Frazier Life Sciences X, L.P.
SEC insider (Form 3/4/5 filer). CIK 0001790879. 10% Owner at HilleVax, Inc. (HLVX) and 1 other issuer. 4 reported Form 4/5 transactions since Sep 2024; latest on Sep 17, 2025. Located in CARMEL, IN.
Companies Frazier Life Sciences X, L.P. has filed insider reports for
- HilleVax, Inc. (HLVX): 10% Owner
- MBX Biosciences, Inc. (MBX): 10% Owner
Frazier Life Sciences X, L.P.
CIK: 0001790879
Transaction Breakdown
Open Market Buys (P)1 (25.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)3 (75.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Sep 17, 2025HLVX
HilleVax, Inc.
Tender OfferIndirect8.5M shares at avg. $1.95$16.6M - Sep 17, 2025HLVX
HilleVax, Inc.
Tender OfferIndirect17.2K shares at avg. $1.95$34K - Sep 16, 2024MBX
MBX Biosciences, Inc.
ConversionDirect3.9M shares- - Sep 16, 2024MBX
MBX Biosciences, Inc.
PurchaseDirect625K shares at avg. $16.00$10.0M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 17, 2025 |  HLVX HilleVax, Inc. | Tender Offer | 8,535,337 | $1.95 | $16,643,907 | Indirect |
| Sep 17, 2025 | HLVX HilleVax, Inc. | Tender Offer | 17,199 | $1.95 | $33,538 | Indirect |
| Sep 16, 2024 |  MBX MBX Biosciences, Inc. | Conversion | 3,927,774 | - | $0 | Direct |
| Sep 16, 2024 | MBX MBX Biosciences, Inc. | Purchase | 625,000 | $16.00 | $10,000,000 | Direct |
1-4 of 4 transactions