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Insider Trading: Martin Marietta Materials Inc

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Martin Marietta Materials Inc in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Martin Marietta Materials Inc since year 2005. Table 2 shows the detailed insider transactions of Martin Marietta Materials Inc since 2005. The reporting company's ticker symbol is MLM. The reporting company's CIK number is 916076.

The total value of stock buying since 2005 is $109,823,454. The total value of stock sales is $92,039,451. The total value of stock exercises is $44,095,164.


1 year stock price chart,   1 day stock price chart
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Figure 1. Monthly insider transaction values at Martin Marietta Materials Inc (MLM) 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

  • $65,117k

    $6,511k

    $651k

    $65k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Martin Marietta Materials Inc (MLM) 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

  • $150.20

    $112.65

    $75.10

    $37.55



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Martin Marietta Materials Inc (MLM).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-10 866,100 65,117,649 0 0 0 0
2008-08 443,400 44,705,805 0 0 0 0
2008-02 0 0 1,500 159,277 1,500 71,625
2007-09 0 0 20,000 2,659,000 20,000 918,750
2007-08 0 0 37,511 4,858,675 51,429 2,426,275
2007-05 0 0 79,860 11,794,612 83,262 3,559,270
2007-03 0 0 64,327 8,098,008 87,000 4,172,625
2007-02 0 0 92,515 11,565,248 105,500 4,828,884
2006-12 0 0 26,294 2,681,263 28,937 1,247,969
2006-11 0 0 105,731 9,827,144 126,500 5,857,686
2006-08 0 0 103,829 8,575,115 130,500 5,380,176
2006-06 0 0 7,885 725,113 10,000 459,375
2006-05 0 0 61,613 6,041,013 77,000 3,614,200
2006-03 0 0 141,889 13,837,576 159,500 6,911,415
2006-02 0 0 86,948 8,397,263 112,500 4,646,914
2005-12 0 0 2,204 163,294 0 0
2005-11 0 0 11,310 847,965 0 0
2005-08 0 0 24,500 1,766,885 0 0
2005-06 0 0 672 42,000 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Martin Marietta Materials Inc (MLM)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-10-28 Mcdermott Edward H (10% Owner) Purchase 200,000 65.38 13,076,000
2008-10-09 Elizabeth R. & William J. Patterson Foundation (10% Owner) Purchase 73,100 73.89 5,401,359
2008-10-09 Mcdermott Edward H (10% Owner) Purchase 100,000 76.98 7,698,000
2008-10-08 Mcdermott Edward H (10% Owner) Purchase 250,000 78.95 19,738,000
2008-10-07 Elizabeth R. & William J. Patterson Foundation (10% Owner) Purchase 243,000 79.03 19,204,290
2008-08-07 Mcdermott Edward H (10% Owner) Purchase 443,400 100.82 44,705,805
2008-02-12 Menaker Frank H Jr Sale 1,500 106.18 159,277
2008-02-12 Menaker Frank H Jr Option Exercise 1,500 47.75 71,625
2007-09-14 Sipling Philip J (Exec. VP) Sale 20,000 132.95 2,659,000
2007-09-14 Sipling Philip J (Exec. VP) Option Exercise 20,000 45.94 918,750
2007-08-22 Zelnak Stephen P Jr (Chm. and CEO) Sale 19,577 132.83 2,600,493
2007-08-22 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 26,429 51.72 1,366,775
2007-08-21 Zelnak Stephen P Jr (Chm. and CEO) Sale 17,934 125.92 2,258,182
2007-08-21 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 25,000 42.38 1,059,500
2007-05-31 Sipling Philip J (Exec. VP) Sale 10,000 157.23 1,572,334
2007-05-31 Sipling Philip J (Exec. VP) Option Exercise 10,000 45.94 459,375
2007-05-24 Bar Roselyn R (SVP, General Counsel and Secy) Sale 5,000 151.24 756,225
2007-05-24 Bar Roselyn R (SVP, General Counsel and Secy) Option Exercise 5,000 38.32 191,600
2007-05-23 Lloyd Anne H (SVP/CFO/Treas.) Sale 8,598 150.78 1,296,406
2007-05-23 Lloyd Anne H (SVP/CFO/Treas.) Option Exercise 12,000 37.44 449,220
2007-05-23 Zelnak Stephen P Jr (Chm. and CEO) Sale 9,762 151.19 1,475,916
2007-05-23 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 9,762 61.05 595,970
2007-05-23 Stewart Jonathan T (SVP Human Resources) Sale 10,000 151.34 1,513,419
2007-05-23 Stewart Jonathan T (SVP Human Resources) Option Exercise 10,000 42.38 423,800
2007-05-22 Bennett Marcus C Sale 6,500 149.24 970,076
2007-05-21 Bennett Marcus C Option Exercise 6,500 44.57 289,705
2007-05-16 Sipling Philip J (Exec. VP) Sale 30,000 140.34 4,210,236
2007-05-16 Sipling Philip J (Exec. VP) Option Exercise 30,000 38.32 1,149,600
2007-03-09 Zelnak Stephen P Jr (Chairman and CEO) Sale 14,683 128.13 1,881,332
2007-03-09 Zelnak Stephen P Jr (Chairman and CEO) Option Exercise 20,000 48.00 960,000
2007-03-08 Zelnak Stephen P Jr (Chairman and CEO) Sale 14,761 128.37 1,894,869
2007-03-08 Zelnak Stephen P Jr (Chairman and CEO) Option Exercise 20,000 48.00 960,000
2007-03-07 Zelnak Stephen P Jr (Chm. and CEO) Sale 14,831 125.32 1,858,620
2007-03-07 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 20,000 48.00 960,000
2007-03-06 Zelnak Stephen P Jr (Chm. and CEO) Sale 20,052 122.84 2,463,187
2007-03-06 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 27,000 47.88 1,292,625
2007-02-20 Vaio Bruce A (Executive VP) Sale 7,739 129.31 1,000,761
2007-02-20 Vaio Bruce A (Executive VP) Option Exercise 10,000 48.00 480,000
2007-02-14 Moe Donald M (Sr. VP) Sale 10,980 127.60 1,400,993
2007-02-14 Moe Donald M (Sr. VP) Option Exercise 15,000 45.94 689,062
2007-02-13 Vaio Bruce A (Executive VP) Sale 8,286 123.92 1,026,801
2007-02-13 Vaio Bruce A (Executive VP) Option Exercise 10,000 42.38 423,800
2007-02-13 Stewart Jonathan T (SVP Human Resources) Sale 5,000 124.75 623,750
2007-02-13 Stewart Jonathan T (SVP Human Resources) Option Exercise 5,000 38.32 191,600
2007-02-13 Sipling Philip J (Exec. VP) Sale 25,000 124.24 3,106,000
2007-02-13 Sipling Philip J (Exec. VP) Option Exercise 25,000 48.00 1,200,000
2007-02-12 Vinroot Richard A Sale 1,500 119.85 179,778
2007-02-12 Vinroot Richard A Option Exercise 1,500 63.44 95,160
2007-02-09 Shepherd Daniel G (Exec VP) Sale 9,395 125.51 1,179,166
2007-02-09 Shepherd Daniel G (Exec VP) Option Exercise 12,000 40.35 484,200
2007-02-09 Moe Donald M (Sr. VP) Sale 9,615 121.95 1,172,549
2007-02-09 Moe Donald M (Sr. VP) Option Exercise 12,000 48.00 576,000
2007-02-09 Stewart Jonathan T (SVP Human Resources) Sale 15,000 125.03 1,875,450
2007-02-09 Stewart Jonathan T (SVP Human Resources) Option Exercise 15,000 45.94 689,062
2006-12-05 Vaio Bruce A (Executive VP) Sale 11,618 101.75 1,182,131
2006-12-05 Vaio Bruce A (Executive VP) Option Exercise 15,000 38.32 574,800
2006-12-05 Lloyd Anne H (SVP/CFO/Treas.) Sale 2,449 102.41 250,802
2006-12-05 Lloyd Anne H (SVP/CFO/Treas.) Option Exercise 2,937 52.32 153,649
2006-12-05 Bar Roselyn R (SVP, General Counsel and Secy) Sale 11,000 102.33 1,125,630
2006-12-05 Bar Roselyn R (SVP, General Counsel and Secy) Option Exercise 11,000 47.23 519,520
2006-12-04 Bar Roselyn R (SVP, General Counsel and Secy) Sale 1,227 100.00 122,700
2006-11-30 Stewart Jonathan T (SVP Human Resources) Sale 12,500 99.03 1,237,868
2006-11-30 Stewart Jonathan T (SVP Human Resources) Option Exercise 12,500 48.00 600,000
2006-11-09 Moe Donald M (Sr. VP) Sale 7,199 94.95 683,522
2006-11-09 Moe Donald M (Sr. VP) Option Exercise 9,000 47.75 429,750
2006-11-09 Zelnak Stephen P Jr (Chm. and CEO) Sale 17,697 94.33 1,669,423
2006-11-09 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 22,500 45.94 1,033,593
2006-11-08 Zelnak Stephen P Jr (Chm. and CEO) Sale 17,802 91.92 1,636,327
2006-11-08 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 22,500 45.94 1,033,593
2006-11-08 Stewart Jonathan T (SVP Human Resources) Sale 10,000 92.72 927,196
2006-11-08 Stewart Jonathan T (SVP Human Resources) Option Exercise 10,000 47.75 477,500
2006-11-07 Sipling Philip J (Exec. VP) Sale 40,533 90.61 3,672,808
2006-11-07 Sipling Philip J (Exec. VP) Option Exercise 50,000 45.66 2,283,250
2006-08-28 Zelnak Stephen P Jr (Chm. and CEO) Sale 18,510 83.37 1,543,158
2006-08-28 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 23,333 42.38 988,852
2006-08-25 Zelnak Stephen P Jr (Chm. and CEO) Sale 15,866 82.00 1,300,980
2006-08-25 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 20,000 42.38 847,600
2006-08-24 Zelnak Stephen P Jr (Chm. and CEO) Sale 15,879 82.33 1,307,306
2006-08-24 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 20,000 42.38 847,600
2006-08-23 Zelnak Stephen P Jr (Chm. and CEO) Sale 15,855 82.11 1,301,873
2006-08-23 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 20,000 42.38 847,600
2006-08-22 Zelnak Stephen P Jr (Chm. and CEO) Sale 16,775 82.81 1,389,189
2006-08-22 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 21,667 38.32 830,279
2006-08-21 Zelnak Stephen P Jr (Chm. and CEO) Sale 15,444 82.12 1,268,196
2006-08-21 Zelnak Stephen P Jr (Chm. and CEO) Option Exercise 20,000 38.32 766,400
2006-08-04 Watterson David S (VP and Chief Info. Officer) Sale 5,500 84.44 464,413
2006-08-04 Watterson David S (VP and Chief Info. Officer) Option Exercise 5,500 45.79 251,845
2006-06-01 Henry Janice K (Sr. Vice Pres.) Sale 7,885 91.96 725,113
2006-06-01 Henry Janice K (Sr. Vice Pres.) Option Exercise 10,000 45.94 459,375
2006-05-26 Henry Janice K (Sr. Vice Pres.) Sale 5,592 90.55 506,374
2006-05-26 Henry Janice K (Sr. Vice Pres.) Option Exercise 7,000 47.75 334,250
2006-05-17 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 9,465 91.49 865,977
2006-05-17 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,000 47.75 573,000
2006-05-16 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 9,456 93.68 885,861
2006-05-16 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,000 47.75 573,000
2006-05-15 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 9,364 95.92 898,226
2006-05-15 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,000 47.75 573,000
2006-05-12 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 9,886 99.73 985,906
2006-05-12 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,000 47.75 573,000
2006-05-09 Henry Janice K (Sr. Vice Pres.) Sale 5,744 105.64 606,786
2006-05-09 Henry Janice K (Sr. Vice Pres.) Option Exercise 7,000 47.75 334,250
2006-05-08 Moe Donald M (Sr. VP/Pres. - Carolina Div.) Sale 12,106 106.71 1,291,883
2006-05-08 Moe Donald M (Sr. VP/Pres. - Carolina Div.) Option Exercise 15,000 43.58 653,700
2006-03-14 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 10,249 97.45 998,724
2006-03-14 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,500 43.58 544,750
2006-03-13 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 10,246 98.11 1,005,264
2006-03-13 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 12,500 43.58 544,750
2006-03-10 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,197 96.49 790,936
2006-03-10 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-09 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,212 97.95 804,364
2006-03-09 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-08 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,224 96.13 790,538
2006-03-08 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-07 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 16,416 96.76 1,588,468
2006-03-07 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 20,000 43.58 871,600
2006-03-07 Vinroot Richard A Sale 7,000 95.97 671,812
2006-03-06 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 16,374 98.30 1,609,486
2006-03-06 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 20,000 43.58 871,600
2006-03-06 Vinroot Richard A Option Exercise 7,000 42.15 295,050
2006-03-03 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,183 98.25 803,979
2006-03-03 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-03 Bennett Marcus C Sale 4,000 98.46 393,835
2006-03-02 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,188 98.59 807,256
2006-03-02 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-02 Bennett Marcus C Option Exercise 4,000 37.44 149,740
2006-03-01 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,205 98.07 804,670
2006-03-01 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-03-01 Mcdonald William E Sale 8,500 98.04 833,361
2006-02-28 Zelnak Stephen P Jr (Chm. Pres. & CEO) Sale 8,190 96.95 794,040
2006-02-28 Zelnak Stephen P Jr (Chm. Pres. & CEO) Option Exercise 10,000 43.58 435,800
2006-02-28 Sipling Philip J (Exec. VP) Sale 11,939 97.34 1,162,190
2006-02-28 Sipling Philip J (Exec. VP) Option Exercise 15,000 36.55 548,250
2006-02-28 Mcdonald William E Option Exercise 8,500 48.56 412,794
2006-02-28 Henry Janice K (Sr. Vice Pres.) Sale 8,190 96.91 793,652
2006-02-28 Henry Janice K (Sr. Vice Pres.) Option Exercise 10,000 43.58 435,800
2006-02-27 Henry Janice K (Sr. Vice Pres.) Sale 8,189 98.22 804,288
2006-02-27 Henry Janice K (Sr. Vice Pres.) Option Exercise 10,000 43.58 435,800
2006-02-24 Bar Roselyn R (SVP, General Counsel and Secy) Sale 17,025 97.32 1,656,873
2006-02-24 Bar Roselyn R (SVP, General Counsel and Secy) Option Exercise 21,000 41.43 869,960
2006-02-24 Sipling Philip J (Exec. VP) Sale 11,950 97.54 1,165,618
2006-02-24 Sipling Philip J (Exec. VP) Option Exercise 15,000 36.55 548,250
2006-02-21 Stewart Jonathan T (SVP Human Resources) Sale 15,000 94.38 1,415,737
2006-02-21 Stewart Jonathan T (SVP Human Resources) Option Exercise 15,000 43.58 653,700
2006-02-17 Shepherd Daniel G (Exec VP) Sale 6,465 93.56 604,865
2006-02-17 Shepherd Daniel G (Exec VP) Option Exercise 8,000 38.32 306,560
2005-12-13 Watterson David S (VP and Chief Info. O) Sale 2,204 74.09 163,294
2005-11-30 Zelnak Stephen P Jr (Chairman, President) Sale 9,864 74.85 738,359
2005-11-18 Zelnak Stephen P Jr (Chairman, President) Sale 713 74.92 53,421
2005-11-03 Zelnak Stephen P Jr (Chairman, President) Sale 733 76.65 56,185
2005-08-31 Stewart Jonathan T (Sr. VP-Human Resourc) Sale 14,200 72.09 1,023,696
2005-06-02 Watterson David S (VP and Chief Info. O) Sale 672 62.50 42,000

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 Martin Marietta Materials Inc (symbol MLM, CIK number 916076) see the Securities and Exchange Commission (SEC) website.

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