Ticker · CUSIP 21867A105
Holders (tracked)
8
Combined shares
14,937,339
Combined value
$239.45M
Last close
$16.50
Quarter
2025Q4
Price · 1Y$16.50+3.92 (+31.13%)H $19.66 · L $9.73 · Avg Vol 481K
Position opened
Tracked holders · last 8 quarters
-4 vs previous quarter over the last 8.
Price is +2.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
20 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−144,514 shares · 2025Q4Position
- Two Sigma Investments exited2026-02-17−30,551 shares · 2025Q4Position
- D.E. Shaw & Co. trimmed2026-02-17−11,496 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−178,992 shares · 2025Q4Position
- Steve Cohen (Point72) exited2026-02-17−71,735 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+5,578 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+12,242 shares · 2025Q4Position
- John Rogers (Ariel Investments) trimmed2026-02-13−112,568 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+149,219 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−49,600 shares · 2025Q4Position
- Two Sigma Investments added2025-11-14+5,160 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−128,692 shares · 2025Q3Position
- AQR Capital Management opened position2025-11-14+37,576 shares · 2025Q3Position
- Steve Cohen (Point72) added2025-11-14+9,435 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+148,642 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+1,305 shares · 2025Q3Position
- John Rogers (Ariel Investments) added2025-11-14+797,105 shares · 2025Q3Position
- Renaissance Technologies opened position2025-11-13+34,181 shares · 2025Q3Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−43,147 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−65,654 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CLB…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Ken Griffin (Citadel Advisors) | 2023Q2 | $12.31 | +34.0% | $609K |
| Izzy Englander (Millennium Mgmt) | 2023Q3 | $12.41 | +33.0% | $238K |
| AQR Capital Management | 2025Q3 | $13.26 | +24.4% | $822K |
| D.E. Shaw & Co. | 2023Q2 | $14.26 | +15.7% | $2.8M |
| Renaissance Technologies | 2024Q1 | $16.06 | +2.8% | $3.0M |
| John Rogers (Ariel Investments) | 2023Q2 | $19.22 | -14.1% | $225.4M |
| T. Rowe Price | 2023Q2 | $19.76 | -16.5% | $807K |
| Ken Fisher (Fisher Asset Mgmt) | 2023Q2 | $21.15 | -22.0% | $12.8M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to3
- Renaissance Technologies+149,219$2.4M
- AQR Capital Management+12,242$196K
- T. Rowe Price+5,578$90
Trimmed5
- Izzy Englander (Millennium Mgmt)−178,992$2.9M
- Ken Griffin (Citadel Advisors)−144,514$2.3M
- John Rogers (Ariel Investments)−112,568$1.8M
- Ken Fisher (Fisher Asset Mgmt)−49,600$795K
- D.E. Shaw & Co.−11,496$184K
Exited2
- Steve Cohen (Point72)−71,735$887K
- Two Sigma Investments−30,551$378K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2023Q2 | 9 | $426.4M |
| 2023Q3 | 10 | $438.5M |
| 2023Q4 | 9 | $328.1M |
| 2024Q1 | 11 | $351.3M |
| 2024Q2 | 10 | $396.1M |
| 2024Q3 | 11 | $215.9M |
| 2024Q4 | 11 | $191.9M |
| 2025Q1 | 9 | $175.2M |
| 2025Q2 | 10 | $167.6M |
| 2025Q3 | 12 | $190.4M |
| 2025Q4 | 8 | $239.4M |
Who owns CLB
8 super-investors · 2025Q4
Tracked stake
14.94M
shares
Combined value
$239M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | John Rogers Ariel Investments | 13.66M | $219M |
| 2 | Ken Fisher Fisher Asset Mgmt | 775.0K | $12M |
| 3 | Renaissance Technologies | 183.4K | $3M |
| 4 | D.E. Shaw & Co. | 167.9K | $3M |
| 5 | AQR Capital Management | 49.8K | $799K |
| 6 | T. Rowe Price | 48.9K | $785K |
| 7 | Ken Griffin Citadel Advisors | 36.9K | $592K |
| 8 | Izzy Englander Millennium Mgmt | 14.4K | $231K |
Recent moves
20 transactions
- −144,514 · 2025Q4
- −178,992 · 2025Q4
- +5,578 · 2025Q4
- −30,551 · 2025Q4
- +12,242 · 2025Q4
- −71,735 · 2025Q4
- TRIMD.E. Shaw & Co.−11,496 · 2025Q4
- −112,568 · 2025Q4
- +149,219 · 2025Q4
- −49,600 · 2025Q4
- +148,642 · 2025Q3
- +5,160 · 2025Q3
- +9,435 · 2025Q3
- +1,305 · 2025Q3
- −128,692 · 2025Q3
- +797,105 · 2025Q3
- +37,576 · 2025Q3
- +34,181 · 2025Q3
- −43,147 · 2025Q3
- −65,654 · 2024Q3
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