Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
171 institutional managers reported holding XPRO for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 71%. 23 opened new positions; 22 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| T. Rowe Price | 12.58M | 11.07% | $219.1M | added +14.1% | 2021 Q4 |
| OAK Hill Advisors LP (focused) | 11.94M | 10.51% | $208.0M | trimmed -1.6% | 2021 Q4 |
| Vanguard Group | 10.63M | 9.35% | $185.0M | unchanged | 2021 Q4 |
| FMR (Fidelity) | 9.85M | 8.67% | $171.5M | trimmed -2.5% | 2022 Q1 |
| BlackRock | 7.61M | 6.70% | $132.5M | trimmed -3.5% | 2021 Q4 |
| T. Rowe Price Investment Management, INC. | 7.13M | 6.27% | $124.1M | added +116.5% | 2022 Q3 |
| Earnest Partners LLC | 6.32M | 5.56% | $110.1M | trimmed -2.6% | 2024 Q1 |
| Dimensional Fund Advisors | 5.92M | 5.21% | $103.1M | added +9.9% | 2021 Q4 |
| Jennison Associates LLC | 4.70M | 4.14% | $81.8M | added +7.9% | 2025 Q4 |
| American Century Companies INC | 4.48M | 3.95% | $78.1M | trimmed -15% | 2022 Q3 |
| State Street | 2.69M | 2.37% | $46.9M | added +1.9% | 2021 Q4 |
| MFS Investment Management | 2.52M | 2.22% | $43.9M | trimmed -9.8% | 2021 Q4 |
| Geode Capital | 2.23M | 1.96% | $38.9M | trimmed -1.2% | 2021 Q4 |
| William Blair Investment Management, LLC | 2.20M | 1.94% | $38.4M | added +3.2% | 2021 Q4 |
| Ameriprise Financial INC | 1.53M | 1.34% | $26.6M | added +428.2% | 2021 Q4 |
| Webs Creek Capital Management LP (focused) | 1.48M | 1.30% | $25.8M | trimmed -11.5% | 2023 Q1 |
| Charles Schwab Investment Management | 1.39M | 1.22% | $24.2M | added +2.3% | 2021 Q4 |
| Hotchkis & Wiley Capital Management LLC | 1.30M | 1.15% | $22.7M | trimmed -24.6% | 2021 Q4 |
| BNY Mellon | 1.07M | 0.95% | $18.7M | trimmed -8.9% | 2021 Q4 |
| Goldman Sachs | 1.07M | 0.94% | $18.6M | trimmed -14.7% | 2022 Q1 |
| Leeward Investments, LLC - MA | 973.5k | 0.86% | $17.0M | trimmed -2.7% | 2024 Q4 |
| Bridgeway Capital Management, LLC | 941.5k | 0.83% | $16.4M | added +2.5% | 2025 Q4 |
| Qube Research & Technologies LTD | 825.9k | 0.73% | $14.4M | unchanged | 2023 Q1 |
| AQR Capital | 649.6k | 0.57% | $11.3M | trimmed -13% | 2023 Q3 |
| Morgan Stanley | 635.6k | 0.56% | $11.1M | trimmed -39.2% | 2021 Q4 |
| Sagefield Capital LP | 598.1k | 0.53% | $10.4M | trimmed -14.8% | 2023 Q3 |
| Bank OF America CORP /DE/ | 551.5k | 0.48% | $9.6M | trimmed -20.1% | 2021 Q4 |
| Empowered Funds, LLC | 542.5k | 0.48% | $9.4M | added +5% | 2025 Q4 |
| UBS | 534.3k | 0.47% | $9.3M | trimmed -37.1% | 2022 Q1 |
| Invesco | 482.3k | 0.42% | $8.4M | added +37.8% | 2021 Q4 |
| Oberweis Asset Management INC/ | 454.6k | 0.40% | $7.9M | added +1.9% | 2025 Q3 |
| Barclays PLC | 352.2k | 0.31% | $6.1M | trimmed -25.4% | 2022 Q1 |
| Millennium Management | 336.7k | 0.30% | $5.9M | added +31.4% | 2022 Q1 |
| Franklin Resources | 334.9k | 0.29% | $5.8M | added +304.7% | 2025 Q3 |
| First Trust Advisors LP | 316.8k | 0.28% | $5.5M | trimmed -3.9% | 2022 Q2 |
| Envestnet Asset Management INC | 294.6k | 0.26% | $5.1M | added +0.8% | 2023 Q3 |
| Nuveen | 283.0k | 0.25% | $4.9M | trimmed -6.1% | 2021 Q4 |
| Aventail Capital Group, LP | 271.9k | 0.24% | $4.7M | added +30.4% | 2023 Q4 |
| Wells Fargo & COMPANY/MN | 271.2k | 0.24% | $4.7M | trimmed -18.2% | 2021 Q4 |
| Insight Wealth Strategies, LLC | 270.4k | 0.24% | $4.7M | added +1.1% | 2025 Q4 |
| Panagora Asset Management INC | 232.7k | 0.20% | $4.1M | added +194.8% | 2025 Q4 |
| Swiss National Bank | 202.2k | 0.18% | $3.5M | trimmed -1.4% | 2021 Q4 |
| Citadel Advisors | 200.2k | 0.18% | $3.5M | added +16.4% | 2022 Q1 |
| CastleKnight Management LP | 191.9k | 0.17% | $3.3M | added +6.7% | 2025 Q2 |
| Russell Investments Group, LTD. | 182.6k | 0.16% | $3.2M | trimmed -15.9% | 2024 Q2 |
| Federated Hermes, INC. | 181.7k | 0.16% | $3.2M | trimmed -1.5% | 2022 Q4 |
| Marshall Wace | 180.5k | 0.16% | $3.1M | opened | 2026 Q1 |
| Susquehanna International Group | 168.1k | 0.15% | $2.9M | added +6.7% | 2021 Q4 |
| Deutsche Bank AG\ | 163.6k | 0.14% | $2.8M | added +6.5% | 2021 Q4 |
| SEI Investments CO | 163.1k | 0.14% | $2.8M | added +36.2% | 2021 Q4 |
Largest 50 of 171 shown; the full ranked, searchable register is at boothcheck.com/holders/XPRO. 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.