American International Group Inc.: Lloyd Bentsen, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 2,260 common.

Pei Yuan Chia, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 1,224 common.

Marshall Cohen, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 2,025 common.

Barber B. Conable, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 5,175 common.

Martin S. Feldstein, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly and indirectly holds 12,343 common.

Axel I. Freudmann, vp, exercised an option for 797 shares of common at $21.38 each on Nov. 8, and now directly and indirectly holds 5,524 common.

Carla Anderson Hills, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly and indirectly holds 3,086 common.

Frank J. Hoenemeyer, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 13,139 common.

Dean P. Phypers, director, purchased 112 shares of common at $114.25 each on Dec. 2, and now directly holds 9,369 common.

AIG stock closed at $108.50 a share on Jan. 3.

Berkshire Hathaway Inc.: Malcolm Greene Chace, director, indirectly sold 570 shares of class A common at $32,800 each from Nov. 13 to Nov. 26, and now directly and/or indirectly hold 501 class A common and 20 class B common.

Berkshire Hathaway stock closed at $33,700 a share on Jan. 3.

Chubb Corp.: Doublas A. Batting, vp, exercised an option for 2,100 shares of common at $15.11 each on Nov. 27. To cover expenses of the transaction Mr. Batting turned in 591 of them for $53.69 each on Nov. 27 and now directly and indirectly holds 13,919 common.

Randell G. Craig, vp, exercised an option for 8,095 shares of common between $33.38 and $41.78 each on Nov. 21. To cover expenses of the transaction Mr. Craig turned in 5,480 of them for $54.06 each on Nov. 21 and now directly and indirectly holds 10,671 common.

Robert P. Crawford, vp, indirectly sold 800 shares of common at $51.00 each on Nov. 8, and now directly and indirectly holds 30,040 common.

David S. Fowler, vp, exercised an option for 4,095 shares of common at $17.50 each on Nov. 8. To cover expenses of the transaction Mr. Fowler turned in 1,400 of them for $51.19 each on Nov. 8 and now directly and indirectly holds 27,996 common.

Donn H. Norton, vp, sold 1,44 shares of common at $49.88 each on Nov. 1, and now directly and indirectly holds 10,392 common.

Chubb stock closed at $56 a share on Jan. 3.

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.