
| Date | Player | Transaction |
|---|---|---|
| Transaction | ||
11/17/25 | ![]() Dennis Gilbert D | The Philadelphia Flyers traded D Dennis Gilbert to the Ottawa Senators. |
| The Philadelphia Flyers traded D Dennis Gilbert to the Ottawa Senators. | ||
11/17/25 | ![]() Maxence Guenette D | The Ottawa Senators traded D Maxence Guenette to the Philadelphia Flyers. |
| The Ottawa Senators traded D Maxence Guenette to the Philadelphia Flyers. | ||
10/15/25 | ![]() Donovan Sebrango D | The Florida Panthers claimed D Donovan Sebrango off waivers from the Ottawa Senators. |
| The Florida Panthers claimed D Donovan Sebrango off waivers from the Ottawa Senators. | ||
10/14/25 | ![]() Donovan Sebrango D | The Ottawa Senators waived D Donovan Sebrango. |
| The Ottawa Senators waived D Donovan Sebrango. | ||
10/5/25 | ![]() Jan Jenik C | The Ottawa Senators waived F Jan Jenik. |
| The Ottawa Senators waived F Jan Jenik. | ||
10/5/25 | ![]() Lassi Thomson D | The Ottawa Senators waived D Lassi Thomson. |
| The Ottawa Senators waived D Lassi Thomson. | ||
10/3/25 | ![]() Kurtis MacDermid LW | The New Jersey Devils traded F Kurtis MacDermid to the Ottawa Senators. |
| The New Jersey Devils traded F Kurtis MacDermid to the Ottawa Senators. | ||
10/3/25 | ![]() Zack MacEwen RW | The Ottawa Senators traded F Zack MacEwen to the New Jersey Devils. |
| The Ottawa Senators traded F Zack MacEwen to the New Jersey Devils. | ||
9/25/25 | ![]() Wyatt Bongiovanni LW | The Ottawa Senators waived F Wyatt Bongiovanni. |
| The Ottawa Senators waived F Wyatt Bongiovanni. | ||
9/25/25 | ![]() Cameron Crotty D | The Ottawa Senators waived D Cameron Crotty. |
| The Ottawa Senators waived D Cameron Crotty. | ||
9/25/25 | ![]() Garrett Pilon C | The Ottawa Senators waived F Garrett Pilon. |
| The Ottawa Senators waived F Garrett Pilon. | ||
6/30/25 | ![]() Angus Crookshank LW | F Angus Crookshank elected free agency. |
| F Angus Crookshank elected free agency. | ||
6/30/25 | ![]() Anton Forsberg G | Ottawa Senators G Anton Forsberg declared free agency. |
| Ottawa Senators G Anton Forsberg declared free agency. | ||
6/30/25 | ![]() Adam Gaudette RW | F Adam Gaudette elected free agency. |
| F Adam Gaudette elected free agency. | ||
6/30/25 | ![]() Dennis Gilbert D | D Dennis Gilbert elected free agency. |
| D Dennis Gilbert elected free agency. | ||
6/30/25 | ![]() Travis Hamonic D | Ottawa Senators D Travis Hamonic declared free agency. |
| Ottawa Senators D Travis Hamonic declared free agency. | ||
6/30/25 | ![]() Matthew Highmore C | F Matthew Highmore elected free agency. |
| F Matthew Highmore elected free agency. | ||
6/30/25 | ![]() Cole Reinhardt LW | F Cole Reinhardt elected free agency. |
| F Cole Reinhardt elected free agency. | ||
6/30/25 | ![]() Tristen Robins C | F Tristen Robins elected free agency. |
| F Tristen Robins elected free agency. | ||