RealD Inc. late Monday priced a secondary offering of 7.82 million shares being sold by insiders and other existing shareholders at a lower-than-current-market-price of $27.75.

The Los Angeles developer of 3-D movie projection technology, which raised $200 million of its own in a July initial public offering, won’t be getting any proceeds from this sale. The selling stockholders are expected to grant underwriters a 30-day over-allotments option to purchase an additional 1.17 million shares if necessary, the company said.

The secondary offering, first announced Nov. 23, is being managed by J.P. Morgan Securities LLC, Piper Jaffray & Co., William Blair & Co. L.L.C., Stifel Nicolaus Weisel and BMO Capital Markets Corp.

Shares were up 6 cents, or less than 1 percent, to $28.25 in midday trading on the New York Stock Exchange.