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Core Laboratories (NYSE: CLB) CAO exercises 440 shares, disposes 198 for obligations

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Core Laboratories CAO & Treasurer Teo Sow Hang exercised 440 Restricted Shares into Common Stock on August 1, 2026, and disposed of 198 Common shares at $10.64 per share to pay the exercise price or tax liability. The Restricted Shares vest annually over six years and reflect multiple grants.

Positive

  • None.

Negative

  • None.
Insider Teo Sow Hang
Role CAO & Treasurer
Type Security Shares Price Value
Exercise Restricted Shares F1, F2 240 $0.00 $0.00
Exercise Restricted Shares F1, F2 200 $0.00 $0.00
Exercise Price or Tax Liability Common Stock 108 $10.64 $1K
Exercise Common Stock 240 $0.00 $0.00
Exercise Price or Tax Liability Common Stock 90 $10.64 $957.60
Exercise Common Stock 200 $0.00 $0.00
Holdings After Transaction: Restricted Shares — 12,740 shares (Direct); Common Stock — 8,625.334 shares (Direct)
Footnotes (2)
  1. F1. The Restricted Shares vest annually over six years on the anniversary of the grant date in the amount specified in the award agreement, provided the reporting person remains in continuous service on each such vesting date.
  2. F2. Multiple restricted share grants are included in this total.
Restricted shares exercised 440 shares Total underlying shares from derivative exercises on 2026-08-01
Shares disposed for exercise price or tax liability 198 shares Total Common Stock in code F dispositions on 2026-08-01
Disposition price $10.64 per share Per-share price for Common Stock transactions coded F
Derivative exercise transactions 2 Number of Restricted Share exercises reported with code M
Exercise price or tax liability transactions 2 Number of Common Stock dispositions reported with code F
Restricted Shares financial
"The Restricted Shares vest annually over six years on the anniversary"
Restricted shares are company stock that cannot be sold or transferred immediately because they are subject to legal or contractual limits, such as a required holding period or performance conditions. They matter to investors because these locked-up shares can affect a company’s available stock for trading, future dilution, and insider incentives—imagine a gift that can’t be cashed until certain conditions are met, which changes when and how much supply can suddenly enter the market.
vest annually financial
"The Restricted Shares vest annually over six years on the anniversary"
derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
tax liability financial
"Payment of exercise price or tax liability by delivering or withholding securities"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transactions did CLB executive Teo Sow Hang report for August 1, 2026?

Teo Sow Hang reported exercising 440 Restricted Shares into Common Stock and disposing of 198 Common shares at $10.64 per share to pay the exercise price or tax liability. All transactions occurred on August 1, 2026, and relate to prior restricted share awards.

How many restricted shares did CLB insider Teo Sow Hang exercise?

The reporting person exercised Restricted Shares convertible into 440 shares of Common Stock on August 1, 2026. These came from multiple restricted share grants that vest annually over six years, provided continuous service requirements in the award agreements continue to be met.

At what price were Core Laboratories (CLB) shares disposed for obligations?

Common Stock was disposed at $10.64 per share in transactions coded “F.” The code indicates payment of the exercise price or tax liability by delivering or withholding securities, covering 108 shares in one transaction and 90 shares in another, totaling 198 shares.

Were Teo Sow Hang’s CLB transactions made under a Rule 10b5-1 trading plan?

The filing indicates the transactions were not made under a Rule 10b5-1 trading plan, as the related checkbox is not affirmed. No footnote states that a pre-arranged trading arrangement applied to these August 1, 2026 equity transactions.

What was the net buy or sell effect of the August 1, 2026 CLB insider trades?

The transaction summary reports net buy/sell shares of 0, indicating no net common share purchase or sale. Activity combined 440 shares acquired through exercises with 198 shares disposed for exercise price or tax liability, yielding a neutral buy/sell outcome overall.

How do CLB restricted share awards for Teo Sow Hang vest over time?

The Restricted Shares vest annually over six years on each grant date anniversary, in amounts defined in the award agreements. Vesting occurs only if the reporting person remains in continuous service through each vesting date, and multiple grants are aggregated in the reported totals.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Teo Sow Hang

(Last)(First)(Middle)
6316 WINDFERN ROAD

(Street)
HOUSTON TEXAS 77040

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Core Laboratories Inc. /DE/ [ CLB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
CAO & Treasurer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/01/2026F108D$10.648,667.334D
Common Stock08/01/2026M240A$08,775.334D
Common Stock08/01/2026F90D$10.648,535.334D
Common Stock08/01/2026M200A$08,625.334D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Shares$008/01/2026M240 (1) (1)Common Stock240$06,250(2)D
Restricted Shares$008/01/2026M200 (1) (1)Common Stock200$06,490(2)D
Explanation of Responses:
1. The Restricted Shares vest annually over six years on the anniversary of the grant date in the amount specified in the award agreement, provided the reporting person remains in continuous service on each such vesting date.
2. Multiple restricted share grants are included in this total.
/s/ Mark D. Tattoli, Attorney-in-Fact08/04/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)