| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SUM | Class A Common Stock | Conversion of derivative security | +90K | +2253.38% | 94K | Jun 14, 2021 | Direct | F1 | ||
| transaction | SUM | Class A Common Stock | Options Exercise | $1.49M | +82.5K | +87.77% | $18.00 | 176K | Jun 14, 2021 | Direct | |
| transaction | SUM | Class A Common Stock | Sale | -$2.83M | -82.5K | -46.74% | $34.30 | 94K | Jun 14, 2021 | Direct | F2 |
| transaction | SUM | Class A Common Stock | Options Exercise | $1.49M | +82.5K | +87.77% | $18.00 | 176K | Jun 15, 2021 | Direct | |
| transaction | SUM | Class A Common Stock | Sale | -$2.85M | -82.5K | -46.74% | $34.53 | 94K | Jun 15, 2021 | Direct | F3 |
| transaction | SUM | Class A Common Stock | Sale | -$3.09M | -90K | -95.75% | $34.33 | 3.99K | Jun 16, 2021 | Direct | F4 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SUM | LP Units of Summit Materials Holdings L.P. | Conversion of derivative security | -90K | -66.29% | 45.8K | Jun 14, 2021 | Class A Common Stock | 90K | Direct | F1 | |||
| transaction | SUM | Options (right to buy) | Options Exercise | $0 | -82.5K | -33.45% | $0.00 | 164K | Jun 14, 2021 | Class A Common Stock | 82.5K | Direct | F1, F5 | |
| transaction | SUM | Options (right to buy) | Options Exercise | $0 | -82.5K | -50.27% | $0.00 | 81.6K | Jun 15, 2021 | Class A Common Stock | 82.5K | Direct | F1, F5 |
| Id | Content |
|---|---|
| F1 | Pursuant to the terms of an exchange agreement, dated as of March 11, 2015, the limited partnership units of Summit Materials Holdings L.P. ("LP Units") reported herein are exchangeable from and after the first anniversary of the closing of the Issuer's initial public offering (subject to the terms of the exchange agreement and vesting requirements, including certain vesting events more fully described in the Issuer's Registration Statement on Form S-1 (File No. 333-201058)) for shares of the issuer's Class A common stock on a one-for-one basis. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $34.03 to $34.47, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The Reporting Person remains within compliance of the Issuer's equity ownership guidelines. |
| F3 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $34.36 to $34.75, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The Reporting Person remains within compliance of the Issuer's equity ownership guidelines. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $34.02 to $34.54, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The Reporting Person remains within compliance of the Issuer's equity ownership guidelines. |
| F5 | These options are fully vested. |