Gwendolyn Gresham

CIK: 0001842114

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)2 (33.3%)

Derivative conversions

Awards (A)2 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)2 (33.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CLB

Core Laboratories Inc. /DE/

Officer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

CLB
Core Laboratories Inc. /DE/
Feb 12, 2026
Award(A)
Performance Shares
Direct
33.5K shares-
CLB
Core Laboratories Inc. /DE/
Dec 31, 2025
Tax Payment(F)
Direct
19.3K shares at avg. $16.03$309K
CLB
Core Laboratories Inc. /DE/
Dec 31, 2025
Exercise(M)
Direct
25K shares-
CLB
Core Laboratories Inc. /DE/
Feb 13, 2025
Award(A)
Performance Shares
Direct
32.9K shares-
CLB
Core Laboratories Inc. /DE/
Dec 31, 2024
Tax Payment(F)
Direct
6K shares at avg. $17.31$104K
CLB
Core Laboratories Inc. /DE/
Dec 31, 2024
Exercise(M)
Direct
9.6K shares-

		Type	Shares	Price		Ownership
Feb 12, 2026	CLB Core Laboratories Inc. /DE/	Award(A) Performance Shares	33,490	-	-	Direct
Dec 31, 2025	CLB Core Laboratories Inc. /DE/	Tax Payment(F)	19,301	$16.03	$309,395	Direct
Dec 31, 2025	CLB Core Laboratories Inc. /DE/	Exercise(M)	24,952	-	$0	Direct
Feb 13, 2025	CLB Core Laboratories Inc. /DE/	Award(A) Performance Shares	32,912	-	-	Direct
Dec 31, 2024	CLB Core Laboratories Inc. /DE/	Tax Payment(F)	5,989	$17.31	$103,670	Direct
Dec 31, 2024	CLB Core Laboratories Inc. /DE/	Exercise(M)	9,604	-	$0	Direct

1-6 of 6 transactions

About Gresham Gwendolyn

Gresham Gwendolyn (SEC CIK 0001842114) files insider reports with the SEC as SVP of Core Laboratories Inc. /DE/ (CLB).

Signal8 holds 4 ownership filings by Gresham Gwendolyn, all Form 4s, filed between Jan 3, 2025 and Feb 17, 2026. Those filings report 6 transactions, from Dec 31, 2024 to Feb 12, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Gresham Gwendolyn's filings is in HOUSTON, TX.

Recent filings by Gresham Gwendolyn

Feb 12, 2026: Grant or award of CLB derivative securities (Form 4, code A).
Dec 31, 2025: Tax withholding of CLB shares (Form 4, code F).
Dec 31, 2025: Option exercise of CLB shares (Form 4, code M).
Feb 13, 2025: Grant or award of CLB derivative securities (Form 4, code A).
Dec 31, 2024: Tax withholding of CLB shares (Form 4, code F).

Other insiders filing for Core Laboratories Inc. /DE/ (CLB)

Tattoli Mark Damian, SVP, Gen Counsel & Secretary
Teo Sow Hang, CAO & Treasurer
Bruno Lawrence, Chairman and CEO
Murray Katherine, Director
ANASTASIO CURT, Director
Klingensmith Harvey Robert, Director

How to read Form 4 transaction codes