Month: September 2009

Airgas Added to S&P 500 Index

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RADNOR, PA – September 8, 2009 — Airgas, Inc. (NYSE: ARG) today announced it has been added to the S&P 500 after the close of trading. Airgas is the largest U.S. distributor of industrial, medical, and specialty gases, and welding, safety, and related products. “It is an honor to be included in this important index… Read more »