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SC Filed 2021-01-27 Event — SEC 0001193125-21-019026 →

Frazier Life Sciences IX, L.P. Passage BIO, Inc. PASG

Stake: Shares:

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)
9 transactions
5 buys · 2 sales · 2 awards/exercises
Issuer Cluster
5 13D/G filings on this issuer
4 other filings besides this one
Filer Track Record
6 filings by this filer
5 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 2.58
124,628 shares short · +9.1% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-03-16 Borthwick Kathleen officer Award 15,610 $7.64 $119K
2026-03-16 Chou William director, officer Award 58,000 $7.64 $443K
2026-01-08 Chou William director, officer Option exercise 10,000
2026-01-08 Borthwick Kathleen officer Option exercise 5,000
2026-01-08 Chou William director, officer Sale 4,076 $18.44 $75K
2026-01-08 Borthwick Kathleen officer Sale 2,062 $18.44 $38K
2025-09-15 Lynx1 Capital Management LP 10%+ owner Buy 11,900 $6.99 $83K
2025-09-12 Lynx1 Capital Management LP 10%+ owner Buy 19,783 $6.99 $138K
2025-09-11 Lynx1 Capital Management LP 10%+ owner Buy 325 $6.96 $2K

Other 13D/G Filings on Passage BIO, Inc.

FiledFormFilerStakeShares
2026-07-02 SCHEDULE 13D Lynx1 Capital Management LP 21.00% 673,759 view →
2026-06-25 SCHEDULE 13G Baselake Partners, LP view →
2025-07-21 SCHEDULE ORBIMED ADVISORS LLC 7.82% 243,878 view →
2024-04-12 SC ORBIMED ADVISORS LLC view →

Other Filings by Frazier Life Sciences IX, L.P.

FiledFormIssuerStakeShares
2026-01-27 SCHEDULE Mirum Pharmaceuticals, Inc. MIRM 6.80% 4,108,404 view →
2023-09-05 SC Mirum Pharmaceuticals, Inc. MIRM view →
2022-09-26 SC Phathom Pharmaceuticals, Inc. PHAT view →
2020-12-18 SC Mirum Pharmaceuticals, Inc. MIRM view →
2020-04-29 SC Mirum Pharmaceuticals, Inc. MIRM view →

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