GameStop Corp.
US ˙ NYSE ˙ US36467W1099

Introduction

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

Security Title Latest Reported Holdings
US:GME / GameStop Corp. Chief Executive Officer, Director 346,353
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 Mauler. 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 GME / GameStop Corp. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in GME / GameStop Corp.. 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 (%)
2016-09-15 GME Mauler Michael 10,000 26.9090 40,000 6.7272 269,090 7 7.0675 13,610 5.06

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

GME / GameStop Corp. Insider Trades
Insider Sales GME / GameStop Corp. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in GME / GameStop Corp.. 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 (%)
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.

GME / GameStop Corp. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Michael Mauler 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
2018-04-16 2018-04-12 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -7,903 346,353 -2.23 13.48 -106,532 4,668,838
2018-04-16 2018-04-12 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -6,637 354,256 -1.84
2018-02-27 2018-02-23 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 109,590 360,893 43.61 15.97 1,750,152 5,763,461
2018-02-27 2018-02-23 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 109,590 360,893 43.61 15.97 1,750,152 5,763,461
2017-04-04 2017-03-31 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -7,453 141,713 -5.00 22.46 -167,394 3,182,874
2017-04-04 2017-03-31 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -6,736 149,166 -4.32
2017-04-04 2017-03-31 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -7,800 155,902 -4.76
2017-03-07 2017-03-03 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 21,390 163,702 15.03 25.28 540,739 4,138,387
2017-03-07 2017-03-03 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 21,390 163,702 15.03 25.28 540,739 4,138,387
2016-09-16 2016-09-15 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
P - Purchase 10,000 120,922 9.02 26.91 269,090 3,253,890
2016-06-27 2016-06-23 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -6,178 110,922 -5.28 26.33 -162,667 2,920,576
2016-04-11 2016-04-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -4,583 117,100 -3.77 29.12 -133,457 3,409,952
2016-04-11 2016-04-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -1,813 121,683 -1.47
2016-04-11 2016-04-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 645 123,496 0.53 29.12 18,782 3,596,204
2016-03-09 2016-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,299 122,851 -1.05 30.74 -39,931 3,776,440
2016-03-08 2016-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,365 124,150 -1.09 31.23 -42,629 3,877,204
2016-03-01 2016-02-26 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 17,700 125,515 16.42 30.54 540,558 3,833,228
2016-03-01 2016-02-26 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 17,700 125,515 16.42 30.54 540,558 3,833,228
2016-02-24 2016-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -2,304 90,115 -2.49 29.21 -67,300 2,632,259
2015-09-23 2015-09-21 4 GME GameStop Corp.
Stock Option (Right to Buy)
M - Exercise -14,070 14,070 -50.00
2015-09-23 2015-09-21 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -21,021 92,419 -18.53 41.97 -882,176 3,878,493
2015-09-23 2015-09-21 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
M - Exercise 14,070 113,440 14.16 24.82 349,217 2,815,581
2015-04-13 2015-04-10 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -2,350 99,370 -2.31 40.18 -94,423 3,992,687
2015-04-13 2015-04-09 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -17,650 101,720 -14.79 40.00 -706,000 4,068,800
2015-04-01 2015-03-30 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -900 119,370 -0.75 37.69 -33,921 4,499,055
2015-04-01 2015-03-30 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -1,365 120,268 -1.12
2015-04-01 2015-03-30 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -4,418 121,633 -3.50 37.69 -166,514 4,584,348
2015-04-01 2015-03-30 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -1,290 126,051 -1.01
2015-04-01 2015-03-30 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -63,800 127,341 -33.38
2015-03-10 2015-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -712 191,141 -0.37 40.16 -28,594 7,676,223
2015-03-10 2015-03-06 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 14,970 191,853 8.46 40.16 601,195 7,704,816
2015-03-10 2015-03-06 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 14,970 191,853 8.46 40.16 601,195 7,704,816
2015-02-24 2015-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -2,233 161,913 -1.36 37.49 -83,715 6,070,118
2015-02-10 2015-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -3,357 164,146 -2.00 36.76 -123,403 6,034,007
2014-09-23 2014-09-19 4 GME GameStop Corp.
Stock Option (Right to Buy)
M - Exercise X -14,070 28,140 -33.33
2014-09-23 2014-09-19 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -24,070 167,503 -12.56 43.63 -1,050,124 7,307,804
2014-09-23 2014-09-19 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
M - Exercise X 14,070 191,573 7.93 24.82 349,217 4,754,842
2014-04-04 2014-04-02 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,733 177,503 -0.97 43.37 -75,160 7,698,305
2014-04-04 2014-04-02 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 303 179,236 0.17
2014-04-01 2014-03-31 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -6,000 178,933 -3.24 40.50 -243,027 7,247,592
2014-03-11 2014-03-07 4 GME GameStop Corp.
Stock Option (Right to Buy)
A - Award 24,270 24,270
2014-03-11 2014-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 7,800 184,933 4.40
2014-03-11 2014-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 7,800 184,933 4.40
2014-03-11 2014-03-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 7,800 184,933 4.40
2014-02-25 2014-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,243 161,533 -0.76 35.56 -44,201 5,744,113
2014-02-11 2014-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -3,294 162,776 -1.98 35.50 -116,937 5,778,548
2014-02-05 2014-02-02 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,397 166,070 -0.83 35.07 -48,993 5,824,075
2014-01-21 2014-01-16 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -6,000 167,467 -3.46 38.00 -228,000 6,363,746
2013-11-27 2013-11-25 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -12,000 173,467 -6.47 50.32 -603,786 8,728,079
2013-09-24 2013-09-20 4 GME GameStop Corp.
Stock Option (Right to Buy)
M - Exercise X -38,000 0 -100.00
2013-09-24 2013-09-20 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
S - Sale X -50,000 185,467 -21.23 49.76 -2,487,905 9,228,486
2013-09-24 2013-09-20 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
M - Exercise X 38,000 235,467 19.24 20.68 786,030 4,870,635
2013-04-03 2013-04-01 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -1,444 197,467 -0.73 29.76 -42,973 5,876,618
2013-04-03 2013-04-01 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -2,580 198,911 -1.28
2013-04-03 2013-03-04 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
G - Gift -500 201,491 -0.25
2013-02-26 2013-02-22 4 GME GameStop Corp.
Stock Option (Right to Buy)
A - Award 42,210 42,210
2013-02-26 2013-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 12,090 201,991 6.37
2013-02-26 2013-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 12,090 201,991 6.37
2013-02-26 2013-02-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 12,090 201,991 6.37
2013-02-11 2013-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
F - Taxes -2,835 165,721 -1.68 25.41 -72,037 4,210,971
2012-03-22 2012-03-22 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
D - Sale to Issuer -375 168,556 -0.22
2012-02-09 2012-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 76,700 168,931 83.16
2012-02-09 2012-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 12,900 92,231 16.26
2012-02-09 2012-02-07 4 GME GameStop Corp.
Class A Common Stock, par value $0.001 per share
A - Award 25,800 79,331 48.20
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)