Core Laboratories
CLB
186 hedge funds and large institutions have $613M invested in Core Laboratories in 2026 Q2 according to their latest regulatory filings, with 32 funds opening new positions, 57 increasing their positions, 69 reducing their positions, and 31 closing their positions.
12,533% more call options, than puts
Call options by funds: $379K | Put options by funds: $3K
4.57% more ownership
Funds ownership: 109.73% → 114.3% (+4.6%)
3% more first-time investments, than exits
New positions opened: 32 | Existing positions closed: 31
2% less funds holding
Funds holding: 190 → 186 (-4)
17% less repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 69
28% less capital invested
Capital invested by funds: $848M → $613M (-$236M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Schroder Investment Management Group
London,
United Kingdom
|
+$22M |
| 2 |
HA
Heartland Advisors
Milwaukee,
Wisconsin
|
+$13M |
| 3 |
AI
Ariel Investments
Chicago,
Illinois
|
+$12.9M |
| 4 |
ECM
Evergreen Capital Management
Bellevue,
Washington
|
+$9.56M |
| 5 |
GJL
Gendell Jeffrey L
|
+$6.32M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DGI
Disciplined Growth Investors
Minneapolis,
Minnesota
|
-$27M |
| 2 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$8.83M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
-$5.03M |
| 4 |
Fisher Asset Management
Camas,
Washington
|
-$4.12M |
| 5 |
RA
Royce & Associates
New York
|
-$3.01M |
CLB Hedge Fund Activity: Q2 2026 in Review
186 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Core Laboratories (CLB) for Q2 2026, worth a combined $613M — down 28% from $848M a quarter earlier.
Buyers outnumbered sellers: 32 funds opened new CLB positions and 31 closed out — a net gain of 1 holder — while 57 added to existing stakes and 69 trimmed.
The largest buyer was Schroder Investment Management Group, opening a new position worth an estimated $22M. The largest seller was Disciplined Growth Investors, cutting an estimated $27M.
- 186 institutional investors held Core Laboratories (CLB) as of Q2 2026, down from 190 in Q1 2026.
- Funds reported $613M of Core Laboratories stock for Q2 2026, down 28% quarter-over-quarter.
- 32 funds opened new Core Laboratories positions in Q2 2026 and 31 closed out, a net change of +1 holder.
- The largest Core Laboratories buyer in Q2 2026 was Schroder Investment Management Group, an estimated $22M added.
- The largest Core Laboratories seller in Q2 2026 was Disciplined Growth Investors, an estimated $27M sold.
Based on aggregated 13F filings for Q2 2026.