The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Achille John Frank | President and COO | Disposed to issuer(D) | 507 | — | $0 |
| Jul 1, 2026 | Achille John Frank | President and COO | Disposed to issuer(D) | 4K | — | $0 |
| Jul 1, 2026 | Achille John Frank | President and COO | Disposed to issuer(D) | 2K | — | $0 |
| Jul 1, 2026 | Shoffner Jennifer | Vice President & CHRO | Disposed to issuer(D) | 8K | — | $0 |
| Jul 1, 2026 | Shoffner Jennifer | Vice President & CHRO | Disposed to issuer(D) | 1K | — | $0 |
| Jul 1, 2026 | Shoffner Jennifer | Vice President & CHRO | Disposed to issuer(D) | 3K | — | $0 |
| Jul 1, 2026 | Buck Robert M | CEO, Director | Disposed to issuer(D) | 40K | — | $0 |
| Jul 1, 2026 | Buck Robert M | CEO, Director | Disposed to issuer(D) | 10K | — | $0 |
| Jul 1, 2026 | Buck Robert M | CEO, Director | Disposed to issuer(D) | 24K | — | $0 |
| Jul 1, 2026 | Otero Madeline | Vice President and CAO | Disposed to issuer(D) | 86 | — | $0 |
| Jul 1, 2026 | Otero Madeline | Vice President and CAO | Disposed to issuer(D) | 283 | — | $0 |
| Jul 1, 2026 | Otero Madeline | Vice President and CAO | Disposed to issuer(D) | 610 | — | $0 |
| Jul 1, 2026 | Cantie Joseph S | Director | Disposed to issuer(D) | 23K | — | $0 |
| Jul 1, 2026 | Cantie Joseph S | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Drake Deirdre | Director | Disposed to issuer(D) | 2K | — | $0 |
| Jul 1, 2026 | Drake Deirdre | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Petrarca Mark A | Director | Disposed to issuer(D) | 15K | — | $0 |
| Jul 1, 2026 | Petrarca Mark A | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Kuhns Robert M | Vice President and CFO | Disposed to issuer(D) | 8K | — | $0 |
| Jul 1, 2026 | Kuhns Robert M | Vice President and CFO | Disposed to issuer(D) | 3K | — | $0 |
| Jul 1, 2026 | Kuhns Robert M | Vice President and CFO | Disposed to issuer(D) | 6K | — | $0 |
| Jul 1, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Disposed to issuer(D) | 4K | — | $0 |
| Jul 1, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Disposed to issuer(D) | 2K | — | $0 |
| Jul 1, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Disposed to issuer(D) | 4K | — | $0 |
| Jul 1, 2026 | Donikowski Tina | Director | Disposed to issuer(D) | 4K | — | $0 |
| Jul 1, 2026 | Donikowski Tina | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Covington Alec C | Director | Disposed to issuer(D) | 15K | — | $0 |
| Jul 1, 2026 | Covington Alec C | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Bautista Ernesto III | Director | Disposed to issuer(D) | 2K | — | $0 |
| Jul 1, 2026 | Bautista Ernesto III | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Taylor Nancy M | Director | Disposed to issuer(D) | 6K | — | $0 |
| Jul 1, 2026 | Taylor Nancy M | Director | Disposed to issuer(D) | 343 | — | $0 |
| Jul 1, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Disposed to issuer(D) | 6K | — | $0 |
| Jul 1, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Disposed to issuer(D) | 1K | — | $0 |
| Jul 1, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Disposed to issuer(D) | 3K | — | $0 |
| Jul 1, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Disposed to issuer(D) | 2K | — | $0 |
| Apr 27, 2026 | Taylor Nancy M | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Petrarca Mark A | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Covington Alec C | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Cantie Joseph S | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Drake Deirdre | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Bautista Ernesto III | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 27, 2026 | Donikowski Tina | Director | Grant(A) | 343 | $445.78 | $153K |
| Apr 1, 2026 | Achille John Frank | President and COO | Grant(A) | 3K | $369.16 | $1.2M |
| Feb 17, 2026 | Buck Robert M | President and CEO, Director | Grant(A) | 3K | $545.06 | $1.8M |
| Feb 17, 2026 | Buck Robert M | President and CEO, Director | Grant(A) | 3K | $545.06 | $1.8M |
| Feb 17, 2026 | Buck Robert M | President and CEO, Director | Grant(A) | 4K | $545.06 | $2.3M |
| Feb 17, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Grant(A) | 471 | $545.06 | $257K |
| Feb 17, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Grant(A) | 471 | $545.06 | $257K |
| Feb 17, 2026 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Grant(A) | 628 | $545.06 | $342K |
| Feb 17, 2026 | Kuhns Robert M | Vice President and CFO | Grant(A) | 812 | $545.06 | $443K |
| Feb 17, 2026 | Kuhns Robert M | Vice President and CFO | Grant(A) | 812 | $545.06 | $443K |
| Feb 17, 2026 | Kuhns Robert M | Vice President and CFO | Grant(A) | 1K | $545.06 | $590K |
| Feb 17, 2026 | Otero Madeline | Vice President and CAO | Grant(A) | 147 | $545.06 | $80K |
| Feb 17, 2026 | Otero Madeline | Vice President and CAO | Grant(A) | 111 | $545.06 | $61K |
| Feb 17, 2026 | Otero Madeline | Vice President and CAO | Grant(A) | 111 | $545.06 | $61K |
| Feb 17, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Grant(A) | 534 | $545.06 | $291K |
| Feb 17, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Grant(A) | 534 | $545.06 | $291K |
| Feb 17, 2026 | Raia Steven P | Pres, Sp Ops & Exec Adv | Grant(A) | 712 | $545.06 | $388K |
| Feb 17, 2026 | Shoffner Jennifer | Vice President & CHRO | Grant(A) | 380 | $545.06 | $207K |
| Feb 17, 2026 | Shoffner Jennifer | Vice President & CHRO | Grant(A) | 380 | $545.06 | $207K |
| Feb 17, 2026 | Shoffner Jennifer | Vice President & CHRO | Grant(A) | 507 | $545.06 | $276K |
| Feb 17, 2026 | Viselli Joey M | VP and Chief Growth Officer | Grant(A) | 496 | $545.06 | $270K |
| Feb 17, 2026 | Viselli Joey M | VP and Chief Growth Officer | Grant(A) | 496 | $545.06 | $270K |
| Feb 17, 2026 | Viselli Joey M | VP and Chief Growth Officer | Grant(A) | 661 | $545.06 | $360K |
| Feb 17, 2026 | Achille John Frank | COO | Grant(A) | 844 | $545.06 | $460K |
| Feb 17, 2026 | Achille John Frank | COO | Grant(A) | 633 | $545.06 | $345K |
| Feb 17, 2026 | Achille John Frank | COO | Grant(A) | 633 | $545.06 | $345K |
| Dec 11, 2025 | Buck Robert M | President and CEO, Director | Sell(S) | 5K | $453.39 | $2.3M |
| Dec 4, 2025 | Taylor Nancy M | Director | Gift(G) | 71 | — | $0 |
| Nov 26, 2025 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Sell(S) | 1K | $450.40 | $450K |
| Nov 24, 2025 | Bautista Ernesto III | Director | Sell(S) | 130 | $432.30 | $56K |
| Nov 7, 2025 | Buck Robert M | President and CEO, Director | Sell(S) | 5K | $418.01 | $2.1M |
| Sep 2, 2025 | Donikowski Tina | Director | Gift(G) | 465 | — | $0 |
| Aug 27, 2025 | Donikowski Tina | Director | Sell(S) | 370 | $427.89 | $158K |
| Aug 22, 2025 | Kuhns Robert M | Vice President and CFO | Sell(S) | 1K | $437.47 | $591K |
| Aug 22, 2025 | Shoffner Jennifer | Vice President & CHRO | Option exercise(M) | 1K | $440.30 | $649K |
| Aug 12, 2025 | Viselli Joey M | VP and Chief Growth Officer | Sell(S) | 467 | $415.44 | $194K |
| Aug 8, 2025 | Kuhns Robert M | Vice President and CFO | Sell(S) | 2K | $416.10 | $832K |
| Aug 7, 2025 | Machado Luis Francisco | VP, Gen. Counsel, Corp Sec. | Sell(S) | 990 | $415.02 | $411K |
| Aug 7, 2025 | Krestancic Jeff M | President, TruTeam | Sell(S) | 373 | $415.00 | $155K |
| Aug 7, 2025 | Kuhns Robert M | Vice President and CFO | Sell(S) | 2K | $418.37 | $669K |
| Aug 7, 2025 | Kuhns Robert M | Vice President and CFO | Option exercise(M) | 313 | $420.80 | $132K |
| Aug 7, 2025 | Buck Robert M | President and CEO, Director | Sell(S) | 7K | $415.19 | $3.1M |
| Jun 3, 2025 | Taylor Nancy M | Director | Sell(S) | 125 | $285.77 | $36K |
| May 29, 2025 | Taylor Nancy M | Director | Gift(G) | 89 | — | $0 |
| May 12, 2025 | Raia Steven P | Pres, Sp Ops & Exec Adv | Sell(S) | 2K | $310.98 | $540K |
| Apr 28, 2025 | Covington Alec C | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Bautista Ernesto III | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Cantie Joseph S | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Drake Deirdre | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Donikowski Tina | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Taylor Nancy M | Director | Grant(A) | 515 | $296.65 | $153K |
| Apr 28, 2025 | Petrarca Mark A | Director | Grant(A) | 515 | $296.65 | $153K |
| Mar 7, 2025 | Taylor Nancy M | Director | Gift(G) | 62 | — | $0 |
| Mar 3, 2025 | Raia Steven P | Pres, Sp Ops & Exec Adv | Sell(S) | 2K | $306.92 | $546K |
| Feb 18, 2025 | Kuhns Robert M | Vice President and CFO | Grant(A) | 1K | $321.33 | $420K |
| Feb 18, 2025 | Kuhns Robert M | Vice President and CFO | Grant(A) | 2K | $321.33 | $560K |
| Feb 18, 2025 | Kuhns Robert M | Vice President and CFO | Grant(A) | 1K | $321.33 | $420K |
| Feb 18, 2025 | Buck Robert M | President and CEO, Director | Grant(A) | 7K | $321.33 | $2.1M |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2019-12-30 → 2026-08-06. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for BLD