X0303 4 2010-12-03 0 0000813621 AMCOL INTERNATIONAL CORP ACO 0001189751 PROOPS JAY D C/O AMCOL INTERNATIONAL 2870 FORBS AVENUE HOFFMAN ESTATES IL 60192 1 0 0 0 Common Stock 10000 I Proops Family Ltd. Partnership Common Stock 2010-12-03 4 S 0 5000 29.50 D 41608 D Option (Right to Buy) 3.875 2002-07-17 2010-07-17 Common Stock 2000 2000 D Option (Right to Buy) 5.00 2003-05-17 2011-05-17 Common Stock 2000 2000 D Option (Right to Buy) 6.65 2004-02-04 2012-02-04 Common Stock 2000 2000 D Option (Right to Buy) 20.90 2006-02-10 2011-02-10 Common Stock 3000 3000 D Option (Right to Buy) 26.02 2007-02-07 2012-02-07 Common Stock 3000 3000 D Option (Right to Buy) 29.95 2008-02-13 2013-02-13 Common Stock 4000 4000 D Option (Right to Buy) 24.25 2009-02-11 2014-02-11 Common Stock 4000 4000 D Option (Right to Buy) 15.11 2010-02-09 2019-02-09 Common Stock 4000 4000 D Option (Right to Buy) 23.24 2011-02-08 2020-02-08 Common Stock 4000 4000 D Gary L. Castagna 2010-12-07