Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
298 institutional managers reported holding GPOR for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 51%. 48 opened new positions; 54 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Silver Point Capital L.p. (focused) | 2.61M | 13.94% | $551.2M | trimmed -24.5% | 2021 Q2 |
| BlackRock | 1.16M | 6.22% | $246.1M | added +0.5% | 2021 Q2 |
| Vanguard Group | 1.15M | 6.13% | $242.2M | added +9.2% | 2021 Q3 |
| FMR (Fidelity) | 915.5k | 4.90% | $193.6M | trimmed -14.6% | 2021 Q3 |
| State Street | 764.8k | 4.09% | $161.7M | added +34.8% | 2021 Q3 |
| Dimensional Fund Advisors | 630.1k | 3.37% | $133.2M | added +5.8% | 2021 Q3 |
| Jennison Associates LLC | 620.8k | 3.32% | $131.3M | trimmed -7.5% | 2024 Q4 |
| Nomura Asset Management International INC. | 589.8k | 3.15% | $124.7M | added +20.8% | 2025 Q4 |
| Victory Capital Management INC | 538.3k | 2.88% | $113.8M | added +2.1% | 2021 Q3 |
| Gemsstock LTD. (focused) | 508.2k | 2.72% | $107.5M | added +50.7% | 2025 Q1 |
| Assenagon Asset Management S.a. | 467.4k | 2.50% | $98.8M | added +4946.1% | 2023 Q3 |
| Adage Capital Partners GP, L.l.c. | 460.1k | 2.46% | $97.3M | added +3.1% | 2024 Q3 |
| Arrowstreet Capital | 398.9k | 2.13% | $84.4M | added +12.9% | 2023 Q2 |
| Geode Capital | 377.7k | 2.02% | $79.9M | added +2.8% | 2021 Q3 |
| T. Rowe Price Investment Management, INC. | 371.2k | 1.99% | $78.5M | added +231.7% | 2024 Q1 |
| Palo Duro Investment Partners, LP (focused) | 352.1k | 1.88% | $74.5M | added +58.2% | 2025 Q1 |
| Principal Financial Group INC | 310.0k | 1.66% | $65.6M | trimmed -11.6% | 2022 Q2 |
| Westwood Holdings Group INC | 271.0k | 1.45% | $57.3M | added +7.4% | 2024 Q4 |
| Charles Schwab Investment Management | 240.1k | 1.28% | $50.8M | added +4.9% | 2021 Q3 |
| Janus Henderson | 223.7k | 1.20% | $47.3M | added +4.2% | 2022 Q2 |
| Frontier Capital Management CO LLC | 221.9k | 1.19% | $46.9M | opened | 2026 Q1 |
| Whitebox Advisors LLC | 219.6k | 1.18% | $46.4M | trimmed -2.2% | 2021 Q2 |
| Goldentree Asset Management LP (focused) | 216.3k | 1.16% | $45.7M | added +43.1% | 2025 Q3 |
| Millennium Management | 202.5k | 1.08% | $42.8M | trimmed -37.9% | 2022 Q1 |
| American Century Companies INC | 201.6k | 1.08% | $42.6M | added +62.7% | 2022 Q4 |
| William Blair Investment Management, LLC | 198.8k | 1.06% | $42.0M | added +3.4% | 2024 Q1 |
| Global Alpha Capital Management LTD. | 190.5k | 1.02% | $40.3M | trimmed -0.8% | 2024 Q4 |
| Northern Trust | 179.0k | 0.96% | $37.9M | added +32.2% | 2021 Q3 |
| Bank OF America CORP /DE/ | 152.2k | 0.81% | $32.2M | added +50.3% | 2021 Q2 |
| Pictet Asset Management Holding SA | 149.7k | 0.80% | $31.6M | trimmed -9.4% | 2021 Q2 |
| Hite Hedge Asset Management LLC | 148.2k | 0.79% | $31.3M | added +411.4% | 2023 Q4 |
| Renaissance Technologies | 137.2k | 0.73% | $29.0M | added +582.6% | 2021 Q4 |
| Fort Washington Investment Advisors INC /OH/ | 129.0k | 0.69% | $27.3M | added +18.5% | 2025 Q3 |
| UBS | 129.0k | 0.69% | $27.3M | added +34.8% | ≤2013 |
| Gw&k Investment Management, LLC | 121.7k | 0.65% | $25.7M | trimmed -2.1% | 2025 Q2 |
| Wellington Management | 119.1k | 0.64% | $25.2M | trimmed -72.9% | 2022 Q1 |
| Mackenzie Financial CORP | 117.0k | 0.63% | $24.7M | trimmed -21.2% | 2023 Q4 |
| Penn Capital Management Company, LLC | 111.4k | 0.60% | $23.6M | added +15.1% | 2024 Q4 |
| AQR Capital | 106.7k | 0.57% | $22.6M | trimmed -20.6% | 2022 Q1 |
| Goldman Sachs | 104.5k | 0.56% | $22.1M | trimmed -32.4% | 2021 Q2 |
| Raymond James Financial INC | 103.3k | 0.55% | $21.9M | trimmed -2.4% | 2023 Q3 |
| Ameriprise Financial INC | 101.9k | 0.55% | $21.6M | unchanged | 2023 Q2 |
| Systematic Financial Management LP | 101.7k | 0.54% | $21.5M | added +10.5% | 2025 Q3 |
| LSP Investment Advisors, LLC (focused) | 98.8k | 0.53% | $20.9M | trimmed -9.4% | 2025 Q3 |
| Mackay Shields LLC (focused) | 98.6k | 0.53% | $20.8M | trimmed -9.2% | 2021 Q2 |
| Morgan Stanley | 92.7k | 0.50% | $19.6M | added +58.2% | 2021 Q2 |
| Bridgewater Associates | 91.8k | 0.49% | $19.4M | trimmed -19.6% | 2023 Q4 |
| Corigliano Investment Advisers, LLC (focused) | 81.1k | 0.43% | $17.2M | added +2357.6% | 2025 Q1 |
| First Trust Advisors LP | 79.0k | 0.42% | $16.7M | added +74.2% | 2021 Q4 |
| Alyeska Investment Group | 78.1k | 0.42% | $16.5M | opened | 2023 Q4 |
Largest 50 of 298 shown; the full ranked, searchable register is at boothcheck.com/holders/GPOR. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.