Donald E. Walther serves as Executive at TopBuild Corp, where they oversee executive responsibilities. Since joining the company, Donald E. Walther has executed 19 insider transactions totaling $9.0K, demonstrating a bullish approach to their equity position. Their most recent transaction on Nov 7, 2025 involved selling 868 shares valued at $2.6K.
Donald E. Walther currently holds 42,446 shares of TopBuild Corp (BLD), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Donald E. Walther has been a net buyer of BLD stock. They have purchased $9.0K and sold $0 worth of shares.
Donald E. Walther's most recent insider trade was on Nov 7, 2025, when they sold 868 shares at $3.04 per share.
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| $N/A |
| Discretionary |
| Sep 30, 2025 | CMTL | $0 | Option Exercise | 15,946 | $N/A | Discretionary |
| Sep 30, 2025 | CMTL | $13.7K | Payment | 5,311 | $2.58 | Discretionary |
| Aug 11, 2025 | CMTL | $3.9K | Payment | 1,959 | $1.99 | Discretionary |
| Aug 11, 2025 | CMTL | $0 | Option Exercise | 5,882 | $N/A | Discretionary |
| Aug 11, 2024 | CMTL | $0 | Option Exercise | 5,883 | $N/A | Discretionary |
| Aug 11, 2024 | CMTL | $6.2K | Payment | 1,960 | $3.17 | Discretionary |
| Jul 31, 2024 | CMTL | $60.0K | Award | 18,519 | $3.24 | Discretionary |
| Jul 31, 2024 | CMTL | $20.0K | Payment | 6,167 | $3.24 | Discretionary |
| Jul 27, 2024 | CMTL | $0 | Option Exercise | 12,900 | $N/A | Discretionary |
| Jul 27, 2024 | CMTL | $20.2K | Payment | 5,928 | $3.40 | Discretionary |
| Apr 28, 2024 | CMTL | $0 | Option Exercise | 1,685 | $N/A | Discretionary |
| Apr 28, 2024 | CMTL | $1.9K | Payment | 904 | $2.05 | Discretionary |
| Jul 27, 2023 | CMTL | $5.9K | Payment | 587 | $10.01 | Discretionary |
| Jul 27, 2023 | CMTL | $0 | Option Exercise | 587 | $N/A | Discretionary |
| Jun 14, 2023 | CMTL | $4.4K | Purchase | 500 | $8.86 | Discretionary |
| Jun 13, 2023 | CMTL | $4.6K | Purchase | 500 | $9.23 | Discretionary |
| May 6, 2019 | BLD | $0 | Award | 6,780 | $N/A | Discretionary |