Benzinga's Weekend M&A Chatter

The following are the M&A deals, rumors and chatter circulating on Wall Street for Friday June 3 through Sunday June 5, 2016:

:

Twitter

met with Yahoo

management, including CEO Marissa Mayer, to discuss a potential merger, according to sources as reported by the

on Friday. The meeting is said to have taken place several weeks ago, but Twitter decided to not to proceed with the bidding process. Yahoo and Twitter declined comment. Verizon

is still seen as the front runner to acquire Yahoo's core internet business, with AT&T

and Dan Gilber also potential buyers. Yahoo fell 15% Friday to close at $36.60.

:

McKesson Corp.

is considering separation its information-technology business, according to sources as reported by the

late Thursday. The unit is said to be valued at more than $5 billion. McKesson closed at $186.46 on Friday, down $1.33.

:

AstraZeneca

is said to be among potential bidders for Acadia Pharmaceuticals, according to a report from the UK

late Friday. Sources say Acadia investors would not accept less than $60 per share. Other potential buyers include Teva Pharmaceutical Industries

, Biogen

and Allergan

, the report said. Acadia closed at $36.07 on Friday and traded up 3.5% after-hours.

:

Monsanto

shares spiked higher Friday, on a tweet from Fox Business' Charlie Gasparino indicating that the Bayer

Chariman Werner Baumann held a secret meeting on Thursday, to discuss the bid to acquire the U.S. agricultural company. Sources who attended the meeting said Baumann is willing to increase the offer for Monsanto. Bayer offered $122 per share for Monanto last month, but shares have remained around $111 due in part to regulatory concerns and pressure from Bayer shareholders, who have been less than enthusiastic regarding the bid. Monsanto closed at $111.00 on Friday, up $0.64.