You can always view transaction history from past leagues on Sleeper.
Viewing transaction history on the mobile app
On the mobile app, you’ll have to go first to your specific league from that year.
Go to the League Settings of your specific league, scroll to the bottom, and tap “Previous Leagues”.
Select your desired year of the league. Then, go to the League tab and scroll down toward the bottom to Recent Activity and select View All.
A window will pop up with all of the transactions. You can filter and sort by trades, waivers, etc.
Viewing transaction history on the web app
Go to the Settings tab of your specific league and click on “Previous Leagues”.
Select your desired year of the league. Then, go to the League tab and scroll down toward the bottom to Recent Activity and select View All.
A window will pop up with all of the transactions. You can filter and sort by trades, waivers, etc.