Ted Donato trades
| Anaheim Ducks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Ted Donato | June 18, 1999 | Patrick Lalime |  |
| rights to Antti-Jussi Niemi | ||||
| New York Islanders acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 1999 4th round pick (#123-Preston Mizzi) | March 20, 1999 | Ted Donato | |
| Boston Bruins acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Ken Belanger | November 7, 1998 | Ted Donato | |