W. R. BERKLEY CO 5.7 PFD DUE 03/30/58SUBJ TO XTRO REDEMPTION

Review SEC Form 13F institutional ownership, reported holding value and quarterly holder changes for W. R. BERKLEY CO 5.7 PFD DUE 03/30/58SUBJ TO XTRO REDEMPTION PREFERRED DEBT, CUSIP 084423706.