CORE LABORATORIES INC (CLB) Institutional Ownership Changes & 13F Activity
CORE LABORATORIES INC (CLB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Hotchkis & Wiley Capital Management Llc, Disciplined Growth Investors, Earnest Partners Llc, T. Rowe Price Investment Management, Inc., and Van Eck Associates Corp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Wells Fargo & Company/Mn | Sell | -28,457 | -13.0% | 190,316 | $3.20M | Q1 2026 | Jul 08, 2026 |
| Bank Of America Corp | Buy | +83,918 | +59.6% | 224,618 | $3.77M | Q1 2026 | May 18, 2026 |
| Amundi | Buy | +12,312 | +63.0% | 31,857 | $534.88K | Q1 2026 | May 18, 2026 |
| Arkadios Wealth Advisors | Sell | -2,242 | -10.8% | 18,476 | $310.21K | Q1 2026 | May 18, 2026 |
| California State Teachers Retirement System | Sell | -350 | -0.8% | 42,973 | $721.52K | Q1 2026 | May 18, 2026 |
| Hotchkis & Wiley Capital Management Llc | Sell | -370,980 | -67.3% | 180,135 | $3.02M | Q1 2026 | May 15, 2026 |
| Disciplined Growth Investors | Sell | -229,799 | -4.4% | 4,937,115 | $82.89M | Q1 2026 | May 15, 2026 |
| Earnest Partners Llc | Sell | -165,047 | -5.1% | 3,055,996 | $51.31M | Q1 2026 | May 15, 2026 |
| T. Rowe Price Investment Management, Inc. | Buy | +164,991 | +17.6% | 1,103,895 | $18.54M | Q1 2026 | May 15, 2026 |
| Van Eck Associates Corp | Buy | +120,443 | +34.2% | 472,466 | $7.93M | Q1 2026 | May 15, 2026 |
| Citadel Advisors Llc | Buy | +117,867 | +319.1% | 154,800 | $2.60M | Q1 2026 | May 15, 2026 |
| Marshall Wace, Llp | Buy | +117,744 | — | 117,744 | $1.98M | Q1 2026 | May 15, 2026 |
| American Century Companies Inc | Buy | +79,732 | +21.7% | 447,097 | $7.51M | Q1 2026 | May 15, 2026 |
| Barclays Plc | Sell | -64,291 | -87.8% | 8,955 | $150.35K | Q1 2026 | May 15, 2026 |
| Charles Schwab Investment Management Inc | Sell | -50,600 | -6.9% | 686,950 | $11.53M | Q1 2026 | May 15, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -49,458 | -29.5% | 118,426 | $1.99M | Q1 2026 | May 15, 2026 |
| Morgan Stanley | Sell | -38,256 | -7.9% | 446,782 | $7.50M | Q1 2026 | May 15, 2026 |
| Mac Alpha Capital Management, Lp | Sell | -29,732 | -9.5% | 283,196 | $4.75M | Q1 2026 | May 15, 2026 |
| Geode Capital Management, Llc | Buy | +23,023 | +2.1% | 1,137,958 | $19.11M | Q1 2026 | May 15, 2026 |
| Campbell & Co Investment Adviser Llc | Buy | +19,895 | +97.1% | 40,374 | $677.88K | Q1 2026 | May 15, 2026 |
| State Street Corp | Buy | +18,797 | +0.9% | 2,060,537 | $34.60M | Q1 2026 | May 15, 2026 |
| Susquehanna International Group, Llp | Buy | +11,657 | +56.3% | 32,350 | $543.16K | Q1 2026 | May 15, 2026 |
| Vident Advisory, Llc | Buy | +10,019 | — | 10,019 | $168.22K | Q1 2026 | May 15, 2026 |
| Millennium Management Llc | Buy | +9,397 | +65.2% | 23,802 | $399.64K | Q1 2026 | May 15, 2026 |
| Price T Rowe Associates Inc | Buy | +8,222 | +16.8% | 57,142 | $960.00K | Q1 2026 | May 15, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | Buy | +6,269 | +38.9% | 22,401 | $376.11K | Q1 2026 | May 15, 2026 |
| Captrust Financial Advisors | Buy | +4,986 | +15.7% | 36,753 | $617.08K | Q1 2026 | May 15, 2026 |
| Corecommodity Management, Llc | Sell | -3,654 | -10.3% | 31,972 | $536.81K | Q1 2026 | May 15, 2026 |
| Goldman Sachs Group Inc | Buy | +3,650 | +0.4% | 848,901 | $14.25M | Q1 2026 | May 15, 2026 |
| Royal Bank Of Canada | Sell | -3,079 | -79.6% | 788 | $13.00K | Q1 2026 | May 15, 2026 |
Frequently asked questions about CLB activity
Which institutional owners are buying CLB?
Institutional owners buying CLB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CLB activity?
"Buy" means an investor increased their reported position in CLB compared to the prior reporting period. This reflects growing exposure to CORE LABORATORIES INC (CLB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CLB increasing?
Institutional interest in CLB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CLB Institutional Insights
- CLB Overview
- CLB 13F Institutional Holders
- CLB Superinvestors
- Energy Sector Institutional Ownership
- Energy Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Energy Stocks By Institutional Investors
- Most Sold Energy Stocks By Institutional Investors
- CLB Insider Trading & SEC Form 4 Activity
- CLB Articles
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