現在 16 社の機関がBSBKを保有しており、以下は保有時価総額の高い順です。
| 主要保有機関 | 申告総額 | 平均比率 |
|---|---|---|
| M3F, Inc. | $419.7万 | 1.04% |
| VANGUARD CAPITAL MANAGEMENT LLC | $146.1万 | 0.00% |
| GEODE CAPITAL MANAGEMENT, LLC | $42.9万 | 0.00% |
| FMR LLC | $39.4万 | 0.00% |
| RENAISSANCE TECHNOLOGIES LLC | $26.6万 | 0.00% |
| BANK OF AMERICA CORP /DE/ | $26.2万 | 0.00% |
| NORTHERN TRUST CORP | $20.9万 | 0.00% |
| VANGUARD FIDUCIARY TRUST CO | $19.4万 | 0.00% |
| BEESE FULMER INVESTMENT MANAGEMENT, INC. | $13.0万 | 0.01% |
| Cetera Investment Advisers | $12.8万 | 0.00% |
| BlackRock, Inc. | $10.3万 | 0.00% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $2.7万 | 0.00% |
| UBS Group AG | $2.3万 | 0.00% |
| Vanguard Global Advisers, LLC | $2.0万 | 0.00% |
| Tower Research Capital LLC (TRC) | $2354.0 | 0.00% |
| CITIGROUP INC | $9.0 | 0.00% |