1 institutions reported holding $1.7M of Partners Bank of California (PBKX) in SEC 13F filings for 2026-03-31. Largest institutional holders: Siena Capital Partners GP, LLC ($1.7M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Siena Capital Partners GP, LLC | $1.7M | 134,955 | Added |
Source: SEC Form 13F filings · as of 2026-03-31