Ticker · CUSIP 178587101
Holders (tracked)
6
Combined shares
506,657
Combined value
$3.40M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-2 vs previous quarter over the last 8.
SEC event timeline
16 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−75,546 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−119,591 shares · 2025Q413F
- Two Sigma Investments exited2026-02-17−14,851 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−162,386 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+23,790 shares · 2025Q413F
- AQR Capital Management added2026-02-17+2,506 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−480,115 shares · 2025Q413F
- Mario Gabelli (GAMCO) added2026-02-05+22,000 shares · 2025Q413F
- −45,328 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−154,649 shares · 2025Q313F
- T. Rowe Price added2025-11-14+1,500 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+347,119 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−47,173 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−38,664 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−702,300 shares · 2025Q313F
- Mario Gabelli (GAMCO) opened position2025-11-12+28,000 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Steve Cohen (Point72)+23,790$166K
Added to2
- Mario Gabelli (GAMCO)+22,000$154K
- AQR Capital Management+2,506$18K
Trimmed2
- Izzy Englander (Millennium Mgmt)−162,386$1.1M
- D.E. Shaw & Co.−119,591$836K
Exited3
- Renaissance Technologies−480,115$3.3M
- Ken Griffin (Citadel Advisors)−75,546$526K
- Two Sigma Investments−14,851$103K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 7 | $100.4M |
| 2022Q2 | 9 | $71.4M |
| 2022Q3 | 6 | $52K |
| 2022Q4 | 9 | $33.3M |
| 2023Q1 | 9 | $29.2M |
| 2023Q2 | 9 | $26.4M |
| 2023Q3 | 8 | $19.9M |
| 2023Q4 | 8 | $28.6M |
| 2024Q1 | 9 | $22.9M |
| 2024Q2 | 9 | $30.2M |
| 2024Q3 | 9 | $14.7M |
| 2024Q4 | 10 | $15.0M |
| 2025Q1 | 10 | $11.9M |
| 2025Q2 | 7 | $9.8M |
| 2025Q3 | 8 | $9.0M |
| 2025Q4 | 6 | $3.4M |
Who owns CIO
6 super-investors · 2025Q4
Tracked stake
506.7K
shares
Combined value
$3M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim2Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 291.6K | $2M |
| 2 | D.E. Shaw & Co. | 72.8K | $509K |
| 3 | Mario Gabelli GAMCO | 50.0K | $350K |
| 4 | AQR Capital Management | 47.5K | $332K |
| 5 | Steve Cohen Point72 | 23.8K | $166K |
| 6 | T. Rowe Price | 21.0K | $147 |
Recent moves
20 transactions
- +2,506 · 2025Q4
- −14,851 · 2025Q4
- −75,546 · 2025Q4
- TRIMD.E. Shaw & Co.−119,591 · 2025Q4
- −162,386 · 2025Q4
- +23,790 · 2025Q4
- −480,115 · 2025Q4
- +22,000 · 2025Q4
- −45,328 · 2025Q3
- TRIMD.E. Shaw & Co.−154,649 · 2025Q3
- −38,664 · 2025Q3
- +347,119 · 2025Q3
- −47,173 · 2025Q3
- +1,500 · 2025Q3
- −702,300 · 2025Q3
- +28,000 · 2025Q3
- −43,481 · 2025Q2
- TRIMD.E. Shaw & Co.−35,860 · 2025Q2
- −56,330 · 2025Q2
- +2,785 · 2025Q2
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