INSIDER TRADING

American International Group Inc.: Ernest Edward Stempel, officer, exercised an option for 137,403 shares of common between $17.37 and $62.17 each on July 31, 1997, and sold 46,300 shares between $106.00 and $106.44 each on July 31, 1997, and now holds directly and indirectly 15,695,859 common.

AIG stock closed at $95.63 a share on Aug. 15.

NAC Re Corp.: Robert A. Belfer, director, indirectly sold 6,000 shares of common at $48.31 each on July 31, 1997, and now directly and indirectly holds 1,058,832 common.

NAC Re stock closed at $48.13 a share on Aug. 15.

Transamerica Corp.: Richard A. Finn, vp, exercised an option for 46,700 shares of common between $33.19 and $39.75 each from July 22 to July 23, 1997. To cover expenses of the transaction, Mr. Finn turned in 28,684 of them for $92.97 each from July 22 to July 23, 1997, and now sold 18,016 shares in the open market at $93.00 each from July 22 to July 23, 1997. He now directly and indirectly holds 64,824 common.

Sam L. Ginn, director, exercised an option for 1,000 shares of common at $48.25 each on July 28, 1997. To cover expenses of the transaction, Mr. Ginn turned in 492 of them for $98.06 each on July 28, 1997, and now directly and indirectly holds 4,255 common.

Transamerica stock closed at $96.38 a share on Aug. 18.

Insider Trading, compiled by Invest/Net Trading Group Inc. of Fort Lauderdale, Fla., from reports filed with the Securities and Exchange Commission, tracks stock sales and purchases by insurance industry directors and officers. The column is distributed by Tribune Media Services Inc.