The Richardson family bought more stock.

Members of the founding family of Richardson-Vicks Inc., maker of Vicks anti-cold remedies, reported that they have raised their stake in the company to help fight off a takeover attempt by Unilever. In a filing with the Securities and Exchange Commission, the family said it now owns 36.2% of the firm, or 6.4 million common shares. Before the battle with Unilever, the Richardsons were thought to control about 7.3% of the company’s stock.