Insider Trading activities of Nstar/ma insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Nstar/ma since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Nstar/ma since year 2005. Table 2 shows the detailed insider transactions of Nstar/ma since 2005. The reporting company's ticker symbol is NST. The reporting company's CIK number is 1035675.
The total value of stock buying since 2005 is $987,450.
The total value of stock sales since 2005 is $74,959,896.
The total value of stock option exercises since 2005 is $46,838,648.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Nstar/ma (NST).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2011-11 0 $0 30,000 $1,350,000 30,000 $679,800
2010-10 0 $0 35,333 $1,408,770 30,333 $1,045,062
2010-09 0 $0 10,000 $395,000 10,000 $368,900
2010-07 0 $0 10,000 $380,500 0 $0
2010-05 0 $0 11,778 $441,030 0 $0
2010-04 0 $0 204,547 $7,550,597 183,667 $5,078,295
2010-03 0 $0 230,512 $8,070,849 205,333 $4,493,053
2009-12 0 $0 16,667 $600,012 16,667 $501,510
2009-10 0 $0 7,000 $222,050 6,000 $166,380
2009-09 0 $0 197,455 $6,405,508 57,000 $1,524,869
2009-08 0 $0 1,600 $51,200 0 $0
2009-07 0 $0 29,875 $962,585 25,000 $681,637
2009-05 0 $0 911 $26,264 0 $0
2009-02 0 $0 35,435 $1,239,175 20,000 $449,320
2009-01 0 $0 20,831 $718,586 20,000 $441,200
2008-12 0 $0 49,367 $1,778,695 49,367 $1,257,864
2008-11 0 $0 44,571 $1,551,918 400 $11,092
2008-09 0 $0 6,666 $249,975 6,666 $197,313
2008-08 0 $0 107,593 $3,456,479 107,593 $3,042,831
2008-07 0 $0 93,217 $2,966,759 42,409 $1,113,349
2008-05 30,000 $987,450 0 $0 0 $0
2008-02 0 $0 690 $22,231 0 $0
2007-11 0 $0 110,900 $3,810,984 110,900 $2,956,187
2007-08 0 $0 1,845 $59,040 0 $0
2007-05 0 $0 324,267 $6,304,037 280,332 $6,633,728
2007-02 0 $0 17,789 $95,626 0 $0
2006-11 0 $0 6,800 $0 0 $0
2006-10 0 $0 656,285 $22,577,216 636,667 $13,850,259
2006-08 0 $0 53,000 $0 53,000 $1,168,200
2006-07 0 $0 50,333 $1,568,712 48,333 $1,177,799
2005-08 0 $0 23,167 $696,098 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Nstar/ma insiders (NST)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-11-08 Schweiger Werner J (SVP - Operations) Sale 30,000 45.00 1,350,000
2011-11-08 Schweiger Werner J (SVP - Operations) Option Ex 30,000 22.66 679,800
2010-10-05 Weafer Robert J Jr (VP, Controller & CAO) Sale 5,000 40.00 200,000
2010-10-04 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 30,333 39.85 1,208,770
2010-10-04 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Option Ex 30,333 34.45 1,045,062
2010-09-28 Weafer Robert J Jr (VP, Controller & CAO) Sale 10,000 39.50 395,000
2010-09-28 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 10,000 36.89 368,900
2010-07-26 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 10,000 38.05 380,500
2010-05-12 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 1,555 36.75 57,146
2010-05-03 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 5,223 37.60 196,384
2010-05-03 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 5,000 37.50 187,500
2010-04-27 Judge James J (SVP & CFO) Sale 27,170 37.05 1,006,621
2010-04-27 Judge James J (SVP & CFO) Option Ex 27,170 27.18 738,399
2010-04-26 Judge James J (SVP & CFO) Sale 117,830 37.03 4,363,244
2010-04-26 Judge James J (SVP & CFO) Option Ex 117,830 27.18 3,202,265
2010-04-26 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 20,000 37.05 741,040
2010-04-26 Horan Douglas S (SVP - Secretary & Genl Counsel) Option Ex 20,000 28.66 573,300
2010-04-23 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 16,000 37.00 592,000
2010-04-23 Horan Douglas S (SVP - Secretary & Genl Counsel) Option Ex 16,000 29.60 473,600
2010-04-05 Weafer Robert J Jr (VP, Controller & CAO) Sale 2,667 36.00 96,012
2010-04-05 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 2,667 34.02 90,731
2010-04-05 Judge James J (SVP & CFO) Sale 20,880 36.00 751,680
2010-03-16 Weafer Robert J Jr (VP, Controller & CAO) Sale 5,333 35.50 189,321
2010-03-16 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 5,333 32.45 173,055
2010-03-12 May Thomas J (Chr, President, CEO & Trustee) Sale 51,827 35.00 1,814,100
2010-03-12 May Thomas J (Chr, President, CEO & Trustee) Option Ex 51,827 21.60 1,119,463
2010-03-11 May Thomas J (Chr, President, CEO & Trustee) Sale 35,419 35.00 1,239,700
2010-03-11 May Thomas J (Chr, President, CEO & Trustee) Option Ex 35,419 21.60 765,050
2010-03-10 May Thomas J (Chr, President, CEO & Trustee) Sale 991 35.05 34,732
2010-03-10 May Thomas J (Chr, President, CEO & Trustee) Option Ex 991 21.60 21,405
2010-03-09 May Thomas J (Chr, President, CEO & Trustee) Sale 26,047 35.00 911,671
2010-03-09 May Thomas J (Chr, President, CEO & Trustee) Option Ex 26,047 21.60 562,615
2010-03-08 Weafer Robert J Jr (VP, Controller & CAO) Sale 7,000 35.00 245,000
2010-03-08 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 4,492 35.00 157,220
2010-03-08 May Thomas J (Chr, President, CEO & Trustee) Sale 99,403 35.00 3,479,105
2010-03-08 May Thomas J (Chr, President, CEO & Trustee) Option Ex 85,716 21.60 1,851,465
2009-12-21 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 16,667 36.00 600,012
2009-12-21 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Option Ex 16,667 30.09 501,510
2009-10-06 Zimon Eugene J (SVP - IT (retired)) Sale 1,000 32.03 32,030
2009-10-01 Zimon Eugene J (SVP - IT (retired)) Sale 6,000 31.67 190,020
2009-10-01 Zimon Eugene J (SVP - IT (retired)) Option Ex 6,000 27.73 166,380
2009-09-30 Zimon Eugene J (SVP - IT (retired)) Sale 100 31.96 3,196
2009-09-16 Zimon Eugene J (SVP - IT (retired)) Sale 9,000 32.73 294,542
2009-09-16 Zimon Eugene J (SVP - IT (retired)) Option Ex 9,000 28.98 260,793
2009-09-16 May Thomas J (Chr, President, CEO & Trustee) Sale 140,355 32.55 4,568,555
2009-09-15 Zimon Eugene J (SVP - IT (retired)) Sale 3,000 32.46 97,380
2009-09-15 Zimon Eugene J (SVP - IT (retired)) Option Ex 3,000 27.73 83,190
2009-09-14 Zimon Eugene J (SVP - IT (retired)) Sale 32,061 32.13 1,030,119
2009-09-14 Zimon Eugene J (SVP - IT (retired)) Option Ex 32,061 27.07 867,763
2009-09-11 Zimon Eugene J (SVP - IT (retired)) Sale 939 32.03 30,076
2009-09-11 Zimon Eugene J (SVP - IT (retired)) Option Ex 939 24.20 22,723
2009-09-10 Zimon Eugene J (SVP - IT (retired)) Sale 4,000 31.84 127,360
2009-09-10 Zimon Eugene J (SVP - IT (retired)) Option Ex 4,000 24.20 96,800
2009-09-08 Zimon Eugene J (SVP - IT (retired)) Sale 8,000 31.78 254,280
2009-09-08 Zimon Eugene J (SVP - IT (retired)) Option Ex 8,000 24.20 193,600
2009-08-18 Zimon Eugene J (SVP - IT (resigned)) Sale 1,600 32.00 51,200
2009-07-30 Weafer Robert J Jr (VP, Controller & CAO) Sale 4,000 32.50 130,000
2009-07-30 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 4,000 27.73 110,920
2009-07-30 Zimon Eugene J (SVP - Information Technology) Sale 21,000 32.36 679,560
2009-07-30 Zimon Eugene J (SVP - Information Technology) Option Ex 21,000 27.18 570,717
2009-07-27 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 2,500 31.76 79,400
2009-07-16 Zimon Eugene J (SVP - Information Technology) Sale 2,375 31.00 73,625
2009-05-15 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 911 28.83 26,264
2009-02-06 Zimon Eugene J (SVP - Information Technology) Sale 25,000 34.96 873,950
2009-02-06 Zimon Eugene J (SVP - Information Technology) Option Ex 20,000 22.47 449,320
2009-02-06 May Thomas J (Chr, President, CEO & Trustee) Sale 10,435 35.00 365,225
2009-01-30 Schweiger Werner J (SVP - Operations) Sale 20,000 34.50 690,000
2009-01-30 Schweiger Werner J (SVP - Operations) Option Ex 20,000 22.06 441,200
2009-01-30 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 831 34.40 28,586
2008-12-08 Weafer Robert J Jr (VP, Controller & CAO) Sale 6,667 36.50 243,345
2008-12-08 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 6,667 29.60 197,343
2008-12-05 Weafer Robert J Jr (VP, Controller & CAO) Sale 4,000 36.00 144,000
2008-12-05 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 4,000 27.73 110,920
2008-12-05 Judge James J (SVP, Treasurer & CFO) Sale 35,000 36.00 1,260,000
2008-12-05 Judge James J (SVP, Treasurer & CFO) Option Ex 35,000 24.20 847,000
2008-12-03 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 3,700 35.50 131,350
2008-12-03 Horan Douglas S (SVP - Secretary & Genl Counsel) Option Ex 3,700 27.73 102,601
2008-11-25 Horan Douglas S (SVP - Secretary & Genl Counsel) Sale 400 35.50 14,200
2008-11-25 Horan Douglas S (SVP - Secretary & Genl Counsel) Option Ex 400 27.73 11,092
2008-11-24 May Thomas J (Chr, President, CEO & Trustee) Sale 43,056 34.88 1,501,793
2008-11-21 Judge James J (SVP, Treasurer & CFO) Sale 1,115 32.22 35,925
2008-09-19 Weafer Robert J Jr (VP, Controller & CAO) Sale 6,666 37.50 249,975
2008-09-19 Weafer Robert J Jr (VP, Controller & CAO) Option Ex 6,666 29.60 197,313
2008-08-08 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 60,828 32.13 1,954,402
2008-08-08 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Option Ex 60,828 28.66 1,743,634
2008-08-07 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 7,840 32.14 251,976
2008-08-07 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Option Ex 7,840 27.73 217,402
2008-08-01 Schweiger Werner J (SVP - Operations) Sale 4,591 32.00 146,912
2008-08-01 Schweiger Werner J (SVP - Operations) Option Ex 4,591 22.06 101,277
2008-07-31 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 1,922 31.80 61,119
2008-07-30 Schweiger Werner J (SVP - Operations) Sale 22,409 32.12 719,889
2008-07-30 Schweiger Werner J (SVP - Operations) Option Ex 15,409 22.06 339,922
2008-07-29 Manning Timothy R (SVP - Human Resources) Sale 58,323 31.73 1,850,588
2008-07-29 Manning Timothy R (SVP - Human Resources) Option Ex 26,437 28.66 757,816
2008-07-28 Manning Timothy R (SVP - Human Resources) Sale 10,563 31.73 335,163
2008-07-28 Manning Timothy R (SVP - Human Resources) Option Ex 563 27.73 15,611
2008-05-13 Dignan Thomas G Jr Buy 30,000 32.92 987,450
2008-02-08 Nolan Joseph R Jr (SVP - Cust & Corp Relations) Sale 690 32.22 22,231
2007-11-20 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 21,600 35.00 756,000
2007-11-20 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Option Ex 21,600 29.60 639,360
2007-11-14 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 2,800 35.00 98,000
2007-11-14 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Option Ex 2,800 29.60 82,880
2007-11-09 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 31,500 34.59 1,089,459
2007-11-09 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Option Ex 31,500 28.66 902,947
2007-11-06 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 55,000 33.96 1,867,525
2007-11-06 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Option Ex 55,000 24.20 1,331,000
2007-08-01 Nolan Joseph R Jr (SVP-Cust & Corp Rel) Sale 1,845 32.00 59,040
2007-05-18 Nolan Joseph R Jr (SVP-Cust & Corp Rel) Sale 1,933 36.50 70,554
2007-05-18 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 5,000 36.50 182,500
2007-05-18 Zimon Eugene J (SVP - Info Tech) Sale 1,000 .00 0
2007-05-09 Nolan Joseph R Jr (SVP-Cust & Corp Rel) Sale 34,999 .00 0
2007-05-09 Nolan Joseph R Jr (SVP-Cust & Corp Rel) Option Ex 34,999 27.18 951,132
2007-05-09 Judge James J (SVP, Treasurer and CFO) Sale 100 37.10 3,710
2007-05-09 Zimon Eugene J (SVP - Info Tech) Sale 1,000 37.08 37,080
2007-05-09 May Thomas J (Chr, Pres, CEO & Trustee) Sale 214,902 18.50 3,975,687
2007-05-09 May Thomas J (Chr, Pres, CEO & Trustee) Option Ex 200,000 22.66 4,532,000
2007-05-08 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 5,000 37.00 185,000
2007-05-07 Weafer Robert J Jr (VP, Controller and CAO) Sale 10,000 36.75 367,500
2007-05-07 Weafer Robert J Jr (VP, Controller and CAO) Option Ex 10,000 25.96 259,650
2007-05-07 Manning Timothy R (SVP - Human Resources) Sale 20,333 36.66 745,407
2007-05-07 Manning Timothy R (SVP - Human Resources) Option Ex 20,333 25.96 527,946
2007-05-07 Judge James J (SVP, Treasurer and CFO) Sale 10,000 36.91 369,099
2007-05-07 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Sale 20,000 18.38 367,500
2007-05-07 Horan Douglas S (SVP, Sec'y & Gen'l Counsel) Option Ex 15,000 24.20 363,000
2007-02-07 Nolan Joseph R Jr (SVP-Cust & Corp Rel) Sale 2,792 34.25 95,626
2007-02-05 Schweiger Werner J (SVP - Operations) Sale 14,997 .00 0
2006-11-08 Horan Douglas S (SVP, Secty Genl Counsel) Sale 6,800 .00 0
2006-10-30 Weafer Robert J Jr (VP, Controller and CAO) Sale 17,517 17.30 303,044
2006-10-30 Weafer Robert J Jr (VP, Controller and CAO) Option Ex 6,667 29.60 197,343
2006-10-30 Nolan Joseph R Jr (SVP - Cust & Corp. Rel.) Sale 32,768 34.60 1,133,772
2006-10-30 Nolan Joseph R Jr (SVP - Cust & Corp. Rel.) Option Ex 24,000 22.90 549,600
2006-10-30 Judge James J (SVP, Treasurer and CFO) Sale 148,000 34.90 5,165,200
2006-10-30 Judge James J (SVP, Treasurer and CFO) Option Ex 148,000 22.15 3,277,608
2006-10-30 Horan Douglas S (SVP, Secretary, Genl Counsel) Sale 148,000 34.90 5,165,200
2006-10-30 Horan Douglas S (SVP, Secretary, Genl Counsel) Option Ex 148,000 22.15 3,277,608
2006-10-30 Zimon Eugene J (SVP - Info Tech) Sale 30,000 34.60 1,038,000
2006-10-30 Zimon Eugene J (SVP - Info Tech) Option Ex 30,000 22.13 663,900
2006-10-30 May Thomas J (Chairman, Pres, CEO & Trustee) Sale 280,000 34.90 9,772,000
2006-10-30 May Thomas J (Chairman, Pres, CEO & Trustee) Option Ex 280,000 21.02 5,884,200
2006-08-08 Weafer Robert J Jr (VP Controller and CAO) Sale 18,000 .00 0
2006-08-08 Weafer Robert J Jr (VP Controller and CAO) Option Ex 18,000 22.90 412,200
2006-08-04 Schweiger Werner J (SVP - Operations) Sale 35,000 .00 0
2006-08-04 Schweiger Werner J (SVP - Operations) Option Ex 35,000 21.60 756,000
2006-07-31 Manning Timothy R (SVP- HUMAN RESOURCES) Sale 33,333 31.16 1,038,822
2006-07-31 Manning Timothy R (SVP- HUMAN RESOURCES) Option Ex 33,333 25.14 837,824
2006-07-31 Zimon Eugene J (SVP INFO-TECH) Sale 17,000 31.17 529,890
2006-07-31 Zimon Eugene J (SVP INFO-TECH) Option Ex 15,000 22.66 339,975
2005-08-01 Weafer Robert J Jr (VP Controller and CA) Sale 23,167 30.05 696,098

Insider trading activities including stock purchases, stock sales, and option exercises of NST listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Nstar/ma (symbol NST, CIK number 1035675) see the Securities and Exchange Commission (SEC) website.