H4 to H1B change of status - subject to cap?

[KKNDan]

Hi,
Have a question regarding H4 to H1B change of status.
I was working on H1B visa for about 3 yrs, at the time of renewal at the end of 3 years my H1B visa was rejected. I changed status to H4. It has been just more than 3 yrs that I am on H4, now I am seeking an employer who can file H1B visa.

Question:
Would my application be subject to cap or would it be cap exempt?

Please let me know.
Thanks for your help.