James G. McArthur

CIK: 0001763307

Transaction Breakdown

Open Market Buys (P)2 (10.0%)

High conviction signal

Open Market Sales (S)2 (10.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)9 (45.0%)

Compensation grants

Other (G, F, J, C, D, …)7 (35.0%)

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

Companies & Roles (1)

PEPG

PepGen Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (20 total)

PEPG
PepGen Inc.
Mar 4, 2026
Sale(S)
Direct
131 shares at avg. $6.33$828.575
PEPG
PepGen Inc.
Mar 4, 2026
Sale(S)
Direct
5.1K shares at avg. $6.23$32K
PEPG
PepGen Inc.
Mar 1, 2026
Award(A)
Direct
187.7K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
300K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
275K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
275K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
300K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
352.7K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
352.7K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
40.8K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Disposition(D)
Stock Option (Right to Buy)
Direct
466.1K shares-
PEPG
PepGen Inc.
Nov 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
466.1K shares-
PEPG
PepGen Inc.
Apr 17, 2025
Purchase(P)
Direct
10K shares at avg. $1.35$14K
PEPG
PepGen Inc.
Apr 8, 2025
Purchase(P)
Direct
41.5K shares at avg. $1.15$48K
PEPG
PepGen Inc.
Mar 3, 2025
Award(A)
Direct
60.7K shares-

		Type	Shares	Price		Ownership
Mar 4, 2026	PEPG PepGen Inc.	Sale(S)	131	$6.33	$829	Direct
Mar 4, 2026	PEPG PepGen Inc.	Sale(S)	5,144	$6.23	$32,047	Direct
Mar 1, 2026	PEPG PepGen Inc.	Award(A)	187,688	-	$0	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	300,000	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	275,000	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	275,000	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	300,000	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	352,705	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	352,705	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	40,815	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Disposition(D) Stock Option (Right to Buy)	466,095	-	-	Direct
Nov 4, 2025	PEPG PepGen Inc.	Award(A) Stock Option (Right to Buy)	466,095	-	-	Direct
Apr 17, 2025	PEPG PepGen Inc.	Purchase(P)	10,000	$1.35	$13,550	Direct
Apr 8, 2025	PEPG PepGen Inc.	Purchase(P)	41,500	$1.15	$47,725	Direct
Mar 3, 2025	PEPG PepGen Inc.	Award(A)	60,719	-	-	Direct

1-20 of 20 transactions

About McArthur James G

McArthur James G (SEC CIK 0001763307) files insider reports with the SEC as President and CEO of PepGen Inc. (PEPG).

Signal8 holds 6 ownership filings by McArthur James G, all Form 4s, filed between Mar 5, 2025 and Mar 6, 2026. Those filings report 20 transactions, from Mar 3, 2025 to Mar 4, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on McArthur James G's filings is in BOSTON, MA.

Recent filings by McArthur James G

Mar 4, 2026: Open-market sales of PEPG shares (2 lines, Form 4, code S).
Mar 1, 2026: Grant or award of PEPG shares (Form 4, code A).
Nov 4, 2025: Grant or award of PEPG derivative securities (Form 4, code A).
Nov 4, 2025: Disposition to issuer transaction of PEPG derivative securities (Form 4, code D).
Nov 4, 2025: Grant or award of PEPG derivative securities (Form 4, code A).

Other insiders filing for PepGen Inc. (PEPG)

RA CAPITAL MANAGEMENT, L.P., Director
Wyman Lisa, Director
Resnick Joshua, Director
Mayer Howard, Director
Finer Mitchell H., Director
Dable Habib J, Director

How to read Form 4 transaction codes