Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
409 institutional managers reported holding BCPC for the quarter ended Mar 31, 2026. Together they hold about 87% of shares outstanding; the top 10 hold 51%. 50 opened new positions; 46 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.84M | 15.00% | $823.5M | trimmed -1.4% | ≤2013 |
| Vanguard Group | 3.91M | 12.10% | $664.4M | added +0.7% | ≤2013 |
| Wasatch Advisors LP | 1.42M | 4.41% | $242.1M | added +20.5% | ≤2013 |
| Conestoga Capital Advisors, LLC | 1.25M | 3.88% | $212.8M | added +3.9% | ≤2013 |
| State Street | 1.24M | 3.84% | $211.0M | added +2.5% | ≤2013 |
| Geode Capital | 1.05M | 3.24% | $178.1M | added +4.1% | ≤2013 |
| Morgan Stanley | 857.4k | 2.66% | $145.8M | trimmed -7.4% | ≤2013 |
| Geneva Capital Management LLC | 846.5k | 2.62% | $144.0M | trimmed -6.8% | 2020 Q1 |
| FMR (Fidelity) | 598.7k | 1.85% | $101.8M | added +11.8% | 2018 Q3 |
| Dimensional Fund Advisors | 596.7k | 1.85% | $101.5M | unchanged | ≤2013 |
| First Trust Advisors LP | 453.3k | 1.40% | $77.1M | added +66.3% | 2018 Q1 |
| Congress Asset Management CO | 445.8k | 1.38% | $75.8M | added +17.7% | 2016 Q3 |
| Two Sigma | 430.2k | 1.33% | $73.2M | added +112.2% | 2023 Q4 |
| Nuveen | 393.5k | 1.22% | $66.9M | trimmed -0.7% | 2019 Q2 |
| Northern Trust | 374.0k | 1.16% | $63.6M | added +2.4% | ≤2013 |
| Charles Schwab Investment Management | 369.5k | 1.14% | $62.8M | added +1.2% | ≤2013 |
| Schroder Investment Management Group | 360.5k | 1.12% | $61.3M | trimmed -11.5% | 2018 Q4 |
| William Blair Investment Management, LLC | 315.3k | 0.98% | $53.6M | added +5.4% | 2023 Q2 |
| Stephens Investment Management Group LLC | 266.1k | 0.82% | $45.3M | trimmed -0.5% | ≤2013 |
| Clearbridge Investments, LLC | 256.8k | 0.80% | $43.7M | trimmed -7.8% | 2014 Q3 |
| BNY Mellon | 221.5k | 0.69% | $37.7M | trimmed -1.4% | ≤2013 |
| Grantham, Mayo, Van Otterloo & CO. LLC | 212.7k | 0.66% | $36.2M | added +1.4% | 2022 Q3 |
| Gw&k Investment Management, LLC | 210.7k | 0.65% | $35.8M | trimmed -2% | ≤2013 |
| T. Rowe Price | 208.4k | 0.65% | $35.4M | added +20.2% | 2013 Q3 |
| Blair William & CO/IL | 203.5k | 0.63% | $34.6M | added +408.2% | 2025 Q1 |
| Algert Global LLC | 187.6k | 0.58% | $31.9M | trimmed -13.3% | 2023 Q4 |
| Bank OF America CORP /DE/ | 183.9k | 0.57% | $31.3M | added +7.9% | ≤2013 |
| Principal Financial Group INC | 180.6k | 0.56% | $30.7M | added +2.5% | ≤2013 |
| Renaissance Technologies | 177.0k | 0.55% | $30.1M | added +16.4% | 2017 Q2 |
| Fifth Third Bancorp | 174.8k | 0.54% | $29.7M | added +8374.1% | ≤2013 |
| SEI Investments CO | 172.5k | 0.53% | $29.3M | added +31.1% | 2015 Q3 |
| Goldman Sachs | 168.4k | 0.52% | $28.6M | trimmed -19.6% | ≤2013 |
| UBS | 167.7k | 0.52% | $28.5M | added +40.4% | ≤2013 |
| Assenagon Asset Management S.a. | 166.4k | 0.52% | $28.3M | added +70.5% | 2020 Q2 |
| Royal Bank OF Canada | 162.3k | 0.50% | $27.6M | trimmed -9.8% | ≤2013 |
| Qube Research & Technologies LTD | 135.5k | 0.42% | $23.1M | trimmed -22.7% | 2022 Q1 |
| Empower Advisory Group, LLC | 129.2k | 0.40% | $22.0M | added +4.2% | 2023 Q1 |
| Tributary Capital Management, LLC | 117.7k | 0.36% | $20.0M | trimmed -2.7% | 2015 Q2 |
| Millennium Management | 117.3k | 0.36% | $20.0M | added +40.6% | 2016 Q4 |
| Public Sector Pension Investment Board | 115.9k | 0.36% | $19.7M | added +3.4% | ≤2013 |
| Harvey Partners, LLC (focused) | 114.8k | 0.36% | $19.5M | trimmed -1% | 2025 Q4 |
| Ameriprise Financial INC | 111.5k | 0.34% | $19.0M | trimmed -19% | ≤2013 |
| Invesco | 109.8k | 0.34% | $18.7M | added +0.9% | ≤2013 |
| Envestnet Asset Management INC | 107.0k | 0.33% | $18.2M | added +41.1% | ≤2013 |
| Montanaro Asset Management LTD (focused) | 98.7k | 0.31% | $16.8M | trimmed -2.6% | 2022 Q2 |
| Jane Street | 98.2k | 0.30% | $16.7M | added +61.8% | 2022 Q1 |
| Point72 | 92.6k | 0.29% | $15.8M | added +43.6% | 2024 Q3 |
| Rhumbline Advisers | 89.0k | 0.28% | $15.1M | added +1.9% | ≤2013 |
| Congruence Capital, LLC (focused) | 87.7k | 0.27% | $14.9M | trimmed -20.7% | 2025 Q4 |
| CalPERS | 86.5k | 0.27% | $14.7M | trimmed -3.4% | ≤2013 |
Largest 50 of 409 shown; the full ranked, searchable register is at boothcheck.com/holders/BCPC. 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.