$CLB

$10.33 +$0.11 (1.08%) Close

$CLB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 45.9M shares outstanding

Who owns CLB?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 81.5%

Ariel Investments, LLC 30.7% · BlackRock, Inc. 16.3%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

185

-5 vs last qtr

Net shares bought

+2.1M

by institutions in Q2 2026

New / sold out

31 / 36

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Schroder Investment Management Group NEW +1.5M
Heartland Advisors Inc +908.3K

Biggest sellers in Q2 2026

Disciplined Growth Investors Inc /MN −1.9M
T. Rowe Price Investment Management, Inc. −618.9K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Core Laboratories Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+0.7%

+0.18% a year

Each share's claim on the business

−0.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$32.1M vs $51.7M

over 5 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years85% 1–3 years3% Under 1 year12%

Quarterly turnover

11.3%

of institutional shares changed hands

Top 10 managers, median time held

3 years

Super Investors

Investment managers reporting CLB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AI Ariel Investments, LLC	14.1M	30.67%	+904.6K (+6.9%)	2023	1.6%
Shares held by quarter Peak holding14.1M (Q2'26) Change over 8 quarters+4.0M Share of the company30.670% Ariel Investments, LLC's full portfolio →
B BlackRock, Inc.	7.5M	16.26%	+251.6K (+3.5%)	2023	0.0%
Shares held by quarter Peak holding7.9M (Q4'24) Change over 8 quarters−322.7K Share of the company16.260% BlackRock, Inc.'s full portfolio →

Ariel Investments, LLC

14.1M

% of company

30.67%

Change vs last qtr

+904.6K (+6.9%)

Held since

2023

BlackRock, Inc.

7.5M

% of company

16.26%

Change vs last qtr

+251.6K (+3.5%)

Held since

2023

28 more super investors behind a free account

See every manager holding Core Laboratories Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting CLB on Form N-PORT; together they hold 57.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
AF Ariel Fund Ariel Investment Trust	$75.4M	6.5M	14.11%	2.60%	June 30, 2026
IC iShares Core S&P Small-Cap ETF iShares Trust	$32.3M	2.8M	6.05%	0.03%	June 30, 2026

Ariel Fund

Ariel Investment Trust

Position value

$75.4M

% of company

14.11%

% of the fund

2.60%

As of

June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$32.3M

% of company

6.05%

% of the fund

0.03%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Core Laboratories Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BL Bruno Lawrence Insider	262.4K	0.57%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.570% Bruno Lawrence's insider activity →
HC Hill Christopher Scott Insider	142.4K	0.31%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.310% Hill Christopher Scott's insider activity →

Bruno Lawrence

Insider

262.4K

% of company

0.57%

Change vs last qtr

—

Held since

—

Hill Christopher Scott

Insider

142.4K

% of company

0.31%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of Core Laboratories Inc..

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