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Insider Trading: Amcol International Corp

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Amcol International Corp in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Amcol International Corp since year 2005. Table 2 shows the detailed insider transactions of Amcol International Corp since 2005. The reporting company's ticker symbol is ACO. The reporting company's CIK number is 813621.

The total value of stock buying since 2005 is $603,096. The total value of stock sales is $49,434,809. The total value of stock exercises is $11,004,370.
1 year stock price chart,   1 day stock price chart
ACO 1 year chart
ACO 1 day chart

Figure 1. Monthly insider transaction values at Amcol International Corp (ACO) in the past 24 months. The trade values of insider stock buys, sales, and option exercises are in logarithmic scale as shown on the right axis labels. The detailed monthly and daily insider transactions are listed in the 2 tables below.

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2012

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2013

  • 02

  • 03

  • 04

  • 05

  • 06

  • $1,164k

    $116k

    $11k

    $1k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Amcol International Corp (ACO) in the past 24 months. See table 2 for insider transaction details.

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2012

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2013

  • 02

  • 03

  • 04

  • 05

  • 06

  • $32.00

    $24.00

    $16.00

    $8.00



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Amcol International Corp (ACO).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2013-06 0 0 10,000 313,390 10,000 242,500
2013-05 0 0 7,500 240,000 7,500 181,875
2013-04 0 0 5,000 151,625 0 0
2013-02 0 0 38,263 1,164,293 22,000 658,900
2012-12 0 0 11,000 329,072 0 0
2012-11 0 0 23,295 724,454 0 0
2012-07 0 0 4,000 123,320 0 0
2012-05 5,000 150,050 20,000 633,093 0 0
2012-02 0 0 25,000 730,748 32,044 578,198
2012-01 0 0 10,000 290,500 15,000 293,450
2011-11 0 0 23,500 727,933 19,000 416,900
2011-08 0 0 800 23,600 0 0
2011-07 0 0 3,500 106,802 0 0
2011-06 0 0 0 0 7,452 49,555
2011-05 0 0 92,475 3,243,104 109,333 2,544,491
2011-04 0 0 104,000 3,880,600 0 0
2011-03 0 0 30,000 971,726 4,000 20,000
2011-02 7,000 146,300 80,310 2,415,433 22,000 459,795
2010-12 0 0 51,547 1,502,700 53,665 1,062,509
2010-11 0 0 38,211 1,090,981 7,294 36,470
2010-10 0 0 23,000 661,733 0 0
2010-08 915 22,991 15,000 450,000 5,000 25,000
2010-07 0 0 23,460 700,236 2,000 7,750
2010-06 0 0 0 0 2,000 7,750
2010-05 0 0 28,000 828,500 5,000 104,500
2010-04 0 0 11,000 328,229 22,548 149,944
2010-03 0 0 5,000 135,000 5,000 104,500
2010-02 6,500 162,225 9,000 226,587 15,000 271,500
2010-01 0 0 5,500 148,709 6,000 108,600
2009-12 0 0 31,900 902,184 52,406 668,130
2009-11 0 0 32,611 929,834 26,000 277,012
2009-10 0 0 29,000 827,904 0 0
2009-08 0 0 10,909 239,299 21,300 221,312
2009-07 0 0 9,000 169,746 6,000 31,050
2009-06 0 0 10,000 233,400 0 0
2009-05 0 0 13,000 283,270 11,478 25,997
2009-04 0 0 20,500 396,415 0 0
2009-03 0 0 0 0 2,295 5,198
2009-02 0 0 19,923 287,374 86,000 405,896
2008-12 0 0 0 0 11,478 25,997
2008-11 0 0 0 0 6,919 10,848
2008-10 1,000 19,578 3,000 71,409 0 0
2008-09 0 0 1,500 54,849 0 0
2008-08 0 0 0 0 7,270 11,399
2008-07 0 0 14,537 463,799 0 0
2008-06 0 0 0 0 20,410 118,071
2008-05 0 0 0 0 34,956 72,923
2008-04 0 0 4,500 131,260 0 0
2008-03 0 0 36,478 1,088,177 36,478 65,197
2008-02 0 0 1,081 25,792 26,255 79,164
2008-01 0 0 4,000 100,008 0 0
2007-12 0 0 4,800 186,240 20,000 80,640
2007-11 0 0 5,765 228,772 0 0
2007-10 0 0 96,235 3,761,954 0 0
2007-09 0 0 20,000 672,137 0 0
2007-08 0 0 55,200 1,697,208 25,200 451,961
2007-07 0 0 7,000 219,030 0 0
2007-06 0 0 25,000 614,100 0 0
2007-05 0 0 6,657 163,259 40,364 169,335
2007-04 2,000 49,200 0 0 16,000 25,088
2007-03 2,000 52,752 101,588 2,789,431 11,478 28,109
2007-02 0 0 59,600 1,760,490 30,000 66,630
2007-01 0 0 0 0 1,587 3,270
2006-12 0 0 10,000 286,400 7,000 29,176
2006-10 0 0 7,200 187,200 0 0
2006-07 0 0 6,500 156,000 4,400 23,760
2006-04 0 0 7,459 223,323 4,400 25,300
2006-03 0 0 67,609 1,775,605 51,644 127,676
2006-02 0 0 77,221 2,051,777 52,401 627,264
2006-01 0 0 33,000 858,520 2,117 3,780
2005-11 0 0 8,000 160,448 0 0
2005-10 0 0 50,000 977,500 0 0
2005-08 0 0 26,871 543,135 0 0
2005-07 0 0 14,629 290,085 0 0
2005-06 0 0 38,000 742,511 0 0
2005-05 0 0 38,300 742,596 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Amcol International Corp (ACO)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2013-06-05 Johnson Michael R. (Vice President) Sale 10,000 31.34 313,390
2013-06-05 Johnson Michael R. (Vice President) Option Exercise 10,000 24.25 242,500
2013-05-17 Castagna Gary L (Vice President) Sale 7,500 32.00 240,000
2013-05-17 Castagna Gary L (Vice President) Option Exercise 7,500 24.25 181,875
2013-04-30 Hughes John (Director) Sale 5,000 30.32 151,625
2013-02-22 Johnson Michael R. (Vice President) Sale 1,201 30.47 36,594
2013-02-22 Pearson Donald W (Vice President) Sale 2,819 30.47 85,894
2013-02-22 Mckendrick Ryan F (Vice President) Sale 2,243 30.47 68,344
2013-02-12 Stahl Dale E (Director) Sale 4,000 30.42 121,664
2013-02-12 Stahl Dale E (Director) Option Exercise 4,000 29.95 119,800
2013-02-11 Casey Daniel P (Director) Sale 5,000 30.35 151,745
2013-02-08 Weaver Audrey L (Director) Sale 4,000 30.40 121,600
2013-02-08 Weaver Audrey L (Director) Option Exercise 4,000 29.95 119,800
2013-02-08 Redman Clarence O (Director) Sale 4,000 30.44 121,752
2013-02-08 Redman Clarence O (Director) Option Exercise 4,000 29.95 119,800
2013-02-08 Castagna Gary L (Vice President) Sale 10,000 30.50 305,000
2013-02-08 Castagna Gary L (Vice President) Option Exercise 10,000 29.95 299,500
2013-02-06 Hughes John (Director) Sale 5,000 30.34 151,700
2012-12-05 Castagna Gary L (Vice President) Sale 6,000 30.00 180,012
2012-12-04 Casey Daniel P (Director) Sale 5,000 29.81 149,060
2012-11-16 Weaver Audrey L (Director) Sale 3,000 29.40 88,200
2012-11-06 Hughes John (Director) Sale 4,000 31.27 125,080
2012-11-01 Stahl Dale E (Director) Sale 16,295 31.37 511,174
2012-07-31 Hughes John (Director) Sale 4,000 30.83 123,320
2012-05-14 Palensky Fred J (Director) Purchase 5,000 30.01 150,050
2012-05-11 Redman Clarence O (Director) Sale 5,000 29.79 148,950
2012-05-02 Hughes John (Director) Sale 4,000 31.77 127,092
2012-05-01 Proops Jay D (Director) Sale 10,000 32.41 324,099
2012-05-01 Castagna Gary L (Vice President) Sale 1,000 32.95 32,952
2012-02-06 Casey Daniel P (Director) Sale 5,000 30.17 150,850
2012-02-06 Casey Daniel P (Director) Option Exercise 5,000 5.98 29,900
2012-02-03 Weaver Paul C (Director) Option Exercise 3,000 26.02 78,060
2012-02-02 Trauger Robert J. (Vice President) Sale 7,000 29.00 203,000
2012-02-02 Trauger Robert J. (Vice President) Option Exercise 7,000 26.02 182,140
2012-02-01 Johnson Michael R. (Vice President) Sale 7,000 29.01 203,042
2012-02-01 Johnson Michael R. (Vice President) Option Exercise 12,044 16.34 196,738
2012-02-01 Weaver Paul C (Director) Option Exercise 2,000 6.65 13,300
2012-02-01 Hughes John (Director) Sale 3,000 28.93 86,796
2012-02-01 Brown Arthur (Director) Sale 3,000 29.02 87,060
2012-02-01 Brown Arthur (Director) Option Exercise 3,000 26.02 78,060
2012-01-31 Castagna Gary L (Vice President) Sale 10,000 29.05 290,500
2012-01-31 Castagna Gary L (Vice President) Option Exercise 10,000 26.02 260,200
2012-01-20 Castagna Gary L (Vice President) Option Exercise 5,000 6.65 33,250
2011-11-30 Proops Jay D (Director) Sale 5,000 32.03 160,140
2011-11-30 Proops Jay D (Director) Option Exercise 2,000 6.65 13,300
2011-11-30 Hughes John (Director) Sale 3,000 32.01 96,030
2011-11-30 Hughes John (Director) Option Exercise 3,000 26.02 78,060
2011-11-30 Redman Clarence O (Director) Sale 3,000 31.99 95,958
2011-11-30 Redman Clarence O (Director) Option Exercise 3,000 26.02 78,060
2011-11-30 Casey Daniel P (Director) Sale 3,000 32.17 96,506
2011-11-30 Casey Daniel P (Director) Option Exercise 3,000 26.02 78,060
2011-11-29 Proops Jay D (Director) Sale 3,000 29.49 88,461
2011-11-29 Proops Jay D (Director) Option Exercise 3,000 26.02 78,060
2011-11-18 Weaver Audrey L (Director) Sale 3,000 29.00 87,000
2011-11-18 Weaver Audrey L (Director) Option Exercise 3,000 26.02 78,060
2011-11-18 Stahl Dale E (Director) Option Exercise 2,000 6.65 13,300
2011-11-02 Hughes John (Director) Sale 3,500 29.67 103,838
2011-08-30 Weaver Audrey L (Director) Sale 800 29.50 23,600
2011-07-27 Hughes John (Director) Sale 3,500 30.52 106,802
2011-06-17 Washow Lawrence E (Director) Option Exercise 7,452 6.65 49,555
2011-05-18 Mckendrick Ryan F (Vice President) Sale 89,955 35.00 3,148,604
2011-05-18 Mckendrick Ryan F (Vice President) Option Exercise 103,333 24.27 2,507,891
2011-05-13 Castagna Gary L (Vice President) Option Exercise 4,000 6.65 26,600
2011-05-04 Weaver Paul C (Director) Option Exercise 2,000 5.00 10,000
2011-05-02 Weaver Audrey L (Director) Sale 2,520 37.50 94,500
2011-04-29 Hughes John (Director) Sale 100,000 37.31 3,731,000
2011-04-05 Weaver Leslie A (10% Owner) Sale 4,000 37.40 149,600
2011-03-25 Weaver Leslie A (10% Owner) Sale 6,000 34.26 205,560
2011-03-17 Washow Lawrence E (Director) Sale 15,000 32.00 480,000
2011-03-08 Johnson Michael R. (Vice President) Sale 7,000 32.00 224,000
2011-03-08 Stahl Dale E (Director) Option Exercise 2,000 5.00 10,000
2011-03-03 Proops Jay D (Director) Sale 2,000 31.08 62,166
2011-03-03 Proops Jay D (Director) Option Exercise 2,000 5.00 10,000
2011-02-17 Trauger Robert J. (Vice President) Sale 10,000 30.33 303,340
2011-02-10 Washow Lawrence E (Director) Sale 38,907 30.02 1,167,988
2011-02-09 Johnson Michael R. (Vice President) Purchase 7,000 20.90 146,300
2011-02-08 Weaver Audrey L (Director) Sale 3,000 30.40 91,203
2011-02-08 Weaver Audrey L (Director) Option Exercise 3,000 20.90 62,699
2011-02-07 Trauger Robert J. (Vice President) Sale 7,000 30.19 211,302
2011-02-07 Trauger Robert J. (Vice President) Option Exercise 7,000 20.90 146,300
2011-02-07 Proops Jay D (Director) Sale 3,000 30.12 90,360
2011-02-07 Proops Jay D (Director) Option Exercise 3,000 20.90 62,699
2011-02-07 Casey Daniel P (Director) Option Exercise 3,000 20.90 62,699
2011-02-03 Washow Lawrence E (Director) Sale 11,903 29.92 356,137
2011-02-01 Weaver Paul C (Director) Option Exercise 3,000 20.90 62,699
2011-02-01 Hughes John (Director) Sale 3,500 29.90 104,653
2011-02-01 Stahl Dale E (Director) Sale 3,000 30.15 90,450
2011-02-01 Stahl Dale E (Director) Option Exercise 3,000 20.90 62,699
2010-12-06 Washow Lawrence E (Director) Sale 24,136 29.15 703,516
2010-12-06 Washow Lawrence E (Director) Option Exercise 30,000 20.90 627,000
2010-12-06 Mckendrick Ryan F (Vice President) Sale 5,412 29.28 158,474
2010-12-06 Mckendrick Ryan F (Vice President) Option Exercise 6,666 20.90 139,319
2010-12-03 Proops Jay D (Director) Sale 5,000 29.50 147,500
2010-12-02 Hughes John (Director) Sale 3,000 29.10 87,297
2010-12-02 Hughes John (Director) Option Exercise 3,000 20.90 62,699
2010-12-02 Brown Arthur (Director) Sale 10,999 29.06 319,597
2010-12-02 Brown Arthur (Director) Option Exercise 10,999 15.53 170,792
2010-12-01 Redman Clarence O (Director) Sale 3,000 28.77 86,316
2010-12-01 Redman Clarence O (Director) Option Exercise 3,000 20.90 62,699
2010-11-09 Washow Lawrence E (Director) Sale 10,000 29.07 290,700
2010-11-05 Weaver Paul C (Director) Sale 4,000 29.74 118,960
2010-11-02 Hughes John (Director) Sale 24,211 28.14 681,321
2010-11-01 Washow Lawrence E (Director) Option Exercise 7,294 5.00 36,470
2010-10-26 Hughes John (Director) Sale 23,000 28.77 661,733
2010-08-20 Johnson Michael R. (Vice President) Purchase 915 25.13 22,991
2010-08-20 Castagna Gary L (Vice President) Option Exercise 5,000 5.00 25,000
2010-08-03 Proops Jay D (Director) Sale 10,000 30.00 300,000
2010-07-27 Hughes John (Director) Sale 3,000 29.84 89,505
2010-07-27 Washow Lawrence E (Director) Sale 20,460 29.85 610,731
2010-07-14 Brown Arthur (Director) Option Exercise 2,000 3.88 7,750
2010-06-29 Weaver Paul C (Director) Option Exercise 2,000 3.88 7,750
2010-05-12 Weaver Audrey L (Director) Sale 5,000 30.00 150,000
2010-05-12 Castagna Gary L (Vice President) Sale 5,000 30.25 151,250
2010-05-12 Castagna Gary L (Vice President) Option Exercise 5,000 20.90 104,500
2010-05-11 Proops Jay D (Director) Sale 3,000 30.00 90,000
2010-05-04 Washow Lawrence E (Director) Sale 15,000 29.15 437,250
2010-04-30 Washow Lawrence E (Director) Option Exercise 22,548 6.65 149,944
2010-04-27 Proops Jay D (Director) Sale 7,500 30.00 225,000
2010-04-27 Hughes John (Director) Sale 3,500 29.49 103,229
2010-03-03 Castagna Gary L (Vice President) Sale 5,000 27.00 135,000
2010-03-03 Castagna Gary L (Vice President) Option Exercise 5,000 20.90 104,500
2010-02-26 Johnson Michael R. (Vice President) Purchase 2,000 25.74 51,480
2010-02-10 Mckendrick Ryan F (Vice President) Purchase 4,500 24.61 110,745
2010-02-05 Brown Arthur (Director) Sale 3,000 25.09 75,270
2010-02-05 Brown Arthur (Director) Option Exercise 3,000 18.10 54,300
2010-02-05 Casey Daniel P (Director) Option Exercise 3,000 18.10 54,300
2010-02-03 Proops Jay D (Director) Sale 3,000 24.89 74,670
2010-02-03 Proops Jay D (Director) Option Exercise 3,000 18.10 54,300
2010-02-01 Weaver Paul C (Director) Option Exercise 3,000 18.10 54,300
2010-02-01 Redman Clarence O (Director) Sale 3,000 25.55 76,647
2010-02-01 Redman Clarence O (Director) Option Exercise 3,000 18.10 54,300
2010-01-26 Hughes John (Director) Sale 5,500 27.04 148,709
2010-01-26 Hughes John (Director) Option Exercise 3,000 18.10 54,300
2010-01-20 Stahl Dale E (Director) Option Exercise 3,000 18.10 54,300
2009-12-04 Washow Lawrence E (Director) Sale 22,900 28.31 648,344
2009-12-04 Washow Lawrence E (Director) Option Exercise 30,000 18.10 543,000
2009-12-03 Washow Lawrence E (Director) Option Exercise 21,406 5.00 107,030
2009-12-02 Weaver Paul C (Director) Sale 8,000 28.23 225,840
2009-12-02 Castagna Gary L (Vice President) Sale 1,000 28.00 28,000
2009-12-02 Castagna Gary L (Vice President) Option Exercise 1,000 18.10 18,100
2009-11-23 Hughes John (Director) Sale 2,000 28.89 57,780
2009-11-23 Hughes John (Director) Option Exercise 2,000 6.65 13,300
2009-11-10 Morrison Gary D (Vice President) Sale 24,000 28.32 679,608
2009-11-10 Morrison Gary D (Vice President) Option Exercise 24,000 10.99 263,712
2009-11-09 Love Lloyd F (Vice President) Sale 6,611 29.11 192,446
2009-10-27 Hughes John (Director) Sale 4,000 28.48 113,904
2009-10-27 Washow Lawrence E (Director) Sale 25,000 28.56 714,000
2009-08-21 Castagna Gary L (Vice President) Sale 8,000 22.43 179,432
2009-08-21 Castagna Gary L (Vice President) Option Exercise 8,000 18.10 144,800
2009-08-18 Washow Lawrence E (Director) Option Exercise 4,300 3.88 16,662

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Amcol International Corp (symbol ACO, CIK number 813621) see the Securities and Exchange Commission (SEC) website.



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