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CCOI - As of  06/17/24, 05:33:47 AM:   28 Insider Transactions.

Sector: Technology    Industry: Diversified Communication Services
Prev Close:$42.69  Avg Vol(3m): 380,292  P/E: 194.00  EPS: 0.22

Email this page to a friend.    Insider Transactions for CCOI

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-02-13 11:29:29.0 COGENT COMMUNICATIONS HOLDINGS CCOI RENAISSANCE TECHNOLOGIES LLC 7.66% view
S 2020-02-11 19:29:22.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 10.05% view
S 2020-02-04 11:53:15.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 14.7% view
B 2019-05-10 12:06:56.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 10.3% view
B 2019-02-13 10:18:16.0 COGENT COMMUNICATIONS HOLDINGS CCOI RENAISSANCE TECHNOLOGIES LLC 7.35% view
S 2019-02-11 08:55:48.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 9.84% view
B 2019-01-24 13:43:52.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 14.8% view
B 2018-03-12 12:30:13.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 10.01% view
B 2018-02-14 11:27:48.0 COGENT COMMUNICATIONS HOLDINGS CCOI RENAISSANCE TECHNOLOGIES LLC 6.04% view
S 2018-02-13 09:35:34.0 COGENT COMMUNICATIONS HOLDINGS CCOI FMR LLC 4.478% view
S 2018-02-08 19:45:19.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 9.93% view
S 2018-02-07 10:15:03.0 COGENT COMMUNICATIONS HOLDINGS CCOI FRONTIER CAPITAL MANAGEMENT CO LLC 2.734% view
B 2018-01-19 14:03:41.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 13.7% view
S 2017-02-14 10:55:12.0 COGENT COMMUNICATIONS HOLDINGS CCOI FMR LLC 6.475% view
S 2017-02-10 16:08:03.0 COGENT COMMUNICATIONS HOLDINGS CCOI FRONTIER CAPITAL MANAGEMENT CO LLC 6.26% view
S 2017-02-10 09:41:50.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 10.32% view
B 2017-01-12 11:22:50.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 10.3% view
B 2016-08-10 08:27:45.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 10.33% view
B 2016-05-10 11:17:58.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 10.0% view
B 2016-02-12 09:01:36.0 COGENT COMMUNICATIONS HOLDINGS CCOI FMR LLC 11.22% view
S 2016-02-11 18:10:36.0 COGENT COMMUNICATIONS HOLDINGS CCOI FRONTIER CAPITAL MANAGEMENT CO LLC 8.64% view
B 2016-02-11 10:31:19.0 COGENT COMMUNICATIONS HOLDINGS CCOI VANGUARD GROUP INC 7.7% view
B 2016-01-26 08:19:30.0 COGENT COMMUNICATIONS HOLDINGS CCOI BlackRock Inc 6.8% view
S 2015-10-05 09:34:34.0 COGENT COMMUNICATIONS HOLDINGS CCOI COLUMBIA WANGER ASSET MANAGEMENT LLC n/a view
B 2015-07-10 07:47:17.0 COGENT COMMUNICATIONS HOLDINGS CCOI FMR LLC 10.523% view
B 2015-02-13 10:09:45.0 COGENT COMMUNICATIONS HOLDINGS CCOI FMR LLC 7.661% view
B 2015-02-12 17:58:30.0 COGENT COMMUNICATIONS HOLDINGS CCOI FRONTIER CAPITAL MANAGEMENT CO LLC 9.86% view
S 2015-02-12 09:41:25.0 COGENT COMMUNICATIONS HOLDINGS CCOI Sarbit Advisory Services Inc 0.0% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.