Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 1 non-open-market transaction below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

1 other filing hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 16, 2015 CCOI S 2,200 $28.03 $61,666 38,800 Direct -5.37% Disposed -66.8% (price as of 2026-10-06)
June 2, 2015 CCOI S 2,250 $31.06 $69,885 41,000 Direct -5.20% Disposed -70.0% (price as of 2026-10-06)
Nov. 19, 2014 CCOI S 1,250 $35.17 $43,962 45,250 Direct -2.69% Disposed -73.5% (price as of 2026-10-06)
Aug. 14, 2014 CCOI S 8,500 $32.75 $278,375 31,500 Direct -21.25% Disposed -71.6% (price as of 2026-10-06)
March 12, 2014 CCOI S 2,000 $35.00 $70,000 43,250 Direct -4.42% Disposed -73.4% (price as of 2026-10-06)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Aug. 1, 2013 CCOI common stock · Direct