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 (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Disciplined Growth Investors, Ariel Appreciation Fund, T. Rowe Price Investment Management, Inc., Gendell Jeffrey L, and Citadel Advisors Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +542 | +4.2% | 13,361 | $155.66K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Buy | +216,815 | +140.1% | 371,615 | $4.33M | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Sell | -1,647 | -12.0% | 12,087 | $140.81K | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Buy | +9,554 | +22.2% | 52,527 | $611.94K | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +10,672 | — | 10,672 | $124.33K | Q2 2026 | Aug 19, 2026 |
| Disciplined Growth Investors | Sell | -1,894,938 | -38.4% | 3,042,177 | $35.44M | Q2 2026 | Aug 14, 2026 |
| Ariel Appreciation Fund | Buy | +904,557 | +6.9% | 14,074,945 | $163.97M | Q2 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Sell | -618,863 | -56.1% | 485,032 | $5.65M | Q2 2026 | Aug 14, 2026 |
| Gendell Jeffrey L | Buy | +442,513 | +68.2% | 1,090,973 | $12.71M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +202,140 | — | 202,140 | $2.35M | Q2 2026 | Aug 14, 2026 |
| Archon Capital Management Llc | Buy | +178,700 | — | 178,700 | $2.08M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -137,333 | -61.1% | 87,285 | $1.02M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +129,644 | +109.5% | 248,070 | $2.89M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Sell | -121,885 | -17.7% | 565,065 | $6.58M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +98,959 | — | 98,959 | $1.15M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -97,258 | -11.5% | 751,643 | $8.76M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +85,331 | — | 85,331 | $994.11K | Q2 2026 | Aug 14, 2026 |
| Van Eck Associates Corp | Sell | -78,784 | -16.7% | 393,682 | $4.59M | Q2 2026 | Aug 14, 2026 |
| Hotchkis & Wiley Capital Management Llc | Buy | +54,880 | +30.5% | 235,015 | $2.74M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +47,643 | — | 47,643 | $555.04K | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Buy | +46,776 | — | 46,776 | $544.94K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Sell | -31,925 | -16.8% | 158,391 | $1.85M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +27,052 | +47.3% | 84,194 | $981.00K | Q2 2026 | Aug 14, 2026 |
| Hsbc Holdings Plc | Buy | +26,077 | — | 26,077 | $288.15K | Q2 2026 | Aug 14, 2026 |
| Mac Alpha Capital Management, Lp | Sell | -20,302 | -7.2% | 262,894 | $3.06M | Q2 2026 | Aug 14, 2026 |
| Aquatic Capital Management Llc | Buy | +18,801 | — | 18,801 | $219.03K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +14,185 | +158.4% | 23,140 | $269.58K | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +12,884 | +24.8% | 64,809 | $755.03K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -11,648 | -36.0% | 20,702 | $241.18K | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -6,273 | -37.2% | 10,570 | $123.15K | Q2 2026 | Aug 14, 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 Top Institutional Shareholders
- 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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