ARCT ARCTURUS THERAPEUTICS HOLDINGS INC Investments/Divestments 8-K Filing 2023 - Amendment Agreement with Cystic Fibrosis Foundation Arcturus Therapeutics Holdings Inc. entered into an amendment to its Development Program Letter Agreement with the Cystic Fibrosis Foundation, increasing the Amount of Award and modifying royalty rates and payment calculations.Get access to all SEC 8-K filings of the ARCTURUS THERAPEUTICS HOLDINGS INC