Lawrence E. Washow serves as Executive at AMCOL INTERNATIONAL CORP, where they oversee executive responsibilities. Since joining the company, Lawrence E. Washow has executed 48 insider transactions totaling $9.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 15, 2025 involved receiving (via award) 1,000 shares valued at $51.7K.
Lawrence E. Washow currently holds 31,000 shares of AMCOL INTERNATIONAL CORP (ACO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Lawrence E. Washow has been a net seller of ACO stock. They have purchased $154.4K and sold $9.4M worth of shares.
Lawrence E. Washow's most recent insider trade was on Dec 15, 2025, when they sold 1,000 shares at $51.68 per share.
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| $68.89 |
| Discretionary |
| Sep 10, 2021 | ODC | $69.0K | Award | 2,000 | $34.48 | Discretionary |
| Dec 8, 2020 | ODC | $71.0K | Award | 2,000 | $35.50 | Discretionary |
| Nov 2, 2018 | ODC | $61.9K | Award | 2,000 | $30.94 | Discretionary |
| Dec 13, 2016 | ODC | $58.8K | Award | 1,500 | $39.22 | Discretionary |
| Dec 15, 2014 | ODC | $43.2K | Award | 1,500 | $28.81 | Discretionary |
| Jan 23, 2014 | ODC | $57.8K | Purchase | 1,605 | $36.03 | Discretionary |
| Jan 22, 2014 | ODC | $12.2K | Purchase | 340 | $35.93 | Discretionary |
| Jan 17, 2014 | ODC | $2.0K | Purchase | 55 | $35.75 | Discretionary |
| Apr 11, 2013 | ODC | $82.4K | Purchase | 3,000 | $27.46 | Discretionary |
| Jun 17, 2011 | ACO | $49.6K | Option Exercise | 7,452 | $6.65 | Discretionary |
| Mar 17, 2011 | ACO | $480.0K | Sale | 15,000 | $32.00 | Discretionary |
| Feb 10, 2011 | ACO | $1.2M | Sale | 38,907 | $30.02 | Discretionary |
| Feb 3, 2011 | ACO | $356.1K | Sale | 11,903 | $29.92 | Discretionary |
| Dec 6, 2010 | ACO | $627.0K | Option Exercise | 30,000 | $20.90 | Discretionary |
| Dec 6, 2010 | ACO | $703.6K | Sale | 24,136 | $29.15 | Discretionary |
| Nov 9, 2010 | ACO | $290.7K | Sale | 10,000 | $29.07 | Discretionary |
| Nov 1, 2010 | ACO | $36.5K | Option Exercise | 7,294 | $5.00 | Discretionary |
| Jul 27, 2010 | ACO | $610.7K | Sale | 20,460 | $29.85 | Discretionary |
| May 4, 2010 | ACO | $437.3K | Sale | 15,000 | $29.15 | Discretionary |
| Apr 30, 2010 | ACO | $149.9K | Option Exercise | 22,548 | $6.65 | Discretionary |
| Dec 4, 2009 | ACO | $543.0K | Option Exercise | 30,000 | $18.10 | Discretionary |
| Dec 4, 2009 | ACO | $648.3K | Sale | 22,900 | $28.31 | Discretionary |
| Dec 3, 2009 | ACO | $107.0K | Option Exercise | 21,406 | $5.00 | Discretionary |
| Oct 27, 2009 | ACO | $714.0K | Sale | 25,000 | $28.56 | Discretionary |
| Aug 18, 2009 | ACO | $16.7K | Option Exercise | 4,300 | $3.88 | Discretionary |
| Jun 5, 2009 | ACO | $233.4K | Sale | 10,000 | $23.34 | Discretionary |
| Apr 28, 2009 | ACO | $193.8K | Sale | 10,000 | $19.38 | Discretionary |
| Feb 2, 2009 | ACO | $73.1K | Sale | 5,046 | $14.49 | Discretionary |