Introduction

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

Security Title Latest Reported Holdings
US:US36164VAA52 / GCI Liberty, Inc. DBT Sr VP 7,710
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by William C Behnke. 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 William C Behnke 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
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Series A Cumulative Redeemable Preferred Stock
J - Other 7,710 7,710
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Class A Common Stock
J - Other 24,285 24,285
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Class A-1 Common Stock
J - Other -38,548 0 -100.00
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Series A Cumulative Redeemable Preferred Stock
J - Other 32,968 32,968
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Class A Common Stock
J - Other 103,850 103,850
2018-03-12 2018-03-08 4 GLIBA GCI LIBERTY, INC.
Class A-1 Common Stock
J - Other -164,841 0 -100.00
2018-03-05 2018-03-01 4 GNCMA GCI LIBERTY, INC.
Class A-1 Common Stock
A - Award 4,579 164,841 2.86
2018-02-22 2018-02-20 4 GNCMA GCI LIBERTY, INC.
Class A-1 Common Stock
J - Other 38,480 38,480
2018-02-22 2018-02-20 4 GNCMA GCI LIBERTY, INC.
Class A Common Stock
J - Other -38,480 0 -100.00
2018-02-22 2018-02-20 4 GNCMA GCI LIBERTY, INC.
Class A-1 Common Stock
J - Other 160,262 160,262
2018-02-22 2018-02-20 4 GNCMA GCI LIBERTY, INC.
Class A Common Stock
J - Other -160,262 0 -100.00
2017-12-04 2017-11-30 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -5,400 160,262 -3.26 39.91 -215,514 6,396,056
2017-09-06 2017-09-05 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale -16,250 165,662 -8.93 42.80 -695,500 7,090,334
2017-04-05 2017-04-04 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale -20,000 181,912 -9.91 31.00 -620,000 5,639,272
2017-03-03 2017-03-01 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 11,922 201,912 6.28 21.15 252,150 4,270,439
2016-12-01 2016-11-30 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -7,637 189,990 -3.86 16.86 -128,760 3,203,231
2016-02-17 2016-02-12 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 13,362 197,627 7.25 18.16 242,654 3,588,906
2015-12-02 2015-11-30 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -8,271 184,265 -4.30 20.77 -171,789 3,827,184
2015-10-23 2015-10-23 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale -10,000 192,536 -4.94 20.93 -209,300 4,029,778
2015-10-09 2015-10-07 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -6,837 202,536 -3.27 17.23 -117,802 3,489,695
2015-02-10 2015-02-06 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 19,538 209,373 10.29 14.56 284,473 3,048,471
2014-12-03 2014-12-01 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -5,361 189,835 -2.75 12.18 -65,297 2,312,190
2014-11-12 2014-11-10 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale -10,000 195,196 -4.87 12.00 -120,000 2,342,352
2014-10-31 2014-10-29 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale -10,000 205,196 -4.65 11.75 -117,500 2,411,053
2014-07-24 2014-07-22 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -2,645 215,196 -1.21 11.00 -29,095 2,367,156
2014-02-04 2014-01-31 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 27,924 217,841 14.70 9.73 271,701 2,119,593
2013-12-04 2013-12-02 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -3,809 189,917 -1.97 9.58 -36,490 1,819,405
2013-02-14 2013-02-12 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 28,682 193,726 17.38 8.12 232,898 1,573,055
2013-02-12 2013-02-08 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -3,068 165,044 -1.82 8.19 -25,127 1,351,710
2013-02-12 2012-12-31 5 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
I - Other 3,613 24,155 17.59 10.27 37,106 248,072
2013-02-12 2012-03-13 5 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
I - Other -118 20,542 -0.57 10.19 -1,202 209,323
2012-06-05 2012-06-03 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 10,000 168,112 6.32
2012-03-01 2012-02-28 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
F - Taxes -22,337 158,112 -12.38 10.97 -245,037 1,734,489
2012-02-08 2012-02-06 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 19,604 180,449 12.19 11.20 219,565 2,021,029
2012-01-19 2011-12-31 5 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
I - Other 3,186 20,660 18.23 11.26 35,874 232,632
2012-01-19 2011-03-11 5 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
I - Other -755 17,474 -4.14 11.12 -8,396 194,311
2012-01-13 2012-01-13 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale X -10,000 160,845 -5.85 10.04 -100,400 1,614,884
2012-01-13 2012-01-12 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale X -20,800 170,845 -10.85 9.97 -207,376 1,703,325
2012-01-13 2012-01-11 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale X -600 191,645 -0.31 9.90 -5,940 1,897,286
2012-01-05 2012-01-04 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale X -600 192,245 -0.31 10.00 -6,000 1,922,450
2012-01-05 2012-01-03 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
S - Sale X -5,500 192,845 -2.77 10.11 -55,605 1,949,663
2009-09-10 2009-09-08 4 GNCMA GENERAL COMMUNICATION INC
Class A Common Stock
A - Award 166,768 179,135 1,348.49
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)