| SC 13G/A | 2014-01-15 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 4,374,960 | 19.8% | EDGAR |
| SC 13G/A | 2013-01-29 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 5,131,313 | 22.4% | EDGAR |
| SC 13G/A | 2012-11-09 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 4,741,948 | 20.7% | EDGAR |
| SC 13G/A | 2012-02-13 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 13,885,362 | 15.1% | EDGAR |
| SC 13G/A | 2011-01-18 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 9,777,101 | 10.6% | EDGAR |
| SC 13G | 2010-11-09 | FIRST TRUST PORTFOLIOS LP | ZWEIG FUND INC /MD/ | 9,467,245 | 10.3% | EDGAR |
| SC 13D | 2005-04-20 | OPPORTUNITY PARTNERS L P | ZWEIG FUND INC /MD/ | - | 6.0% | EDGAR |