Who
Robert M. Buck
CEO
Company insider
Files Form 4 as: CEO, TopBuild; Director, Core & Main.
In numbers
- Trades disclosed
- 168
- Buys
- 0
- Sells
- 25
- Bought
- $0
- Sold
- $27.8M
- Companies
- 2
- Companies where not an officer
- 1
- First trade
- 8 Jul 2015
- Last trade
- 1 Jul 2026
- Last filed
- 1 Jul 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 1 Jul 2026filed 1 Jul 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code D | —40,372 at $0.00 | filing |
| 1 Jul 2026filed 1 Jul 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code D | —10,327 at $0.00 | filing |
| 1 Jul 2026filed 1 Jul 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code D | —23,688 at $0.00 | filing |
| 1 Jul 2026filed 1 Jul 2026 | QXO Insulation | SEC FORM 4 Code D | —40,372 at $0.00 | filing |
| 1 Jul 2026filed 1 Jul 2026 | QXO Insulation | SEC FORM 4 Code D | —10,327 at $0.00 | filing |
| 1 Jul 2026filed 1 Jul 2026 | QXO Insulation | SEC FORM 4 Code D | —23,688 at $0.00 | filing |
| 23 Jun 2026filed 24 Jun 2026 | CNM Core & MainDistributors & Wholesale | SEC FORM 4 Code A | —2,799 at $0.00 | filing |
| 23 Jun 2026filed 24 Jun 2026 | CNM Core & MainDistributors & Wholesale | SEC FORM 4 Code A | —2,799 at $0.00 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code A | $2.3M4,294 at $545.06 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code A | $1.8M3,220 at $545.06 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuildEngineering & Construction | SEC FORM 4 Code A | $1.8M3,220 at $545.06 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuild | SEC FORM 4 Code A | $2.3M4,294 at $545.06 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuild | SEC FORM 4 Code A | $1.8M3,220 at $545.06 | filing |
| 17 Feb 2026filed 18 Feb 2026 | TopBuild | SEC FORM 4 Code A | $1.8M3,220 at $545.06 | filing |
| 11 Dec 2025filed 12 Dec 2025 | TopBuild | SEC FORM 4 Sold | $2.3M5,000 at $453.39 | filing |
| 7 Nov 2025filed 10 Nov 2025 | TopBuild | SEC FORM 4 Sold | $2.1M5,000 at $418.01 | filing |
| 7 Aug 2025filed 8 Aug 2025 | TopBuild | SEC FORM 4 Sold | $3.1M7,350 at $415.19 | filing |
| 24 Jun 2025filed 26 Jun 2025 | CNM Core & MainDistributors & Wholesale | SEC FORM 4 Code A | —2,189 at $0.00 | filing |
| 18 Feb 2025filed 20 Feb 2025 | TopBuild | SEC FORM 4 Code A | $2.1M6,598 at $321.33 | filing |
| 18 Feb 2025filed 20 Feb 2025 | TopBuild | SEC FORM 4 Code A | $1.6M4,949 at $321.33 | filing |
News
No headline names them, or the companies they trade most, lately.