Robert D. Short III

CIK: 0001495444

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)1 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)2 (66.7%)

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

Companies & Roles (1)

VHC

VirnetX Holding Corp

Officer

Discretionary Trading P&L

Holdings

Transaction History (3 total)

VHC
VirnetX Holding Corp
Jul 7, 2025
Tax Payment(F)
Direct
50 shares at avg. $12.34$617
VHC
VirnetX Holding Corp
Jun 23, 2025
Tax Payment(F)
Direct
8 shares at avg. $8.06$64.48
VHC
VirnetX Holding Corp
Nov 12, 2024
Award(A)
Direct
30K shares-

		Type	Shares	Price		Ownership
Jul 7, 2025	VHC VirnetX Holding Corp	Tax Payment(F)	50	$12.34	$617	Direct
Jun 23, 2025	VHC VirnetX Holding Corp	Tax Payment(F)	8	$8.06	$64	Direct
Nov 12, 2024	VHC VirnetX Holding Corp	Award(A)	30,000	-	$0	Direct

1-3 of 3 transactions

About Short Robert D III

Short Robert D III (SEC CIK 0001495444) files insider reports with the SEC as Chief Scientist of VirnetX Holding Corp (VHC).

Signal8 holds 3 ownership filings by Short Robert D III, all Form 4s, filed between Nov 14, 2024 and Jul 11, 2025. Those filings report 3 transactions, from Nov 12, 2024 to Jul 7, 2025. Signal8's Form 4 history starts in Sep 2024.

The business address on Short Robert D III's filings is in ZEPHYR COVE, NV.

Recent filings by Short Robert D III

Jul 7, 2025: Tax withholding of VHC shares (Form 4, code F).
Jun 23, 2025: Tax withholding of VHC shares (Form 4, code F).
Nov 12, 2024: Grant or award of VHC shares (Form 4, code A).

Other insiders filing for VirnetX Holding Corp (VHC)

Angelo Michael F, Director
Larsen Kendall, President & CEO
Feiner Gary, Director
Allanson Katherine, Chief Financial Officer
O'BRIEN THOMAS M, Director
Chow Heidy Kingwan, Director

How to read Form 4 transaction codes