John Rogers's CLB Position Overview
John Rogers (via Ariel Investments, LLC) currently holds 13.66 M shares of Core Laboratories Inc. (CLB) worth $218.99 M, representing 2.37% of the portfolio. First purchased in 2014-Q2, this long-term strategic position has been held for 45 quarters.
Based on 13F filings since 2013, John Rogers has maintained a long-term strategic position in CLB, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2021, adding 3.54 M shares. Largest reduction occurred in Q1 2021, reducing 732,059 shares.
Analysis based on 13F filings available since 2013 Q2
John Rogers's Core Laboratories (CLB) Holding Value Over Time
Track share changes against reported price movement
Quarterly Core Laboratories (CLB) Trades by John Rogers
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -112,568 | Reduce 0.82% | 13.66 M | $16.03 |
| Q3 2025 | +797,105 | Add 6.14% | 13.77 M | $12.36 |
| Q2 2025 | +2.63 M | Add 25.47% | 12.98 M | $11.52 |
| Q1 2025 | +709,455 | Add 7.37% | 10.34 M | $14.99 |
| Q4 2024 | -412,686 | Reduce 4.11% | 9.63 M | $17.31 |
| Q3 2024 | -247,040 | Reduce 2.40% | 10.05 M | $18.53 |
| Q2 2024 | -533,361 | Reduce 4.93% | 10.29 M | $20.29 |
| Q1 2024 | +1.84 M | Add 20.44% | 10.83 M | $17.08 |
| Q4 2023 | -75,319 | Reduce 0.83% | 8.99 M | $17.66 |
| Q3 2023 | -568,005 | Reduce 5.90% | 9.06 M | $24.01 |
| Q2 2023 | +122,495 | Add 1.29% | 9.63 M | $23.25 |
| Q1 2023 | -193,894 | Reduce 2.00% | 9.51 M | $22.05 |
| Q4 2022 | -62,193 | Reduce 0.64% | 9.7 M | $20.27 |
| Q3 2022 | +581,090 | Add 6.33% | 9.77 M | $13.48 |
| Q2 2022 | +985,681 | Add 12.02% | 9.18 M | $19.81 |
| Q1 2022 | +394,237 | Add 5.05% | 8.2 M | $31.63 |
| Q4 2021 | +3.54 M | Add 83.21% | 7.8 M | $22.31 |
| Q3 2021 | +678,856 | Add 18.96% | 4.26 M | $27.75 |
| Q2 2021 | -208,150 | Reduce 5.49% | 3.58 M | $38.95 |
| Q1 2021 | -732,059 | Reduce 16.19% | 3.79 M | $28.79 |
| Q4 2020 | +1.34 M | Add 42.15% | 4.52 M | $26.51 |
| Q3 2020 | +1.1 M | Add 52.58% | 3.18 M | $15.26 |
| Q2 2020 | +2.08 M | New Buy | 2.08 M | $20.32 |
| Q3 2019 | -448,977 | Sold Out | 0 | $0.00 |
| Q2 2019 | -4,736 | Reduce 1.04% | 448,977 | $52.28 |
| Q1 2019 | -1,560 | Reduce 0.34% | 453,713 | $68.93 |
| Q4 2018 | -45,087 | Reduce 9.01% | 455,273 | $59.66 |
| Q3 2018 | +9,445 | Add 1.92% | 500,360 | $115.83 |
| Q2 2018 | -907 | Reduce 0.18% | 490,915 | $126.21 |
| Q1 2018 | -2,278 | Reduce 0.46% | 491,822 | $108.22 |
| Q4 2017 | +41,619 | Add 9.20% | 494,100 | $109.55 |
| Q3 2017 | +129,098 | Add 39.92% | 452,481 | $98.70 |
| Q2 2017 | +11,237 | Add 3.60% | 323,383 | $101.27 |
| Q1 2017 | +37,802 | Add 13.78% | 312,146 | $115.52 |
| Q4 2016 | +11,720 | Add 4.46% | 274,344 | $120.04 |
| Q3 2016 | +12,647 | Add 5.06% | 262,624 | $112.33 |
| Q2 2016 | -55,492 | Reduce 18.17% | 249,977 | $123.89 |
| Q1 2016 | +23,320 | Add 8.27% | 305,469 | $112.41 |
| Q4 2015 | +18,177 | Add 6.89% | 282,149 | $108.74 |
| Q3 2015 | +26,883 | Add 11.34% | 263,972 | $99.80 |
| Q2 2015 | +29,572 | Add 14.25% | 237,089 | $114.04 |
| Q1 2015 | +151,482 | Add 270.33% | 207,517 | $104.49 |
| Q4 2014 | +13,438 | Add 31.55% | 56,035 | $120.34 |
| Q3 2014 | +22,743 | Add 114.55% | 42,597 | $146.35 |
| Q2 2014 | +19,854 | New Buy | 19,854 | $167.07 |
John Rogers's Core Laboratories Investment FAQs
John Rogers first purchased Core Laboratories Inc. (CLB) in Q2 2014, acquiring 19,854 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
John Rogers has held Core Laboratories Inc. (CLB) for 45 quarters since Q2 2014.
John Rogers's largest addition to Core Laboratories Inc. (CLB) was in Q4 2021, adding 7,804,307 shares worth $174.11 M.
According to the latest 13F filing for Q4 2025, John Rogers's firm, Ariel Investments, LLC, owns 13,661,000 shares of Core Laboratories Inc. (CLB), valued at approximately $218.99 M.
As of the Q4 2025 filing, Core Laboratories Inc. (CLB) represents approximately 2.37% of John Rogers's publicly disclosed stock portfolio, making it one of their key holdings.
John Rogers's peak holding in Core Laboratories Inc. (CLB) was 13,773,568 shares, as reported at the end of Q3 2025.