Lifshitz Law Firm, P.C. Announces Investigation of Pfenex Inc. (NYSE: PFNX), Proteostasis Therapeutics, Inc. (NASDAQ: PTI), Rosetta Stone Inc. (NYSE:RST) and Yintech Investment Holdings Limited (NASDAQ: YIN)

NEW YORK, Sept. 16, 2020 (GLOBE NEWSWIRE) --

Pfenex Inc. PFNX

Lifshitz Law Firm, P.C. announces investigation into possible breach of fiduciary duties in connection with the sale of PFNX to Ligand Pharmaceuticals Incorporated.

If you are a PFNX investor, and would like additional information about our investigation, please complete the Information Request Form or contact Joshua Lifshitz, Esq. by telephone at (516)493-9780 or e-mail at info@jlclasslaw.com.

Proteostasis Therapeutics, Inc. PTI

Lifshitz Law Firm, P.C. announces investigation into possible breach of fiduciary duties in connection with the merger of PTI with Yumanity Therapeutics.

If you are a PTI investor, and would like additional information about our investigation, please complete the Information Request Form or contact Joshua Lifshitz, Esq. by telephone at (516)493-9780 or e-mail at info@jlclasslaw.com.

Rosetta Stone Inc. RST

Lifshitz Law Firm, P.C. announces investigation into possible breach of fiduciary duties in connection with the sale of RST to Cambium Learning Group for $30 per share.

If you are a RST investor, and would like additional information about our investigation, please complete the Information Request Form or contact Joshua Lifshitz, Esq. by telephone at (516)493-9780 or e-mail at info@jlclasslaw.com.

Yintech Investment Holdings Limited YIN

Lifshitz Law Firm, P.C. announces investigation into possible breach of fiduciary duties in connection with the sale of YIN to members of YIN management.

If you are a YIN investor, and would like additional information about our investigation, please complete the Information Request Form or contact Joshua Lifshitz, Esq. by telephone at (516)493-9780 or e-mail at info@jlclasslaw.com.

ATTORNEY ADVERTISING.© 2020 Lifshitz Law Firm, P.C.  The law firm responsible for this advertisement is Lifshitz Law Firm, P.C., 821 Franklin Avenue, Suite 209, Garden City, New York 11530, Tel: (516)493-9780.  Prior results do not guarantee or predict a similar outcome with respect to any future matter.

Contact:

Joshua M. Lifshitz, Esq.
Lifshitz Law Firm, P.C.
Phone:  516-493-9780
Facsimile: 516-280-7376
Email: info@jlclasslaw.com