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Thursday, December 3, 2009, 2:55AM ET - U.S. Markets open in 6 hours and 35 minutes. Dow Down 0.18% Nasdaq  0.00%
Cogent Communications Group Inc. (CCOI)On Dec 2: 9.11  Up 0.46 (5.32%)  
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Insider TransactionsGet Insider Transactions for:
NET SHARE PURCHASE ACTIVITY
Insider Purchases - Last 6 Months
 SharesTrans
PurchasesN/A0
Sales140,93739
Net Shares Purchased
(Sold)
(140,937)39
Total Insider Shares Held4.39M N/A
% Net Shares Purchased
(Sold)
(3.1%) N/A
Net Institutional Purchases - Prior Qtr to Latest Qtr
 Shares
Net Shares Purchased (Sold)(13,401,800)
% Change in Institutional Shares Held(46.7%)
Data provided by Thomson Financial

INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS
DateInsiderSharesTypeTransactionValue*
1-Dec-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $8.59 per share.$3,573
30-Nov-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $8.29 per share.$8,290
9-Nov-09BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $9.14 per share.$4,570
9-Nov-09SCHAEFFER DAVE
Officer
200,000DirectOption Exercise at $0 per share.N/A
2-Nov-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $9.99 per share.$4,155
30-Oct-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $10.33 per share.$10,330
9-Oct-09KARNES JEFFREY
Officer
4,000DirectAutomatic Sale at $12.43 per share.$49,720
9-Oct-09ONEILL TIMOTHY G
Officer
4,000DirectAutomatic Sale at $12.31 per share.$49,240
9-Oct-09KUMMER RAYMOND B
Officer
4,000DirectAutomatic Sale at $12.30 per share.$49,200
9-Oct-09BEURY ROBERT N JR
Officer
3,500DirectAutomatic Sale at $12.43 per share.$43,505
9-Oct-09WEED THADDEUS GERARD
Officer
20,000DirectAutomatic Sale at $12.44 per share.$248,800
9-Oct-09SCHLEIFER MARK A
Officer
10,000DirectAutomatic Sale at $12.46 per share.$124,600
1-Oct-09KARNES JEFFREY
Officer
500DirectAutomatic Sale at $10.98 per share.$5,490
1-Oct-09ONEILL TIMOTHY G
Officer
500DirectAutomatic Sale at $11.17 per share.$5,585
1-Oct-09KUMMER RAYMOND B
Officer
500DirectAutomatic Sale at $11.17 per share.$5,585
1-Oct-09SCHLEIFER MARK A
Officer
1,250DirectAutomatic Purchase at $11.11 per share.$13,887
1-Oct-09WEED THADDEUS GERARD
Officer
1,666DirectAutomatic Sale at $10.99 per share.$18,309
30-Sep-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $11.28 per share.$11,280
21-Sep-09KARNES JEFFREY
Officer
750DirectAutomatic Sale at $12.07 per share.$9,052
16-Sep-09KUMMER RAYMOND B
Officer
7,000DirectSale at $12.23 per share.$85,610
10-Sep-09HARRISON R REED
Officer
10,000DirectOption Exercise at $6 per share.$60,000
10-Sep-09HARRISON R REED
Officer
10,000DirectAutomatic Sale at $11.03 per share.$110,300
10-Sep-09ONEILL TIMOTHY G
Officer
3,000DirectSale at $11 per share.$33,000
1-Sep-09BEURY ROBERT N JR
Officer
400DirectAutomatic Sale at $9.65 per share.$3,860
1-Sep-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $9.65 per share.$4,014
31-Aug-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $9.52 per share.$9,520
14-Aug-09BROOKS STEVEN D
Director
600DirectSale at $11.15 per share.$6,690
11-Aug-09KARNES JEFFREY
Officer
5,000DirectSale at $11.15 per share.$55,750
7-Aug-09HARRISON R REED
Officer
40,000DirectOption Exercise at $6 per share.$240,000
7-Aug-09HARRISON R REED
Officer
40,000DirectAutomatic Sale at $11.01 per share.$440,400
7-Aug-09WEED THADDEUS GERARD
Officer
10,000DirectAutomatic Sale at $10 per share.$100,000
3-Aug-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $8.34 per share.$3,469
31-Jul-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $8.23 per share.$8,230
29-Jul-09SCHAEFFER DAVE
Officer
100,000DirectOption Exercise at $0 per share.N/A
1-Jul-09KARNES JEFFREY
Officer
625DirectAutomatic Sale at $8.26 per share.$5,162
1-Jul-09ONEILL TIMOTHY G
Officer
500DirectAutomatic Sale at $8.20 per share.$4,100
1-Jul-09WEED THADDEUS GERARD
Officer
1,666DirectAutomatic Sale at $8.26 per share.$13,761
1-Jul-09KUMMER RAYMOND B
Officer
500DirectAutomatic Sale at $8.20 per share.$4,100
1-Jul-09SCHLEIFER MARK A
Officer
1,250DirectAutomatic Sale at $8.22 per share.$10,275
1-Jul-09BEURY ROBERT N JR
Officer
400DirectAutomatic Sale at $8.26 per share.$3,304
30-Jun-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $8.19 per share.$8,189
22-Jun-09KARNES JEFFREY
Officer
750DirectAutomatic Sale at $8.26 per share.$6,195
1-Jun-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $8.19 per share.$3,407
1-Jun-09BEURY ROBERT N JR
Officer
1,000DirectAutomatic Sale at $8.19 per share.$8,189
15-May-09SCHAEFFER DAVE
Officer
100,000DirectOption Exercise at $0 per share.N/A
1-May-09WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $8.47 per share.$3,523
30-Apr-09KARNES JEFFREY
Officer
10,000DirectAutomatic Sale at $8.76 per share.$87,600
30-Apr-09ONEILL TIMOTHY G
Officer
8,000DirectAutomatic Sale at $8.63 per share.$69,040
30-Apr-09WEED THADDEUS GERARD
Officer
10,000DirectAutomatic Sale at $8.75 per share.$87,500
30-Apr-09SCHLEIFER MARK A
Officer
20,000DirectAutomatic Sale at $8.63 per share.$172,600
30-Apr-09KUMMER RAYMOND B
Officer
8,000DirectAutomatic Sale at $8.75 per share.$70,000
30-Apr-09BEURY ROBERT N JR
Officer
7,000DirectAutomatic Sale at $8.76 per share.$61,320
2-Apr-09SCHLEIFER MARK A
Officer
1,250DirectAutomatic Sale at $8.21 per share.$10,262
1-Apr-09KARNES JEFFREY
Officer
625DirectAutomatic Sale at $7.37 per share.$4,606
1-Apr-09ONEILL TIMOTHY G
Officer
500DirectAutomatic Sale at $7.02 per share.$3,510
1-Apr-09WEED THADDEUS GERARD
Officer
1,666DirectAutomatic Sale at $7.38 per share.$12,295
1-Apr-09KUMMER RAYMOND B
Officer
500DirectAutomatic Sale at $7.02 per share.$3,510
1-Apr-09BEURY ROBERT N JR
Officer
400DirectAutomatic Sale at $7.38 per share.$2,952
20-Mar-09KARNES JEFFREY
Officer
937DirectAutomatic Sale at $7.24 per share.$6,783
19-Mar-09WEED THADDEUS GERARD
Officer
6,530DirectAutomatic Sale at $7.40 per share.$48,322
13-Mar-09FERGUSON LEWIS H
Director
6,000DirectSale at $6.83 per share.$40,980
9-Mar-09SCHAEFFER DAVE
Officer
100,000DirectOption Exercise at $0 per share.N/A
8-Jan-09FERGUSON LEWIS H
Director
8,900DirectPurchase at $7.37 per share.$65,593
7-Jan-09FERGUSON LEWIS H
Director
1,500DirectPurchase at $7.24 per share.$10,860
5-Jan-09BATH BLAKE
Director
11,200DirectPurchase at $6.70 per share.$75,040
5-Jan-09WEINGARTEN TIM
Director
11,227DirectPurchase at $6.69 per share.$75,108
5-Jan-09BROOKS STEVEN D
Director
11,000DirectPurchase at $6.65 per share.$73,150
5-Jan-09MARGALIT EREL N
Director
11,360DirectPurchase at $6.60 per share.$74,976
2-Jan-09SCHLEIFER MARK A
Officer
5,000DirectAutomatic Sale at $6.48 per share.$32,400
2-Jan-09KARNES JEFFREY
Officer
2,500DirectAutomatic Sale at $6.69 per share.$16,725
2-Jan-09WEED THADDEUS GERARD
Officer
2,500DirectAutomatic Sale at $6.69 per share.$16,725
2-Jan-09BEURY ROBERT N JR
Officer
2,000DirectAutomatic Sale at $6.67 per share.$13,340
2-Jan-09LIEBHABER RICHARD
Director
11,540DirectPurchase at $6.47 per share.$74,663
2-Jan-09ONEILL TIMOTHY G
Officer
2,000DirectAutomatic Sale at $6.54 per share.$13,080
2-Jan-09KUMMER RAYMOND B
Officer
2,000DirectAutomatic Sale at $6.40 per share.$12,800
23-Dec-08KARNES JEFFREY
Officer
1,874DirectAutomatic Sale at $6.10 per share.$11,431
19-Dec-08BATH BLAKE
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
19-Dec-08WEINGARTEN TIM
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
19-Dec-08BROOKS STEVEN D
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
19-Dec-08LIEBHABER RICHARD
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
19-Dec-08MARGALIT EREL N
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
12-Dec-08KUMMER RAYMOND B
Officer
6,200DirectSale at $5.50 per share.$34,100
4-Dec-08KARNES JEFFREY
Officer
3,000DirectSale at $5.25 per share.$15,750
4-Dec-08WEED THADDEUS GERARD
Officer
284DirectOption Exercise at $0 per share.N/A
2-Dec-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $4.48 per share.$2,240
14-Nov-08ONEILL TIMOTHY G
Officer
1,462DirectOption Exercise at $0 per share.N/A
14-Nov-08KUMMER RAYMOND B
Officer
862DirectOption Exercise at $0 per share.N/A
13-Nov-08BROOKS STEVEN D
Director
6,835DirectAcquisition (Non Open Market) at $0 per share.N/A
3-Nov-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $4.57 per share.$2,285
24-Oct-08ONEILL TIMOTHY G
Officer
1,000DirectOption Exercise at $0 per share.N/A
10-Oct-08BEURY ROBERT N JR
Officer
5,000DirectOption Exercise at $4.88 per share.$24,400
2-Oct-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $7.40 per share.$3,700
2-Sep-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $9.17 per share.$4,585
8-Aug-08BEURY ROBERT N JR
Officer
2,500DirectOption Exercise at $4.88 per share.$12,200
4-Aug-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $10.66 per share.$5,330
2-Jul-08BEURY ROBERT N JR
Officer
500DirectAutomatic Sale at $13.01 per share.$6,505
20-Jun-08SCHLEIFER MARK A
Officer
599DirectOption Exercise at $0 per share.N/A
20-Jun-08SCHLEIFER MARK A
Officer
599DirectAutomatic Sale at $14.89 per share.$8,919
20-Jun-08BEURY ROBERT N JR
Officer
3,000DirectAutomatic Sale at $14.37 per share.$43,110
6-Jun-08SCHLEIFER MARK A
Officer
1,250DirectOption Exercise at $4.88 per share.$6,100
6-Jun-08SCHLEIFER MARK A
Officer
1,250DirectSale at $14.64 per share.$18,300
3-Jun-08WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $16.08 per share.$6,689
2-Jun-08BEURY ROBERT N JR
Officer
354DirectOption Exercise at $0 per share.N/A
2-Jun-08BEURY ROBERT N JR
Officer
354DirectAutomatic Sale at $16.14 per share.$5,713
6-May-08ONEILL TIMOTHY G
Officer
1,000DirectOption Exercise at $4.88 per share.$4,880
6-May-08ONEILL TIMOTHY G
Officer
1,000DirectAutomatic Sale at $22.50 per share.$22,500
2-May-08BEURY ROBERT N JR
Officer
355DirectOption Exercise at $0 per share.N/A
2-May-08BEURY ROBERT N JR
Officer
355DirectAutomatic Sale at $21.74 per share.$7,717
1-May-08WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
1-May-08WEED THADDEUS GERARD
Officer
696DirectAutomatic Sale at $21.17 per share.$14,734
28-Apr-08WEED THADDEUS GERARD
Officer
625DirectOption Exercise at $4.88 per share.$3,050
28-Apr-08WEED THADDEUS GERARD
Officer
625DirectAutomatic Sale at $20 per share.$12,500
16-Apr-08KARNES JEFFREY
Officer
802DirectAutomatic Sale at $19 per share.$15,238
2-Apr-08WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
2-Apr-08WEED THADDEUS GERARD
Officer
280DirectAutomatic Sale at $20 per share.$5,600
2-Apr-08BEURY ROBERT N JR
Officer
355DirectOption Exercise at $0 per share.N/A
2-Apr-08BEURY ROBERT N JR
Officer
355DirectAutomatic Sale at $19.71 per share.$6,997
1-Apr-08WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $19.07 per share.$7,933
20-Mar-08SCHLEIFER MARK A
Officer
600DirectOption Exercise at $0 per share.N/A
20-Mar-08SCHLEIFER MARK A
Officer
600DirectAutomatic Sale at $18.64 per share.$11,184
6-Mar-08ONEILL TIMOTHY G
Officer
1,000DirectOption Exercise at $0 per share.N/A
6-Mar-08ONEILL TIMOTHY G
Officer
1,000DirectAutomatic Sale at $18.13 per share.$18,130
4-Mar-08WEED THADDEUS GERARD
Officer
416DirectAutomatic Sale at $18.54 per share.$7,712
4-Mar-08KUMMER RAYMOND B
Officer
18,800DirectOption Exercise at $0 - $4.88 per share.N/A
3-Mar-08WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
3-Mar-08WEED THADDEUS GERARD
Officer
280DirectAutomatic Sale at $19.37 per share.$5,423
3-Mar-08BEURY ROBERT N JR
Officer
355DirectOption Exercise at $0 per share.N/A
3-Mar-08BEURY ROBERT N JR
Officer
355DirectAutomatic Sale at $19.31 per share.$6,855
29-Feb-08MARGALIT EREL N
Director
7,500DirectSale at $19.14 per share.$143,550
25-Feb-08KARNES JEFFREY
Officer
802DirectAutomatic Sale at $19 per share.$15,238
8-Feb-08WEED THADDEUS GERARD
Officer
5,000DirectAutomatic Sale at $17.58 per share.$87,899
4-Feb-08BEURY ROBERT N JR
Officer
355DirectOption Exercise at $0 per share.N/A
4-Feb-08BEURY ROBERT N JR
Officer
355DirectAutomatic Sale at $20.31 per share.$7,210
1-Feb-08WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
1-Feb-08WEED THADDEUS GERARD
Officer
280DirectAutomatic Sale at $20.30 per share.$5,684
28-Jan-08WEED THADDEUS GERARD
Officer
625DirectOption Exercise at $4.88 per share.$3,050
28-Jan-08WEED THADDEUS GERARD
Officer
625DirectAutomatic Sale at $18.89 per share.$11,806
2-Jan-08BEURY ROBERT N JR
Officer
355DirectOption Exercise at $0 per share.N/A
2-Jan-08WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
2-Jan-08WEED THADDEUS GERARD
Officer
280DirectAutomatic Sale at $23.81 per share.$6,666
2-Jan-08BEURY ROBERT N JR
Officer
355DirectAutomatic Sale at $23.80 per share.$8,449
1-Jan-08FERGUSON LEWIS H
Director
5,712DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08BATH BLAKE
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08KARNES JEFFREY
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08WEINGARTEN TIM
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08BROOKS STEVEN D
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08LIEBHABER RICHARD
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08MARGALIT EREL N
Director
7,500DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08ONEILL TIMOTHY G
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08WEED THADDEUS GERARD
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08KUMMER RAYMOND B
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08SCHLEIFER MARK A
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08BEURY ROBERT N JR
Officer
20,000DirectAcquisition (Non Open Market) at $0 per share.N/A
1-Jan-08SCHAEFFER DAVE
Officer
360,000DirectAcquisition (Non Open Market) at $0 per share.N/A
20-Dec-07SCHLEIFER MARK A
Officer
600DirectOption Exercise at $0 per share.N/A
20-Dec-07SCHLEIFER MARK A
Officer
600DirectAutomatic Sale at $22.80 per share.$13,680
17-Dec-07KARNES JEFFREY
Officer
961DirectAutomatic Sale at $20.89 per share.$20,075
13-Dec-07SCHLEIFER MARK A
Officer
841DirectOption Exercise at $0 - $4.88 per share.N/A
13-Dec-07SCHLEIFER MARK A
Officer
841DirectSale at $21.95 - $21.97 per share.$18,0002
3-Dec-07BEURY ROBERT N JR
Officer
400DirectOption Exercise at $0 per share.N/A
3-Dec-07WEED THADDEUS GERARD
Officer
280DirectOption Exercise at $0 per share.N/A
3-Dec-07WEED THADDEUS GERARD
Officer
280DirectAutomatic Sale at $20.20 per share.$5,656
3-Dec-07BEURY ROBERT N JR
Officer
400DirectAutomatic Sale at $20.64 per share.$8,256
Data provided by EDGAR Online
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown.
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