X0305 4 2012-04-20 0 0001156295 SERACARE LIFE SCIENCES INC SRLS 0001252546 HRUSOVSKY E KEVIN C/O SERACARE LIFE SCIENCES, INC. 37 BIRCH STREET MILFORD MA 01757 1 0 0 0 Common Stock 2012-04-20 4 D 0 2739 D 0 D Stock Option (Right to Buy) 2.73 2012-04-20 4 D 0 3750 D 2016-11-16 Common Stock 3750 0 D Stock Option (Right to Buy) 2.73 2012-04-20 4 D 0 11250 D 2016-11-16 Common Stock 11250 0 D Stock Option (Right to Buy) 3.86 2012-04-20 4 D 0 7890 D 2015-11-17 Common Stock 7890 0 D Pursuant to the Agreement and Plan of Merger dated as of February 12, 2012, as amended by Amendment No. 1 to Agreement and Plan of Merger dated as of February 27, 2012, among SeraCare Life Sciences, Inc., Project Plasma Holdings Corporation and Project Plasma Merger Corp. (the "Merger Agreement"), each share of SeraCare Life Sciences, Inc.'s common stock was exchanged for $4.00 in cash, without interest and less any applicable withholding taxes. Pursuant to its terms, the stock option accelerated and became fully vested as of the closing of the merger. This stock option is fully vested. Pursuant to the Merger Agreement, each stock option was cancelled in the merger in exchange for the right to receive an amount in cash, without interest, equal to the product of the number of shares issuable upon the exercise of such stock option and $4.00 minus the exercise price of such stock option, less any applicable withholding taxes. /s/ Gregory A. Gould, Attorney-in-fact 2012-04-20