Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
246 institutional managers reported holding BZ for the quarter ended Mar 31, 2026. Together they hold about 33% of shares outstanding; the top 10 hold 15%. 34 opened new positions; 45 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Schroder Investment Management Group | 26.61M | 2.87% | $355.8M | added +8.9% | 2022 Q2 |
| BlackRock | 20.31M | 2.19% | $271.5M | added +8.5% | 2021 Q2 |
| Krane Funds Advisors LLC | 14.23M | 1.53% | $190.2M | trimmed -11.4% | 2021 Q4 |
| Vanguard Group | 13.50M | 1.46% | $180.5M | added +1.1% | 2021 Q4 |
| Morgan Stanley | 11.58M | 1.25% | $154.9M | added +18.2% | 2021 Q2 |
| CoreView Capital Management LTD (focused) | 10.48M | 1.13% | $140.1M | added +10.9% | 2022 Q4 |
| Acadian Asset Management | 10.11M | 1.09% | $135.2M | trimmed -19% | 2023 Q1 |
| Baillie Gifford | 9.95M | 1.07% | $133.0M | unchanged | 2025 Q1 |
| Robeco Institutional Asset Management B.v. | 9.57M | 1.03% | $127.9M | added +71.1% | 2023 Q1 |
| T. Rowe Price | 9.30M | 1.00% | $124.4M | trimmed -1.2% | 2021 Q2 |
| Capital Research Global Investors | 8.29M | 0.90% | $110.9M | opened | 2026 Q1 |
| State Street | 7.03M | 0.76% | $94.0M | unchanged | 2021 Q4 |
| Goldman Sachs | 6.56M | 0.71% | $87.8M | added +72.2% | 2021 Q3 |
| Thornburg Investment Management INC | 6.23M | 0.67% | $83.3M | added +1.9% | 2024 Q1 |
| Bank OF America CORP /DE/ | 6.08M | 0.66% | $81.3M | added +38.5% | 2021 Q2 |
| Renaissance Technologies | 5.70M | 0.61% | $76.2M | added +43.3% | 2021 Q4 |
| Artisan Partners | 5.31M | 0.57% | $71.0M | added +16.5% | 2022 Q2 |
| Brilliance Asset Management LTD (focused) | 4.98M | 0.54% | $66.6M | opened | 2026 Q1 |
| Jupiter Asset Management LTD | 4.94M | 0.53% | $66.1M | added +55.1% | 2024 Q4 |
| Temasek Holdings | 4.35M | 0.47% | $58.1M | added +21.4% | 2024 Q4 |
| Perseverance Asset Management International (focused) | 4.29M | 0.46% | $57.3M | added +1603.8% | 2022 Q2 |
| Assenagon Asset Management S.a. | 4.16M | 0.45% | $55.7M | added +35.3% | 2022 Q2 |
| Two Sigma | 3.81M | 0.41% | $50.9M | opened | 2026 Q1 |
| Capital International Investors | 3.44M | 0.37% | $46.0M | trimmed -65% | 2025 Q1 |
| Deutsche Bank AG\ | 3.34M | 0.36% | $44.7M | added +46% | 2021 Q4 |
| Citadel Advisors | 3.10M | 0.33% | $41.4M | added +1243.9% | 2021 Q2 |
| Allspring Global Investments Holdings, LLC | 2.99M | 0.32% | $40.0M | added +32.9% | 2024 Q2 |
| Invesco | 2.93M | 0.32% | $39.2M | trimmed -16% | 2021 Q4 |
| Sumitomo Mitsui Trust Group, INC. | 2.93M | 0.32% | $39.2M | trimmed -6.4% | 2021 Q4 |
| RWC Asset Advisors (US) LLC (focused) | 2.91M | 0.31% | $38.9M | added +92.6% | 2025 Q3 |
| Man Group | 2.89M | 0.31% | $38.7M | added +74.9% | 2023 Q4 |
| UBS | 2.80M | 0.30% | $37.5M | added +121.6% | 2021 Q2 |
| Geode Capital | 2.68M | 0.29% | $35.8M | trimmed -1.4% | 2021 Q2 |
| Qube Research & Technologies LTD | 2.55M | 0.28% | $34.1M | added +382.7% | 2025 Q4 |
| MFS Investment Management | 2.51M | 0.27% | $33.6M | added +129.8% | 2025 Q3 |
| Citigroup INC | 2.40M | 0.26% | $32.1M | trimmed -28% | 2021 Q2 |
| Notable Capital Management, L.l.c. (focused) | 2.35M | 0.25% | $31.5M | unchanged | 2025 Q1 |
| Voloridge Investment Management | 2.35M | 0.25% | $31.4M | added +579.5% | 2023 Q1 |
| Jane Street | 2.21M | 0.24% | $29.5M | added +488.1% | 2021 Q2 |
| FIL LTD | 2.11M | 0.23% | $28.2M | added +24.9% | 2023 Q4 |
| Legal & General Group PLC | 2.10M | 0.23% | $28.0M | added +4.3% | 2021 Q2 |
| Northern Trust | 2.08M | 0.22% | $27.7M | added +3.7% | 2021 Q4 |
| Lazard Asset Management LLC | 2.00M | 0.22% | $26.8M | added +45.8% | 2023 Q1 |
| Healthcare OF Ontario Pension Plan Trust Fund | 1.95M | 0.21% | $26.1M | trimmed -36.5% | 2021 Q3 |
| BNP Paribas Financial Markets | 1.90M | 0.20% | $25.5M | added +1.5% | 2023 Q2 |
| HSG Holding LTD (focused) | 1.90M | 0.20% | $25.4M | unchanged | 2021 Q2 |
| Mackenzie Financial CORP | 1.88M | 0.20% | $25.2M | added +67% | 2025 Q1 |
| Mitsubishi UFJ Asset Management CO., LTD. | 1.81M | 0.20% | $24.2M | unchanged | 2021 Q4 |
| SEI Investments CO | 1.80M | 0.19% | $24.0M | added +0.6% | 2021 Q2 |
| E Fund Management CO., LTD. | 1.74M | 0.19% | $23.3M | opened | 2026 Q1 |
Largest 50 of 246 shown; the full ranked, searchable register is at boothcheck.com/holders/BZ. 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.