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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview
Overview of all insider trading transactions in AMCOL INTERNATIONAL CORP. Get notifications about new insider transactions in AMCOL INTERNATIONAL CORP for free.
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| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Option Exercise | A | 30.47 | 11,200 | 341,264 | 11,200 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Grant | A | 0.00 | 10,000 | 0 | 43,527 | 33.5 K to 43.5 K (+29.83 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Grant | A | 0.00 | 5,100 | 0 | 33,527 | 28.4 K to 33.5 K (+17.94 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | A | 30.47 | 12,700 | 386,969 | 12,700 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Grant | A | 0.00 | 10,000 | 0 | 63,432 | 53.4 K to 63.4 K (+18.72 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Grant | A | 0.00 | 5,800 | 0 | 53,432 | 47.6 K to 53.4 K (+12.18 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | A | 30.47 | 41,500 | 1,264,505 | 41,500 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Grant | A | 0.00 | 10,000 | 0 | 58,830 | 48.8 K to 58.8 K (+20.48 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Grant | A | 0.00 | 18,800 | 0 | 48,830 | 30 K to 48.8 K (+62.60 %) |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | PALENSKY FRED J | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | GALLAGHER DONALD J | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | SCHUMANN WILLIAM H | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 14 2013 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Option Exercise | A | 30.47 | 5,000 | 152,350 | 5,000 | |
| Feb 13 2013 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | M | 29.95 | 4,000 | 119,800 | 0 | |
| Feb 13 2013 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Sell | S | 30.42 | 4,000 | 121,662 | 26,000 | 30 K to 26 K (-13.33 %) |
| Feb 13 2013 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Buy | M | 29.95 | 4,000 | 119,800 | 30,000 | 26 K to 30 K (+15.38 %) |
| Feb 13 2013 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Sell | S | 30.35 | 5,000 | 151,747 | 15,000 | 20 K to 15 K (-25.00 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Option Exercise | M | 29.95 | 4,000 | 119,800 | 0 | |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Sell | S | 30.44 | 4,000 | 121,752 | 7,796 | 11.8 K to 7.8 K (-33.91 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Buy | M | 29.95 | 4,000 | 119,800 | 11,796 | 7.8 K to 11.8 K (+51.31 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | M | 29.95 | 10,000 | 299,500 | 5,000 | |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Sell | S | 30.50 | 10,000 | 305,000 | 40,966 | 51 K to 41 K (-19.62 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Buy | M | 29.95 | 10,000 | 299,500 | 77,632 | 67.6 K to 77.6 K (+14.79 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Option Exercise | M | 29.95 | 4,000 | 119,800 | 0 | |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Sell | S | 30.40 | 4,000 | 121,600 | 1,554,390 | 1.6 M to 1.6 M (-0.26 %) |
| Feb 12 2013 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Buy | M | 29.95 | 4,000 | 119,800 | 1,558,390 | 1.6 M to 1.6 M (+0.26 %) |
| Feb 08 2013 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 30.34 | 5,000 | 151,698 | 243,890 | 248.9 K to 243.9 K (-2.01 %) |
| Dec 14 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Gift | G | 0.00 | 787,937 | 0 | 1,554,390 | 766.5 K to 1.6 M (+102.80 %) |
| Dec 07 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Gift | G | 0.00 | 168,912 | 0 | 149,726 | 318.6 K to 149.7 K (-53.01 %) |
| Dec 13 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Gift | G | 0.00 | 225,125 | 0 | 374,851 | 149.7 K to 374.9 K (+150.36 %) |
| Dec 07 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Sell | S | 30.00 | 6,000 | 180,011 | 67,632 | 73.6 K to 67.6 K (-8.15 %) |
| Dec 06 2012 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Sell | S | 29.81 | 5,000 | 149,059 | 20,000 | 25 K to 20 K (-20.00 %) |
| Nov 20 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Sell | S | 29.40 | 3,000 | 88,200 | 21,421 | 24.4 K to 21.4 K (-12.28 %) |
| Nov 08 2012 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 31.27 | 4,000 | 125,082 | 248,890 | 252.9 K to 248.9 K (-1.58 %) |
| Nov 05 2012 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Sell | S | 31.37 | 16,295 | 511,174 | 26,000 | 42.3 K to 26 K (-38.53 %) |
| Aug 02 2012 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 30.83 | 4,000 | 123,320 | 252,890 | 256.9 K to 252.9 K (-1.56 %) |
| May 16 2012 | ACO | AMCOL INTERNATIONA ... | PALENSKY FRED J | Director | Buy | P | 30.01 | 5,000 | 150,050 | 5,000 | 0 to 5 K |
| May 15 2012 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Sell | S | 29.79 | 5,000 | 148,950 | 7,796 | 12.8 K to 7.8 K (-39.07 %) |
| May 04 2012 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 31.77 | 4,000 | 127,091 | 256,890 | 260.9 K to 256.9 K (-1.53 %) |
| May 03 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Sell | S | 32.95 | 1,000 | 32,952 | 73,632 | 74.6 K to 73.6 K (-1.34 %) |
| May 03 2012 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Sell | S | 32.41 | 10,000 | 324,105 | 21,608 | 31.6 K to 21.6 K (-31.64 %) |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | ASHLEY JAMES W JR | Secretary | Option Exercise | A | 29.80 | 10,000 | 298,000 | 10,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | Carpenter Patrick | Vice President | Option Exercise | A | 29.80 | 10,000 | 298,000 | 10,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Option Exercise | A | 29.80 | 15,000 | 447,000 | 15,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | A | 29.80 | 15,000 | 447,000 | 15,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Option Exercise | A | 29.80 | 15,000 | 447,000 | 15,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | A | 29.80 | 30,000 | 894,000 | 30,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | PALENSKY FRED J | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 14 2012 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Option Exercise | A | 29.80 | 5,000 | 149,000 | 5,000 | |
| Feb 07 2012 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Option Exercise | M | 5.98 | 5,000 | 29,900 | 0 | |
| Feb 07 2012 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Sell | S | 30.17 | 5,000 | 150,850 | 25,000 | 30 K to 25 K (-16.67 %) |
| Feb 07 2012 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Buy | M | 5.98 | 5,000 | 29,900 | 30,000 | 25 K to 30 K (+20.00 %) |
| Feb 06 2012 | ACO | AMCOL INTERNATIONA ... | Trauger Robert J. | Vice President | Option Exercise | M | 26.02 | 7,000 | 182,140 | 0 | |
| Feb 06 2012 | ACO | AMCOL INTERNATIONA ... | Trauger Robert J. | Vice President | Sell | S | 29.00 | 7,000 | 203,000 | 10,224 | 17.2 K to 10.2 K (-40.64 %) |
| Feb 06 2012 | ACO | AMCOL INTERNATIONA ... | Trauger Robert J. | Vice President | Buy | M | 26.02 | 7,000 | 182,140 | 17,224 | 10.2 K to 17.2 K (+68.47 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 28.93 | 3,000 | 86,797 | 206,890 | 209.9 K to 206.9 K (-1.43 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | M | 6.65 | 2,000 | 13,300 | 0 | |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Buy | M | 26.02 | 3,000 | 78,060 | 303,185 | 300.2 K to 303.2 K (+1.00 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Buy | M | 6.65 | 2,000 | 13,300 | 300,185 | 298.2 K to 300.2 K (+0.67 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Sell | S | 29.02 | 3,000 | 87,060 | 21,461 | 24.5 K to 21.5 K (-12.26 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Buy | M | 26.02 | 3,000 | 78,060 | 24,461 | 21.5 K to 24.5 K (+13.98 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Option Exercise | M | 26.02 | 7,000 | 182,140 | 0 | |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Option Exercise | M | 6.65 | 5,044 | 33,543 | 0 | |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Sell | S | 29.01 | 7,000 | 203,043 | 18,398 | 25.4 K to 18.4 K (-27.56 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Buy | M | 26.02 | 7,000 | 182,140 | 25,398 | 18.4 K to 25.4 K (+38.05 %) |
| Feb 03 2012 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Buy | M | 6.65 | 5,044 | 33,543 | 18,398 | 13.4 K to 18.4 K (+37.77 %) |
| Feb 02 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | M | 26.02 | 10,000 | 260,200 | 0 | |
| Feb 02 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Sell | S | 29.05 | 10,000 | 290,500 | 74,632 | 84.6 K to 74.6 K (-11.82 %) |
| Feb 02 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Buy | M | 26.02 | 10,000 | 260,200 | 84,632 | 74.6 K to 84.6 K (+13.40 %) |
| Jan 24 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | M | 6.65 | 5,000 | 33,250 | 0 | |
| Jan 24 2012 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Buy | M | 6.65 | 5,000 | 33,250 | 74,632 | 69.6 K to 74.6 K (+7.18 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 32.01 | 3,000 | 96,030 | 206,890 | 209.9 K to 206.9 K (-1.43 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Buy | M | 26.02 | 3,000 | 78,060 | 209,890 | 206.9 K to 209.9 K (+1.45 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Sell | S | 32.17 | 3,000 | 96,508 | 25,000 | 28 K to 25 K (-10.71 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Buy | M | 26.02 | 3,000 | 78,060 | 28,000 | 25 K to 28 K (+12.00 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Sell | S | 31.99 | 3,000 | 95,958 | 12,796 | 15.8 K to 12.8 K (-18.99 %) |
| Dec 02 2011 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Buy | M | 26.02 | 3,000 | 78,060 | 15,796 | 12.8 K to 15.8 K (+23.44 %) |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | M | 6.65 | 2,000 | 13,300 | 0 | |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Sell | S | 32.03 | 5,000 | 160,140 | 31,608 | 36.6 K to 31.6 K (-13.66 %) |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Buy | M | 6.65 | 2,000 | 13,300 | 36,608 | 34.6 K to 36.6 K (+5.78 %) |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Sell | S | 29.49 | 3,000 | 88,460 | 34,608 | 37.6 K to 34.6 K (-7.98 %) |
| Dec 01 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Buy | M | 26.02 | 3,000 | 78,060 | 37,608 | 34.6 K to 37.6 K (+8.67 %) |
| Nov 22 2011 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | M | 6.65 | 2,000 | 13,300 | 0 | |
| Nov 22 2011 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Buy | M | 6.65 | 2,000 | 13,300 | 42,295 | 40.3 K to 42.3 K (+4.96 %) |
| Nov 22 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Option Exercise | M | 26.02 | 3,000 | 78,060 | 0 | |
| Nov 22 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Sell | S | 29.00 | 3,000 | 87,000 | 766,453 | 769.5 K to 766.5 K (-0.39 %) |
| Nov 22 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Buy | M | 26.02 | 3,000 | 78,060 | 769,453 | 766.5 K to 769.5 K (+0.39 %) |
| Nov 17 2011 | ACO | AMCOL INTERNATIONA ... | PALENSKY FRED J | Director | Option Exercise | A | 30.92 | 5,000 | 154,600 | 5,000 | |
| Nov 04 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 29.67 | 3,500 | 103,839 | 206,890 | 210.4 K to 206.9 K (-1.66 %) |
| Sep 01 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Sell | S | 29.50 | 800 | 23,600 | 766,453 | 767.3 K to 766.5 K (-0.10 %) |
| Jul 28 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 30.52 | 3,500 | 106,803 | 210,390 | 213.9 K to 210.4 K (-1.64 %) |
| Jun 20 2011 | ACO | AMCOL INTERNATIONA ... | WASHOW LAWRENCE E | Director | Option Exercise | M | 6.65 | 7,452 | 49,556 | 0 | |
| Jun 20 2011 | ACO | AMCOL INTERNATIONA ... | WASHOW LAWRENCE E | Director | Buy | M | 6.65 | 7,452 | 49,556 | 219,440 | 212 K to 219.4 K (+3.52 %) |
| May 23 2011 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Payment of Exercise | F | 35.43 | 1,573 | 55,731 | 3,427 | 5 K to 3.4 K (-31.46 %) |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | M | 23.24 | 10,000 | 232,400 | 20,000 | |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | M | 15.11 | 20,000 | 302,200 | 10,000 | |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | M | 24.25 | 30,000 | 727,500 | 0 | |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | M | 29.95 | 30,000 | 898,500 | 0 | |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | M | 26.02 | 13,333 | 346,925 | 0 | |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Sell | S | 35.00 | 89,955 | 3,148,614 | 30,030 | 120 K to 30 K (-74.97 %) |
| May 20 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Buy | M | 24.27 | 103,333 | 2,507,892 | 0 | -103,333 to 0 (-100.00 %) |
| May 17 2011 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Option Exercise | M | 6.65 | 4,000 | 26,600 | 5,000 | |
| May 17 2011 | ACO | AMCOL INTERNATIONA ... | CASTAGNA GARY L | Vice President | Buy | M | 6.65 | 4,000 | 26,600 | 39,632 | 35.6 K to 39.6 K (+11.23 %) |
| May 06 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | M | 5.00 | 2,000 | 10,000 | 0 | |
| May 06 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Buy | M | 5.00 | 2,000 | 10,000 | 298,185 | 296.2 K to 298.2 K (+0.68 %) |
| May 04 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Sell | S | 37.50 | 2,520 | 94,500 | 767,253 | 769.8 K to 767.3 K (-0.33 %) |
| May 02 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Sell | S | 37.31 | 100,000 | 3,730,980 | 213,890 | 313.9 K to 213.9 K (-31.86 %) |
| Apr 06 2011 | ACO | AMCOL INTERNATIONA ... | Weaver Leslie A | 10% Owner | Sell | S | 37.40 | 4,000 | 149,600 | 739,791 | 743.8 K to 739.8 K (-0.54 %) |
| Mar 25 2011 | ACO | AMCOL INTERNATIONA ... | Weaver Leslie A | 10% Owner | Sell | S | 34.26 | 6,000 | 205,560 | 743,791 | 749.8 K to 743.8 K (-0.80 %) |
| Mar 21 2011 | ACO | AMCOL INTERNATIONA ... | WASHOW LAWRENCE E | Director | Sell | S | 32.00 | 15,000 | 480,000 | 211,988 | 227 K to 212 K (-6.61 %) |
| Mar 10 2011 | ACO | AMCOL INTERNATIONA ... | Johnson Michael R. | Vice President | Sell | S | 32.00 | 7,000 | 224,000 | 3,354 | 10.4 K to 3.4 K (-67.61 %) |
| Mar 10 2011 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | M | 5.00 | 2,000 | 10,000 | 0 | |
| Mar 10 2011 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Buy | M | 5.00 | 2,000 | 10,000 | 40,295 | 38.3 K to 40.3 K (+5.22 %) |
| Mar 07 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | M | 5.00 | 2,000 | 10,000 | 0 | |
| Mar 07 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Sell | S | 31.08 | 2,000 | 62,166 | 38,608 | 40.6 K to 38.6 K (-4.93 %) |
| Mar 07 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Buy | M | 5.00 | 2,000 | 10,000 | 0 | -2,000 to 0 (-100.00 %) |
| Feb 22 2011 | ACO | AMCOL INTERNATIONA ... | Trauger Robert J. | Vice President | Sell | S | 30.33 | 10,000 | 303,335 | 33,180 | 43.2 K to 33.2 K (-23.16 %) |
| Feb 14 2011 | ACO | AMCOL INTERNATIONA ... | WASHOW LAWRENCE E | Director | Sell | S | 30.02 | 38,907 | 1,167,988 | 226,988 | 265.9 K to 227 K (-14.63 %) |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER PAUL C | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | HUGHES JOHN | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | PROOPS JAY D | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | CASEY DANIEL P | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | STAHL DALE E | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | REDMAN CLARENCE O | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | WEAVER AUDREY L | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 11 2011 | ACO | AMCOL INTERNATIONA ... | BROWN ARTHUR | Director | Option Exercise | A | 30.66 | 5,000 | 153,300 | 5,000 | |
| Feb 10 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Option Exercise | A | 30.66 | 30,000 | 919,800 | 30,000 | |
| Feb 10 2011 | ACO | AMCOL INTERNATIONA ... | MCKENDRICK RYAN F | Vice President | Grant | A | 0.00 | 20,000 | 0 | 20,000 | 0 to 20 K |
| Feb 10 2011 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Option Exercise | A | 30.66 | 15,000 | 459,900 | 15,000 | |
| Feb 10 2011 | ACO | AMCOL INTERNATIONA ... | Pearson Donald W | Vice President | Grant | A | 0.00 | 25,000 | 0 | 25,000 | 0 to 25 K |