Mike Napoli was traded 3 times:

Acquired: $0.00 - Sent: $0.00 = $0.00
Acquired: 208 G - Sent: 200 G = 8 Games
Acquired: 791 PA - Sent: 733 PA = 58 Plate Appearances
Acquired: 0.0 - Sent: 0.0 = 0.0 Innings Pitched
Acquired: $0.00 - Sent: $0.00 = $0.00
Acquired: 58 G - Sent: 380 G = -322 Games
Acquired: 0 - Sent: 1425 = -1425 Plate Appearances
Acquired: 152.0 - Sent: 0.0 = 152.0 Innings Pitched
Acquired: $0.00 - Sent: $16,000,000.00 = $-16,000,000.00
Acquired: 0 G - Sent: 159 G = -159 Games
Acquired: 0 - Sent: 576 = -576 Plate Appearances
Acquired: 0 - Sent: 0.0 = 0.0 Innings Pitched
Transactions current as of 2021 season. See an issue with this player? Please report it.

Transaction and player information was obtained from Retrosheet.

View the site on Github.