Security key
21867A105
Core Laboratories Inc. /DE/ - Common Shares (CLB)
CUSIP: 21867A105
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Shares
- Total 13F shares
- 50,532,783
- Total 13F value
- $848,406,972
- Share change
- +207,714
- Put/Call ratio
- 15%
- SEC-reported price per share
- $16.79
- Number of holders
- 188
- Value change
- +$3,974,149
- Number of buys
- 80
- Number of sells
- 74
- Shares outstanding
- 46,141,262
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q1 2026
Institutions
188
Top holders
10
CLB full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
Core Laboratories Inc. /DE/ SEC filings
Core Laboratories Inc. /DE/ company facts
Broader feeds
Reporting periods
Holder history for CUSIP 21867A105
Recent filing periods:
Ownership snapshot
Top reported holders of CLB - Core Laboratories Inc. /DE/ - Common Shares (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ARIEL INVESTMENTS, LLC
Disclosed value leader
ARIEL INVESTMENTS, LLC
Comparable rows
15/15
Latest evidence
31 Dec 2025
13F
13D/G
Lead comparable stake: 29%
13D/G row: ARIEL INVESTMENTS, LLC
Showing 1-6 of 15 holder rows.
Quick read
ARIEL INVESTMENTS, LLC leads the comparable SEC ownership view at 29%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
ARIEL INVESTMENTS, LLC
29%
BlackRock, Inc.
16%
DISCIPLINED GROWTH INVESTORS INC /MN
11%
EARNEST PARTNERS LLC
6.9%
VANGUARD GROUP INC
6.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ARIEL INVESTMENTS, LLC |
13F
13D/G
Company
|
29%
from 13D/G
|
$218,985,830
13,661,000 shares
|
— | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
16%
from 13D/G
|
$114,671,291
7,153,543 shares
|
— | 31 Dec 2025 |
| DISCIPLINED GROWTH INVESTORS INC /MN |
13F
13D/G
Company
|
11%
from 13D/G
|
$82,825,631
5,166,914 shares
|
— | 31 Dec 2025 |
| EARNEST PARTNERS LLC |
13D/G
13F
Company
|
6.9%
|
$60,813,292
3,221,043 shares
|
$0 | 31 Dec 2025 |
| VANGUARD GROUP INC |
13F
Company
|
6.7%
|
$49,370,508
3,079,882 shares
|
— | 31 Dec 2025 |
| STATE STREET CORP |
13F
Company
|
4.4%
|
$32,729,092
2,041,740 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
188
Shares
50,532,783
Rows available
188
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
186
Q1 2026 holders
188
Holder diff
2
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend