Stephen A. Kaufman offers a transcription of the Aramaic text of Targum Neofiti that includes a paraphrase of Genesis 4:15.
Stephen A. Kaufman, ed., Targum Neofiti to the Pentateuch. The Jewish Literary Aramaic version of the Pentateuch from the files of the Comprehensive Aramaic Lexicon Project (CAL) (Hebrew Union College-Jewish Institute of Religion, Cincinnati, USA, 2005), Genesis 4:15. Electronic edition, accessed December 21, 2022
ושוי ייי לקין סימן דלא יקטול יתיה כל מן די יארע יתיה׃