WASHINGTON (AP) - The brokerage industry's self-policing organization on Tuesday said it fined a unit of Goldman Sachs Group Inc. $1 million for concealing sales of IPO shares from an SEC-approved tracking system.

The National Association of Securities Dealers said Spear, Leeds & Kellogg LP, which Goldman Sachs acquired in late 2000, hid sales of securities in initial public offerings from the Depositary Trust Corp. from August 1997 through January 2001.