Shareholder investigation: halper sadeh llp investigates srra, atrs, obnk

New york , april 13, 2022 /prnewswire/ -- halper sadeh llp, an investor rights law firm, is investigating the following companies for potential violations of the federal securities laws and/or breaches of fiduciary duties to shareholders relating to: sierra oncology , inc. (nasdaq: srra)'s sale to glaxosmithkline plc for $55.00 per share in cash. if you are a sierra oncology shareholder, click here to learn more about your rights and options.
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