The Global Semiconductor Alliance (GSA) has said that for the 12 months ending December 31, 2011, 109 semiconductor M&A (mergers and acquisition) deals were announced, a 2.7% decrease YoY (Year-on-Year).

During the same period, 83 semiconductor deals raised $1032.9 million, a dollar amount decrease of 15.8% YoY.

Again, during the same period, 11 semiconductor companies list on a stock exchange, a decrease of seven YoY.

Other findins include that:

• In December 2011, four semiconductor companies (i.e., fabless companies, integrated device manufacturers (IDMs) and semiconductor suppliers) raised $44.7 million, an increase of 101.4% from November 2011. However, it also said that while all companies disclosed amounts in December, three companies did not disclose funding amounts in November 2011, which may affect results.

• In Q4 2011, 15 semiconductor companies raised $89.1 million, a dollar amount decrease of 66.8% from Q3 2011 and 55.0% from Q4 2010. (Note: Four companies did not disclose funding amounts in Q4 2011 as compared to one in Q3 2011 and four in Q4 2010, which may affect results.)

• The fourth quarter ended with no filings or pricings in December. 

• 2011 saw a total of 11 semiconductor companies list on a stock exchange, a decrease of seven YoY.

• In December 2011, the number of semiconductor mergers and acquisitions (M&As) announced (i.e., M&As involving entire fabless, IDM and semiconductor supplier companies, not sectors/product lines or foundry facilities) increased by six MoM and five YoY.

• In Q4 2011, 23 semiconductor M&A deals were announced, a decrease of two QoQ and five YoY.