February 29, 2024 · Form 4 insider transaction
Loomes David bought 2,589 shares of Summit Materials Inc, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 4 days after the transaction.
Reflects restricted stock units that upon vesting converted into shares of Class A common stock of the Issuer ("Class A Common Stock") on a one-for-one basis.