Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 17, 2024



PepGen Inc.

(Exact name of Registrant as Specified in Its Charter)






(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)






321 Harrison Avenue

8th Floor


Boston, Massachusetts



(Address of Principal Executive Offices)


(Zip Code)


Registrant’s Telephone Number, Including Area Code: 781 797-0979



(Former Name or Former Address, if Changed Since Last Report)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class




Name of each exchange on which registered

Common stock, par value $0.0001 per share




Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.


Item 8.01 Other Events.

On January 17, 2024 PepGen Inc. (the “Company”) announced the appointment of Mary Beth DeLena as General Counsel and Secretary of the Company. A copy of the press release issued in connection with this announcement is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:


Exhibit Number



Press release issued by PepGen inc. on January 17, 2024


Cover Page Interactive Data File (embedded within the Inline XBRL document)



Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.










January 17, 2024


/s/ Noel Donnelly




Noel Donnelly, Chief Financial Officer





Mary Beth DeLena Joins PepGen as General Counsel and Secretary

BOSTON, Jan. 17, 2024 -- PepGen Inc. (Nasdaq: PEPG), a clinical-stage biotechnology company advancing the next generation of oligonucleotide therapies with the goal of transforming the treatment of severe neuromuscular and neurological diseases, today announced the expansion of its executive team with the appointment of Mary Beth DeLena as General Counsel and Secretary. Ms. DeLena joins PepGen with over 20 years of experience advising global life science companies in a broad range of strategic, transactional, and corporate matters with extensive experience in business development, finance, securities, corporate governance, employment and commercial law.


Prior to PepGen, Mary Beth spent 15 years at Alnylam Pharmaceuticals in roles of increasing responsibility, most recently serving as Senior Vice President, Deputy General Counsel, and Assistant Secretary. There, she played a pivotal role in the company’s growth and success, supporting its transition from early research and development to the approval and commercial launch of multiple products in countries around the world. During her tenure at Alnylam, Mary Beth advised on multiple transformational strategic collaborations, licensing transactions, and significant capital-raising initiatives. Before joining Anylam, she was with Praecis Pharmaceuticals, establishing and managing the corporate legal function. She started her legal career as an associate in the Boston office of Skadden, Arps, Slate, Meagher & Flom LLP. Mary Beth received her Juris Doctor from Northeastern University School of Law and her Bachelor of Arts in English from Trinity College.


“We are excited to welcome Mary Beth to the team and look forward to leveraging her extensive legal and compliance experience advising public life science companies,” said James McArthur, Ph.D., President and CEO of PepGen. “Mary Beth's considerable expertise in commercial, regulatory, and policy matters will play a crucial role at PepGen as we advance our goal of delivering next-generation oligonucleotide therapies for severe neuromuscular and neurological diseases.”


About PepGen

PepGen Inc. is a clinical-stage biotechnology company advancing the next-generation of oligonucleotide therapies with the goal of transforming the treatment of severe neuromuscular and neurological diseases. PepGen’s Enhanced Delivery Oligonucleotide, or EDO, platform is founded on over a decade of research and development and leverages cell-penetrating peptides to improve the uptake and activity of conjugated oligonucleotide therapeutics. Using these EDO peptides, we are generating a pipeline of oligonucleotide therapeutic candidates that are designed to target the root cause of serious diseases.










Investor Contact

Laurence Watts

Gilmartin Group


Media Contact

Sarah Sutton

Argot Partners