Ticker · CUSIP 19239V302
Holders (tracked)
15
Combined shares
1,149,667
Combined value
$23.68M
Last close
$23.25
Quarter
2025Q4
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 8.
Price is +12.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- T. Rowe Price added2026-02-17+11,362 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+85,219 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−112,993 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−2,391 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−40,956 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+105,100 shares · 2025Q413F
- +24,600 shares · 2025Q413F
- +12,963 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−98,956 shares · 2025Q413F
- D.E. Shaw & Co. opened position2025-11-14+393,129 shares · 2025Q313F
- T. Rowe Price added2025-11-14+1,625 shares · 2025Q313F
- AQR Capital Management added2025-11-14+27,075 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+58,700 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−270,069 shares · 2025Q313F
- Norges Bank (Norway SWF) trimmed2025-11-12−82,143 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CCOI…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2016Q1 | $9.04 | +157.3% | $1.2M |
| D.E. Shaw & Co. | 2016Q3 | $22.42 | +3.7% | $428K |
| D.E. Shaw & Co. | 2016Q3 | $22.42 | +3.7% | $428K |
| D.E. Shaw & Co. | 2016Q3 | $22.42 | +3.7% | $428K |
| Steve Cohen (Point72) | 2019Q2 | $23.04 | +0.9% | $1.3M |
| Steve Cohen (Point72) | 2019Q2 | $23.04 | +0.9% | $1.3M |
| Paul Tudor Jones (Tudor Investment) | 2017Q1 | $35.51 | -34.5% | $274K |
| Paul Tudor Jones (Tudor Investment) | 2017Q1 | $35.51 | -34.5% | $274K |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $40.40 | -42.4% | $3.6M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $40.40 | -42.4% | $3.6M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $40.40 | -42.4% | $3.6M |
| AQR Capital Management | 2016Q2 | $42.25 | -45.0% | $691K |
| Izzy Englander (Millennium Mgmt) | 2016Q2 | $44.52 | -47.8% | $902K |
| Renaissance Technologies | 2016Q1 | $44.77 | -48.1% | $2.1M |
| Ray Dalio (Bridgewater Associates) | 2023Q1 | $63.72 | -63.5% | $301K |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions3
- Steve Cohen (Point72)+105,100$2.3M
- Paul Tudor Jones (Tudor Investment)+24,600$530K
- Ray Dalio (Bridgewater Associates)+12,963$279K
Added to2
- Ken Griffin (Citadel Advisors)+85,219$1.8M
- T. Rowe Price+11,362$245
Trimmed4
- D.E. Shaw & Co.−112,993$2.4M
- Renaissance Technologies−98,956$2.1M
- Izzy Englander (Millennium Mgmt)−40,956$883K
- AQR Capital Management−2,391$52K
Exited0
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Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 8 | $24.33B |
| 2022Q2 | 8 | $22.78B |
| 2022Q3 | 9 | $22.1M |
| 2022Q4 | 11 | $506.9M |
| 2023Q1 | 11 | $544.7M |
| 2023Q2 | 10 | $561.2M |
| 2023Q3 | 11 | $486.9M |
| 2023Q4 | 9 | $654.8M |
| 2024Q1 | 9 | $493.7M |
| 2024Q2 | 7 | $465.1M |
| 2024Q3 | 11 | $142.0M |
| 2024Q4 | 10 | $95.1M |
| 2025Q1 | 7 | $53.1M |
| 2025Q2 | 10 | $44.2M |
| 2025Q3 | 10 | $38.3M |
| 2025Q4 | 15 | $23.7M |
Who owns CCOI
15 super-investors · 2025Q4
Tracked stake
1.15M
shares
Combined value
$24M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New5Added4Trim6
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 280.1K | $6M |
| 2 | Ken Griffin Citadel Advisors | 167.1K | $4M |
| 3 | Ken Griffin Citadel Advisors | 154.1K | $3M |
| 4 | Ken Griffin Citadel Advisors | 149.4K | $3M |
| 5 | Renaissance Technologies | 89.0K | $2M |
| 6 | Steve Cohen Point72 | 56.3K | $1M |
| 7 | Steve Cohen Point72 | 48.8K | $1M |
| 8 | Izzy Englander Millennium Mgmt | 38.8K | $836K |
| 9 | AQR Capital Management | 29.7K | $641K |
| 10 | D.E. Shaw & Co. | 29.0K | $625K |
| 11 | D.E. Shaw & Co. | 18.4K | $397K |
| 12 | Ray Dalio Bridgewater Associates | 13.0K | $279K |
| 13 | Paul Tudor Jones Tudor Investment | 12.8K | $276K |
| 14 | Paul Tudor Jones Tudor Investment | 11.8K | $254K |
| 15 | T. Rowe Price | 51.3K | $1K |
Recent moves
20 transactions
- +11,362 · 2025Q4
- +24,600 · 2025Q4
- TRIMD.E. Shaw & Co.−112,993 · 2025Q4
- −40,956 · 2025Q4
- −2,391 · 2025Q4
- +105,100 · 2025Q4
- +85,219 · 2025Q4
- +12,963 · 2025Q4
- −98,956 · 2025Q4
- +393,129 · 2025Q3
- +27,075 · 2025Q3
- +1,625 · 2025Q3
- +58,700 · 2025Q3
- −270,069 · 2025Q3
- −82,143 · 2024Q3
- −14,660 · 2025Q2
- +3,184 · 2025Q2
- +1,750 · 2025Q2
- −186,359 · 2025Q2
- +31,171 · 2025Q1
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