American Municipal Income Portfolio Inc., Minneapolis, said its board of directors has approved a proposal to merge the fund into Nuveen Investment Quality Municipal Fund, a closed-end fund managed by Nuveen Fund Advisors and sub-advised by Nuveen Asset Management. The proposal will be submitted to shareholders of the fund for a vote at a special meeting of shareholders.


St. Jude Medical Inc., Little Canada, declared a second-quarter dividend of 27 cents per share, payable July 31 to shareholders of record on June 30.

Apogee Enterprises Inc., Bloomington, declared a quarterly dividend of 10 cents per share, payable May 30 to shareholders of record on May 20.

Winmark Corp., Minneapolis, approved an increase in its regular quarterly dividend to 6 cents per share from 5 cents, payable June 2 to shareholders of record on May 14.