Former Affymetrix executives offer to buy company By: MarketMinute.com Stock News March 18, 2016 at 19:33 PM EDT A group of former Affymetrix Inc. (Nasdaq: AFFX) executives topped Thermo Fisher Scientific's $1.3 billion offer to acquire the company by offering a premium of approximately $1.5 billion in cash. The stock price soared $1.97 to close at $15.99.