Core LaboratoriesCLB
13F holders, Q1 2026 (March 31)190holders +2
18new positions
18sold out
7famous investors
$16.79avg. 13F price*
At the end of Q1 2026, 190 institutions reported holding Core Laboratories Inc. (CLB) in their 13F filings, up 2 from Q4 2025. 18 opened new positions and 18 sold out. The largest holders were Ariel Investments ($221.1M), BlackRock, Inc. ($121.0M) and Disciplined Growth Investors Inc. ($82.9M). 7 famous investors held it, including John W. Rogers Jr. (2.5% of Ariel Investments's portfolio), Ken Fisher (0.0% of Fisher Asset Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Core Laboratories Inc.
- CUSIP
- 21867A105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 18 | $7.2M |
| Exits | 18 | $7.2M |
All 13F filers, Q4 2025 → Q1 2026: 2,574,605 shares bought and 2,327,336 shares sold, net +247,269 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 190 holders
| Ariel Investments | 2.48% | Reduce -3.6% | 13,170,388 | $221.1M |
| BlackRock, Inc. | 0.00% | Add +0.8% | 7,208,503 | $121.0M |
| Disciplined Growth Investors Inc. | 1.70% | Reduce -4.5% | 4,937,115 | $82.9M |
| Earnest Partners LLC | 0.21% | Reduce -5.1% | 3,055,996 | $51.3M |
| State Street Corp. | 0.00% | Add +0.9% | 2,060,537 | $34.6M |
| CWA Asset Management Group, LLC | 1.00% | Add +179.7% | 1,741,001 | $29.2M |
| Vanguard Capital Management LLC | 0.00% | — | 1,619,863 | $27.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +10.0% | 1,352,329 | $22.7M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,254,836 | $21.1M |
| Geode Capital Management, LLC | 0.00% | Add +2.1% | 1,137,958 | $19.1M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Add +5.9% | 1,103,895 | $18.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +0.4% | 848,901 | $14.3M |
| Fisher Asset Management | 0.00% | Reduce -4.9% | 736,747 | $12.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -6.9% | 686,950 | $11.5M |
| Gendell Jeffrey L | 0.15% | No change | 648,460 | $10.9M |
| Northern Trust Corp. | 0.00% | Add +4.0% | 565,286 | $9.5M |
| Van Eck Associates Corp. | 0.01% | Add +34.2% | 472,466 | $7.9M |
| American Century Companies Inc. | 0.00% | Add +21.7% | 447,097 | $7.5M |
| Morgan Stanley | 0.00% | Reduce -7.9% | 446,782 | $7.5M |
| UBS Group AG | 0.00% | Add +4.6% | 431,653 | $7.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 403,084 | $6.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 289,562 | $4.9M |
| Advisors Capital Management, LLC | 0.06% | Add +4.4% | 288,630 | $4.8M |
| MAC Alpha Capital Management, LP | 2.77% | Reduce -9.5% | 283,196 | $4.8M |
| Principal Financial Group Inc. | 0.00% | Reduce -7.4% | 271,821 | $4.6M |
| Invesco Ltd. | 0.00% | Add +13.6% | 232,001 | $3.9M |
| Bank of America Corp. | 0.00% | Add +59.6% | 224,618 | $3.8M |
| Envestnet Asset Management Inc. | 0.00% | Add +30.1% | 223,876 | $3.8M |
| Wells Fargo & Company | 0.00% | Reduce -13.0% | 190,316 | $3.2M |
| Hotchkis & Wiley Capital Management LLC | 0.01% | Reduce -67.3% | 180,135 | $3.0M |
| Royce & Associates LP | 0.03% | Reduce -13.3% | 179,251 | $3.0M |
| Public Sector Pension Investment Board | 0.01% | Add +3.4% | 166,588 | $2.8M |
| Citadel Advisors | 0.00% | Add +319.1% | 154,800 | $2.6M |
| Nuveen, LLC | 0.00% | Reduce -2.2% | 150,123 | $2.5M |
| Heartland Advisors Inc. | 0.13% | New | 150,000 | $2.5M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -4.6% | 148,337 | $2.5M |
| Rhumbline Advisers | 0.00% | Add +3.1% | 139,134 | $2.3M |
| Legal & General Group Plc | 0.00% | Reduce -7.5% | 119,178 | $2.0M |
| D. E. Shaw & Co. | 0.00% | Reduce -29.5% | 118,426 | $2.0M |
| Marshall Wace, LLP | 0.00% | New | 117,744 | $2.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -34.9% | 100,538 | $1.7M |
| Rice Hall James & Associates, LLC | 0.09% | Reduce -0.2% | 99,096 | $1.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1.8% | 96,902 | $1.6M |
| Jump Financial, LLC | 0.03% | New | 96,200 | $1.6M |
| Swiss National Bank | 0.00% | No change | 92,500 | $1.6M |
| Tidal Investments LLC | 0.00% | Add +1.2% | 71,201 | $1.2M |
| Quantinno Capital Management LP | 0.00% | Add +0.5% | 68,395 | $1.1M |
| BWM Planning, LLC | 0.29% | No change | 65,036 | $1.1M |
| Creative Planning | 0.00% | Add +0.1% | 62,471 | $1.0M |
| Moors & Cabot, Inc. | 0.04% | Reduce -1.7% | 60,802 | $1.0M |
| Raiffeisen Bank International AG | 0.01% | No change | 60,000 | $1.0M |
| T. Rowe Price Associates Inc. | 0.00% | Add +16.8% | 57,142 | $960K |
| Panagora Asset Management Inc. | 0.00% | Add +383.6% | 54,962 | $923K |
| AQR Capital Management | 0.00% | Add +4.2% | 51,925 | $872K |
| Renaissance Technologies | 0.00% | Reduce -72.4% | 50,603 | $850K |
| Prudential Financial Inc. | 0.00% | Add +10.1% | 48,563 | $815K |
| Oppenheimer Asset Management Inc. | 0.01% | Add +14.2% | 48,525 | $815K |
| Pacific Ridge Capital Partners, LLC | 0.16% | Add +0.0% | 44,431 | $746K |
| California State Teachers Retirement System | 0.00% | Reduce -0.8% | 42,973 | $722K |
| Deutsche Bank AG | 0.00% | Add +4.7% | 40,615 | $682K |
| Old West Investment Management, LLC | 0.07% | Add +6.0% | 40,525 | $680K |
| Campbell & CO Investment Adviser LLC | 0.04% | Add +97.2% | 40,374 | $678K |
| Alliancebernstein L.P. | 0.00% | No change | 41,130 | $659K |
| Lido Advisors, LLC | 0.00% | Reduce -7.8% | 37,846 | $635K |
| Captrust Financial Advisors | 0.00% | Add +15.7% | 36,753 | $617K |
| Susquehanna International Group, LLP | 0.00% | Add +56.3% | 32,350 | $543K |
| CoreCommodity Management, LLC | 0.10% | Reduce -10.3% | 31,972 | $537K |
| Amundi | 0.00% | Add +63.0% | 31,857 | $535K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.9% | 31,167 | $523K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 29,541 | $496K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 28,771 | $483K |
| Citigroup Inc. | 0.00% | Add +173.7% | 27,905 | $469K |
| Illinois Municipal Retirement Fund | 0.01% | Add +12.9% | 25,642 | $431K |
| MetLife Investment Management, LLC | 0.00% | Reduce -1.4% | 24,895 | $418K |
| Kornitzer Capital Management Inc. | 0.01% | Reduce -8.2% | 24,775 | $416K |
| Millennium Management | 0.00% | Add +65.2% | 23,802 | $400K |
| JPMorgan Chase & Co. | 0.00% | Add +0.0% | 23,192 | $389K |
| State of Alaska, Department of Revenue | 0.00% | Reduce -2.2% | 22,985 | $385K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +38.9% | 22,401 | $376K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +1.2% | 22,049 | $370K |
| Los Angeles Capital Management LLC | 0.00% | Add +116.0% | 22,001 | $369K |
| Louisiana State Employees Retirement System | 0.01% | Reduce -3.3% | 20,600 | $346K |
| Janus Henderson Group PLC | 0.00% | No change | 19,854 | $334K |
| Vanguard Global Advisers, LLC | 0.00% | — | 19,660 | $330K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | No change | 19,604 | $329K |
| Arkadios Wealth Advisors | 0.01% | Reduce -10.8% | 18,476 | $310K |
| Sei Investments Co. | 0.00% | Reduce -25.6% | 16,843 | $283K |
| Terril Brothers, Inc. | 0.08% | Reduce -12.5% | 16,600 | $279K |
| Argos Wealth Advisors, LLC | 0.08% | No change | 16,119 | $271K |
| Abacus Wealth Partners, LLC | 0.02% | Add +1.3% | 14,695 | $247K |
| Isthmus Partners, LLC | 0.03% | Add +16.2% | 14,509 | $244K |
| Connable Office Inc. | 0.02% | Reduce -9.5% | 14,266 | $240K |
| Intech Investment Management LLC | 0.00% | Reduce -33.0% | 14,130 | $237K |
| New York State Common Retirement Fund | 0.00% | No change | 13,896 | $233K |
| Corient Private Wealth LP | 0.00% | Add +0.7% | 13,734 | $231K |
| Amalgamated Bank | 0.00% | Reduce -2.0% | 13,420 | $225K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 13,390 | $225K |
| Farther Finance Advisors, LLC | 0.00% | Add +40.3% | 13,955 | $225K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -9.3% | 12,819 | $215K |
| Arizona State Retirement System | 0.00% | Reduce -1.4% | 12,775 | $214K |
"% of holder's portfolio" is CLB's weight in each manager's 13F, not the share of Core Laboratories Inc. the manager owns.