Core Laboratories Inc.: which funds bought and sold
Institutions that bought and sold Core Laboratories shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 84 institutions that filed 13F reports for both quarters added to or opened positions in Core Laboratories, and 100 cut or closed them. Together they added a net 2.2M shares, +4.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 721K shares (−2.9%); index fund managers were net buyers of 320K shares (+2.1%). 28 opened a new position and 31 sold out entirely.
Bought, Q2 2026 84 institutions, 28 of them new holders Sold, Q2 2026 100 institutions, 31 of them sold out
Net change, all compared +2.2M shares (+4.3%)
Net change, active managers −721K shares (−2.9%), 10 bought, 17 sold
Buyers versus sellers
84 bought 28 100 sold
Active managers and hedge funds 10 bought · 17 sold · −721K
Index fund managers 7 bought · 3 sold · +320K
Other institutions 67 bought · 80 sold · +2.6M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Schroder Investment Management Group Active manager | +1.5M New position | 1.5M | $16.9M |
| Heartland Advisors Inc | +908K +605.5% | 1.1M | $12.3M |
| Ariel Investments, LLC Active manager | +905K +6.9% | 14.1M | $164M |
| Evergreen Capital Management LLC | +670K New position | 670K | $7.8M |
| Gendell Jeffrey L | +443K +68.2% | 1.1M | $12.7M |
| Blackrock, Inc. Index funds | +252K +3.5% | 7.5M | $86.9M |
| Citadel Advisors LLC Hedge fund | +217K +140.1% | 372K | $4.3M |
| Morgan Stanley | +209K +46.9% | 656K | $7.6M |
| Dimensional Fund Advisors LP | +196K +14.5% | 1.5M | $18M |
| Archon Capital Management LLC | +179K New position | 179K | $2.1M |
| D. E. Shaw & Co., Inc. Hedge fund | +130K +109.5% | 248K | $2.9M |
| State Street Corp Index funds | +116K +5.6% | 2.2M | $25.4M |
| Xtx Topco Ltd | +85K New position | 85K | $994,106 |
| Geode Capital Management, LLC Index funds | +56K +4.9% | 1.2M | $13.9M |
| Hotchkis & Wiley Capital Management LLC Active manager | +55K +30.5% | 235K | $2.7M |
| Squarepoint Ops LLC Hedge fund | +48K New position | 48K | $555,041 |
| Raymond James Financial Inc | +47K New position | 47K | $544,940 |
| Citigroup Inc | +46K +163.3% | 73K | $856,089 |
| Russell Investments Group, Ltd. | +45K +30.5% | 194K | $2.3M |
| Northern Trust Corp Index funds | +43K +7.6% | 608K | $7.1M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Schroder Investment Management Group Active manager | +1.5M New position | 1.5M | $16.9M |
| Ariel Investments, LLC Active manager | +905K +6.9% | 14.1M | $164M |
| Citadel Advisors LLC Hedge fund | +217K +140.1% | 372K | $4.3M |
| D. E. Shaw & Co., Inc. Hedge fund | +130K +109.5% | 248K | $2.9M |
| Hotchkis & Wiley Capital Management LLC Active manager | +55K +30.5% | 235K | $2.7M |
| Squarepoint Ops LLC Hedge fund | +48K New position | 48K | $555,041 |
| Price T Rowe Associates Inc Active manager | +27K +47.3% | 84K | $981,000 |
| Walleye Capital LLC Hedge fund | +21K New position | 21K | $241,004 |
| AQR Capital Management LLC Hedge fund | +13K +24.8% | 65K | $755,026 |
| Alliancebernstein L.P. Active manager | +700 +1.7% | 42K | $702,326 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Disciplined Growth Investors Inc Active manager | −1.9M −38.4% | 3.0M | $35.4M |
| T. Rowe Price Investment Management, Inc. Active manager | −619K −56.1% | 485K | $5.7M |
| American Century Companies Inc Active manager | −352K −78.8% | 95K | $1.1M |
| Fisher Asset Management, LLC Active manager | −289K −39.2% | 448K | $5.2M |
| Royce & Associates LP Active manager | −179K Sold out | 0 | — |
| Bank Of America Corp | −137K −61.1% | 87K | $1M |
| Charles Schwab Investment Management Inc Index funds | −122K −17.7% | 565K | $6.6M |
| Marshall Wace, LLP Hedge fund | −118K Sold out | 0 | — |
| Earnest Partners LLC Active manager | −115K −3.8% | 2.9M | $34.3M |
| Goldman Sachs Group Inc | −97K −11.5% | 752K | $8.8M |
| Van Eck Associates Corp | −79K −16.7% | 394K | $4.6M |
| Advisors Capital Management, LLC | −51K −17.8% | 237K | $2.8M |
| Campbell & Co Investment Adviser LLC | −40K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −36K −71.3% | 15K | $168,925 |
| Corecommodity Management, LLC | −32K Sold out | 0 | — |
| Wells Fargo & Company | −32K −16.8% | 158K | $1.8M |
| Invesco Ltd. | −30K −12.9% | 202K | $2.4M |
| Connor, Clark & Lunn Investment Management Ltd. | −30K Sold out | 0 | — |
| Vanguard Capital Management LLC Index funds | −29K −1.8% | 1.6M | $18.5M |
| Illinois Municipal Retirement Fund | −26K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Disciplined Growth Investors Inc Active manager | −1.9M −38.4% | 3.0M | $35.4M |
| T. Rowe Price Investment Management, Inc. Active manager | −619K −56.1% | 485K | $5.7M |
| American Century Companies Inc Active manager | −352K −78.8% | 95K | $1.1M |
| Fisher Asset Management, LLC Active manager | −289K −39.2% | 448K | $5.2M |
| Royce & Associates LP Active manager | −179K Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −118K Sold out | 0 | — |
| Earnest Partners LLC Active manager | −115K −3.8% | 2.9M | $34.3M |
| Renaissance Technologies LLC Hedge fund | −36K −71.3% | 15K | $168,925 |
| Millennium Management LLC Hedge fund | −24K Sold out | 0 | — |
| Los Angeles Capital Management LLC Active manager | −22K −98.7% | 291 | $3,390 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Schroder Investment Management GroupActive manager | 1.5M | $16.9M |
| Evergreen Capital Management LLC | 670K | $7.8M |
| Archon Capital Management LLC | 179K | $2.1M |
| Xtx Topco Ltd | 85K | $994,106 |
| Squarepoint Ops LLCHedge fund | 48K | $555,041 |
| Raymond James Financial Inc | 47K | $544,940 |
| Tejara Capital Ltd | 31K | $362,280 |
| Inceptionr LLC | 25K | $292,415 |
| Stifel Financial Corp | 25K | $292,327 |
| HSBC Holdings PLC | 26K | $288,151 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Royce & Associates LPActive manager | 179K | $3M |
| Marshall Wace, LLPHedge fund | 118K | $2M |
| Campbell & Co Investment Adviser LLC | 40K | $677,879 |
| Corecommodity Management, LLC | 32K | $536,810 |
| Connor, Clark & Lunn Investment Management Ltd. | 30K | $495,993 |
| Illinois Municipal Retirement Fund | 26K | $430,529 |
| Millennium Management LLCHedge fund | 24K | $399,636 |
| Argos Wealth Advisors, LLC | 16K | $270,638 |
| Abacus Wealth Partners, LLC | 15K | $246,735 |
| Profund Advisors LLC | 13K | $213,199 |
Who holds the shares
- Institutions reporting
- 184
- Ten largest holders
- 71.0% of 13F-reported shares
- Index fund managers
- 29.0% of 13F-reported shares
- Active managers and hedge funds
- 45.2% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 10 | 17 | 3 | 7 | −721K | −2.9% |
| Index fund managers | 7 | 3 | 0 | 0 | +320K | +2.1% |
| Other institutions | 67 | 80 | 25 | 24 | +2.6M | +23.4% |