
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -355 41,556 -0.85 69.54 -24,687 2,889,776
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 781 41,911 1.90
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,177 41,130 -2.78 69.54 -81,849 2,860,152
2020-02-18 2020-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,593 42,307 6.53
2020-02-13 2020-02-11 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,536 5,071 -33.34
2020-02-13 2020-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,217 39,714 -2.97 68.59 -83,474 2,723,955
2020-02-13 2020-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,649 40,931 6.92
2020-02-13 2020-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -11,013 38,282 -22.34 68.59 -755,382 2,625,734
2020-02-13 2020-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 24,282 49,295 97.08
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,255 2,255 -50.00
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Southern Co Restricted Stock Units
M - Exercise -677 678 -49.96
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -339 24,919 -1.34 49.22 -16,686 1,226,514
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 745 25,258 3.04
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,127 24,513 -4.40 49.22 -55,471 1,206,531
2019-02-15 2019-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,483 25,640 10.72
2019-02-13 2019-02-12 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise X -33,000 32,909 -50.07
2019-02-13 2019-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -33,000 23,157 -58.76 49.50 -1,633,500 1,146,273
2019-02-13 2019-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 33,000 56,157 142.51 41.28 1,362,240 2,318,162
2019-02-13 2019-02-11 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,634 5,269 -33.33
2019-02-13 2019-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -9,720 23,157 -29.56 49.24 -478,613 1,140,252
2019-02-13 2019-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 21,962 32,877 201.21
2019-02-13 2019-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -1,206 10,915 -9.95 49.24 -59,383 537,456
2019-02-13 2019-02-11 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,741 12,121 29.22
2018-12-06 2018-12-04 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -9,000 9,380 -48.97 47.58 -428,207 446,289
2018-09-10 2018-09-06 4 SO SOUTHERN CO
Phantom Stock Units
I - Other -15,268 0 -100.00 44.66 -681,865
2018-02-14 2018-02-13 4 SO SOUTHERN CO
Southern Co Restricted Stock Units
M - Exercise -677 1,355 -33.32
2018-02-14 2018-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -216 18,380 -1.16 44.62 -9,638 820,117
2018-02-14 2018-02-13 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 707 18,596 3.95
2018-02-14 2018-02-12 4 SO SOUTHERN CO
Performance Restricted Stock Units
M - Exercise -2,256 4,510 -33.34
2018-02-14 2018-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -4,438 17,889 -19.88 44.68 -198,290 799,282
2018-02-14 2018-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 14,633 22,327 190.19
2018-02-14 2018-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -776 7,694 -9.16 44.68 -34,672 343,769
2018-02-14 2018-02-12 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 2,359 8,470 38.60
2017-06-15 2017-06-14 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise X -25,000 65,909 -27.50
2017-06-15 2017-06-14 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale X -25,000 6,080 -80.44 51.50 -1,287,500 313,100
2017-06-15 2017-06-14 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise X 25,000 31,080 411.21 41.28 1,032,000 1,282,966
2017-02-15 2017-02-13 4 SO SOUTHERN CO
Southern Co Restricted Stock Units
A - Award 2,032 2,032
2016-07-06 2016-07-05 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise X -35,884 0 -100.00
2016-07-06 2016-07-05 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -35,884 6,050 -85.57 54.00 -1,937,736 326,698
2016-07-06 2016-07-05 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 35,884 41,934 593.13 44.42 1,593,967 1,862,706
2016-01-20 2016-01-19 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise X -35,647 0 -100.00
2016-01-20 2016-01-19 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -35,647 6,021 -85.55 48.00 -1,711,056 289,001
2016-01-20 2016-01-19 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 35,647 41,668 592.06 37.97 1,353,517 1,582,128
2016-01-15 2016-01-13 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -511 6,021 -7.82 46.80 -23,915 281,776
2016-01-15 2016-01-13 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 1,322 6,532 25.37 46.80 61,870 305,691
2015-01-14 2015-01-12 4 SO SOUTHERN CO
Southern Company Common Stock
F - Taxes -235 1,181 -16.59 49.71 -11,682 58,713
2015-01-14 2015-01-12 4 SO SOUTHERN CO
Southern Company Common Stock
A - Award 608 1,416 75.24 49.71 30,224 70,395
2014-12-29 2014-12-26 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 61 12,386 0.49 50.47 3,073 625,138
2014-12-15 2014-12-12 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 64 12,325 0.52 47.92 3,073 590,635
2014-12-01 2014-11-28 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 65 12,261 0.53 47.43 3,073 581,554
2014-11-17 2014-11-14 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 66 12,197 0.54 46.64 3,073 568,846
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Option Right To Buy
M - Exercise -32,204 0 -100.00
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise -28,395 0 -100.00
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise -14,411 0 -100.00
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise -10,612 0 -100.00
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Option Right to Buy
M - Exercise -10,167 0 -100.00
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -32,204 799 -97.58 47.06 -1,515,585 37,617
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 32,204 33,003 4,028.98 31.17 1,003,799 1,028,713
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -28,395 799 -97.26 47.06 -1,336,325 37,617
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 28,395 29,194 3,552.44 31.39 891,319 916,409
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -14,411 799 -94.74 47.06 -678,210 37,617
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 14,411 15,210 1,802.93 35.78 515,626 544,225
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -10,612 799 -93.00 47.06 -499,422 37,617
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 10,612 11,411 1,327.65 36.42 386,489 415,600
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
S - Sale -10,167 799 -92.71 47.06 -478,479 37,617
2014-11-10 2014-11-07 4 SO SOUTHERN CO
Southern Company Common Stock
M - Exercise 10,167 10,966 1,271.97 33.81 343,746 370,771
2014-11-03 2014-10-31 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 66 12,131 0.55 46.36 3,073 562,377
2014-10-20 2014-10-17 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 66 12,064 0.55 46.22 3,073 557,615
2014-10-06 2014-10-03 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,998 0.58 44.14 3,073 529,586
2014-09-22 2014-09-19 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,928 0.59 43.69 3,073 521,145
2014-09-08 2014-09-05 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 69 11,858 0.58 44.79 3,073 531,116
2014-08-25 2014-08-22 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,789 0.60 43.68 3,073 514,957
2014-08-11 2014-08-08 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 71 11,719 0.61 43.53 3,073 510,126
2014-07-28 2014-07-25 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 69 11,648 0.59 44.74 3,073 521,148
2014-07-14 2014-07-11 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 69 11,580 0.60 44.53 3,073 515,643
2014-06-30 2014-06-27 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 68 11,511 0.60 45.06 3,073 518,670
2014-06-16 2014-06-13 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 71 11,442 0.62 43.53 3,073 498,091
2014-06-02 2014-05-30 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,372 0.62 43.78 3,073 497,860
2014-05-19 2014-05-16 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 71 11,302 0.63 43.51 3,073 491,736
2014-05-05 2014-05-02 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,231 0.62 44.18 3,073 496,188
2014-04-22 2014-04-21 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 68 11,161 0.61 45.16 3,073 504,053
2014-04-07 2014-04-04 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 70 11,093 0.64 43.70 3,073 484,784
2014-03-24 2014-03-21 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 72 11,023 0.65 42.92 3,073 473,113
2014-03-10 2014-03-07 4 SO SOUTHERN CO
Phantom Stock Units
A - Award 61 10,952 0.56 42.10 2,577 461,059
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
13,501
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
10,274
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
14,237
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
13,501
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
10,274
2014-03-03 3 SO SOUTHERN CO
Southern Company Common Stock
14,237
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)