Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 57 non-open-market transactions 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

57 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 21, 2024 CCOI S 6,220 $83.69 $520,552 10,000 Direct -38.35% Disposed -89.9% (price as of 2026-10-02)
Nov. 20, 2023 CCOI S 9,000 $67.14 $604,260 10,320 Direct -46.58% Disposed -87.4% (price as of 2026-10-02)
Nov. 17, 2023 CCOI S 8,621 $67.17 $579,073 19,320 Direct -30.85% Disposed -87.4% (price as of 2026-10-02)
Nov. 16, 2023 CCOI S 379 $67.00 $25,393 27,941 Direct -1.34% Disposed -87.4% (price as of 2026-10-02)
Aug. 9, 2021 CCOI S 8,750 $77.69 $679,788 15,925 Direct -35.46% Disposed -89.1% (price as of 2026-10-02)
March 5, 2020 CCOI S 5,500 $86.45 $475,475 14,175 Direct -27.95% Disposed -90.2% (price as of 2026-10-02)
Dec. 5, 2019 CCOI S 200 $62.44 $12,488 17,925 Direct -1.10% Disposed -86.5% (price as of 2026-10-02)
Dec. 5, 2019 CCOI S 200 $62.44 $12,488 17,925 Direct -1.10% Disposed -86.5% (price as of 2026-10-02)
Dec. 4, 2019 CCOI S 3,800 $62.31 $236,778 18,125 Direct -17.33% Disposed -86.4% (price as of 2026-10-02)
Dec. 4, 2019 CCOI S 3,800 $62.31 $236,778 18,125 Direct -17.33% Disposed -86.4% (price as of 2026-10-02)
May 9, 2019 CCOI S 10,000 $57.88 $578,800 18,425 Direct -35.18% Disposed -85.4% (price as of 2026-10-02)
Sept. 13, 2018 CCOI S 3,589 $54.94 $197,180 23,175 Direct -13.41% Disposed -84.6% (price as of 2026-10-02)
Sept. 12, 2018 CCOI S 7,411 $55.03 $407,827 26,764 Direct -21.69% Disposed -84.6% (price as of 2026-10-02)
Sept. 11, 2018 CCOI S 11,000 $54.86 $603,460 34,175 Direct -24.35% Disposed -84.6% (price as of 2026-10-02)
Feb. 27, 2012 CCOI S 35,000 $18.47 $646,450 7,100 Direct -83.14% Disposed -54.2% (price as of 2026-10-02)
Jan. 3, 2011 CCOI P 5,275 $14.22 $75,010 39,600 Direct +15.37% Acquired -40.5% (price as of 2026-10-02)
Jan. 4, 2010 CCOI P 7,500 $9.95 $74,625 34,325 Direct +27.96% Acquired -15.0% (price as of 2026-10-02)
Jan. 5, 2009 CCOI P 11,200 $6.70 $75,040 26,825 Direct +71.68% Acquired 26.3% (price as of 2026-10-02)

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
Nov. 22, 2006 CCOI common stock 0 Direct