Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:
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Zep Inc., up $3.28 to $20.37
The maker of cleaning chemicals will be taken private in a $692 million sale to private equity firm New Mountain Capital.
Rite Aid Corp., up 18 cents to $8.87
The drugstore chain posted quarterly profit and revenue that topped Wall Street expecations.
Emerge Energy Services LP, down $1.42 to $50.24
The energy industry services company will no longer pursue construction of a silica sand processing facility in Wisconsin.
Triumph Group Inc., up $5.07 to $65.06
The aircraft structures and components company announced that Richard C. Ill replaced Jeffry D. Frisby as president and CEO.
Perrigo Co., up $30.29 to $195
Mylan offered to buy the rival drugmaker for almost $29 billion in a deal that would create one of the world's largest makers of generic and over-the-counter medicines.
Regulus Therapeutics Inc., up $1.99 to $17.94
The biotechnology company said AstraZeneca selected one of its products for development as part of a partnership.
Second Sight Medical Products Inc., up $1.38 to $14
The maker of implantable visual prosthetics said it successfully implanted a mechanical model of potential prosthetic in an animal study.
JD.com Inc., up $1.66 to $32.66
The Chinese online marketplace said clothing and apparel company UNIQLO will open a flagship store on its marketplace platform.