20 insiders reported 67 Form 4 transactions for Summit Materials, Inc. (SUM) over the past 18 months (most recent 2025-02-10). Recent activity: Moore Marshall D (See Remarks) Sell 310 shares, Wade Anne K. (Director) Sell 22,121 shares, CANTIE JOSEPH S (Director) Sell 5,187 shares, Cooney Anne M (Director) Sell 13,505 shares, DePriest Charles (See Remarks) Sell 20,873 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-02-10 | Moore Marshall D | See Remarks | Sell | 310 | $16,275 |
| 2025-02-10 | Wade Anne K. | Director | Sell | 22,121 | $1.2M |
| 2025-02-10 | CANTIE JOSEPH S | Director | Sell | 5,187 | $272,318 |
| 2025-02-10 | Cooney Anne M | Director | Sell | 13,505 | $709,012 |
| 2025-02-10 | DePriest Charles | See Remarks | Sell | 20,873 | $1.1M |
| 2025-02-10 | Loomes David | EVP, Cement | Sell | 33,674 | $1.8M |
| 2025-02-10 | Cementos Argos S.A. | Director | Sell | 48.5M | $2.55B |
| 2025-02-10 | CANTIE JOSEPH S | Director | Sell | 39,036 | $2.0M |
| 2025-02-10 | Argos SEM, LLC | Director | Sell | 48.5M | $2.55B |
| 2025-02-10 | Valle Cement Investments, Inc. | Director | Sell | 48.5M | $2.55B |
| 2025-02-10 | Valle Cement Investments, Inc. | Director | Sell | 6.2M | $324.1M |
| 2025-02-10 | Cementos Argos S.A. | Director | Sell | 6.2M | $324.1M |
| 2025-02-10 | Grupo Argos S.A. | Director | Sell | 6.2M | $324.1M |
| 2025-02-10 | Argos SEM, LLC | Director | Sell | 6.2M | $324.1M |
| 2025-02-10 | Valle Cement Investments, Inc. | Director | Sell | 1 | $0 |
| 2025-02-10 | Cementos Argos S.A. | Director | Sell | 1 | $0 |
| 2025-02-10 | Grupo Argos S.A. | Director | Sell | 1 | $0 |
| 2025-02-10 | Argos SEM, LLC | Director | Sell | 1 | $0 |
| 2025-02-10 | Noonan Anne P | President & CEO | Sell | 362,421 | $19.0M |
| 2025-02-10 | WUNNING STEVEN H | Director | Sell | 39,013 | $2.0M |
| 2025-02-10 | LANCE HOWARD L | Director | Sell | 62,135 | $3.3M |
| 2025-02-10 | Oates-Forney Tamla | Director | Sell | 11,975 | $628,688 |
| 2025-02-10 | Gaskill Christopher Burke | See Remarks | Sell | 44,693 | $2.3M |
| 2025-02-10 | Anderson Karli S. | See Remarks | Sell | 48,285 | $2.5M |
| 2025-02-10 | Grupo Argos S.A. | Director | Sell | 48.5M | $2.55B |
Source: SEC Form 4 filings · as of 2025-02-10
