Maatta was acquired by the Blackhawks from the Penguins on Saturday in exchange for forward Dominik Kahun and a 2019 fifth-round pick.
Kubalik signed a one-year, $925,000 contract with the Blackhawks on Wednesday.
Gravel stopped 33 of 35 shots in Halifax's 4-2 victory over Guelph in CHL Memorial Cup action on Sunday.
Koekkoek penned a one-year, $925,000 contract extension with Chicago on Monday, Eric Lear of the Blackhawks' official site reports.
Moutrey signed a one-year deal with AHL Rockford on Monday.
Kane has earned a Ted Lindsay Award nomination for most outstanding player as voted by his peers, reports TSN.ca.
Versteeg has signed a one-year contract with AHL Rockford.
Nilsson agreed to terms on a one-year contract extension with the Blackhawks on Friday.
Lankinen was named to Team Finland's preliminary roster for the IIHF World Championships on Wednesday.
Jokiharju was named to Team Finland's preliminary roster for the World Championships on Wednesday.
Kruger is expected to represent Team Sweden at the upcoming IIHF World Championships, Scott Powers of The Athletic reports.
The Blackhawks reassigned Lankinen to AHL Rockford on Sunday.
Crawford (groin) won't suit up for Saturday's game versus the Predators, Mark Lazerus of The Athletic reports.
Ward will defend the blue paint in Saturday's road matchup with the Predators, Jason Lieser of the Chicago Sun-Times reports.
Kurashev made his professional debut in AHL Rockford's 2-1 loss to Texas on Friday.
Seabrook notched two assists in Friday's 6-1 win over the Stars.
Kane scored two goals in Friday's 6-1 win over the Stars.
Ward stopped 25 of 26 shots after replacing Corey Crawford (groin) early in the second period of Friday's 6-1 win over the Stars.
Crawford's removal from Friday's game against the Stars was due to a groin injury, Jason Lieser of the Chicago Sun-Times reports.
Crawford was replaced by Cam Ward in the second period of Friday's game versus the Stars, Mark Lazerus of The Athletic reports.
Kampf (face) will return to the lineup for Friday's game against the Stars.
Crawford will patrol the crease in Friday's home game against the Stars, Jason Lieser of the Chicago Sun-Times reports.
Gilbert was reassigned to AHL Rockford on Thursday.
The Blackhawks reassigned Sikura to AHL Rockford following Monday's 4-3 loss to the Jets, Scott Powers of The Athletic reports.
Crawford will face the Jets on Monday, Tracey Myers of NHL.com reports.