Benzinga's M&A Chatter for Tuesday October 7, 2014

The following are the M&A deals, rumors and chatter circulating on Wall Street for Tuesday October 7, 2014:

:

Shares of CF Industries Holdings

rose Tuesday on a report from

that Norway's Yara

was continuing merger talks with CF and had fired CEO Joergen Ole Haslestad, saying he was unsuitable to lead the merger talks. Yara now says those talks will continue with CFO Torgeir Kvidal, who will become acting CEO. CF Industries confirmed on September 23 that they were in merger talks with Yara. CF Industries closed Tuesday at $282.76, a gain of 3.5%.

:

Shares of Allergan Inc.

surged higher after-hours, Tuesday on a report from

that Valeant Pharmaceuticals International Inc.

and Pershing Square'a Bill Ackman are planning to boost their offer for Allergan by $15 per share, according to people familiar with the matter. The revised offer would be about 8% higher, or about $191.00 per share, based on Valeant's closing price on Tuesday. Allergan rejected a bid in June from Valeant, consisting of $72 in cash and 0.83 Valeant shares for each Allergan share. Earlier on Tuesday,

reported that Actavis plc

could make a new attempt at a deal for Allergan, according to sources, who said Allergan might accept a bid of $200.00 per share or more. Allergan closed Tuesday at $186.20, and traded as high as $193.05, after-hours.

:

Glencore

said Tuesday, that in July 2014 it made an informal enquiry by telephone call to Rio Tinto

, to gauge interest in a potential merger between the two companies. Rio Tinto responded that it was not interested in pursuing these discussions. Glencore confirmed Tuesday that it is no longer considering a merger transaction with Rio Tinto. Rio Tinto's Board confirmed on Monday that no discussions with Glencore were taking place.

had reported Monday that Glencore was preparing for a possible merger. Rio Tinto shares closed Tuesday at $49.38, a loss of 4%.