Latest Period
Q1 2026
Security Snapshot
Core Laboratories Inc. /DE/ - Common Shares (CLB) Institutional Ownership
CUSIP: 21867A105
13F Institutional Holders and Ownership History from Q2 2020 to Q1 2026
Institutions Reporting
188
Shares (Excl. Options)
50,532,783
Price
$16.79
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- Security type / class
- Equity / Common Shares
- Symbol
- CLB on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 50,532,783
- Total 13F value
- $848,406,972
- Portfolio coverage rank
- 0%
- Share change
- +207,714
- Value change
- +$3,974,149
- Number of holders
- 188
- Shares outstanding
- 46,141,262
- SEC-reported price per share
- $13.13
- Insider filing price
- $13.13
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- CLB - Core Laboratories Inc. /DE/ - Common Shares is tracked under CUSIP 21867A105.
- 188 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 186 to 188 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $804,177,314 to $848,406,972.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 188 institutions filings for Q1 2026.
Security key
21867A105
Latest holder period
Q1 2026
13F holders
188
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
CLB full holder history
Core Laboratories Inc. /DE/ SEC filings
Core Laboratories Inc. /DE/ company facts
Core Laboratories Inc. /DE/ insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 21867A105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
CLB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| ARIEL INVESTMENTS, LLC | 29% | +9.3% | $170,241,300 | +$14,539,859 | 13,773,568 | +9.3% | Ariel Investments, LLC | 30 Sep 2025 |
| BlackRock, Inc. | 16% | $85,107,722 | 7,261,751 | BlackRock, Inc. | 31 Mar 2025 | |||
| DISCIPLINED GROWTH INVESTORS INC /MN | 11% | -3.6% | $81,511,769 | -$3,793,981 | 4,937,115 | -4.4% | DISCIPLINED GROWTH INVESTORS INC /MN | 31 Mar 2026 |
| EARNEST PARTNERS LLC | 6.9% | $60,813,292 | 3,221,043 | EARNEST PARTNERS LLC | 31 Dec 2025 |
As of 31 Mar 2026, 188 institutional investors reported holding 50,532,783 shares of Core Laboratories Inc. /DE/ - Common Shares (CLB). This represents 110% of the company’s total 46,141,262 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
99%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ARIEL INVESTMENTS, LLC | 29% | 13,170,388 | -3.6% | 2.5% | $221,130,814 |
| BlackRock, Inc. | 16% | 7,208,503 | +0.77% | 0% | $121,030,761 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 11% | 4,937,115 | -4.4% | 1.7% | $82,894,161 |
| EARNEST PARTNERS LLC | 6.6% | 3,055,996 | -5.1% | 0.21% | $51,310,173 |
| STATE STREET CORP | 4.5% | 2,060,537 | +0.92% | 0% | $34,596,416 |
| CWA Asset Management Group, LLC | 3.8% | 1,741,001 | +180% | 1% | $29,231,415 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.5% | 1,619,863 | 0% | 0% | $27,197,500 |
| DIMENSIONAL FUND ADVISORS LP | 2.9% | 1,352,329 | +10% | 0% | $22,705,471 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.7% | 1,254,836 | 0% | 0% | $21,068,696 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 1,137,958 | +2.1% | 0% | $19,110,685 |
| T. Rowe Price Investment Management, Inc. | 2.4% | 1,103,895 | +5.9% | 0.01% | $18,535,000 |
| GOLDMAN SACHS GROUP INC | 1.8% | 848,901 | +0.43% | 0% | $14,253,047 |
| Fisher Asset Management, LLC | 1.6% | 736,747 | -4.9% | 0% | $12,369,981 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5% | 686,950 | -6.9% | 0% | $11,533,891 |
| GENDELL JEFFREY L | 1.4% | 648,460 | 0% | 0.15% | $10,887,644 |
| NORTHERN TRUST CORP | 1.2% | 565,286 | +4% | 0% | $9,491,151 |
| VAN ECK ASSOCIATES CORP | 1% | 472,466 | +34% | 0.01% | $7,933,000 |
| AMERICAN CENTURY COMPANIES INC | 0.97% | 447,097 | +22% | 0% | $7,506,759 |
| MORGAN STANLEY | 0.97% | 446,782 | -7.9% | 0% | $7,501,480 |
| UBS Group AG | 0.94% | 431,653 | +4.6% | 0% | $7,247,455 |
| Bank of New York Mellon Corp | 0.87% | 403,084 | -2.1% | 0% | $6,767,776 |
| VANGUARD FIDUCIARY TRUST CO | 0.63% | 289,562 | 0% | 0% | $4,861,746 |
| Advisors Capital Management, LLC | 0.63% | 288,630 | +4.4% | 0.06% | $4,846,098 |
| MAC Alpha Capital Management, LP | 0.61% | 283,196 | -9.5% | 2.8% | $4,754,692 |
| PRINCIPAL FINANCIAL GROUP INC | 0.59% | 271,821 | -7.4% | 0% | $4,563,874 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
23
Latest
Q1 2026
Rows shown
1-23 of 23
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 50,532,783 | $848,406,972 | +$3,974,149 | $16.79 | 188 |
| 2025 Q4 | 50,162,241 | $804,177,314 | -$17,753,860 | $16.03 | 186 |
| 2025 Q3 | 51,201,255 | $632,858,492 | -$11,818,549 | $12.36 | 185 |
| 2025 Q2 | 52,229,758 | $601,703,431 | +$12,038,127 | $11.52 | 189 |
| 2025 Q1 | 50,873,441 | $762,455,278 | -$802,871 | $14.99 | 193 |
| 2024 Q4 | 50,808,445 | $879,519,256 | -$6,881,344 | $17.31 | 206 |
| 2024 Q3 | 51,038,534 | $945,722,085 | -$15,766,807 | $18.53 | 188 |
| 2024 Q2 | 51,687,236 | $1,048,489,480 | +$64,905,564 | $20.29 | 188 |
| 2024 Q1 | 48,615,242 | $830,350,000 | +$2,700,490 | $17.08 | 195 |
| 2023 Q4 | 48,448,673 | $855,372,251 | -$8,131,057 | $17.66 | 185 |
| 2023 Q3 | 48,377,118 | $1,161,324,514 | -$7,512,373 | $24.01 | 178 |
| 2023 Q2 | 48,704,673 | $1,132,671,034 | +$1,031,130,097 | $23.25 | 162 |
| 2023 Q1 | 4,365,179 | $96,252,170 | +$96,233,663 | $22.05 | 7 |
| 2022 Q4 | 913 | $18,507 | $20.27 | 1 | |
| 2022 Q3 | 913 | $12,307 | +$12,307 | $13.48 | 1 |
| 2022 Q2 | 0 | $0 | -$9,900 | $23.25 | 0 |
| 2022 Q1 | 313 | $9,900 | +$9,457 | $31.63 | 1 |
| 2021 Q4 | 14 | $312 | -$11,990 | $22.29 | 1 |
| 2021 Q3 | 552 | $15,318 | +$4,745 | $27.75 | 1 |
| 2021 Q2 | 381 | $14,840 | +$14,840 | $38.95 | 1 |
| 2020 Q4 | 0 | $0 | -$4,319 | $13.13 | 0 |
| 2020 Q3 | 283 | $4,319 | +$351 | $15.26 | 1 |
| 2020 Q2 | 260 | $5,283 | +$5,283 | $20.32 | 1 |