Cogent Communications Holdings

Lewis H Ferguson sold 2,800 shares of CCOI on 28 May. They now own 21,094 CCOI shares, or a 12% holding decrease.

Sheryl Lynn Kennedy sold 3,300 shares of CCOI on 14 May. They now own 10,245 CCOI shares, or a 24% holding decrease.

Henry W Kilmer sold 2,400 shares of CCOI on 6 March. They now own 41,000 CCOI shares, or a 6% holding decrease.

Lewis H Ferguson sold 2,206 shares of CCOI on 5 March. They now own 20,449 CCOI shares, or a 10% holding decrease.

Sheryl Lynn Kennedy sold 3,300 shares of CCOI on 5 March. They now own 10,100 CCOI shares, or a 25% holding decrease.

Thaddeus Gerard Weed sold 7,300 shares of CCOI on 11 December. They now own 88,200 CCOI shares, or a 8% holding decrease.

Henry W Kilmer sold 4,800 shares of CCOI on 8 December. They now own 33,800 CCOI shares, or a 12% holding decrease.

Henry W Kilmer bought 2,400 shares of CCOI on 1 December. They now own 38,600 CCOI shares, or a 7% holding increase.

Lewis H Ferguson sold 4,000 shares of CCOI on 2 December. They now own 19,267 CCOI shares, or a 17% holding decrease.

Sheryl Lynn Kennedy sold 2,400 shares of CCOI on 11 November. They now own 10,012 CCOI shares, or a 19% holding decrease.

Henry W Kilmer sold 2,400 shares of CCOI on 5 September. They now own 36,200 CCOI shares, or a 6% holding decrease.

Thaddeus Gerard Weed sold 4,900 shares of CCOI on 2 September. They now own 93,100 CCOI shares, or a 5% holding decrease.

Sheryl Lynn Kennedy sold 2,000 shares of CCOI on 21 August. They now own 10,017 CCOI shares, or a 17% holding decrease.

Dave Schaeffer sold 818,909 shares of CCOI on 8 August. They now own 697,143 CCOI shares, or a 54% holding decrease.

Dave Schaeffer sold 1,840,669 shares of CCOI on 7 August. They now own 1,516,052 CCOI shares, or a 55% holding decrease.

Henry W Kilmer sold 2,400 shares of CCOI on 6 June. They now own 38,600 CCOI shares, or a 6% holding decrease.

Lewis H Ferguson sold 1,100 shares of CCOI on 28 May. They now own 18,904 CCOI shares, or a 5% holding decrease.

Sheryl Lynn Kennedy sold 1,450 shares of CCOI on 13 May. They now own 10,049 CCOI shares, or a 13% holding decrease.

Henry W Kilmer sold 2,400 shares of CCOI on 7 March. They now own 41,000 CCOI shares, or a 6% holding decrease.

Sheryl Lynn Kennedy sold 1,425 shares of CCOI on 3 March. They now own 10,147 CCOI shares, or a 12% holding decrease.

Henry W Kilmer sold 4,800 shares of CCOI on 12 December. They now own 33,800 CCOI shares, or a 12% holding decrease.

Thaddeus Gerard Weed sold 4,800 shares of CCOI on 2 December. They now own 88,500 CCOI shares, or a 5% holding decrease.

Blake Bath sold 6,220 shares of CCOI on 21 November. They now own 10,000 CCOI shares, or a 38% holding decrease.

Eve N Howard sold 3,500 shares of CCOI on 11 November. They now own 10,059 CCOI shares, or a 26% holding decrease.

Sheryl Lynn Kennedy sold 1,550 shares of CCOI on 10 September. They now own 10,216 CCOI shares, or a 13% holding decrease.