Quick Takeaways
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/ filed SCHEDULE 13G/A for PLAINS GP HOLDINGS, L.P. Common Stock (PAGP).
- Disclosed ownership: 4.8%.
- Date of event: 31 Dec 2025.
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - 31 Dec 2025 SCHEDULE 13G/A Report for PLAINS GP HOLDINGS, L.P. Common Stock (PAGP)
- Filing Manager
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/
- Reporting Manager
- Massachusetts Financial Services Company
- Symbol
- PAGP
- Shares outstanding
- 198,689,104 shares
- Disclosed Ownership
- 9,537,077 shares
- Ownership
- 4.8%
- Form type
- SCHEDULE 13G/A
- Filing time
- 28 Jan 2026, 13:58:45 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 04 Aug 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"MASSACHUSETTS FINANCIAL SERVICES CO /MA/ disclosed 4.8% ownership in PLAINS GP HOLDINGS, L.P. Common Stock (PAGP) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 04 Aug 2025.
- Current filing was accepted on 28 Jan 2026, 13:58.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Massachusetts Financial Services Company | 4.8% | 9,537,077 | 9,516,370 | 0 | Deepu Pylee | Compliance Director |