Luukkonen signed a five-year, $23.75 million contract with the Sabres on Wednesday.
Malenstyn and the Sabres agreed to terms on a two-year, $2.7 million contract Tuesday, Elliotte Friedman of Sportsnet reports.
Helenius signed a three-year, entry-level contract with Buffalo on Monday.
Jokiharju signed a one-year, $3.1 million contract with the Sabres on Friday.
Tullio was acquired by the Sabres from the Oilers along with Ryan McLeod on Friday in exchange for Matthew Savoie, per Jason Gregor of Sports 1440 Edmonton.
McLeod was acquired by the Sabres from the Oilers along with Tyler Tullio on Friday in exchange for Matthew Savoie, according to Jason Gregor of Sports 1440 Edmonton.
Poolman signed a one-year, two-way contract with Buffalo on Tuesday.
Reimer inked a one-year, $1 million contract with Buffalo on Tuesday.
Sandstrom agreed to terms on a one-year, two-way contract with the Sabres on Monday.
Rathbone signed a one-year, two-way contract with the Sabres on Monday.
Murray signed a one-year, two-way contract with Buffalo on Monday.
Jobst signed a one-year, two-way contract with the Sabres on Monday.
Dunne signed a two-year, two-way contract with the Sabres on Monday.
Gilbert signed a one-year, $825,000 contract with the Sabres on Monday.
Bryson signed a one-year, $900,000 contract with Buffalo on Monday.
Aube-Kubel signed a one-year, $1.5 million contract with Buffalo on Monday.
Zucker signed a one-year, $5 million contract with the Sabres on Monday, per Elliotte Friedman of Sportsnet.
Lafferty signed a two-year, $4 million contract with the Sabres on Monday, per Elliotte Friedman of Sportsnet.
Ziemer was the 71st overall pick by the Sabres in the 2024 NHL Entry Draft on Saturday.
Kleber was the 42nd overall pick by the Sabres in the 2024 NHL Entry Draft on Saturday.
Malenstyn was traded to Buffalo from Washington for the Sabres' second-round pick, 43rd overall on Saturday.
Clague signed a one-year, two-way contract with Buffalo on Friday, Bill Hoppe of the Olean Times Herald reports.
Samuelsson (shoulder) has been cleared to resume skating, Lance Lysowski of The Buffalo News reports Thursday.
Luukkonen gave up three goals on 42 shots (.929 save percentage) in Saturday's 3-2 overtime loss to Florida.
Ostlund was reassigned to AHL Rochester on Wednesday.