Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
332 institutional managers reported holding PRMB for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 73%. 51 opened new positions; 69 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| One Rock Capital Partners, LLC (focused) | 116.21M | 31.77% | $2.19B | unchanged | 2025 Q4 |
| FMR (Fidelity) | 29.14M | 7.96% | $549.0M | trimmed -19.5% | 2024 Q4 |
| Vanguard Group | 24.02M | 6.57% | $452.6M | added +4.2% | 2024 Q4 |
| Sachem Head Capital Management LP (focused) | 17.09M | 4.67% | $322.1M | opened | 2026 Q1 |
| Samlyn Capital, LLC | 16.63M | 4.55% | $313.3M | added +323% | 2024 Q4 |
| Ameriprise Financial INC | 14.63M | 4.00% | $275.5M | added +11.5% | 2024 Q4 |
| Fuller & Thaler Asset Management, INC. | 14.12M | 3.86% | $266.1M | trimmed -2.3% | 2024 Q4 |
| William Blair Investment Management, LLC | 13.06M | 3.57% | $246.0M | added +3.4% | 2024 Q4 |
| BlackRock | 11.56M | 3.16% | $217.8M | added +3.1% | 2024 Q4 |
| Palestra Capital Management LLC (focused) | 9.05M | 2.47% | $170.5M | added +126.4% | 2025 Q2 |
| Point72 | 8.37M | 2.29% | $157.7M | added +32.2% | 2025 Q1 |
| Allspring Global Investments Holdings, LLC | 7.05M | 1.93% | $132.8M | added +57.9% | 2024 Q4 |
| Bank OF America CORP /DE/ | 6.07M | 1.66% | $114.3M | added +41.7% | 2024 Q4 |
| Pertento Partners LLP (focused) | 5.30M | 1.45% | $99.9M | added +16.9% | 2024 Q4 |
| KBC Group NV | 5.04M | 1.38% | $95.0M | added +49.2% | 2024 Q4 |
| State Street | 4.50M | 1.23% | $84.8M | added +1.7% | 2024 Q4 |
| Geode Capital | 4.30M | 1.18% | $81.1M | added +1.2% | 2024 Q4 |
| Deprince Race & Zollo INC | 3.83M | 1.05% | $72.2M | added +442.2% | 2025 Q4 |
| M.d. Sass, LLC (focused) | 3.38M | 0.93% | $63.7M | unchanged | 2025 Q2 |
| UBS | 2.97M | 0.81% | $56.0M | trimmed -20.2% | 2024 Q4 |
| Morgan Stanley | 2.97M | 0.81% | $56.0M | trimmed -38.8% | 2024 Q4 |
| Rubric Capital Management LP | 2.78M | 0.76% | $52.4M | trimmed -23.3% | 2025 Q4 |
| Park West Asset Management LLC (focused) | 2.71M | 0.74% | $51.1M | added +117.2% | 2025 Q3 |
| Millennium Management | 2.51M | 0.69% | $47.3M | trimmed -38.1% | 2024 Q4 |
| Clearline Capital LP | 2.28M | 0.62% | $43.0M | trimmed -8.5% | 2025 Q3 |
| Bamco INC /NY/ | 2.19M | 0.60% | $41.2M | trimmed -2.9% | 2025 Q1 |
| First Trust Advisors LP | 1.92M | 0.52% | $36.1M | trimmed -21% | 2024 Q4 |
| Gotham Asset Management | 1.90M | 0.52% | $35.8M | added +62.6% | 2024 Q4 |
| Goldman Sachs | 1.81M | 0.49% | $34.0M | trimmed -62.2% | 2024 Q4 |
| Cooper Creek Partners Management LLC | 1.79M | 0.49% | $33.7M | opened | 2026 Q1 |
| Charles Schwab Investment Management | 1.79M | 0.49% | $33.7M | added +19.9% | 2024 Q4 |
| Alyeska Investment Group | 1.62M | 0.44% | $30.6M | trimmed -73.9% | 2024 Q4 |
| Nuveen | 1.58M | 0.43% | $29.8M | added +3.1% | 2024 Q4 |
| Raymond James Financial INC | 1.53M | 0.42% | $28.7M | added +16.8% | 2025 Q1 |
| Palisade Capital Management, LP | 1.44M | 0.40% | $27.2M | trimmed -6.5% | 2024 Q4 |
| Simcoe Capital Management, LLC (focused) | 1.43M | 0.39% | $26.9M | unchanged | 2025 Q3 |
| Discovery Capital Management, LLC / CT | 1.40M | 0.38% | $26.4M | trimmed -19.4% | 2025 Q2 |
| Silvercrest Asset Management Group LLC | 1.38M | 0.38% | $26.0M | added +36.1% | 2025 Q3 |
| Madison Avenue Partners, LP (focused) | 1.32M | 0.36% | $24.9M | opened | 2026 Q1 |
| Clarkston Capital Partners, LLC | 1.32M | 0.36% | $24.8M | trimmed -62.1% | 2025 Q3 |
| Toronto Dominion Bank | 1.30M | 0.36% | $24.5M | opened | 2026 Q1 |
| Northern Trust | 1.24M | 0.34% | $23.3M | added +6.5% | 2024 Q4 |
| Citadel Advisors | 1.21M | 0.33% | $22.8M | added +9.6% | 2024 Q4 |
| Bwcp, LP (focused) | 1.18M | 0.32% | $22.1M | added +17.1% | 2025 Q3 |
| Boston Partners | 1.14M | 0.31% | $21.5M | trimmed -78.6% | 2024 Q4 |
| SEI Investments CO | 1.09M | 0.30% | $20.5M | added +69.1% | 2024 Q4 |
| Legal & General Group PLC | 1.09M | 0.30% | $20.5M | added +13.1% | 2024 Q4 |
| Man Group | 1.01M | 0.28% | $18.9M | trimmed -36.1% | 2024 Q4 |
| Heartland Advisors INC | 875.4k | 0.24% | $16.5M | added +83.5% | 2025 Q3 |
| NEW York State Common Retirement Fund | 862.3k | 0.24% | $16.2M | added +35.2% | 2024 Q4 |
Largest 50 of 332 shown; the full ranked, searchable register is at boothcheck.com/holders/PRMB. 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.