Tax on international fund transfer

Hi, I have a few questions regarding tax on international fund transfers. For your information, both my husband and I are both China citizens, nonresident aliens. I am wondering if I should file any report or pay tax on the following scenarios.

1) I transfer fund from my US account to my own account in Hong Kong
2) I transfer fund from my US account to my husband's account in Hong Kong
3) I transfer fund from my US account to my parent(China citizen)'s  account in Hong Kong
4) What if I transfer fund from my US account to my husband's US account?

Thank you for your time.