William M. Lambert serves as Executive at MINE SAFETY APPLIANCES CO, where they oversee executive responsibilities. Since joining the company, William M. Lambert has executed 238 insider transactions totaling $86.8M, demonstrating a bearish approach to their equity position. Their most recent transaction on Aug 10, 2020 involved selling 53,922 shares valued at $6.7M.
William M. Lambert currently holds 76,992 shares of MINE SAFETY APPLIANCES CO (MSA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William M. Lambert has been a net seller of MSA stock. They have purchased $1.2M and sold $85.6M worth of shares.
William M. Lambert's most recent insider trade was on Aug 10, 2020, when they sold 53,922 shares at $124.03 per share.
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| $48.95 |
| Discretionary |
| Jul 31, 2020 | KMT | $58.5K | Option Exercise | 2,171 | $26.96 | Discretionary |
| May 15, 2020 | MSA | $0 | Award | 1,132 | $N/A | Discretionary |
| Mar 20, 2020 | MSA | $817.5K | Sale | 7,500 | $109.00 | Discretionary |
| Mar 8, 2020 | MSA | $2.7M | Payment | 20,840 | $129.40 | Discretionary |
| Mar 8, 2020 | MSA | $0 | Award | 47,930 | $N/A | Discretionary |
| Mar 4, 2020 | MSA | $0 | Gift | 7,500 | $N/A | Discretionary |
| Mar 4, 2020 | MSA | $0 | Gift | 7,500 | $N/A | Discretionary |
| Mar 4, 2020 | MSA | $1.9M | Option Exercise | 51,374 | $36.69 | Discretionary |
| Mar 4, 2020 | MSA | $4.5M | Sale | 35,142 | $129.42 | Discretionary |
| Mar 4, 2020 | MSA | $1.5M | Sale | 11,232 | $130.51 | Discretionary |
| Dec 6, 2019 | MSA | $0 | Gift | 8,076 | $N/A | Discretionary |
| Oct 30, 2019 | MSA | $6.3M | Sale | 52,163 | $120.38 | Discretionary |
| Oct 30, 2019 | MSA | $1.8M | Option Exercise | 52,163 | $33.55 | Discretionary |
| Aug 1, 2019 | KMT | $125.1K | Option Exercise | 3,774 | $33.15 | Discretionary |
| May 22, 2019 | MSA | $0 | Award | 1,235 | $N/A | Discretionary |
| Mar 13, 2019 | MSA | $431.6K | Sale | 4,200 | $102.77 | Discretionary |
| Mar 13, 2019 | MSA | $124.8K | Sale | 1,200 | $104.02 | Discretionary |
| Mar 13, 2019 | MSA | $2.0M | Sale | 19,192 | $103.62 | Discretionary |
| Mar 8, 2019 | MSA | $0 | Award | 51,129 | $N/A | Discretionary |
| Mar 8, 2019 | MSA | $2.2M | Payment | 21,342 | $102.27 | Discretionary |
| Dec 14, 2018 | MSA | $0 | Gift | 14,000 | $N/A | Discretionary |
| Nov 28, 2018 | MSA | $1.1M | Sale | 10,137 | $105.97 | Discretionary |
| Nov 26, 2018 | MSA | $1.1M | Sale | 9,863 | $106.49 | Discretionary |
| Sep 26, 2018 | MSA | $0 | Gift | 1,500 | $N/A | Discretionary |
| Sep 24, 2018 | MSA | $0 | Gift | 5,000 | $N/A | Discretionary |
| Aug 1, 2018 | KMT | $100.7K | Option Exercise | 2,669 | $37.74 | Discretionary |
| Jun 19, 2018 | MSA | $1.3M | Sale | 13,536 | $94.86 | Discretionary |
| Jun 18, 2018 | MSA | $441.4K | Sale | 4,700 | $93.91 | Discretionary |