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Insider Trading: Dorchester Minerals Lp

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Dorchester Minerals Lp in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Dorchester Minerals Lp since year 2005. Table 2 shows the detailed insider transactions of Dorchester Minerals Lp since 2005. The reporting company's ticker symbol is DMLP. The reporting company's CIK number is 1172358.

The total value of stock buying since 2005 is $1,675,445. The total value of stock sales is $17,317,196. The total value of stock exercises is $0.


1 year stock price chart,   1 day stock price chart
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Figure 1. Monthly insider transaction values at Dorchester Minerals Lp (DMLP) 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.

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • $1,399k

    $139k

    $13k

    $1k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Dorchester Minerals Lp (DMLP) in the past 24 months. See table 2 for insider transaction details.

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • $29.30

    $21.98

    $14.65

    $7.32



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Dorchester Minerals Lp (DMLP).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-07 3,000 87,900 0 0 0 0
2008-03 16,500 335,667 0 0 0 0
2008-02 840 16,640 0 0 0 0
2008-01 28,000 546,135 0 0 0 0
2007-08 29,900 588,707 0 0 0 0
2006-12 0 0 38,886 864,405 0 0
2006-11 0 0 25,248 608,297 0 0
2006-10 0 0 31,698 784,264 0 0
2006-09 0 0 53,629 1,399,774 0 0
2006-08 0 0 31,142 853,004 0 0
2006-07 0 0 26,173 679,197 0 0
2006-06 0 0 15,297 382,044 0 0
2006-05 0 0 29,553 762,157 0 0
2006-04 0 0 15,964 426,005 0 0
2006-03 4,000 100,396 65,426 1,613,030 0 0
2006-02 0 0 25,242 653,276 0 0
2006-01 0 0 26,173 702,196 0 0
2005-12 0 0 42,205 1,103,878 0 0
2005-11 0 0 25,244 644,236 0 0
2005-10 0 0 22,741 626,146 0 0
2005-09 0 0 47,847 1,301,273 0 0
2005-08 0 0 30,772 772,708 0 0
2005-07 0 0 24,585 586,213 0 0
2005-06 0 0 44,160 994,567 0 0
2005-05 0 0 32,611 709,701 0 0
2005-04 0 0 19,978 444,956 0 0
2005-03 0 0 17,692 405,869 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Dorchester Minerals Lp (DMLP)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-07-23 Allen H C Jr (Chief Financial Officer) Purchase 3,000 29.30 87,900
2008-03-18 Allen H C Jr (Chief Financial Officer) Purchase 4,000 20.25 81,000
2008-03-17 Allen H C Jr (Chief Financial Officer) Purchase 6,000 20.33 121,978
2008-03-14 Allen H C Jr (Chief Financial Officer) Purchase 1,000 20.80 20,800
2008-02-07 Allen H C Jr (Chief Financial Officer) Purchase 840 19.81 16,640
2008-01-25 Allen H C Jr (Chief Financial Officer) Purchase 12,000 19.51 234,090
2008-01-24 Vaughn Robert C Purchase 10,000 19.50 195,000
2007-08-22 Mcmanemin William Casey (Chief Executive Officer) Purchase 100 19.50 1,950
2007-08-21 Mcmanemin William Casey (Chief Executive Officer) Purchase 3,100 19.43 60,218
2007-08-20 Raley James E (CHIEF OPERATING OFFICER) Purchase 15,000 19.95 299,250
2007-08-20 Mcmanemin William Casey (Chief Executive Officer) Purchase 1,100 19.40 21,335
2007-08-17 Mcmanemin William Casey (Chief Executive Officer) Purchase 10,600 19.43 205,954
2006-12-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,713 21.84 124,771
2006-12-27 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,290 22.09 28,497
2006-12-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,474 21.82 32,155
2006-12-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 8,109 21.92 177,766
2006-12-21 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,792 21.51 103,078
2006-12-20 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 21.90 161,461
2006-12-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 22.65 62,616
2006-12-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 23.08 85,081
2006-12-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 24.14 88,980
2006-11-29 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,396 24.09 57,722
2006-11-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 23.98 44,204
2006-11-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,238 23.58 99,924
2006-11-17 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,607 23.94 110,291
2006-11-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,949 23.95 70,623
2006-11-13 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 24.19 89,178
2006-11-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 24.49 90,270
2006-11-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 25.01 46,085
2006-10-31 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 8,551 24.48 209,349
2006-10-27 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 25.40 46,818
2006-10-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 25.66 47,300
2006-10-25 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 25.54 23,521
2006-10-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 25.44 23,425
2006-10-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,290 25.94 33,462
2006-10-12 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 24.70 91,044
2006-10-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,534 24.53 111,228
2006-10-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,580 24.89 64,216
2006-10-04 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,529 24.22 133,901
2006-09-27 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,003 24.80 173,663
2006-09-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 9,583 25.23 241,767
2006-09-21 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 25.50 70,482
2006-09-20 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,713 25.75 147,108
2006-09-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 26.19 96,544
2006-09-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 26.08 72,098
2006-09-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 25.95 95,669
2006-09-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 26.77 98,663
2006-09-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 27.01 199,116
2006-09-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 28.51 105,106
2006-08-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 28.69 121,611
2006-08-21 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,234 27.45 116,224
2006-08-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,607 27.18 125,215
2006-08-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,212 27.51 60,852
2006-08-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 27.08 99,802
2006-08-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,133 27.09 84,859
2006-08-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 27.06 114,725
2006-08-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 26.80 49,389
2006-07-31 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,312 26.97 116,282
2006-07-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,423 26.41 116,817
2006-07-25 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,423 26.06 115,267
2006-07-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 27.12 24,982
2006-07-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,290 27.09 34,942
2006-07-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 25.08 92,443
2006-07-05 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,118 25.07 178,464
2006-06-29 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,529 24.99 138,152
2006-06-27 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,396 24.56 58,838
2006-06-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 25.12 92,610
2006-06-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 25.08 92,444
2006-05-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 25.15 106,598
2006-05-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 735 25.00 18,375
2006-05-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,759 25.09 69,223
2006-05-17 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 737 25.10 18,498
2006-05-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 25.19 92,861
2006-05-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 26.00 23,946
2006-05-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,106 26.27 29,054
2006-05-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 26.11 48,120
2006-05-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,133 26.20 82,084
2006-05-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 26.49 112,301
2006-05-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 26.14 48,176
2006-05-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,312 26.19 112,921
2006-04-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,949 27.11 79,941
2006-04-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 27.35 25,192
2006-04-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,290 27.12 34,991
2006-04-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 26.49 97,645
2006-04-05 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,511 26.30 66,047
2006-04-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,607 26.52 122,189
2006-03-29 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,529 25.68 141,957
2006-03-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,396 24.12 57,799
2006-03-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 24.23 89,302
2006-03-21 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,870 24.31 94,075
2006-03-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,659 24.88 41,267
2006-03-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 24.82 105,203
2006-03-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,949 24.60 72,542
2006-03-13 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 23.92 66,128
2006-03-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,082 23.59 143,454
2006-03-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 23.96 66,226
2006-03-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 24.35 179,498
2006-03-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 24.94 183,876
2006-03-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 25.30 186,510
2006-03-06 Russell Charles William (Director) Purchase 4,000 25.10 100,396
2006-02-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 26.43 112,032
2006-02-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 474 25.42 12,049
2006-02-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,838 25.22 71,579
2006-02-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,949 25.03 73,813
2006-02-13 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,580 25.06 64,646
2006-02-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,211 25.00 55,275
2006-02-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,634 26.15 173,505
2006-02-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,474 27.33 40,281
2006-02-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 27.18 50,096
2006-01-31 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,312 27.36 117,954
2006-01-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,474 27.10 39,940
2006-01-25 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,423 28.14 124,463
2006-01-24 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,949 27.36 80,684
2006-01-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 26.82 24,705
2006-01-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,290 26.79 34,561
2006-01-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 26.63 98,158
2006-01-05 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,511 25.55 64,161
2006-01-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,607 25.52 117,570
2005-12-27 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,106 25.02 27,676
2005-12-21 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,898 25.80 152,191
2005-12-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,898 26.41 155,748
2005-12-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,792 26.55 127,218
2005-12-12 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,580 26.52 68,421
2005-12-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,450 26.16 168,699
2005-12-02 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,423 26.10 115,444
2005-12-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 11,058 26.09 288,481
2005-11-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,239 26.11 110,693
2005-11-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 475 25.80 12,255
2005-11-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,787 24.59 142,279
2005-11-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,791 25.50 122,175
2005-11-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 8,109 25.68 208,271
2005-11-02 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 26.35 48,563
2005-10-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,312 26.33 113,534
2005-10-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,474 26.75 39,429
2005-10-25 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 26.65 196,463
2005-10-19 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,211 27.65 61,127
2005-10-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 28.10 103,576
2005-10-03 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 30.39 112,017
2005-09-29 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 29.75 27,399
2005-09-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,450 27.60 178,026
2005-09-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 28.62 52,746
2005-09-20 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,433 27.55 94,579
2005-09-16 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 26.46 87,757
2005-09-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 9,215 26.64 245,459
2005-09-13 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,450 27.53 177,574
2005-09-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,502 27.66 96,865
2005-09-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,608 27.18 125,236
2005-09-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 8,108 26.60 215,632
2005-08-30 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 26.75 98,585
2005-08-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 26.93 49,624
2005-08-24 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 26.77 73,992
2005-08-22 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 25.13 83,359
2005-08-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,318 24.70 57,266
2005-08-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,133 24.38 76,370
2005-08-09 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,003 24.33 170,361
2005-08-05 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,708 24.32 163,151
2005-07-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 23.76 43,780
2005-07-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,391 23.97 81,289
2005-07-07 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 15,665 23.84 373,484
2005-07-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 23.78 87,660
2005-06-29 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 921 23.76 21,882
2005-06-24 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,160 23.76 122,617
2005-06-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,133 23.72 74,327
2005-06-20 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 23.28 77,209
2005-06-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 23.16 85,386
2005-06-14 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 10,251 22.34 228,997
2005-06-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,266 21.92 137,369
2005-06-08 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 21.77 72,204
2005-06-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 21.46 79,119
2005-06-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 4,423 21.58 95,457
2005-05-31 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 7,372 21.51 158,579
2005-05-25 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 21.51 39,642
2005-05-24 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,764 21.78 60,194
2005-05-20 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 21.82 72,380
2005-05-13 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 2,312 21.68 50,126
2005-05-11 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 21.87 40,300
2005-05-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,502 21.87 76,581
2005-05-06 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,898 21.90 129,172
2005-05-04 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,760 22.00 82,727
2005-04-28 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,686 22.40 82,566
2005-04-26 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,391 22.82 77,382
2005-04-01 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 12,901 22.09 285,008
2005-03-24 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 1,843 21.73 40,052
2005-03-23 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 6,450 22.50 145,157
2005-03-18 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 3,317 23.39 77,594
2005-03-15 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 5,713 23.51 134,295
2005-03-10 Lucent Technologies Inc. Master Pension Trust (10% Owner) Sale 369 23.77 8,771

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 Dorchester Minerals Lp (symbol DMLP, CIK number 1172358) see the Securities and Exchange Commission (SEC) website.

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