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The mandatory sale of the Reporting Person's shares was provided for in a RSU agreement constituting a \"binding contract\" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.41 to $1.4541, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":50074,"source":{"system":"sec-edgar","filing":"0001193125-26-239506","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1835597/000119312526239506/ownership.xml","form_type":"4"}},{"id":873337,"issuer":{"id":6253,"kind":"organization","name":"PepGen Inc."},"owners":[{"id":44086,"kind":"person","name":"Kasraian Kasra","position":1,"cik":"0002068538","reported_name":"Kasraian Kasra","relationship":{"officer":true,"officer_title":"Chief Technical Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2026-03-02T22:07:18.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":135000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."}],"balance_after":135000,"derivative":{"exercise_price":6.22,"expiration_date":"2036-02-29","underlying":"Common Stock","underlying_shares":135000},"source":{"system":"sec-edgar","filing":"0001835597-26-000008","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1835597/000183559726000008/form4.xml","form_type":"4"}},{"id":873336,"issuer":{"id":6253,"kind":"organization","name":"PepGen Inc."},"owners":[{"id":44086,"kind":"person","name":"Kasraian Kasra","position":1,"cik":"0002068538","reported_name":"Kasraian Kasra","relationship":{"officer":true,"officer_title":"Chief Technical Officer"}}],"security":"Common Stock","published_at":"2026-03-02T22:07:18.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":34557,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Consists of 34,557 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."}],"balance_after":51307,"source":{"system":"sec-edgar","filing":"0001835597-26-000008","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1835597/000183559726000008/form4.xml","form_type":"4"}},{"id":1138539,"issuer":{"id":6253,"kind":"organization","name":"PepGen Inc."},"owners":[{"id":44086,"kind":"person","name":"Kasraian Kasra","position":1,"cik":"0002068538","reported_name":"Kasraian Kasra","relationship":{"officer":true,"officer_title":"Chief Technical Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-05-21T20:47:34.000Z","date":"2025-05-20","kind":"grant","planned":false,"acquired":true,"shares":75000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option shall vest as follows: twenty-five (25%) of the shares subject to the Option will vest and become exercisable on the first anniversary of the Vesting Commencement Date and, thereafter, the remaining seventy-five percent (75%) of the shares subject to the Option shall vest and become exercisable in thirty-six (36) substantially equal monthly installments following the first anniversary of the Vesting Commencement Date, in each case, subject to the Officer's continuous service with the Company through each vesting date."}],"balance_after":75000,"derivative":{"exercise_price":1.58,"exercise_date":"2026-05-20","expiration_date":"2035-05-19","underlying":"Common Stock","underlying_shares":75000},"source":{"system":"sec-edgar","filing":"0001127602-25-015213","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1835597/000112760225015213/form4.xml","form_type":"4"}},{"id":1138538,"issuer":{"id":6253,"kind":"organization","name":"PepGen Inc."},"owners":[{"id":44086,"kind":"person","name":"Kasraian Kasra","position":1,"cik":"0002068538","reported_name":"Kasraian Kasra","relationship":{"officer":true,"officer_title":"Chief Technical Officer"}}],"security":"Common Stock","published_at":"2025-05-21T20:47:34.000Z","date":"2025-05-20","kind":"grant","planned":false,"acquired":true,"shares":16750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"Twenty-five percent (25%) of the shares subject to the RSU will vest on the first anniversary of the Vesting Commencement Date and, thereafter, the remaining seventy-five (75%) will vest in substantially equal installments, in each case subject to the Officer's continuous service with the Company through each vesting date."}],"balance_after":16750,"source":{"system":"sec-edgar","filing":"0001127602-25-015213","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1835597/000112760225015213/form4.xml","form_type":"4"}}]}