Insiders / Westlake BioPartners Fund II, L.P.
Westlake BioPartners Fund II, L.P.
CIK 1811947personinsider
Companies
2
First seen
May 4, 2023
Last activity
Aug 11, 2026
Holdings
2 companies · 1 positionView all →
| Company / security | Shares held | Latest |
|---|---|---|
| ACELYRIN, Inc. · SLRN | 9,790,729 | — |
| Common stock | 9,790,729 | May 9, 2023 |
| Latigo Biotherapeutics, Inc. · LTGO | — | — |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| May 9, 2023 | Buy Open-market buy | SLRN ACELYRIN, Inc. Common Stock | $22.50M | +1.3M +14.64% | 9,790,729 | high |
| May 9, 2023 | Other Derivative conversion | SLRN ACELYRIN, Inc. Series C Redeemable Convertible Preferred Stock | — | -2.0M -100.00% | 0 | low |
| May 9, 2023 | Other Derivative conversion | SLRN ACELYRIN, Inc. Series B Redeemable Convertible Preferred Stock | — | -2.4M -100.00% | 0 | low |
| May 9, 2023 | Other Derivative conversion | SLRN ACELYRIN, Inc. Series A Redeemable Convertible Preferred Stock | — | -4.1M -100.00% | 0 | low |