After-Hours Buzz: GS, RATE, WDFC & More

Check out which companies are making headlines after the bell Monday:

Goldman Sachs - The financial giant expanded its board to 11 members, adding Adebaya Ogunlesi, managing partner and chairman of Global Infrastructure Partners. Shares edged higher, extending gains from the regular session. Goldman Sachs is scheduled to post earnings Tuesday morning. (Click here for after-hours quote.)

(Read More: Stocks End Near Session Highs; Citi Jumps 5% )

Yahoo - The Internet company named Henrique de Castro as its new COO. De Castro was most recently vice president of Google's worldwide Partner Business Solutions group. (Click here for after-hours quote.)

WD-40 - The household-product maker posted earnings of 56 cents a share on sales of $85 million. Analysts expected the company to post earnings of 70 cents a share on revenue of $94 million. In addition, the company's full-year 2013 revenue guidance came in at the low end of expectations. Shares tumbled in extended-hours trading. (Click here for after-hours quote.)

Bankrate - The consumer financial-services company announced that its third-quarter results will not meet Wall Street estimates. Shares plunged in after-hours trading, extending losses after hitting an all-time low in regular hours trading. (Click here for after-hours quote.)

Microchip - The chipmaker lowered its revenue guidance for the second quarter, citing weak macroeconomic conditions, sending shares lower in extended-hours trading. (Click here for after-hours quote.)

Bridgepoint Education - The for-profit education company said the U.S. Department of Justice was investigating the compensation of its admissions personnel. Shares slumped in extended-hours trading. (Click here for after-hours quote.)

Thor Industries - The RV maker announced CFO Christian Farman has left the company to pursue other opportunities. Colleen Zuhl will serve as the firm's interim CFO. (Click here for after-hours quote.)

Illinois Tool Works - The manufacturing conglomerate promoted Scott Santi to President and COO. Santi will also serve as acting CEO as David Spear takes a health-related leave. (Click here for after-hours quote.)

Walter Investment Management - The business-solutions provider announced a secondary offering of 4.5 million shares of common stock and an offering of $265 million in convertible senior subordinated notes due in 2019. (Click here for after-hours quote.)

(Read More: CNBC's Market Insider Blog )

—By CNBC's JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)

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