(marketscreener.com) Expiration of HSR Waiting Period On June 17, 2021, the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended , expired at 11:59 p.m., Eastern time, with respect to the transactions contemplated by the previously announced merger of Acorn Merger Sub, Inc., a...https://www.marketscreener.com/quote/stock/CHIASMA-INC-23041141/news/Chiasma-nbsp-Expiration-of-HSR-Waiting-Period-Form-8-K-35673140/?utm_medium=RSS&utm_content=20210622