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United States Natural Gas Utilities

Semco Energy Inc (SEN)

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Ticker: SEN Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
WARSINSKE STEVEN W
Vice President and Controller
1 purchase — total 50 USD
Buy 29 Jun 2007
Value US$3,473,385.10 | Price 442.53 | Shares 49,853
Buy 29 Jun 2007
Value US$3,271,971.64 | Price 422.20 | Shares 43,304
Buy 29 Jun 2007
Value US$100.00 | Price 7.80 | Shares 13
Buy 29 Jun 2007
Value US$100.00 | Price 7.80 | Shares 13
Buy 29 Jun 2007
Value US$50.00 | Price 7.80 | Shares 6
Buy 1 Jun 2007
Value US$50.00 | Price 7.70 | Shares 6
Buy 1 Jun 2007
Value US$200.00 | Price 7.70 | Shares 26
Buy 1 Jun 2007
Value US$100.00 | Price 7.70 | Shares 13
Buy 1 Jun 2007
Value US$50.00 | Price 7.70 | Shares 6
Buy 1 Jun 2007
Value US$100.00 | Price 7.70 | Shares 13
Buy 4 May 2007
Value US$50.00 | Price 7.77 | Shares 6
Buy 4 May 2007
Value US$100.00 | Price 7.77 | Shares 13
Buy 4 May 2007
Value US$200.00 | Price 7.77 | Shares 26
Buy 4 May 2007
Value US$50.00 | Price 7.77 | Shares 6
Buy 4 May 2007
Value US$100.00 | Price 7.77 | Shares 13
Buy 9 Apr 2007
Value US$75.00 | Price 7.61 | Shares 10
Buy 9 Apr 2007
Value US$150.00 | Price 7.61 | Shares 20
Buy 9 Apr 2007
Value US$150.00 | Price 7.61 | Shares 20
Buy 9 Apr 2007
Value US$75.00 | Price 7.61 | Shares 10
Buy 9 Apr 2007
Value US$300.00 | Price 7.61 | Shares 39
Buy 9 Mar 2007
Value US$50.00 | Price 7.70 | Shares 6
Buy 9 Mar 2007
Value US$100.00 | Price 7.70 | Shares 13
Buy 9 Mar 2007
Value US$50.00 | Price 7.70 | Shares 6
Buy 9 Mar 2007
Value US$200.00 | Price 7.70 | Shares 26
Buy 9 Mar 2007
Value US$100.00 | Price 7.70 | Shares 13
Buy 9 Feb 2007
Value US$50.00 | Price 5.97 | Shares 8
Buy 9 Feb 2007
Value US$50.00 | Price 5.97 | Shares 8
Buy 9 Feb 2007
Value US$100.00 | Price 5.97 | Shares 17
Buy 9 Feb 2007
Value US$200.00 | Price 5.97 | Shares 33
Buy 9 Feb 2007
Value US$100.00 | Price 5.97 | Shares 17
Buy 5 Jan 2007
Value US$50.00 | Price 6.12 | Shares 8
Buy 5 Jan 2007
Value US$100.00 | Price 6.12 | Shares 16
Buy 5 Jan 2007
Value US$50.00 | Price 6.12 | Shares 8
Buy 5 Jan 2007
Value US$100.00 | Price 6.12 | Shares 16
Buy 5 Jan 2007
Value US$200.00 | Price 6.12 | Shares 33
Buy 8 Dec 2006
Value US$50.00 | Price 6.08 | Shares 8
Buy 8 Dec 2006
Value US$200.00 | Price 6.08 | Shares 33
Buy 8 Dec 2006
Value US$50.00 | Price 6.08 | Shares 8
Buy 8 Dec 2006
Value US$100.00 | Price 6.08 | Shares 16
Buy 8 Dec 2006
Value US$100.00 | Price 6.08 | Shares 16
Buy 3 Nov 2006
Value US$100.00 | Price 5.82 | Shares 17
Buy 3 Nov 2006
Value US$200.00 | Price 5.82 | Shares 34
Buy 3 Nov 2006
Value US$50.00 | Price 5.82 | Shares 9
Buy 3 Nov 2006
Value US$50.00 | Price 5.82 | Shares 9
Buy 3 Nov 2006
Value US$100.00 | Price 5.82 | Shares 17
Buy 27 May 2005
Value US$530.00 | Price 5.21 | Shares 102
Buy 20 May 2005
Value US$50,500.00 | Price 5.05 | Shares 10,000
Buy 9 Dec 2004
Value US$9,340.00 | Price 4.67 | Shares 2,000
Buy 27 May 2004
Value US$5,750.00 | Price 5.75 | Shares 1,000
Buy 27 May 2004
Value US$12,584.00 | Price 5.72 | Shares 2,200
Buy 26 May 2004
Value US$10,098.00 | Price 5.61 | Shares 1,800
Buy 26 May 2004
Value US$28,350.00 | Price 5.67 | Shares 5,000
Buy 13 May 2004
Value US$17,250.00 | Price 5.75 | Shares 3,000
Buy 12 May 2004
Value US$5,850.00 | Price 5.85 | Shares 1,000
Buy 12 May 2004
Value US$17,250.00 | Price 5.75 | Shares 3,000
Buy 12 May 2004
Value US$5,700.00 | Price 5.70 | Shares 1,000
Buy 12 May 2004
Value US$11,360.00 | Price 5.68 | Shares 2,000
Buy 12 May 2004
Value US$6,900.00 | Price 5.75 | Shares 1,200
Buy 12 May 2004
Value US$18,176.00 | Price 5.68 | Shares 3,200
Buy 14 Dec 2001
Value US$199,500.00 | Price 10.50 | Shares 19,000
Buy 14 Dec 2001
Value US$9,980.00 | Price 9.98 | Shares 1,000
Sale 18 Jan 1999
Value US$301,632.48 | Price 16.68 | Shares 18,085
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2007-07-03 2007-06-29 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
49,853 +30.5%
442.53
US$3,473,385 		49,853 +30.5% 442.53 US$3,473,385
2007-07-03 2007-06-29 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
43,304 +49.8%
422.20
US$3,271,972 		43,304 +49.8% 422.20 US$3,271,972
2007-07-03 2007-06-29 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
93,398 -36.2%
230.01
US$4,460,014 		93,398 -36.2% 230.01 US$4,460,014
2007-07-03 2007-06-29 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
13 +1.5%
7.80
US$100 		13 +1.5% 7.80 US$100
2007-07-03 2007-06-29 B Purchase SMOTHERMAN LANCE S

Sr. Vice President

Officer
6 +0.1%
7.80
US$50 		6 +0.1% 7.80 US$50
2007-06-05 2007-06-01 B Purchase SMOTHERMAN LANCE S

Sr. Vice President

Officer
6 +0.1%
7.70
US$50 		6 +0.1% 7.70 US$50
2007-06-05 2007-06-01 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
26 +0.3%
7.70
US$200 		26 +0.3% 7.70 US$200
2007-06-05 2007-06-01 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
13 +0.1%
7.70
US$100 		13 +0.1% 7.70 US$100
2007-06-05 2007-06-01 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
6 +0.4%
7.70
US$50 		6 +0.4% 7.70 US$50
2007-06-05 2007-06-01 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
13 +1.6%
7.70
US$100 		13 +1.6% 7.70 US$100
2007-05-08 2007-05-04 B Purchase SMOTHERMAN LANCE S

Sr. Vice President

Officer
6 +0.8%
7.77
US$50 		6 +0.8% 7.77 US$50
2007-05-08 2007-05-04 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
13 +0.1%
7.77
US$100 		13 +0.1% 7.77 US$100
2007-05-08 2007-05-04 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
26 +3.6%
7.77
US$200 		26 +3.6% 7.77 US$200
2007-05-08 2007-05-04 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
6 +0.4%
7.77
US$50 		6 +0.4% 7.77 US$50
2007-05-08 2007-05-04 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
13 +1.6%
7.77
US$100 		13 +1.6% 7.77 US$100
2007-04-11 2007-04-09 B Purchase SMOTHERMAN LANCE S

Sr. Vice President

Officer
10 +1.3%
7.61
US$75 		10 +1.3% 7.61 US$75
2007-04-11 2007-04-09 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
20 +2.5%
7.61
US$150 		20 +2.5% 7.61 US$150
2007-04-11 2007-04-09 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
20 +0.2%
7.61
US$150 		20 +0.2% 7.61 US$150
2007-04-11 2007-04-09 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
10 +0.6%
7.61
US$75 		10 +0.6% 7.61 US$75
2007-04-11 2007-04-09 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
39 +5.8%
7.61
US$300 		39 +5.8% 7.61 US$300
2007-03-13 2007-03-09 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
6 +0.4%
7.70
US$50 		6 +0.4% 7.70 US$50
2007-03-13 2007-03-09 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
13 +1.6%
7.70
US$100 		13 +1.6% 7.70 US$100
2007-03-13 2007-03-09 B Purchase SMOTHERMAN LANCE S

Vice President

Officer
6 +0.9%
7.70
US$50 		6 +0.9% 7.70 US$50
2007-03-13 2007-03-09 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
26 +4.0%
7.70
US$200 		26 +4.0% 7.70 US$200
2007-03-13 2007-03-09 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
13 +0.1%
7.70
US$100 		13 +0.1% 7.70 US$100
2007-02-13 2007-02-09 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
8 +0.5%
5.97
US$50 		8 +0.5% 5.97 US$50
2007-02-13 2007-02-09 B Purchase SMOTHERMAN LANCE S

Vice President

Officer
8 +1.1%
5.97
US$50 		8 +1.1% 5.97 US$50
2007-02-13 2007-02-09 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
17 +0.2%
5.97
US$100 		17 +0.2% 5.97 US$100
2007-02-13 2007-02-09 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
33 +5.4%
5.97
US$200 		33 +5.4% 5.97 US$200
2007-02-13 2007-02-09 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
17 +2.2%
5.97
US$100 		17 +2.2% 5.97 US$100
2007-01-08 2007-01-05 B Purchase SMOTHERMAN LANCE S

Vice President

Officer
8 +1.1%
6.12
US$50 		8 +1.1% 6.12 US$50
2007-01-08 2007-01-05 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
16 +0.2%
6.12
US$100 		16 +0.2% 6.12 US$100
2007-01-08 2007-01-05 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
8 +0.5%
6.12
US$50 		8 +0.5% 6.12 US$50
2007-01-08 2007-01-05 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
16 +2.2%
6.12
US$100 		16 +2.2% 6.12 US$100
2007-01-08 2007-01-05 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
33 +5.6%
6.12
US$200 		33 +5.6% 6.12 US$200
2006-12-11 2006-12-08 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
8 +0.5%
6.08
US$50 		8 +0.5% 6.08 US$50
2006-12-11 2006-12-08 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
33 +6.0%
6.08
US$200 		33 +6.0% 6.08 US$200
2006-12-11 2006-12-08 B Purchase SMOTHERMAN LANCE S

Vice President

Officer
8 +1.1%
6.08
US$50 		8 +1.1% 6.08 US$50
2006-12-11 2006-12-08 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
16 +2.2%
6.08
US$100 		16 +2.2% 6.08 US$100
2006-12-11 2006-12-08 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
16 +0.2%
6.08
US$100 		16 +0.2% 6.08 US$100
2006-11-07 2006-11-03 B Purchase DUBAY EUGENE N

Sr. Vice Pres. of Operations

Officer
17 +0.2%
5.82
US$100 		17 +0.2% 5.82 US$100
2006-11-07 2006-11-03 B Purchase CLARK PETER F

Sr. Vice Pres. & Gen. Counsel

Officer
34 +6.6%
5.82
US$200 		34 +6.6% 5.82 US$200
2006-11-07 2006-11-03 B Purchase SMOTHERMAN LANCE S

Vice President

Officer
9 +1.2%
5.82
US$50 		9 +1.2% 5.82 US$50
2006-11-07 2006-11-03 B Purchase WARSINSKE STEVEN W

Vice President and Controller

Officer
9 +0.5%
5.82
US$50 		9 +0.5% 5.82 US$50
2006-11-07 2006-11-03 B Purchase PRENDEVILLE MARK T

Vice Pres & Deputy Gen Counsel

Officer
17 +2.4%
5.82
US$100 		17 +2.4% 5.82 US$100
2005-05-31 2005-05-27 B Purchase NAUGHTON PAUL F Non-Executive Director
102 +inf%
5.21
US$530 		102 +inf% 5.21 US$530
2005-05-23 2005-05-20 B Purchase SCHREIBER GEORGE A JR

President and CEO

Executive Director
10,000 +50.0%
5.05
US$50,500 		10,000 +50.0% 5.05 US$50,500
2004-12-10 2004-12-09 B Purchase ALBERTINE JOHN M Non-Executive Director
2,000 +28.6%
4.67
US$9,340 		2,000 +28.6% 4.67 US$9,340
2004-05-27 2004-05-27 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
1,000 +5.3%
5.75
US$5,750 		1,000 +5.3% 5.75 US$5,750
2004-05-27 2004-05-27 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
2,200 +13.1%
5.72
US$12,584 		2,200 +13.1% 5.72 US$12,584
2004-05-27 2004-05-26 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
1,800 +12.0%
5.61
US$10,098 		1,800 +12.0% 5.61 US$10,098
2004-05-27 2004-05-26 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
5,000 +50.0%
5.67
US$28,350 		5,000 +50.0% 5.67 US$28,350
2004-05-13 2004-05-13 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
3,000 +42.9%
5.75
US$17,250 		3,000 +42.9% 5.75 US$17,250
2004-05-13 2004-05-12 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
1,000 +16.7%
5.85
US$5,850 		1,000 +16.7% 5.85 US$5,850
2004-05-13 2004-05-12 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
3,000 +100.0%
5.75
US$17,250 		3,000 +100.0% 5.75 US$17,250
2004-05-13 2004-05-12 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
1,000 +50.0%
5.70
US$5,700 		1,000 +50.0% 5.70 US$5,700
2004-05-13 2004-05-12 B Purchase
SCHREIBER GEORGE A JR

President and CEO

Executive Director
2,000 +inf%
5.68
US$11,360 		2,000 +inf% 5.68 US$11,360
2004-05-12 2004-05-12 B Purchase
HINTON JOHN R
1,200 +19.7%
5.75
US$6,900 		1,200 +19.7% 5.75 US$6,900
2004-05-12 2004-05-12 B Purchase
HINTON JOHN R
3,200 +110.7%
5.68
US$18,176 		3,200 +110.7% 5.68 US$18,176
2005-10-20 2001-12-14 B Purchase FERRIS JOHN T Non-Executive Director
19,000 +37.3%
10.50
US$199,500 		19,000 +37.3% 10.50 US$199,500
2005-10-20 2001-12-14 B Purchase FERRIS JOHN T Non-Executive Director
1,000 +2.0%
9.98
US$9,980 		1,000 +2.0% 9.98 US$9,980
2005-10-20 1999-01-18 S Sale FERRIS JOHN T Non-Executive Director
18,085 -13.1%
16.68
US$301,632 		18,085 -13.1% 16.68 US$301,632
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