Mark White

CIK: 0001916493

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

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

Companies & Roles (1)

NXL

Nexalin Technology, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (3 total)

NXL
Nexalin Technology, Inc.
Dec 19, 2025
Award(A)
Stock Option (right to buy)*
Direct
1M shares-
NXL
Nexalin Technology, Inc.
Feb 26, 2025
Award(A)
Stock Option (right to buy)
Direct
447.4K shares-
NXL
Nexalin Technology, Inc.
Feb 26, 2025
Award(A)
Stock Option (right to buy)
Direct
939.6K shares-

		Type	Shares	Price		Ownership
Dec 19, 2025	NXL Nexalin Technology, Inc.	Award(A) Stock Option (right to buy)*	1,000,000	-	-	Direct
Feb 26, 2025	NXL Nexalin Technology, Inc.	Award(A) Stock Option (right to buy)	447,427	-	-	Direct
Feb 26, 2025	NXL Nexalin Technology, Inc.	Award(A) Stock Option (right to buy)	939,597	-	-	Direct

1-3 of 3 transactions

About White Mark

White Mark (SEC CIK 0001916493) files insider reports with the SEC as President and CEO of Nexalin Technology, Inc. (NXL).

Signal8 holds 2 ownership filings by White Mark, all Form 4s, filed between Feb 27, 2025 and Dec 23, 2025. Those filings report 3 transactions, from Feb 26, 2025 to Dec 19, 2025. Signal8's Form 4 history starts in Sep 2024.

The business address on White Mark's filings is in HOUSTON, TX.

Recent filings by White Mark

Dec 19, 2025: Grant or award of NXL derivative securities (Form 4, code A).
Feb 26, 2025: Grants or awards of NXL derivative securities (2 lines, Form 4, code A).

Other insiders filing for Nexalin Technology, Inc. (NXL)

Van Fleet Justin, CFO
Owens David, Chief Medical Officer
Shelton Carolyn Hamby, Senior VP
Hu Ben, Director
Kazden Alan, Director
OSSER LEONARD, 10% Owner

How to read Form 4 transaction codes