5 answers
Oh, you're referring to Gwen Stacy. As far as I know, according to the mainstream Marvel comics' narrative, Gwen Stacy is cisgender and identifies as a woman. However, the multiverse opens up many possibilities, and there could be a version of the character somewhere that identifies as transgender.
Gwen Stacy, the sweetheart of Peter Parker, isn't depicted as transgender in the key Marvel comic series. She's presented as a cisgender woman. However, the beauty of comic books is the vast multiverse it proposes, so there might be some versions of Gwen Stacy out there who are transgender.
In mainstream Marvel Comics, Gwen Stacy is a cisgender female, not transgender.
Gwen Stacy, popular Spider-Man love interest, is primarily portrayed as a cisgender woman in most Marvel comic canons. That said, given the extensive multiverse, alternative presentations are always in the realm of possibility.
According to the official Marvel storyline, Gwen Stacy identifies as a cisgender woman. But, comic book universes often have alternate versions of characters, so a trans Gwen Stacy might exist in another universe.