Alteva, Inc. (NYSEMKT:ALTV) a premier provider of hosted Unified-Communications-as-a-Service, (“UCaaS“), announced today that its Board of Directors has appointed board member Brian J. Kelley as its Interim Chief Executive Officer (CEO), effective immediately. The Special Committee of the Board is in the process of conducting a search for a permanent CEO. Alteva Inc (NYSEMKT:ALTV) stock performance was 6.10% in last session and finished the day at $6.96 . Average volume of the stock remained million shares 30.85. The beta of the stock remained 0.43. Alteva Inc (NYSEMKT:ALTV) insider ownership is 4.60%.

BlackBerry Ltd (NASDAQ:BBRY) has reported that the quarterly results for the financial year 2015 for the first quarter would be reported on June 19, 2014. The company made an announcement very recently regarding the fact that the pre-order for the new BlackBerry model Z3 has been opened up for Indonesian customers. BlackBerry Ltd (NASDAQ:BBRY) rose 0.69 percent to $7.34 on volume of million shares. The intra-day range of the stock was $7.25 to $7.51. BlackBerry Ltd (NASDAQ:BBRY) has a market capitalization of $3.86 billion.

Rofin-Sinar Technologies Inc. (NASDAQ:RSTI) updated its third quarter earnings guidance on Thursday. The company provided EPS guidance of $0.20-0.24 for the period, compared to the Thomson Reuters consensus EPS estimate of $0.23, AR Network reports. The company issued revenue guidance of $132-137 million, compared to the consensus revenue estimate of $136.73 million. Rofin-Sinar Technologies (NASDAQ:RSTI)’s stock on May 8, 2014 reported an increase of 6.34% to the closing price of $23.47. Its fifty two weeks range is $21.01 -$27.76. The total market capitalization recorded $661.25 million. In its share capital, Rofin-Sinar Technologies (NASDAQ:RSTI) has 28.17 million outstanding shares.

Criteo SA (ADR) (NASDAQ:CRTO) issued its quarterly earnings data on Tuesday. The company reported $0.06 EPS for the quarter, missing the Thomson Reuters consensus estimate of $0.09 by $0.04, Analyst Ratings Network reports. The company had revenue of $152.50 million for the quarter, compared to the consensus estimate of $56.70 million. On Thursday, shares of Criteo SA (ADR) (NASDAQ:CRTO) advanced 6.46% to close the day at $29.02. Company return on investment (ROI) is 13.60% and its monthly performance is recorded as -22.11%. Quarterly revenue growth is -13.63%.