Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
89 institutional managers reported holding PLSE for the quarter ended Mar 31, 2026. Together they hold about 11% of shares outstanding; the top 10 hold 9%. 26 opened new positions; 17 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 1.34M | 1.97% | $28.9M | trimmed -1.3% | 2016 Q2 |
| Vanguard Group | 1.14M | 1.67% | $24.5M | added +1.7% | 2016 Q4 |
| Bank OF America CORP /DE/ | 866.1k | 1.27% | $18.7M | added +8.2% | 2016 Q3 |
| Portolan Capital Management, LLC | 733.4k | 1.08% | $15.8M | added +86.4% | 2025 Q3 |
| Geode Capital | 491.9k | 0.72% | $10.6M | added +5.9% | 2016 Q3 |
| MFS Investment Management | 462.9k | 0.68% | $10.0M | opened | 2026 Q1 |
| State Street | 456.9k | 0.67% | $9.8M | added +2.2% | 2017 Q2 |
| Balyasny Asset Management | 265.2k | 0.39% | $5.7M | opened | 2026 Q1 |
| Griffin Asset Management, INC. | 225.2k | 0.33% | $4.9M | trimmed -0.5% | 2019 Q1 |
| LMR Partners LLP | 213.1k | 0.31% | $4.6M | opened | 2026 Q1 |
| Northern Trust | 187.3k | 0.28% | $4.0M | added +1.6% | 2017 Q1 |
| Charles Schwab Investment Management | 147.8k | 0.22% | $3.2M | trimmed -3.1% | 2023 Q2 |
| Citadel Advisors | 142.2k | 0.21% | $3.1M | added +242.3% | 2022 Q2 |
| Wellington Management | 81.3k | 0.12% | $1.8M | opened | 2026 Q1 |
| Westside Investment Management, INC. | 70.5k | 0.10% | $1.5M | added +6.3% | 2020 Q1 |
| UBS | 65.8k | 0.10% | $1.4M | trimmed -38.3% | 2023 Q2 |
| Panoramic Capital, LLC (focused) | 58.1k | 0.09% | $1.3M | added +52.6% | 2024 Q4 |
| Millennium Management | 55.8k | 0.08% | $1.2M | opened | 2026 Q1 |
| Parkman Healthcare Partners LLC | 50.1k | 0.07% | $1.1M | opened | 2026 Q1 |
| Nuveen | 45.4k | 0.07% | $979k | trimmed -5.7% | 2023 Q2 |
| Morgan Stanley | 43.2k | 0.06% | $930k | added +1.8% | 2017 Q1 |
| Swiss National Bank | 39.1k | 0.06% | $843k | unchanged | 2024 Q3 |
| BNY Mellon | 38.5k | 0.06% | $829k | unchanged | 2023 Q2 |
| Formula Growth LTD | 30.0k | 0.04% | $647k | opened | 2026 Q1 |
| Goldman Sachs | 28.7k | 0.04% | $619k | added +27.9% | 2024 Q1 |
| Argo Wealth Advisory, LLC (focused) | 28.2k | 0.04% | $607k | unchanged | 2025 Q4 |
| Tiaa Wealth Investment Management LLC | 27.3k | 0.04% | $588k | unchanged | 2023 Q3 |
| Deutsche Bank AG\ | 24.6k | 0.04% | $531k | added +14.5% | 2023 Q4 |
| Inspire Investing, LLC | 24.3k | 0.04% | $523k | trimmed -29% | 2023 Q4 |
| XTX Topco LTD | 23.8k | 0.04% | $514k | opened | 2026 Q1 |
| Allstate CORP | 23.5k | 0.04% | $506k | opened | 2026 Q1 |
| Rhumbline Advisers | 22.9k | 0.03% | $494k | trimmed -0.9% | 2023 Q2 |
| WealthTrust Axiom LLC | 21.5k | 0.03% | $463k | unchanged | 2022 Q4 |
| California State Teachers Retirement System | 21.0k | 0.03% | $453k | trimmed -0.6% | 2023 Q2 |
| Diker Management LLC (focused) | 19.0k | 0.03% | $409k | opened | 2026 Q1 |
| Cetera Investment Advisers | 17.9k | 0.03% | $386k | opened | 2026 Q1 |
| Creative Planning | 16.4k | 0.02% | $354k | trimmed -4.8% | 2024 Q2 |
| T. Rowe Price | 14.9k | 0.02% | $320k | added +32.3% | 2025 Q2 |
| FMR (Fidelity) | 14.2k | 0.02% | $305k | unchanged | 2023 Q2 |
| Legal & General Group PLC | 14.0k | 0.02% | $302k | trimmed -10.4% | 2023 Q2 |
| D. E. Shaw | 13.7k | 0.02% | $296k | opened | 2026 Q1 |
| Susquehanna International Group | 13.4k | 0.02% | $289k | opened | 2024 Q4 |
| AllianceBernstein | 12.9k | 0.02% | $278k | trimmed -37.4% | 2024 Q2 |
| Bender Robert & Associates (focused) | 12.2k | 0.02% | $263k | opened | 2024 Q4 |
| Brevan Howard Capital Management LP | 12.2k | 0.02% | $262k | opened | 2026 Q1 |
| Farther Finance Advisors, LLC | 12.2k | 0.02% | $262k | trimmed -40.3% | 2024 Q1 |
| Brooklyn Investment Group | 10.5k | 0.01% | $226k | trimmed -92% | 2025 Q1 |
| LPL Financial LLC | 9.9k | 0.01% | $212k | opened | 2025 Q3 |
| MetLife Investment Management, LLC | 9.8k | 0.01% | $211k | trimmed -3% | 2023 Q4 |
| Wells Fargo & COMPANY/MN | 9.2k | 0.01% | $198k | trimmed -58.5% | 2017 Q1 |
Largest 50 of 89 shown; the full ranked, searchable register is at boothcheck.com/holders/PLSE. 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.