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Insider Trading: Gulfmark Offshore Inc
Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Gulfmark Offshore Inc in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Gulfmark Offshore Inc since year 2005. Table 2 shows the detailed insider transactions of Gulfmark Offshore Inc since 2005.
The reporting company's ticker symbol is GLF.
The reporting company's CIK number is 1030749.
The total value of stock buying since 2005 is $80,864.
The total value of stock sales is $11,057,990.
The total value of stock exercises is $4,114,516.
1 year stock price chart,
1 day stock price chart
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Figure 1. Monthly insider transaction values at Gulfmark Offshore Inc (GLF) in the past 24 months.
The trade values of insider stock buys, sales, and option exercises are in logarithmic scale
as shown on the right axis labels.
The detailed monthly and daily insider transactions are listed in the 2 tables below.
11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 09 10 -
Figure 2. Average prices of insider buys, sales, and option exercises at Gulfmark Offshore Inc (GLF) in the past 24 months. See table 2 for insider transaction details.
11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 09 10 -
Table 1. Monthly summaries of insider stock purchases, sales, and option exercises
for Gulfmark Offshore Inc (GLF).
Trading Period
year-month |
Insider Buying
Shares Value ($) |
Insider Sales
Shares Value ($) |
Option Exercises
Shares Value ($) |
| 2008-09 | 0 | 0 | 50,000 | 2,198,405 | 217 | 8,276 |
| 2008-06 | 0 | 0 | 41,314 | 2,713,757 | 57 | 2,704 |
| 2008-05 | 0 | 0 | 31,310 | 1,887,391 | 84,000 | 1,370,250 |
| 2008-03 | 0 | 0 | 5,796 | 305,759 | 1,902 | 75,012 |
| 2008-01 | 0 | 0 | 3,555 | 144,403 | 0 | 0 |
| 2007-12 | 0 | 0 | 0 | 0 | 10,000 | 162,700 |
| 2007-07 | 100 | 5,515 | 0 | 0 | 0 | 0 |
| 2007-06 | 0 | 0 | 734 | 37,712 | 461 | 18,232 |
| 2007-05 | 0 | 0 | 2,847 | 142,690 | 0 | 0 |
| 2007-04 | 0 | 0 | 29,216 | 1,362,179 | 84,000 | 577,500 |
| 2007-03 | 52 | 2,072 | 16,179 | 705,271 | 11,817 | 141,726 |
| 2006-11 | 0 | 0 | 1,524 | 55,519 | 0 | 0 |
| 2006-07 | 2,352 | 63,245 | 0 | 0 | 19,656 | 78,002 |
| 2006-06 | 400 | 10,032 | 2,752 | 70,548 | 857 | 18,811 |
| 2006-03 | 0 | 0 | 5,000 | 135,900 | 100,655 | 319,967 |
| 2006-01 | 0 | 0 | 0 | 0 | 49,138 | 131,886 |
| 2005-12 | 0 | 0 | 0 | 0 | 150,000 | 1,209,450 |
| 2005-11 | 0 | 0 | 400 | 13,336 | 0 | 0 |
| 2005-08 | 0 | 0 | 1,155 | 34,120 | 0 | 0 |
| 2005-06 | 0 | 0 | 40,000 | 998,000 | 0 | 0 |
| 2005-05 | 0 | 0 | 10,000 | 253,000 | 0 | 0 |
Table 2. Detailed insider stock purchases, sales, and option exercises
for Gulfmark Offshore Inc (GLF)
| Trade Date |
Insider Name |
Trade Type |
Shares |
Price ($) |
Value ($) |
| 2008-09-30 | Kneen Quintin (VP - Finance) | Option Exercise | 217 | 38.14 | 8,276 |
| 2008-09-29 | Millard Robert B (Director) | Sale | 40,100 | 42.97 | 1,723,205 |
| 2008-09-26 | Millard Robert B (Director) | Sale | 9,900 | 48.00 | 475,200 |
| 2008-06-30 | Kneen Quintin (VP - Finance) | Option Exercise | 57 | 47.45 | 2,704 |
| 2008-06-20 | Guthrie Edward A (Exec. VP & CFO) | Sale | 600 | 67.00 | 40,200 |
| 2008-06-19 | Guthrie Edward A (Exec. VP & CFO) | Sale | 9,400 | 67.00 | 629,800 |
| 2008-06-17 | Crowe Marshall A (Director) | Sale | 2,500 | 66.00 | 165,000 |
| 2008-06-15 | Mashinski Carla S (VP Acct & Chief Acct Officer) | Sale | 972 | 64.67 | 62,859 |
| 2008-06-13 | Crowe Marshall A (Director) | Sale | 2,500 | 66.04 | 165,100 |
| 2008-06-13 | Streeter Bruce A (President & CEO) | Sale | 20,000 | 64.58 | 1,291,636 |
| 2008-06-09 | Mashinski Carla S (VP Acct & Chief Acct Officer) | Sale | 850 | 67.59 | 57,451 |
| 2008-06-05 | Mashinski Carla S (VP Acct & Chief Acct Officer) | Sale | 478 | 67.39 | 32,212 |
| 2008-06-02 | Leech John E (Exec. VP - Operations) | Sale | 4,014 | 67.14 | 269,499 |
| 2008-05-30 | Mashinski Carla S (VP Acct & Chief Acct Officer) | Sale | 399 | 65.41 | 26,098 |
| 2008-05-30 | Streeter Bruce A (President & CEO) | Sale | 2,027 | 65.41 | 132,586 |
| 2008-05-12 | Streeter Bruce A (President & CEO) | Sale | 20,631 | 59.85 | 1,234,765 |
| 2008-05-12 | Streeter Bruce A (President & CEO) | Option Exercise | 60,000 | 16.31 | 978,750 |
| 2008-05-12 | Leech John E (Exec. VP - Operations) | Sale | 8,253 | 59.85 | 493,942 |
| 2008-05-12 | Leech John E (Exec. VP - Operations) | Option Exercise | 24,000 | 16.31 | 391,500 |
| 2008-03-31 | Mashinski Carla S (VP Acct & Chief Acct Officer) | Option Exercise | 634 | 39.44 | 25,004 |
| 2008-03-31 | Streeter Bruce A (President & CEO) | Option Exercise | 634 | 39.44 | 25,004 |
| 2008-03-31 | Guthrie Edward A (Exec. VP - Finance & CFO) | Option Exercise | 634 | 39.44 | 25,004 |
| 2008-03-17 | Streeter Bruce A (President & CEO) | Sale | 1,983 | 52.43 | 103,968 |
| 2008-03-17 | Leech John E (Exec. VP - Operations) | Sale | 1,331 | 52.43 | 69,784 |
| 2008-03-17 | Guthrie Edward A (Exec. VP - Finance & CFO) | Sale | 1,625 | 52.43 | 85,198 |
| 2008-03-04 | Mashinski Carla S (VP - Acct. & Chief Acct. Off.) | Sale | 857 | 54.62 | 46,809 |
| 2008-01-23 | Leech John E (Exec. VP - Operations) | Sale | 881 | 40.62 | 35,786 |
| 2008-01-23 | Guthrie Edward A (Exec. VP - Finance & CFO) | Sale | 2,674 | 40.62 | 108,617 |
| 2007-12-31 | Guthrie Edward A (Exec. VP - Finance & CFO) | Option Exercise | 10,000 | 16.27 | 162,700 |
| 2007-07-20 | Streeter Bruce A (President & CEO) | Purchase | 100 | 55.15 | 5,515 |
| 2007-06-29 | Mashinski Carla S (VP - Acct. & Chief Acct. Off.) | Option Exercise | 461 | 39.55 | 18,232 |
| 2007-06-07 | Mashinski Carla S (VP - Acct & Chief Acct. Off.) | Sale | 734 | 51.38 | 37,712 |
| 2007-05-30 | Mashinski Carla S (VP - Acct. & Chief Acct. Off.) | Sale | 419 | 50.12 | 21,000 |
| 2007-05-30 | Leech John E (Exec. VP - Operations) | Sale | 1,214 | 50.12 | 60,845 |
| 2007-05-30 | Guthrie Edward A (Exec. VP - Finance & CFO) | Sale | 1,214 | 50.12 | 60,845 |
| 2007-04-20 | Streeter Bruce A (President & CEO) | Option Exercise | 60,000 | 6.88 | 412,500 |
| 2007-04-20 | Leech John E (Exec. V.P. - Operations) | Sale | 6,216 | 46.20 | 287,179 |
| 2007-04-20 | Leech John E (Exec. V.P. - Operations) | Option Exercise | 24,000 | 6.88 | 165,000 |
| 2007-04-20 | Guthrie Edward A (Exec. V.P. - Finance & CFO) | Sale | 3,000 | 46.20 | 138,600 |
| 2007-04-17 | Streeter Bruce A (President & CEO) | Sale | 20,000 | 46.82 | 936,400 |
| 2007-03-30 | Mashinski Carla S (Controller) | Option Exercise | 216 | 31.22 | 6,743 |
| 2007-03-30 | Streeter Bruce A (President & CEO) | Option Exercise | 800 | 31.22 | 24,976 |
| 2007-03-30 | Guthrie Edward A (Exec. VP - Finance & CFO) | Option Exercise | 801 | 31.22 | 25,007 |
| 2007-03-29 | Crowe Marshall A (Director) | Option Exercise | 10,000 | 8.50 | 85,000 |
| 2007-03-29 | Leech John E (Exec. V.P. - Operations) | Sale | 5,034 | 44.10 | 221,999 |
| 2007-03-28 | Crowe Marshall A (Director) | Sale | 10,000 | 43.27 | 432,700 |
| 2007-03-27 | Lehman Brothers Holdings Inc | Sale | 145 | 44.00 | 6,380 |
| 2007-03-26 | Mashinski Carla S (Controller) | Sale | 1,000 | 44.19 | 44,192 |
| 2007-03-01 | Lehman Brothers Holdings Inc | Purchase | 52 | 39.85 | 2,072 |
| 2006-11-06 | Mashinski Carla S (Controller) | Sale | 1,524 | 36.43 | 55,519 |
| 2006-07-12 | Leech John E (Exec. V.P. - Operations) | Option Exercise | 19,656 | 3.97 | 78,002 |
| 2006-07-06 | Lehman Brothers Holdings Inc | Purchase | 2,352 | 26.89 | 63,245 |
| 2006-06-30 | Mashinski Carla S (Controller) | Option Exercise | 857 | 21.95 | 18,811 |
| 2006-06-30 | Lehman Brothers Holdings Inc | Sale | 2,352 | 25.73 | 60,516 |
| 2006-06-02 | Crowe Marshall A (Director) | Purchase | 400 | 25.08 | 10,032 |
| 2006-06-02 | Crowe Marshall A (Director) | Sale | 400 | 25.08 | 10,032 |
| 2006-03-31 | Mashinski Carla S (Controller) | Option Exercise | 262 | 23.63 | 6,191 |
| 2006-03-31 | Crowe Marshall A (Director) | Sale | 5,000 | 27.18 | 135,900 |
| 2006-03-31 | Streeter Bruce A (President & COO) | Option Exercise | 1,059 | 23.63 | 25,024 |
| 2006-03-31 | Guthrie Edward A (Exec. V.P. - Finance & CFO) | Option Exercise | 1,058 | 23.63 | 25,000 |
| 2006-03-17 | Streeter Bruce A (President & COO) | Option Exercise | 78,620 | 2.68 | 211,000 |
| 2006-03-17 | Leech John E (Exec. VP - Operations) | Option Exercise | 19,656 | 2.68 | 52,752 |
| 2006-01-18 | Butters David J (Director) | Option Exercise | 49,138 | 2.68 | 131,886 |
| 2005-12-29 | Guthrie Edward A (Exec. VP - Finance &) | Option Exercise | 100,000 | 8.06 | 806,300 |
| 2005-11-22 | Mashinski Carla S (Controller) | Sale | 400 | 33.34 | 13,336 |
| 2005-08-31 | Lehman Brothers Holdings Inc | Sale | 776 | 29.90 | 23,202 |
| 2005-08-23 | Mashinski Carla S (Controller) | Sale | 379 | 28.81 | 10,918 |
| 2005-06-13 | Lehman Brothers Holdings Inc | Sale | 40,000 | 24.95 | 998,000 |
| 2005-05-13 | Crowe Marshall A (Director) | Sale | 10,000 | 25.30 | 253,000 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above tables cannot be completely guaranteed as to their accuracy.
For more insider trading information of Gulfmark Offshore Inc (symbol GLF,
CIK number 1030749) see
the Securities and Exchange Commission (SEC) website.
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