NEW YORK, Nov. 01, 2019 (GLOBE NEWSWIRE) -- Halper Sadeh LLP, a global investor rights law firm, continues to investigate the following companies:

Fibrocell Science, Inc. (NASDAQ: FCSC)
The investigation concerns whether Fibrocell and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders in connection with the proposed sale of Fibrocell to Castle Creek Pharmaceutical Holdings, Inc. for $3.00 per share. If you are a Fibrocell shareholder and would like to learn more about your legal rights and options, please visit: https://halpersadeh.com/actions/fibrocell-science-inc-ucfc-merger-stock-castle-creek/.

Proteon Therapeutics, Inc. (NASDAQ: PRTO)
The investigation concerns whether Proteon and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders in connection with the proposed merger between Proteon and ArTara Therapeutics, Inc. in an all-stock transaction. If you are a Proteon shareholder and would like to learn more about your legal rights and options, please visit: https://halpersadeh.com/actions/proteon-therapeutics-inc-prto-stock-merger-artara-therapeutics/.

Arotech Corporation (NASDAQ: ARTX)
The investigation concerns whether Arotech and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders in connection with the proposed sale of Arotech to an affiliate of Greenbriar Equity Group, L.P. for $3.00 per share. If you are an Arotech shareholder and would like to learn more about your legal rights and options, please visit: https://halpersadeh.com/actions/arotech-corporation-artx-stock-merger-greenbriar-equity-group/.

Roan Resources, Inc. (NYSE: ROAN)
The investigation concerns whether Roan and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders in connection with the proposed sale of Roan to Citizen Energy Operating, LLC for $1.52 per share. If you are a Roan shareholder and would like to learn more about your legal rights and options, please visit: https://halpersadeh.com/actions/roan-resources-inc-stock-merger-citizen-energy/.

On behalf of shareholders of these companies, Halper Sadeh LLP may seek increased consideration, additional disclosures and information concerning the proposed transaction, or other relief and benefits.

Shareholders are encouraged to contact the firm free of charge to discuss their legal rights and options. Please call Daniel Sadeh or Zachary Halper at (212) 763-0060 or email sadeh@halpersadeh.com or zhalper@halpersadeh.com.

Halper Sadeh LLP represents investors all over the world who have fallen victim to securities fraud and corporate misconduct. Our attorneys have been instrumental in implementing corporate reforms and recovering millions of dollars on behalf of defrauded investors.

Attorney Advertising. Prior results do not guarantee a similar outcome.

Contact Information:
Halper Sadeh LLP
Daniel Sadeh, Esq.
Zachary Halper, Esq.
(212) 763-0060
sadeh@halpersadeh.com
zhalper@halpersadeh.com
https://www.halpersadeh.com