Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
427 institutional managers reported holding BSY for the quarter ended Mar 31, 2026. Together they hold about 47% of shares outstanding; the top 10 hold 25%. 71 opened new positions; 122 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 16.81M | 5.22% | $590.0M | trimmed -19.5% | 2020 Q3 |
| Vanguard Group | 16.77M | 5.21% | $589.0M | added +1.9% | 2020 Q3 |
| Swedbank Robur | 9.00M | 2.80% | $316.0M | added +4.8% | 2021 Q4 |
| T. Rowe Price Investment Management, INC. | 7.99M | 2.48% | $280.5M | added +917% | 2025 Q2 |
| Kayne Anderson Rudnick Investment Management LLC | 7.06M | 2.19% | $247.9M | trimmed -45.1% | 2020 Q3 |
| Morgan Stanley | 6.09M | 1.89% | $213.8M | added +11.3% | 2020 Q3 |
| State Street | 4.92M | 1.53% | $172.6M | trimmed -15.1% | 2021 Q2 |
| Arrowstreet Capital | 4.78M | 1.49% | $167.9M | added +253.6% | 2024 Q4 |
| Pictet Asset Management Holding SA | 4.66M | 1.45% | $163.7M | added +150.9% | 2020 Q3 |
| Geode Capital | 3.59M | 1.11% | $125.9M | added +3.4% | 2020 Q3 |
| William Blair Investment Management, LLC | 3.32M | 1.03% | $116.7M | added +27.1% | 2025 Q3 |
| Goldman Sachs | 3.11M | 0.97% | $109.2M | added +222.5% | 2020 Q3 |
| UBS | 2.89M | 0.90% | $101.5M | added +35.9% | 2020 Q4 |
| BNY Mellon | 2.82M | 0.88% | $98.9M | trimmed -11.6% | 2021 Q2 |
| Bessemer Group INC | 2.60M | 0.81% | $91.3M | added +36.2% | 2021 Q3 |
| Allianz Asset Management GmbH | 1.81M | 0.56% | $63.7M | opened | 2026 Q1 |
| Impax Asset Management Group plc | 1.68M | 0.52% | $58.9M | trimmed -23% | 2024 Q3 |
| Northern Trust | 1.54M | 0.48% | $54.0M | trimmed -21.7% | 2020 Q4 |
| BNP Paribas Financial Markets | 1.49M | 0.46% | $52.2M | trimmed -1.1% | 2022 Q3 |
| Woodline Partners LP | 1.46M | 0.45% | $51.3M | added +5821.4% | 2025 Q3 |
| Dimensional Fund Advisors | 1.33M | 0.41% | $46.6M | added +12.2% | 2021 Q3 |
| Manning & Napier Advisors LLC | 1.28M | 0.40% | $44.9M | trimmed -41.1% | 2025 Q3 |
| Millennium Management | 1.27M | 0.40% | $44.7M | added +66.4% | 2020 Q3 |
| Mirova US LLC | 1.26M | 0.39% | $44.2M | added +335.9% | 2022 Q3 |
| Invesco | 1.26M | 0.39% | $44.1M | trimmed -8% | 2021 Q2 |
| Wells Fargo & COMPANY/MN | 1.20M | 0.37% | $42.2M | trimmed -38.8% | 2020 Q3 |
| Nomura Asset Management International INC. | 1.14M | 0.35% | $40.0M | added +1.8% | 2021 Q1 |
| Squarepoint Ops LLC | 1.08M | 0.34% | $37.9M | added +102% | 2023 Q4 |
| Two Sigma | 1.07M | 0.33% | $37.6M | added +915.6% | 2022 Q3 |
| Charles Schwab Investment Management | 997.9k | 0.31% | $35.0M | added +6.1% | 2021 Q2 |
| Madison Asset Management, LLC | 981.4k | 0.30% | $34.5M | opened | 2026 Q1 |
| TimesSquare Capital Management, LLC | 928.0k | 0.29% | $32.6M | trimmed -2.4% | 2020 Q3 |
| Creative Planning | 882.4k | 0.27% | $31.0M | added +3.9% | 2021 Q2 |
| Envestnet Asset Management INC | 817.7k | 0.25% | $28.7M | trimmed -1% | 2020 Q4 |
| Point72 | 797.6k | 0.25% | $28.0M | added +94.6% | 2025 Q4 |
| Seldon Capital LP | 793.4k | 0.25% | $27.9M | opened | 2026 Q1 |
| Bank OF America CORP /DE/ | 787.6k | 0.24% | $27.7M | trimmed -27.7% | 2020 Q3 |
| Legal & General Group PLC | 716.4k | 0.22% | $25.2M | trimmed -14.6% | 2021 Q2 |
| Royal Bank OF Canada | 691.4k | 0.21% | $24.3M | added +7.3% | 2020 Q3 |
| Copeland Capital Management, LLC | 687.7k | 0.21% | $24.1M | added +36.9% | 2024 Q2 |
| Gotham Asset Management | 672.8k | 0.21% | $23.6M | added +133.6% | 2021 Q4 |
| Jones Financial Companies Lllp | 652.1k | 0.20% | $22.9M | added +374694.3% | 2023 Q3 |
| Citadel Advisors | 646.8k | 0.20% | $22.7M | added +260.1% | 2020 Q3 |
| Raymond James Financial INC | 646.0k | 0.20% | $22.7M | trimmed -41.5% | 2020 Q4 |
| Zurich Insurance Group LTD/FI | 645.6k | 0.20% | $22.7M | opened | 2026 Q1 |
| SEB Asset Management AB | 643.0k | 0.20% | $22.6M | opened | 2026 Q1 |
| Natixis Advisors, LLC | 637.2k | 0.20% | $22.4M | added +1459.2% | 2021 Q2 |
| DekaBank Deutsche Girozentrale | 540.7k | 0.17% | $19.0M | unchanged | 2020 Q3 |
| Renaissance Technologies | 487.1k | 0.15% | $17.1M | added +124.6% | 2024 Q3 |
| Federated Hermes, INC. | 454.0k | 0.14% | $15.9M | trimmed -13.2% | 2025 Q1 |
Largest 50 of 427 shown; the full ranked, searchable register is at boothcheck.com/holders/BSY. 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.