Natural Resource Partners L.P. - Limited Partnership
US ˙ NYSE ˙ US63900P6088

Introduction

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

Security Title Latest Reported Holdings
US:WLK / Westlake Corporation Director 0
US:GHL / Greenhill & Co Inc Director 8,261
US:ALLY / Ally Financial Inc. Director 26,172
US:NRP / Natural Resource Partners L.P. - Limited Partnership Director 370
US:FNM / EVP & Chief Financial Officer 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 Robert T Blakely. 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 NRP / Natural Resource Partners L.P. - Limited Partnership - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in NRP / Natural Resource Partners L.P. - Limited Partnership. 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 (%)
2013-03-01 NRP BLAKELY ROBERT T 708 21.6400 71 216.4000 15,321 39 240.6 1,521 9.93
2013-03-01 NRP BLAKELY ROBERT T 1,000 21.7000 100 217.0000 21,700
2013-03-01 NRP BLAKELY ROBERT T 3,000 21.7500 300 217.5000 65,250
2013-03-01 NRP BLAKELY ROBERT T 1,000 21.7900 100 217.9000 21,790
2013-03-01 NRP BLAKELY ROBERT T 2,000 21.8000 200 218.0000 43,600
2013-03-01 NRP BLAKELY ROBERT T 1,292 21.8400 129 218.4000 28,217
2013-03-01 NRP BLAKELY ROBERT T 1,500 21.8900 150 218.9000 32,835
2013-02-28 NRP BLAKELY ROBERT T 155 21.8000 16 218.0000 3,379
2013-02-28 NRP BLAKELY ROBERT T 1,000 21.8200 100 218.2000 21,820
2013-02-28 NRP BLAKELY ROBERT T 2,000 21.8300 200 218.3000 43,660
2013-02-28 NRP BLAKELY ROBERT T 3,845 21.8400 384 218.4000 83,975
2013-02-28 NRP BLAKELY ROBERT T 2,000 21.8500 200 218.5000 43,700
2013-02-28 NRP BLAKELY ROBERT T 1,000 21.8700 100 218.7000 21,870
2013-02-28 NRP BLAKELY ROBERT T 2,000 21.9000 200 219.0000 43,800

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

NRP / Natural Resource Partners L.P. - Limited Partnership Insider Trades
Insider Sales NRP / Natural Resource Partners L.P. - Limited Partnership - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in NRP / Natural Resource Partners L.P. - Limited Partnership. 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.

NRP / Natural Resource Partners L.P. - Limited Partnership Insider Trades
Insider Purchases WLK / Westlake Corporation - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in NRP / Natural Resource Partners L.P. - Limited Partnership. 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.

WLK / Westlake Corporation Insider Trades
Insider Sales WLK / Westlake Corporation - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in NRP / Natural Resource Partners L.P. - Limited Partnership. 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 (%)
2018-02-27 WLK BLAKELY ROBERT T 4,038 111.0000 4,038 111.0000 448,218 300 60.82 -202,627 -45.21
2017-11-14 WLK BLAKELY ROBERT T 4,367 92.3266 4,367 92.3266 403,190
2015-08-11 WLK BLAKELY ROBERT T 5,143 63.0000 5,143 63.0000 324,009
2014-03-13 WLK BLAKELY ROBERT T 1,609 135.0300 1,609 135.0300 217,263
2013-11-25 WLK BLAKELY ROBERT T 2,534 112.2107 2,534 112.2107 284,342
2013-03-13 WLK BLAKELY ROBERT T 444 94.9610 444 94.9610 42,163
2013-03-13 WLK BLAKELY ROBERT T 1,400 94.9630 1,400 94.9630 132,948
2012-05-14 WLK BLAKELY ROBERT T 2,324 57.1000 2,324 57.1000 132,700

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

WLK / Westlake Corporation Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Robert T Blakely 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
2018-08-22 2018-08-21 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise 603 0 -100.00
2018-08-22 2018-08-21 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 603 10,989 5.81
2018-08-20 2018-08-18 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -1,721 0 -100.00
2018-08-20 2018-08-18 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 1,721 10,386 19.86
2018-08-20 2018-08-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 1,409 1,409
2018-08-20 2018-08-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -1,003 1,003 -50.00
2018-08-20 2018-08-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 1,003 8,665 13.09
2018-05-21 2018-05-18 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 103 103
2018-02-28 2018-02-27 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -4,038 7,662 -34.51 111.00 -448,218 850,482
2017-11-15 2017-11-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -4,367 11,700 -27.18 92.33 -403,190 1,080,221
2017-08-22 2017-08-22 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -357 0 -100.00
2017-08-22 2017-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 357 16,067 2.27
2017-08-22 2017-08-21 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -603 603 -50.00
2017-08-22 2017-08-21 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 603 15,710 3.99
2017-08-21 2017-08-18 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 1,721 1,721
2017-08-17 2017-08-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -1,003 2,006 -33.33
2017-08-17 2017-08-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 1,003 15,107 7.11
2017-07-06 2017-07-06 4 GHL GREENHILL & CO INC
Common Stock
A - Award 772 8,261 10.31
2017-05-17 2017-05-15 4 ALLY Ally Financial Inc.
Common Stock
A - Award 7,057 26,172 36.92
2017-04-04 2017-04-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 533 7,489 7.66
2017-02-16 2017-02-13 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -370 370 -50.00
2017-02-16 2017-02-13 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -370 2,250 -14.12 36.54 -13,519 82,209
2017-02-16 2017-02-13 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 370 2,620 16.44
2017-01-09 2017-01-09 4 GHL GREENHILL & CO INC
Common Stock
A - Award 451 6,956 6.93
2016-10-05 2016-10-05 4 GHL GREENHILL & CO INC
Common Stock
A - Award 530 6,505 8.87
2016-08-24 2016-08-23 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -588 0 -100.00
2016-08-24 2016-08-23 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 588 14,104 4.35
2016-08-24 2016-08-22 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -357 357 -50.00
2016-08-24 2016-08-22 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -603 1,206 -33.33
2016-08-24 2016-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 357 13,516 2.71
2016-08-24 2016-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 603 13,159 4.80
2016-08-19 2016-08-17 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 3,009 3,009
2016-07-25 2016-07-21 4 ALLY Ally Financial Inc.
Common Stock
A - Award 597 19,115 3.22
2016-07-05 2016-07-05 4 GHL GREENHILL & CO INC
Common Stock
A - Award 776 5,975 14.93
2016-05-05 2016-05-03 4 ALLY Ally Financial Inc.
Common Stock
A - Award 5,855 18,518 46.24
2016-04-05 2016-04-04 4 GHL GREENHILL & CO INC
Common Stock
A - Award 563 5,199 12.14
2016-02-17 2016-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -3,700 0 -100.00
2016-02-17 2016-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -3,700 22,500 -14.12 1.03 -3,826 23,265
2016-02-17 2016-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 3,700 26,200 16.44
2016-01-05 2016-01-05 4 GHL GREENHILL & CO INC
Common Stock
A - Award 437 4,636 10.41
2015-10-02 2015-10-02 4 GHL GREENHILL & CO INC
Common Stock
A - Award 439 4,199 11.68
2015-08-25 2015-08-21 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 1,809 1,809
2015-08-25 2015-08-23 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -586 588 -49.91
2015-08-25 2015-08-23 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 586 12,556 4.90
2015-08-25 2015-08-22 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -357 714 -33.33
2015-08-25 2015-08-22 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 357 11,970 3.07
2015-08-13 2015-08-11 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -1,776 0 -100.00
2015-08-13 2015-08-11 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -5,143 11,613 -30.69 63.00 -324,009 731,619
2015-08-13 2015-08-11 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 1,776 16,756 11.86 12.26 21,765 205,345
2015-07-07 2015-07-06 4 GHL GREENHILL & CO INC
Common Stock
A - Award 302 3,760 8.73
2015-06-01 2015-05-28 4 ALLY Ally Financial Inc.
Common Stock
A - Award 4,396 12,663 53.18
2015-04-06 2015-04-06 4 GHL GREENHILL & CO INC
Common Stock
A - Award 315 3,458 10.02
2015-02-20 2014-08-23 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
M - Exercise -586 1,174 -33.30
2015-02-20 2014-08-23 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 586 14,980 4.07
2015-02-12 2015-02-11 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 4,100 4,100
2015-02-12 2015-02-10 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -3,580 0 -100.00
2015-02-12 2015-02-10 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -3,580 22,500 -13.73 8.95 -32,043 201,386
2015-02-12 2015-02-10 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 3,580 26,080 15.91
2015-01-06 2015-01-06 4 GHL GREENHILL & CO INC
Common Stock
A - Award 287 3,143 10.05
2014-10-02 2014-10-02 4 GHL GREENHILL & CO INC
Common Stock
A - Award 269 2,856 10.40
2014-08-26 2014-08-22 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 1,071 1,071
2014-07-21 2014-07-17 4 ALLY Ally Financial Inc.
Common Stock
A - Award 4,267 8,267 106.68
2014-07-03 2014-07-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 254 2,587 10.89
2014-04-15 2014-04-15 4 ALLY Ally Financial Inc.
Common Stock
A - Award 4,000 4,000 25.00 100,000 100,000
2014-04-03 2014-04-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 240 2,333 11.47
2014-03-14 2014-03-13 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,609 7,197 -18.27 135.03 -217,263 971,811
2014-02-13 2014-02-12 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 3,885 3,885
2014-02-13 2014-02-11 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -3,475 0 -100.00
2014-02-13 2014-02-11 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -3,475 22,500 -13.38 15.81 -54,940 355,725
2014-02-13 2014-02-11 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 3,475 25,975 15.44
2014-01-07 2014-01-07 4 GHL GREENHILL & CO INC
Common Stock
A - Award 216 2,093 11.51
2013-11-27 2013-11-25 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,534 8,806 -22.35 112.21 -284,342 988,127
2013-10-03 2013-10-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 251 1,877 15.44
2013-08-27 2013-08-23 4 WLK WESTLAKE CHEMICAL CORP
Restricted Stock Units
A - Award 880 880
2013-07-02 2013-07-02 4 GHL GREENHILL & CO INC
Common Stock
A - Award 273 1,626 20.18
2013-04-03 2013-04-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 234 1,353 20.91
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -957 0 -100.00
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Employee Option (right to buy)
M - Exercise -887 888 -49.97
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -1,400 11,340 -10.99 94.96 -132,948 1,076,880
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -444 12,740 -3.37 94.96 -42,163 1,209,803
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 957 13,184 7.83 20.82 19,930 274,557
2013-03-15 2013-03-13 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 887 12,227 7.82 24.51 21,740 299,684
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,500 22,500 7.14 21.89 32,835 492,525
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,292 21,000 6.56 21.84 28,217 458,640
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 2,000 19,708 11.29 21.80 43,600 429,634
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,000 17,708 5.99 21.79 21,790 385,857
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 3,000 16,708 21.89 21.75 65,250 363,399
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,000 13,708 7.87 21.70 21,700 297,464
2013-03-04 2013-03-01 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 708 12,708 5.90 21.64 15,321 275,001
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 2,000 12,000 20.00 21.90 43,800 262,800
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,000 10,000 11.11 21.87 21,870 218,700
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 2,000 9,000 28.57 21.85 43,700 196,650
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 3,845 7,000 121.87 21.84 83,975 152,880
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 2,000 3,155 173.16 21.83 43,660 68,874
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 1,000 1,155 645.16 21.82 21,820 25,202
2013-03-04 2013-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
P - Purchase 155 155 21.80 3,379 3,379
2013-02-26 2013-02-26 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -3,375 0 -100.00
2013-02-26 2013-02-26 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -3,375 0 -100.00 22.32 -75,330
2013-02-26 2013-02-26 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 3,375 3,375
2013-02-13 2013-02-13 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 3,700 3,700
2013-01-07 2013-01-04 4 GHL GREENHILL & CO INC
Common Stock
A - Award 240 1,119 27.30
2012-10-03 2012-10-03 4 GHL GREENHILL & CO INC
Common Stock
A - Award 242 879 37.99
2012-08-21 2012-08-17 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
A - Award 1,311 11,340 13.07 68.66 90,013 778,604
2012-07-05 2012-07-05 4 GHL GREENHILL & CO INC
Common Stock
A - Award 351 637 122.73
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 887 1,775 99.89
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 957 957
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 480 0 -100.00
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
S - Sale -2,324 10,029 -18.81 57.10 -132,700 572,656
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 480 12,353 4.04 27.12 13,020 335,075
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 887 11,873 8.07 24.51 21,740 291,007
2012-05-16 2012-05-14 4 WLK WESTLAKE CHEMICAL CORP
Common Stock
M - Exercise 957 10,986 9.54 20.82 19,930 228,783
2012-04-04 2012-04-04 4 GHL GREENHILL & CO INC
Common Stock
A - Award 286 286
2012-02-29 2012-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
M - Exercise -3,000 0 -100.00
2012-02-29 2012-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
D - Sale to Issuer -3,000 0 -100.00 26.40 -79,200
2012-02-29 2012-02-28 4 NRP NATURAL RESOURCE PARTNERS LP
Common Units
M - Exercise 3,000 3,000
2012-02-16 2012-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 375 375
2012-02-16 2012-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 475 475
2012-02-16 2012-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 580 580
2012-02-16 2012-02-14 4 NRP NATURAL RESOURCE PARTNERS LP
Phantom Units
A - Award 3,700 3,700
2009-05-18 3 GHL GREENHILL & CO INC
Common Stock
0
2006-02-01 3 FNM FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE
no securities beneficially owned
0
2004-08-18 2004-08-16 4 WLK WESTLAKE CHEMICAL CORP
Incentive Stock Options
A - Award 2,759 2,759
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)