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SCHEDULE Filed 2025-09-30 Event 2025-09-26 SEC 0001346824-25-000009 →

RA CAPITAL MANAGEMENT, L.P. PepGen Inc. PEPG

Stake: 29.20% Shares: 20,099,753 CUSIP: 713317105 Class: Common stock, par value $0.0001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
42 transactions
24 buys · 18 sales · 0 awards/exercises
Issuer Cluster
2 13D/G filings on this issuer
1 other filing besides this one
Filer Track Record
78 filings by this filer
77 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 2.92
4,533,674 shares short · +13.3% vs prior

Institutional Consensus · 2026-03-31

Held by elite portfolio managers
2 holders · $20.97M
Point72 Asset MgmtViking Global

Post-Filing Returns · since 2025-09-26 on PEPG

+1 day
0.0%
+5 days
0.0%
+30 days
0.0%
+60 days
0.0%
+90 days
0.0%
+180 days
0.0%

Anchor price 2.05 on closest trading day on/after 2025-09-26. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-03-04 STRECK PAUL officer Sale 1,832 $6.23 $11K
2026-03-04 Donnelly Noel officer Sale 2,032 $6.23 $13K
2026-03-04 McArthur James G director, officer Sale 5,144 $6.23 $32K
2026-03-04 McArthur James G director, officer Sale 131 $6.33 $829
2026-03-04 Donnelly Noel officer Sale 52 $6.33 $329
2026-03-04 STRECK PAUL officer Sale 47 $6.29 $296
2026-03-01 Vittiglio Joseph officer Award 30,717
2026-03-01 Kasraian Kasra officer Award 34,557
2026-03-01 STRECK PAUL officer Award 50,300
2026-03-01 Donnelly Noel officer Award 76,793
2026-03-01 McArthur James G director, officer Award 187,688
2026-03-01 McArthur James G director, officer Award 731,250 $6.22 $4.55M
2026-03-01 Donnelly Noel officer Award 300,000 $6.22 $1.87M
2026-03-01 STRECK PAUL officer Award 196,500 $6.22 $1.22M
2026-03-01 Kasraian Kasra officer Award 135,000 $6.22 $840K
2026-03-01 Vittiglio Joseph officer Award 120,000 $6.22 $746K
2025-12-08 Vittiglio Joseph officer Award 35,000
2025-12-08 Vittiglio Joseph officer Award 160,000 $5.59 $894K
2025-11-04 STRECK PAUL officer Disposition 202,816 $9.83 $1.99M
2025-11-04 McArthur James G director, officer Disposition 352,705 $8.96 $3.16M
2025-11-04 Donnelly Noel officer Disposition 203,339 $10.88 $2.21M
2025-11-04 Donnelly Noel officer Award 203,339 $4.53 $921K
2025-11-04 Donnelly Noel officer Disposition 169,037 $12.00 $2.03M
2025-11-04 Donnelly Noel officer Award 169,037 $4.53 $766K
2025-11-04 Donnelly Noel officer Disposition 144,000 $15.25 $2.20M
Showing 25 of 42

Other 13D/G Filings on PepGen Inc.

FiledFormFilerStakeShares
2024-03-11 SC RA CAPITAL MANAGEMENT, L.P. view →

Other Filings by RA CAPITAL MANAGEMENT, L.P.

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2026-05-13 SCHEDULE 13D/A ARTIVA BIOTHERAPEUTICS, INC. ARTV 16,377,468 view →
2026-01-09 SCHEDULE Cidara Therapeutics, Inc. view →
2025-11-07 SCHEDULE Sionna Therapeutics, Inc. SION 22.60% 10,071,712 view →
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Showing 20 of 77

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