HEADLINE STOCKS-Some U.S. stocks on the move on Sept. 1

(Updates to after the open, adds Novavax, America's Car-Mart, Builders, Gander, Icagen, Sotheby's)

NEW YORK, Sept 1 (Reuters) - Some U.S. stocks on the move on Tuesday:

NOVAVAX INC (NVAX.O), $7.31, up 21 pct

The company said its seasonal flu vaccine candidate was well-tolerated in a midstage trial. [ID:nBNG319839]

ICAGEN INC (ICGN.O), $1.40, up 48 pct

The company said a midstage study of its experimental treatment for allergic asthma showed the drug reduced the asthmatic response of patients to inhaled allergen. [ID:nBNG501114]

SOTHEBY'S (BID.N), $15.89, up 0.9 pct

The company entered into a three-year $200 million credit agreement with lenders. [ID:nBNG491895]

AMERICA'S CAR-MART INC (CRMT.O), $22.83, up 11 pct