Joseph Vittiglio - 01 Mar 2026 Form 4 Insider Report for PepGen Inc. (PEPG)

Reporting relationship: Chief Business & Legal Officer
Issuer ticker: PEPG
Reported as of: 01 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Mar 2026, 17:09:21 UTC
Prior SEC filing: 10 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Noel Donnelly, as attorney-in-fact

Key filing fact

Joseph Vittiglio filed Form 4 for PepGen Inc. (PEPG) on 02 Mar 2026.

Key facts

This page summarizes Joseph Vittiglio's Form 4 filing for PepGen Inc. (PEPG).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 02 Mar 2026, 17:09.

Change

Previous filing in this sequence was filed on 10 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001551776 Primary reporting owner

Vittiglio Joseph

Relationship: Chief Business & Legal Officer
Address: C/O PEPGEN INC., 321 HARRISON AVE, 8TH FLOOR, BOSTON
Signature: /s/ Noel Donnelly, as attorney-in-fact
Signature date: 02 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PEPG transaction

Common Stock

Award

Transaction value: $0
Shares: +30,717
Change %: +88%
Price: $0.000000
Shares after: 65,717
Date: 01 Mar 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PEPG transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value: $0
Shares: +120,000
Change %
Price: $0.000000
Shares after: 120,000
Date: 01 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 120,000
Exercise price: $6.22
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Consists of 30,717 restricted stock units ("RSUs"), each representing the contingent right to receive one share of Common Stock upon vesting. The RSUs vest in equal annual installments over four years, with the first installment vesting on March 1, 2027, subject to the Reporting Person's continued service to the Issuer on each such vesting date.

Footnote F2

This option shall vest and become exercisable as follows: 25% of the shares on the one-year anniversary of the Grant Date, with the remaining 75% vesting and becoming exercisable in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer on each such vesting date.