well he was not part of the executive orders stack of the first day in office. the only pardons trump done was for those imprisoned or found guilty of the jan 2021 capital raid/riot
As far as I know, Republicans gave Trump a list of nearly 200 executive orders on his first day in office and he still hasn't signed them all. According to David Bailey, CEO of Bitcoin Magazine, the crypto related executive orders are still on the list but in order and I guess Ross Ulbricht is most likely in the crypto category. So until the 200 executive orders are fully released, we can't confirm that Ross Ulbricht was not pardoned by Trump.
https://x.com/DavidFBailey/status/1881573829396586603