WPP PLC, London, added three equity investment options to the its 401(k) plan lineup in 2018, the company disclosed in its 11-K filing with the SEC. The plan added the T. Rowe Price Institutional Mid Cap Equity Growth Fund, an active domestic midcap equity fund managed by T. Rowe Price Group ; the Wasatch Core Growth Fund, an active domestic small-cap growth equity fund managed by Wasatch Advisors ; and the Vanguard Equity Income Fund, an active domestic large-cap value equity fund managed by Vanguard Group. The funds had $22 million, $13 million and $1 million, respectively, in assets in the plan as of Dec. 31, according to the June 28 filing.