Hockey transactions

National Hockey League

CHICAGO BLACKHAWKS-Signed C Petri Kontiola and C Adam Hobson to three-year contracts. Signed D Magnus Johansson.

PHILADELPHIA FLYERS-Traded RW Matt Ellison to Nashville for future considerations.

VANCOUVER CANUCKS-Re-signed F Taylor Pyatt to a two-year contract.

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American Hockey League

HARTFORD WOLF PACK-Signed G Miika Wiikman.

IOWA STARS-Signed G Steve Silverthorn to a one-year contract.

WORCESTER SHARKS-Named Cristin Houlihan office manager, Timothy Wegner account executive and ticket sales analyst and Kaitlin Kohutanycz account executive.