We'll call the two larger targets assists due to the number of allied forces in the area at the time. However, saving Sharks is worth a full payment, as is the slaying of the Werewolf.
That all comes to 5 million credits:
Mr. Carson,
I can tell Magellan and Manchester from your recordings, but thank you for the clarification - the bounty is valid in either system anyway. One less Corsair in Dublin is also a pleasure.
Your two bounties:
Mr. Vatman,
You too appear to have brought in a few impressive bounties. Is that... the Argosax nearby in your second claim? Unusual to say the least.
Regardless, the payment should be with you already: