Summary of ABBOTT LABORATORIES

Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Financial St

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Changes in Fiscal Year

On February 20, 2009, Abbott's Board of Directors amended the first sentence of Article III, Section 2 of Abbott's by-laws to provide that Abbott's Board of Directors shall consist of thirteen persons, effective as of April 24, 2009. Abbott's by-laws previously provided that the Board of Directors consisted of fourteen persons.

On February 20, 2009, Abbott's Board of Directors also amended Article IV,
Section 1 of Abbott's by-laws to provide that each committee of Abbott's Board of Directors shall have one or more members, effective as of February 20, 2009. Abbott's by-laws previously required each committee of the Board of Directors to have three or more members.

Item 9.01 Financial Statements and Exhibits

Exhibit No.                                  Exhibit

3.1           By-Laws of Abbott Laboratories, as amended and restated effective as
              of April 24, 2009.

3.2           By-Laws of Abbott Laboratories, as amended and restated effective as
              of February 20, 2009.

10.1          Form of Performance Restricted Stock Agreement for an award of
              performance restricted stock under Section 10 of the Abbott
              Laboratories 1996 Incentive Stock Program granted on or after
              February 20, 2009.

10.2       Form of Performance Restricted Stock Agreement for an award of
           performance restricted stock under the Abbott Laboratories 1996
           Incentive Stock Program granted on or after February 20, 2009.

10.3       Form of Non-Qualified Stock Option Agreement for an award of
           non-qualified stock options under the Abbott Laboratories 1996
           Incentive Stock Program granted on or after February 20, 2009.

10.4       Form of Non-Qualified Replacement Stock Option Agreement for an award
           of non-qualified replacement stock options under the Abbott
           Laboratories 1996 Incentive Stock Program granted on or after
           February 20, 2009.

10.5       Form of Restricted Stock Agreement for an award of restricted stock
           under the Abbott Laboratories 1996 Incentive Stock Program granted on
           or after February 20, 2009 (ratable vesting).

10.6       Form of Restricted Stock Agreement for an award of restricted stock
           under the Abbott Laboratories 1996 Incentive Stock Program granted on
           or after February 20, 2009 (cliff vesting).

10.7       Form of Restricted Stock Unit Agreement for an award of restricted
           stock units under the Abbott Laboratories 1996 Incentive Stock Program
           granted on or after February 20, 2009.

10.8       Form of Non-Employee Director Non-Qualified Replacement Stock Option
           Agreement for an award of non-qualified replacement stock options
           under the Abbott Laboratories 1996 Incentive Stock Program granted on
           or after February 20, 2009.