There is a long list of 311 institutional holders of CCOI within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of CCOI by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-CCOI table below, the initial column indicates the name of each top institutional holder of CCOI, with a link to that fund's top holdings. The next columns indicate the amount of CCOI stock held by each of the institutional holders of CCOI, followed by the CCOI position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	7,336,041	$557,979	12/31/2023
CCOI	7,336,041	$557,979	12/31/2023
Vanguard Group Inc.	5,081,633	$386,509	12/31/2023
CCOI	5,081,633	$386,509	12/31/2023
State Street Corp	1,814,628	$138,021	12/31/2023
CCOI	1,814,628	$138,021	12/31/2023
Renaissance Technologies LLC	1,611,456	$122,567	12/31/2023
CCOI	1,611,456	$122,567	12/31/2023
Brown Advisory Inc.	1,339,159	$101,856	12/31/2023
CCOI	1,339,159	$101,856	12/31/2023
Harspring Capital Management LLC	1,019,500	$77,543	12/31/2023
CCOI	1,019,500	$77,543	12/31/2023
Geode Capital Management LLC	964,504	$73,368	12/31/2023
CCOI	964,504	$73,368	12/31/2023
Jennison Associates LLC	828,664	$63,028	12/31/2023
CCOI	828,664	$63,028	12/31/2023
Copeland Capital Management LLC	962,311	$62,868	03/31/2024
CCOI	962,311	$62,868	03/31/2024
MIG Capital LLC	820,249	$62,388	12/31/2023
CCOI	820,249	$62,388	12/31/2023
FMR LLC	795,269	$60,488	12/31/2023
CCOI	795,269	$60,488	12/31/2023
Dimensional Fund Advisors LP	722,631	$54,963	12/31/2023
CCOI	722,631	$54,963	12/31/2023
Morgan Stanley	666,297	$50,679	12/31/2023
CCOI	666,297	$50,679	12/31/2023
Norges Bank	663,033	$50,430	12/31/2023
CCOI	663,033	$50,430	12/31/2023
Broad Run Investment Management LLC	638,877	$48,593	12/31/2023
CCOI	638,877	$48,593	12/31/2023
Bank of New York Mellon Corp	636,072	$48,380	12/31/2023
CCOI	636,072	$48,380	12/31/2023
Westwood Holdings Group Inc.	633,500	$48,184	12/31/2023
CCOI	633,500	$48,184	12/31/2023
Invesco Ltd.	631,287	$48,016	12/31/2023
CCOI	631,287	$48,016	12/31/2023
Raymond James & Associates	630,300	$47,941	12/31/2023
CCOI	630,300	$47,941	12/31/2023
Hood River Capital Management LLC	616,906	$46,922	12/31/2023
CCOI	616,906	$46,922	12/31/2023
Boston Financial Mangement LLC	592,027	$45,030	12/31/2023
CCOI	592,027	$45,030	12/31/2023
Citadel Advisors LLC		$43,270	12/31/2023
CCOI	547,394	$41,635	12/31/2023
Call	31,900	$2,426	12/31/2023
Put	10,400	$791	12/31/2023
Northern Trust Corp	565,679	$43,026	12/31/2023
CCOI	565,679	$43,026	12/31/2023
Reaves W H & Co. Inc.	482,532	$36,701	12/31/2023
CCOI	482,532	$36,701	12/31/2023
M&G Investment Management Ltd.	462,399	$35,142	12/31/2023
CCOI	462,399	$35,142	12/31/2023
Charles Schwab Investment Management Inc.	453,769	$34,514	12/31/2023
CCOI	453,769	$34,514	12/31/2023
Global Alpha Capital Management Ltd.	429,600	$32,675	12/31/2023
CCOI	429,600	$32,675	12/31/2023
River Road Asset Management LLC	417,801	$31,778	12/31/2023
CCOI	417,801	$31,778	12/31/2023
Beaconlight Capital LLC		$30,291	12/31/2023
CCOI	341,258	$25,956	12/31/2023
Call	57,000	$4,335	12/31/2023
Blair William & Co. IL	372,679	$28,346	12/31/2023
CCOI	372,679	$28,346	12/31/2023
Price T Rowe Associates Inc. MD	372,062	$28,300	12/31/2023
CCOI	372,062	$28,300	12/31/2023
Senator Investment Group LP	364,403	$27,716	12/31/2023
CCOI	364,403	$27,716	12/31/2023
First Trust Advisors LP	341,635	$25,985	12/31/2023
CCOI	341,635	$25,985	12/31/2023
JPMorgan Chase & Co.	328,575	$24,991	12/31/2023
CCOI	328,575	$24,991	12/31/2023
Standard Life Aberdeen plc	310,547	$23,620	12/31/2023
CCOI	310,547	$23,620	12/31/2023
Tyro Capital Management LLC	255,939	$19,467	12/31/2023
CCOI	255,939	$19,467	12/31/2023
Emerald Advisers LLC	236,031	$17,953	12/31/2023
CCOI	236,031	$17,953	12/31/2023
Capital World Investors	229,490	$17,455	12/31/2023
CCOI	229,490	$17,455	12/31/2023
Principal Financial Group Inc.	225,305	$17,137	12/31/2023
CCOI	225,305	$17,137	12/31/2023
Bank of America Corp DE	219,392	$16,687	12/31/2023
CCOI	219,392	$16,687	12/31/2023
Mirae Asset Global Investments Co. Ltd.	219,326	$16,682	12/31/2023
CCOI	219,326	$16,682	12/31/2023
Goldman Sachs Group Inc.	218,174	$16,594	12/31/2023
CCOI	218,174	$16,594	12/31/2023
Emerald Mutual Fund Advisers Trust	214,726	$16,332	12/31/2023
CCOI	214,726	$16,332	12/31/2023
Legal & General Group Plc	210,931	$16,043	12/31/2023
CCOI	210,931	$16,043	12/31/2023
Ulysses Management LLC	210,542	$16,014	12/31/2023
CCOI	210,542	$16,014	12/31/2023
Nuveen Asset Management LLC	202,307	$15,387	12/31/2023
CCOI	202,307	$15,387	12/31/2023
Advisors Asset Management Inc.	189,470	$14,411	12/31/2023
CCOI	189,470	$14,411	12/31/2023
Herald Investment Management Ltd	184,000	$13,993	12/31/2023
CCOI	184,000	$13,993	12/31/2023
EdgePoint Investment Group Inc.	175,242	$13,329	12/31/2023
CCOI	175,242	$13,329	12/31/2023
Envestnet Asset Management Inc.	172,596	$13,128	12/31/2023
CCOI	172,596	$13,128	12/31/2023

See All: Funds Holding CCOI
See Details: Top 10 Hedge Funds Holding CCOI
Also See: CCOI Insider Buying
Also See: CCOI Holdings Changes

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