Document Number: 1233402 Version: 3

Securities and Exchange Commission “SEC” amending the April 25, 2016 announcement regarding the Agreement and Plan of Merger the “Merger Agreement” with Stemcentrx, Inc., a

AbbVie makes available free of charge on its website its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section 16

AbbVie makes available free of charge on its website its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section 16

AbbVie makes available free of charge on its website, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section

AbbVie makes available free of charge on its website, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section

AbbVie makes available free of charge on its website, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section

AbbVie makes available free of charge on its website, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section

AbbVie makes available free of charge on its website, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, reports filed pursuant to Section