Introduction

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

Security Title Latest Reported Holdings
US:NIHD / NII Holdings, Inc. VP and CFO 34,000
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Byron R Siliezar. 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 Byron R Siliezar 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
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -540 34,000 -1.56 81.73 -44,134 2,778,820
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -399 34,540 -1.14 81.72 -32,606 2,822,609
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -300 34,939 -0.85 81.69 -24,507 2,854,167
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -206 35,239 -0.58 81.68 -16,826 2,878,322
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 35,445 -0.28 81.67 -8,167 2,894,793
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 35,545 -0.56 81.65 -16,330 2,902,249
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 35,745 -0.28 81.63 -8,163 2,917,864
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -800 35,845 -2.18 81.56 -65,248 2,923,518
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -138 36,645 -0.38 81.55 -11,254 2,988,400
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Stock Option (right to purchase)
M - Exercise -12,500 37,500 -25.00
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Stock Option (right to purchase)
M - Exercise -37,500 75,000 -33.33
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Stock Option (right to purchase)
M - Exercise -50,000 50,000 -50.00
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -2,423 36,783 -6.18 81.52 -197,523 2,998,550
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 39,206 -0.25 81.43 -8,143 3,192,545
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 39,306 -0.25 81.41 -8,141 3,199,901
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 39,406 -0.50 81.39 -16,278 3,207,254
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 39,606 -0.50 81.37 -16,274 3,222,740
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 39,806 -0.50 81.36 -16,272 3,238,616
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -300 40,006 -0.74 81.35 -24,405 3,254,488
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -300 40,306 -0.74 81.34 -24,402 3,278,490
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -700 40,606 -1.69 81.33 -56,931 3,302,486
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 41,306 -0.24 81.32 -8,132 3,359,004
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -300 41,406 -0.72 81.27 -24,381 3,365,066
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 41,706 -0.24 81.26 -8,126 3,389,030
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -400 41,806 -0.95 81.25 -32,500 3,396,738
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -500 42,206 -1.17 81.24 -40,620 3,428,815
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 42,706 -0.47 81.23 -16,246 3,469,008
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -1,000 42,906 -2.28 81.22 -81,220 3,484,825
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 43,906 -0.23 81.20 -8,120 3,565,167
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 44,006 -0.45 81.19 -16,238 3,572,847
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -1,700 44,206 -3.70 81.18 -138,006 3,588,643
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -100 45,906 -0.22 81.16 -8,116 3,725,731
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 46,006 -0.43 81.15 -16,230 3,733,387
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -500 46,206 -1.07 81.08 -40,540 3,746,382
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -800 46,706 -1.68 81.07 -64,856 3,786,455
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -900 47,506 -1.86 81.04 -72,936 3,849,886
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -85,594 48,406 -63.88 81.00 -6,933,114 3,920,886
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
D - Sale to Issuer -100,000 134,000 -42.74 82.00 -8,200,000 10,988,000
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 12,500 234,000 5.64 60.77 759,625 14,220,180
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 37,500 221,500 20.38 26.20 982,500 5,803,300
2007-06-18 2007-06-14 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 50,000 184,000 37.31 18.97 948,500 3,490,480
2007-04-27 2007-04-25 4 NIHD NII HOLDINGS INC
Stock Option (right to buy)
A - Award 40,000 40,000
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Stock Option (option to buy)
M - Exercise -37,500 112,500 -25.00
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Stock Option (option to buy)
M - Exercise -50,000 100,000 -33.33
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Common Stock
D - Sale to Issuer -1,200 134,000 -0.89 65.04 -78,048 8,715,360
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Common Stock
D - Sale to Issuer -86,300 135,200 -38.96 65.00 -5,609,500 8,788,000
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 37,500 221,500 20.38 26.20 982,500 5,803,300
2006-05-09 2006-05-08 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 50,000 184,000 37.31 18.97 948,500 3,490,480
2006-04-28 2006-04-26 4 NIHD NII HOLDINGS INC
Stock Option (option to buy)
A - Award 50,000 50,000
2006-04-28 2006-04-26 4 NIHD NII HOLDINGS INC
Common Stock
A - Award 20,000 134,000 17.54
2005-11-16 2005-11-15 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise -45,000 0 -100.00
2005-11-16 2005-11-15 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -1,002 7,000 -12.52 86.01 -86,182 602,070
2005-11-16 2005-11-15 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 1,002 8,002 14.31 0.83 832 6,642
2005-11-16 2005-11-15 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -43,998 7,000 -86.27 86.00 -3,783,828 602,000
2005-11-16 2005-11-15 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 43,998 50,998 628.54 0.83 36,518 42,328
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise -25,000 75,000 -25.00
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise -112,970 45,000 -71.51
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 7,000 7,000 0.83 5,810 5,810
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -25,000 0 -100.00 55.00 -1,375,000
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 25,000 25,000 37.94 948,500 948,500
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -105,770 0 -100.00 55.00 -5,817,350
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 105,770 105,770 0.83 87,789 87,789
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -200 0 -100.00 55.02 -11,004
2005-05-20 2005-05-19 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 200 200 0.83 166 166
2005-05-20 2005-05-18 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise -22,030 157,970 -12.24
2005-05-20 2005-05-18 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -22,030 0 -100.00 55.00 -1,211,650
2005-05-20 2005-05-18 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 22,030 22,030 0.83 18,285 18,285
2005-04-29 2005-04-27 4 NIHD NII HOLDINGS INC
Stock Option (right to purchase)
A - Award 75,000 75,000
2004-04-30 2004-04-28 4 NIHD NII HOLDINGS INC
Stock Option (right to buy)
A - Award 100,000 100,000
2004-04-30 2004-04-28 4 NIHD NII HOLDINGS INC
Common Stock
A - Award 50,000 50,000
2004-03-03 2004-03-02 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise 22,833 60,000 61.43
2004-03-03 2004-03-02 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -22,833 0 -100.00 108.00 -2,465,964
2004-03-03 2004-03-02 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 22,833 22,833 2.50 57,082 57,082
2004-03-03 2004-03-01 4 NIHD NII HOLDINGS INC
Employee Stock Option (right to buy)
M - Exercise 22,167 82,833 36.54
2004-03-03 2004-03-01 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -10,500 0 -100.00 108.00 -1,134,000
2004-03-03 2004-03-01 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -6,667 10,500 -38.84 110.70 -738,037 1,162,350
2004-03-03 2004-03-01 4 NIHD NII HOLDINGS INC
Common Stock
S - Sale -5,000 17,167 -22.56 108.95 -544,750 1,870,345
2004-03-03 2004-03-01 4 NIHD NII HOLDINGS INC
Common Stock
M - Exercise 22,167 22,167 2.50 55,418 55,418
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)