NEW YORK, NY / ACCESSWIRE / May 6, 2021 / Halper Sadeh LLP, a global investor rights law firm, announces it is investigating the following companies: W. R. Grace & Co. (NYSE:GRA) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its sale to Standard Industries Holdings Inc. for $70.00 per share in cash. If you are a W. R. Grace shareholder, click here to learn more about