The following are the M&A deals, rumors and chatter circulating on Wall Street for Friday, May 19 through Sunday, May 21, 2017.

Vistra Energy in Preliminary Takeover Talks with Dynegy

The Rumor:

Vistra Energy Corp. has approached Dynegy Inc. (NYSE: DYN), according to sources as reported by the Wall Street Journal late Thursday. The discussions are in a preliminary stage, the sources said.

Dynegy closed at $9.12, up $1.86 or more than 25 percent.

FTC Commissioners Said to be Split on Antitrust Review of Walgreen-Rite Aid Deal

The Rumor:

Shares of Rite Aid Corporation (NYSE: RAD) rose as high as $3.65 in the premarket on Friday, as CTFN reported that there may be a split vote among FTC commissioners reviewing the proposed acquisition of Rite Aid by Walgreens Boots Alliance Inc (NASDAQ: WBA). A former Department of Justice Official was cited in the report.

The New York Post reported last week that the Federal Trade Commission had stepped up its scrutiny of the merger, sending out requests for additional information from Walgreen vendors and competitors.

Rite Aid closed at $3.46, up $0.03.

Huntsman, Clariant Near Deal to Merge in All-Stock Transaction

The Rumor:

Huntsman Corporation (NYSE: HUN) and Switzerland’s Clariant AG (OTC: CLZNY) are near reaching a deal to merge in an all-stock transaction, according to a report from the Wall Street Journal on Sunday. The deal could be announced on Monday, sources said. Clariant shareholders would own about 52% of the merged company, with Huntsman owning the rest, the sources said.

Huntsman closed at $26.71, up $0.87.