9 institutions reported holding $4.8M of PLAINS GP HLDGS L P (PAGP) in SEC 13F filings for 2026-06-30. Largest institutional holders: Diesslin Group, Inc. ($2.0M), Chesley Taft & Associates LLC ($1.3M), WALNUT PRIVATE EQUITY PARTNERS, LLC ($1.2M), General Partner, Inc. ($133,485), GAMMA Investing LLC ($74,315). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Diesslin Group, Inc. | $2.0M | 82,841 | Added |
| 2 | Chesley Taft & Associates LLC | $1.3M | 53,900 | Trimmed |
| 3 | WALNUT PRIVATE EQUITY PARTNERS, LLC | $1.2M | 51,000 | Hold |
| 4 | General Partner, Inc. | $133,485 | 5,500 | Hold |
| 5 | GAMMA Investing LLC | $74,315 | 3,062 | Hold |
| 6 | Hilltop National Bank | $19,416 | 800 | Hold |
| 7 | HARBOR INVESTMENT ADVISORY, LLC | $5,170 | 213 | Hold |
| 8 | FNY Investment Advisers, LLC | $4,000 | 200 | New |
| 9 | Cedar Mountain Advisors, LLC | $1,141 | 47 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30