October 30, 2016 - 6% reduction:
http://investors.netapp.com/secfiling.cfm?filingID=1193125-16-758809
February 17, 2016 - 12% reduction:
http://investors.netapp.com/secfiling.cfm?filingID=1102624-16-2144
May 20, 2015 - 500 employees reduction:
http://investors.netapp.com/secfiling.cfm?filingID=1102624-15-862
March 12, 2014 - 600 employees reduction:
http://investors.netapp.com/secfiling.cfm?filingID=1193125-14-95620
May 21, 2013 - 900 employees reduction:
http://investors.netapp.com/secfiling.cfm?filingID=1102624-13-648