NEW YORK (Reuters) ? C.V. Starr & Co., a firm run by former American International Group Inc. chief executive Maurice (Hank) Greenberg, yesterday said it completed a tender offer for shares held by AIG executives early.

Starr said it ended the tender before the scheduled January 17 date because all eligible shareholders tendered their shares.

AIG had expected most or all of its executives holding Starr shares to take advantage of the offer.

The tender marks a further separation between New York-based AIG and Greenberg, who was forced to retire from the world?s largest insurer last spring amid federal and state investigations into the company?s accounting practices.

C.V. Starr said shareholders tendered 5,125 voting shares, or 16.2 percent of those outstanding, and 1,000 nonvoting shares, or 17.4 percent.

Combined with an earlier tender period, shareholders tendered 51 percent of voting and 95.7 percent of nonvoting shares, C.V. Starr said.

According to AIG?s proxy statement last June 27, AIG executives and directors, including Greenberg and new chief executive Martin Sullivan, as of March 31 owned 74.87 percent of C.V. Starr?s common stock and more than half its preferred stock.

Sullivan had owned 5.35 percent of the common stock, while AIG chief operating officer Donald Kanak owned 4.28 percent. Greenberg owned 17.11 percent, the largest listed individual stake, and former AIG chief financial officer Howard Smith owned 8.56 percent.

C.V. Starr, named after AIG founder Cornelius Vander Starr, is an insurance broker and underwriter that recently owned more than $3.1 billion of AIG shares.

AIG is suing Greenberg for control of about $18 billion of AIG shares owned by Bermuda-based Starr International Co., a private company he heads. New York Attorney General Eliot Spitzer, meanwhile, accused AIG, Greenberg and Smith in a May, 2005 lawsuit of accounting fraud.

AIG shares fell 33 cents yesterday to close at $69.78 on the New York Stock Exchange.