NEW YORK, NY / ACCESSWIRE / October 15, 2021 / Halper Sadeh LLP, a global investor rights law firm, announces it is investigating the following companies:

Columbia Banking System, Inc. (NASDAQ: COLB) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its merger with Umpqua Holdings Corporation. Under the terms of the agreement, Umpqua shareholders will receive 0.5958 of a share of Columbia stock for each Umpqua share they own. Upon completion of the transaction, Columbia shareholders will own approximately 38% of the combined company. If you are a Columbia shareholder, click here to learn more about your rights and options.

Aspen Technology, Inc. (NASDAQ: AZPN) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its merger with certain of Emerson Electric Co.'s industrial software businesses. Under the terms of the agreement, Aspen shareholders will receive approximately $87.00 per share in cash and 0.42 shares of common stock of the combined company for each share of Aspen common stock they own. If you are an Aspen shareholder, click here to learn more about your rights and options.

Acceleron Pharma Inc. (NASDAQ: XLRN) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its sale to Merck & Co., Inc. for $180.00 per share in cash. If you are an Acceleron shareholder, click here to learn more about your rights and options.

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.

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Contact Information:
Halper Sadeh LLP
Daniel Sadeh, Esq.
Zachary Halper, Esq.
(212) 763-0060

sadeh@halpersadeh.com

zhalper@halpersadeh.com

https://www.halpersadeh.com

SOURCE: Halper Sadeh LLP