PepGen (PEPG) director Howard Mayer awarded options on 34,000 shares

Rhea-AI Filing Summary

PepGen Inc. director Howard Mayer received a grant of stock options covering 34,000 shares of common stock. The options have an exercise price of $1.79 per share and expire on June 17, 2036. This grant is compensation-related and does not represent an open-market purchase or sale of shares.

According to the vesting terms, the option vests in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting, with vesting stopping if he ceases to serve as a director unless the board decides otherwise. Following this grant, Mayer holds 34,000 options directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Mayer Howard

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	34,000	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 34,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Options granted: 34,000 options Underlying shares: 34,000 shares Exercise price: $1.79 per share +2 more

5 metrics

Options granted 34,000 options Stock Option (Right to Buy) grant on common stock

Underlying shares 34,000 shares Common Stock underlying the option grant

Exercise price $1.79 per share Conversion or exercise price of the option

Expiration date June 17, 2036 Option expiration for the director grant

Post-grant derivative holdings 34,000 options Total derivative securities held following transaction

Key Terms

Stock Option (Right to Buy), Common Stock, Grant, award, or other acquisition, Annual Meeting, +1 more

5 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

Common Stock financial

"underlying_security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Annual Meeting financial

"the date of the next Annual Meeting; provided, however"

A company's annual meeting is a yearly gathering where owners (shareholders) and the board review performance, ask questions, and vote on key matters like electing directors, approving auditor choices, and sometimes setting pay or dividend policies. For investors it matters because decisions made and votes cast can change who runs the company, influence strategy and payouts, and affect the value or direction of their investment—similar to a homeowners’ meeting where rules and leaders that shape your property’s value are decided.

vesting financial

"all vesting shall cease if the individual ceases to serve"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/22/2026 - 04:11 PM Accepted by SEC EDGAR 06/22/2026 - 04:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mayer Howard

(Last) (First) (Middle)

C/O PEPGEN INC.

321 HARRISON AVENUE, 8TH FLOOR

(Street)

BOSTON MASSACHUSETTS 02118

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PepGen Inc. [ PEPG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$1.79	06/18/2026		A		34,000		(1)	06/17/2036	Common Stock	34,000	$0	34,000	D

Explanation of Responses:

1. This option shall vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next Annual Meeting; provided, however, that all vesting shall cease if the individual ceases to serve as a director, unless the Board of Directors determines that the circumstances warrant continuation of vesting.

	/s/ Noel Donnelly, as attorney-in-fact	06/22/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Howard Mayer report in his Form 4 for PepGen (PEPG)?

Howard Mayer reported receiving a grant of stock options for 34,000 shares of PepGen common stock. These options are compensation for board service, not an open-market purchase, and give him the right to buy shares at a fixed exercise price in the future.

How many PepGen (PEPG) stock options did Howard Mayer receive?

He received stock options covering 34,000 shares of PepGen common stock. All 34,000 underlying shares are tied to a single option grant, which represents his total reported derivative holdings after this transaction in the Form 4.

What is the exercise price and expiration date of Howard Mayer’s PepGen options?

The options have an exercise price of $1.79 per share and an expiration date of June 17, 2036. This means he can choose to buy PepGen shares at $1.79 any time before that expiration if the options have vested.

How do Howard Mayer’s PepGen (PEPG) options vest?

The option vests in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting. Vesting stops if he no longer serves as a director, unless PepGen’s board decides vesting should continue under specific circumstances.

Does Howard Mayer’s Form 4 indicate any PepGen share purchases or sales?

No, the Form 4 shows only a grant of stock options, coded as an acquisition (A) for compensation. There are no open-market purchases or sales of PepGen common stock reported in this filing, just the award of derivative securities.