Veronneau signed a one-year, two-way contract with the Sharks on Thursday. The deal will start with the 2022-23 campaign.
Veronneau did not receive a qualifying offer from the Maple Leafs and will be a UFA on Friday, Elliotte Friedman of Sportsnet reports.
The Senators traded Veronneau to the Maple Leafs for Aaron Luchuk and a 2021 conditional sixth-round pick.
Veronneau was assigned to AHL Belleville on Thursday.
Veronneau was promoted from AHL Belleville on Monday.
Veronneau was sent to AHL Belleville on Sunday.
Veronneau agreed to terms on a two-year, entry-level contract with Ottawa on Tuesday.