 6 Meridian decreased its holdings in shares of BlackRock Insured Municipal Income Trust NYSE:BYM by 34.9 in the 1st quarter, Holdings Channel reports. The fund owned 17,261 shares of the companys stock after selling 9,264 shares during the period. 6 Meridians holdings in BlackRock Insured Municipal Income Trust were worth 229,000 at the end of ... 