Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
276 institutional managers reported holding PI for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 66%. 41 opened new positions; 75 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.31M | 14.24% | $443.4M | added +1.1% | 2016 Q3 |
| FMR (Fidelity) | 4.28M | 14.13% | $440.0M | trimmed -4.9% | 2019 Q4 |
| Vanguard Group | 3.64M | 12.02% | $374.3M | added +5% | 2016 Q3 |
| State Street | 1.48M | 4.90% | $152.6M | added +16.3% | 2016 Q3 |
| Capital International Investors | 1.35M | 4.46% | $139.0M | trimmed -13.5% | 2023 Q4 |
| Sylebra Capital LLC (focused) | 1.13M | 3.74% | $116.4M | unchanged | 2017 Q1 |
| UBS | 1.04M | 3.42% | $106.5M | added +52.6% | 2016 Q4 |
| Capital Group (American Funds) | 1.02M | 3.35% | $104.4M | added +34.7% | 2023 Q3 |
| Ameriprise Financial INC | 858.3k | 2.83% | $88.2M | added +2% | 2019 Q2 |
| American Century Companies INC | 818.0k | 2.70% | $84.1M | added +20.4% | 2024 Q1 |
| Alyeska Investment Group | 734.8k | 2.43% | $75.5M | opened | 2025 Q3 |
| Chevy Chase Trust Holdings, LLC | 728.4k | 2.40% | $74.9M | added +6.8% | 2017 Q2 |
| Geode Capital | 682.0k | 2.25% | $70.1M | added +2.1% | 2016 Q3 |
| Manufacturers Life Insurance Company, THE | 425.9k | 1.41% | $43.8M | added +2441% | 2019 Q2 |
| Whale Rock Capital (focused) | 405.2k | 1.34% | $41.7M | trimmed -54.3% | 2025 Q1 |
| T. Rowe Price | 305.7k | 1.01% | $31.4M | trimmed -55.9% | 2017 Q4 |
| T. Rowe Price Investment Management, INC. | 300.1k | 0.99% | $30.8M | added +2435.7% | 2025 Q3 |
| Nuveen | 297.5k | 0.98% | $30.6M | added +38.5% | 2019 Q2 |
| Northern Trust | 295.4k | 0.97% | $30.4M | added +2.2% | 2016 Q3 |
| Point72 | 289.1k | 0.95% | $29.7M | opened | 2026 Q1 |
| Goldman Sachs | 274.7k | 0.91% | $28.2M | trimmed -4.1% | 2016 Q3 |
| Morgan Stanley | 271.5k | 0.90% | $27.9M | unchanged | 2016 Q3 |
| Charles Schwab Investment Management | 262.7k | 0.87% | $27.0M | trimmed -1.2% | 2016 Q4 |
| William Blair Investment Management, LLC | 256.2k | 0.85% | $26.3M | added +20.9% | 2025 Q3 |
| Fred Alger Management, LLC | 215.0k | 0.71% | $22.1M | added +325% | 2017 Q2 |
| BNP Paribas Financial Markets | 208.3k | 0.69% | $21.4M | trimmed -24.9% | 2016 Q4 |
| AWM Investment Company, INC. | 207.0k | 0.68% | $21.3M | added +16.2% | 2016 Q3 |
| Fiera Capital CORP | 203.1k | 0.67% | $20.9M | opened | 2026 Q1 |
| Royce & Associates | 199.0k | 0.66% | $20.5M | added +18.5% | 2020 Q1 |
| Allspring Global Investments Holdings, LLC | 182.0k | 0.60% | $18.7M | added +7% | 2021 Q4 |
| Emerald Advisers, LLC | 181.6k | 0.60% | $18.7M | added +14.4% | 2023 Q2 |
| Rockefeller Capital Management L.p. | 177.8k | 0.59% | $18.3M | added +94% | 2024 Q4 |
| Baillie Gifford | 174.1k | 0.57% | $17.9M | added +69.5% | 2025 Q4 |
| Voya Investment Management LLC | 171.2k | 0.56% | $17.6M | added +1520.9% | 2020 Q4 |
| Aberdeen Group plc | 155.7k | 0.51% | $16.0M | added +127.7% | 2024 Q4 |
| Raymond James Financial INC | 145.1k | 0.48% | $14.9M | added +37% | 2020 Q2 |
| BNY Mellon | 143.8k | 0.47% | $14.8M | trimmed -0.7% | 2016 Q3 |
| Polar Asset Management Partners INC. | 136.7k | 0.45% | $14.0M | added +25.6% | 2025 Q2 |
| Principal Financial Group INC | 131.6k | 0.43% | $13.5M | added +2.7% | 2021 Q1 |
| Oberweis Asset Management INC/ | 118.1k | 0.39% | $12.1M | added +10.2% | 2025 Q3 |
| Emerald Mutual Fund Advisers Trust | 111.3k | 0.37% | $11.4M | added +11.9% | 2023 Q2 |
| Jennison Associates LLC | 108.9k | 0.36% | $11.2M | trimmed -55.1% | 2024 Q1 |
| Bank OF America CORP /DE/ | 108.1k | 0.36% | $11.1M | added +94.5% | 2016 Q3 |
| Susquehanna International Group | 107.5k | 0.35% | $11.1M | added +283.1% | 2016 Q4 |
| Wellington Management | 105.4k | 0.35% | $10.8M | added +12.9% | 2024 Q3 |
| Millennium Management | 102.3k | 0.34% | $10.5M | added +7326.9% | 2020 Q4 |
| AllianceBernstein | 96.9k | 0.32% | $10.0M | unchanged | 2017 Q1 |
| Public Sector Pension Investment Board | 96.5k | 0.32% | $9.9M | added +4.1% | 2024 Q3 |
| Deutsche Bank AG\ | 96.2k | 0.32% | $9.9M | added +4.6% | 2016 Q3 |
| Tidal Investments LLC | 95.2k | 0.31% | $9.8M | added +15.9% | 2024 Q4 |
Largest 50 of 276 shown; the full ranked, searchable register is at boothcheck.com/holders/PI. 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.