IBM Contracts & Agreements

Confirmation of Termination Date Extension dated June 17, 2024 to $2,500,000,000 Three-Year Credit Agreement dated as of June 22, 2021 (as amended by Amendment No. 1 to Three-Year... (Filed With SEC on June 21, 2024)

Confirmation of Termination Date Extension dated June 17, 2024 to $7,500,000,000 Five-Year Credit Agreement dated as of June 22, 2021 (as amended by Amendment No. 1 to Five-Year... (Filed With SEC on June 21, 2024)

Amendment No (Filed With SEC on February 26, 2024)

Underwriting Agreement dated January 29, 2024 among IBM International Capital Pte. Ltd., International Business Machines Corporation and Merrill Lynch (Singapore) Pte. Ltd.,... (Filed With SEC on February 2, 2024)

Indenture dated as of February 2, 2024, between IBM International Capital Pte. Ltd., International Business Machines Corporation, as guarantor, and The Bank of New York Mellon, as... (Filed With SEC on February 2, 2024)

Form of 4.700% Note due 2026 (Filed With SEC on February 2, 2024)

Form of 4.600% Note due 2027 (Filed With SEC on February 2, 2024)

Form of 4.600% Note due 2029 (Filed With SEC on February 2, 2024)

Form of 4.750% Note due 2031 (Filed With SEC on February 2, 2024)

Form of 4.900% Note due 2034 (Filed With SEC on February 2, 2024)

Form of 5.250% Note due 2044 (Filed With SEC on February 2, 2024)

Form of 5.300% Note due 2054 (Filed With SEC on February 2, 2024)

Confirmation of Termination Date Extension dated June 15, 2023 to $2,500,000,000 Three-Year Credit Agreement dated as of June 22, 2021 (as amended by Amendment No. 1 to Three-Year... (Filed With SEC on June 16, 2023)

Confirmation of Termination Date Extension dated June 15, 2023 to $7,500,000,000 Five-Year Credit Agreement dated as of June 22, 2021 (as amended by Amendment No. 1 to Five-Year... (Filed With SEC on June 16, 2023)

Description of Securities Registered under Section 12 of the Exchange Act (Filed With SEC on February 28, 2023)

Forms of LTPP equity award agreements for (i) stock options, restricted stock, restricted stock units, cash-settled restricted stock units, SARS, and (ii) performance share units,... (Filed With SEC on February 28, 2023)

Amendment No. 2 to the Amended and Restated Deferred Compensation and Equity Award Plan, effective December 13, 2022 (Filed With SEC on February 28, 2023)

The IBM Excess 401(k) Plus Plan, a compensatory plan (formerly the IBM Executive Deferred Compensation Plan), as amended and restated through January 1, 2023 (Filed With SEC on February 28, 2023)

Form of Noncompetition Agreement (Filed With SEC on February 28, 2023)

Underwriting Agreement dated January 30, 2023 among International Business Machines Corporation and Barclays Bank PLC, Citigroup Global Markets Limited, Goldman Sachs & Co. LLC,... (Filed With SEC on February 3, 2023)

Underwriting Agreement dated January 30, 2023 among International Business Machines Corporation and Barclays Capital Inc., BofA Securities, Inc., Citigroup Global Markets Inc.,... (Filed With SEC on February 3, 2023)

Form of 3.375% Note due 2027 (Filed With SEC on February 3, 2023)

Form of 3.625% Note due 2031 (Filed With SEC on February 3, 2023)

Form of 3.750% Note due 2035 (Filed With SEC on February 3, 2023)

Form of 4.000% Note due 2043 (Filed With SEC on February 3, 2023)

Form of 4.875% Note due 2038 (Filed With SEC on February 3, 2023)

Form of 4.500% Note due 2026 (Filed With SEC on February 3, 2023)

Form of 4.500% Note due 2028 (Filed With SEC on February 3, 2023)

Form of 4.750% Note due 2033 (Filed With SEC on February 3, 2023)

Form of 5.100% Note due 2053 (Filed With SEC on February 3, 2023)

Underwriting Agreement dated July 20, 2022 among International Business Machines Corporation and BNP Paribas Securities Corp., J.P. Morgan Securities LLC, RBC Capital Markets,... (Filed With SEC on July 26, 2022)

Form of 4.000% Note due 2025 (Filed With SEC on July 26, 2022)

Form of 4.150% Note due 2027 (Filed With SEC on July 26, 2022)

Form of 4.400% Note due 2032 (Filed With SEC on July 26, 2022)

Form of 4.900% Note due 2052 (Filed With SEC on July 26, 2022)

Amendment No. 1 to Three-Year Credit Agreement dated as of June 30, 2022, among International Business Machines Corporation, the several banks and other financial institutions... (Filed With SEC on July 1, 2022)

Amendment No. 1 to Five-Year Credit Agreement dated as of June 30, 2022, among International Business Machines Corporation, the several banks and other financial institutions from... (Filed With SEC on July 1, 2022)

Description of Securities Registered under Section 12 of the Exchange Act (Filed With SEC on February 22, 2022)

Forms of LTPP equity award agreements for (i) stock options, restricted stock units, cash-settled restricted stock units, SARS, and (ii) performance share units, as well as the... (Filed With SEC on February 22, 2022)

Form of Noncompetition Agreement (Filed With SEC on February 22, 2022)

Letter Agreement, signed by Gary Cohn and IBM, dated December 24, 2020 (Filed With SEC on February 22, 2022)

Letter Agreement, signed by Gary Cohn, dated December 24, 2020 (Filed With SEC on February 22, 2022)

Underwriting Agreement dated February 2, 2022 among International Business Machines Corporation and Barclays Bank PLC, Citigroup Global Markets Limited, HSBC Bank plc, Merrill... (Filed With SEC on February 8, 2022)

Underwriting Agreement dated February 2, 2022 among International Business Machines Corporation and Barclays Capital Inc., BofA Securities, Inc., Citigroup Global Markets Inc.,... (Filed With SEC on February 8, 2022)

Form of 0.875% Note due 2030 (Filed With SEC on February 8, 2022)

Form of 1.250% Note due 2034 (Filed With SEC on February 8, 2022)

Form of 2.200% Note due 2027 (Filed With SEC on February 8, 2022)

Form of 2.720% Note due 2032 (Filed With SEC on February 8, 2022)

Form of 3.430% Note due 2052 (Filed With SEC on February 8, 2022)

Forms of LTPP equity award agreements for (i) stock options, restricted stock, restricted stock units, cash-settled restricted stock units, SARS, (ii) performance share units and... (Filed With SEC on July 27, 2021)

$2,500,000,000 Three-Year Credit Agreement, dated as of June 22, 2021, among International Business Machines Corporation, the Subsidiary Borrowers parties thereto, the several... (Filed With SEC on June 25, 2021)

$7,500,000,000 Five-Year Credit Agreement, dated as of June 22, 2021, among International Business Machines Corporation, the Subsidiary Borrowers parties thereto, the several... (Filed With SEC on June 25, 2021)

Form of LTPP equity award agreement for performance share units, effective January 1, 2021 (Filed With SEC on April 27, 2021)

Description of Securities Registered under Section 12 of the Exchange Act (Filed With SEC on February 23, 2021)

The IBM Excess 401(k)Plus Plan, a compensatory plan (formerly the IBM ExecutiveDeferred Compensation Plan), as amended and restated through January1, 2021 (Filed With SEC on February 23, 2021)

Form of Noncompetition Agreement (Filed With SEC on February 23, 2021)

Letter Agreement, signed by James Whitehurst and IBM, dated October 28, 2018 (Filed With SEC on February 23, 2021)

Letter Agreement, signed by James Whitehurst and IBM, dated December 12, 2019 (Filed With SEC on February 23, 2021)

Terms and Conditions of IBM LTPP Equity Awards, effective June 1, 2020 (Filed With SEC on July 28, 2020)

Amendment No. 10 to the IBM Excess 401(k) Plus Plan, a compensatory plan, dated as of April 13, 2020 (Filed With SEC on July 28, 2020)

$2,500,000,000 364-Day Credit Agreement dated as of July 2, 2020, among International Business Machines Corporation and IBM Credit LLC, as Borrowers, the several banks and other... (Filed With SEC on July 2, 2020)

First Amendment to the $2,500,000,000 Amended and Restated Three-Year Credit Agreement dated as of July 2, 2020, among International Business Machines Corporation and IBM Credit... (Filed With SEC on July 2, 2020)

First Amendment to the $10,250,000,000 Amended and Restated Five-Year Credit Agreement dated as of July 2, 2020, among International Business Machines Corporation, as the... (Filed With SEC on July 2, 2020)

Form of 1.700% Note due 2027 (Filed With SEC on May 6, 2020)

Form of 1.950% Note due 2030 (Filed With SEC on May 6, 2020)

Form of 2.850% Note due 2040 (Filed With SEC on May 6, 2020)

Form of 2.950% Note due 2050 (Filed With SEC on May 6, 2020)

Form of LTPP equity award agreement for performance share units and the terms and conditions of LTPP Equity Awards, effective March 2, 2020, in connection with the foregoing award... (Filed With SEC on April 28, 2020)

Form of LTPP equity award agreement for performance share units and the terms and conditions of LTPP Equity Awards, effective December 17, 2019, in connection with the foregoing... (Filed With SEC on February 25, 2020)

Formof Noncompetition Agreement (Filed With SEC on February 25, 2020)

Description of Securities Registered under Section 12 of the Exchange Act (Filed With SEC on February 25, 2020)

Form of 0.300% Note due 2028 (Filed With SEC on February 10, 2020)

Form of 0.650% Note due 2032 (Filed With SEC on February 10, 2020)

Form of 1.200% Note due 2040 (Filed With SEC on February 10, 2020)

Forms of LTPP equity award agreements for (i) stock options, restricted stock, restricted stock units, cash-settled restricted stock units, SARS and (ii) performance share units... (Filed With SEC on October 29, 2019)

Form of LTTP equity awards agreement for stock options, restricted stock, restricted stock units, cash-settled restricted stock units, and SARS, as well as the Terms and... (Filed With SEC on July 30, 2019)

Confirmation of Termination Date Extension to $2,500,000,000 Amended and Restated Three-Year Credit Agreement dated as of July 18, 2018, among International Business Machines... (Filed With SEC on July 19, 2019)

Confirmation of Termination Date Extension to $10,250,000,000 Amended and Restated Five-Year Credit Agreement dated as of July 18, 2018, among International Business Machines... (Filed With SEC on July 19, 2019)

$2,500,000,000 364-Day Credit Agreement dated as of July 18, 2019, among International Business Machines Corporation and IBM Credit LLC, as Borrowers, the several banks and other... (Filed With SEC on July 19, 2019)

Form of Floating Rate Note due 2021 (Filed With SEC on May 14, 2019)

Form of 2.800% Note due 2021 (Filed With SEC on May 14, 2019)

Form of 2.850% Note due 2022 (Filed With SEC on May 14, 2019)

Form of 3.000% Note due 2024 (Filed With SEC on May 14, 2019)

Form of 3.300% Note due 2026 (Filed With SEC on May 14, 2019)

Form of 3.500% Note due 2029 (Filed With SEC on May 14, 2019)

Form of 4.150% Note due 2039 (Filed With SEC on May 14, 2019)

Form of 4.250% Note due 2049 (Filed With SEC on May 14, 2019)

Letter Agreement, signed by Erich Clementi and IBM, effective as of April 30, 2019 (Filed With SEC on April 30, 2019)

Terms and Conditions of IBM LTPP Equity Awards, effective June 1, 2019 (Filed With SEC on April 30, 2019)

Amendment No. 9 to the IBM Excess 401(k) Plus Plan, a compensatory plan, dated as of December 18, 2018 (Filed With SEC on February 26, 2019)

Form of 0.375% Note due 2023 (Filed With SEC on January 30, 2019)

Form of 0.875% Note due 2025 (Filed With SEC on January 30, 2019)

Form of 1.250% Note due 2027 (Filed With SEC on January 30, 2019)

Form of 1.750% Note due 2031 (Filed With SEC on January 30, 2019)

Forms of equity award agreements for (i) stock options, restricted stock, restricted stock units, cash-settled restricted stock units, SARS, (ii) performance share units and (iii)... (Filed With SEC on October 30, 2018)

Form of Noncompetition Agreement (Filed With SEC on October 30, 2018)

Agreement and Plan of Merger, dated as of October 28, 2018, by and among IBM, Red Hat and Socrates Acquisition Corp (Filed With SEC on October 29, 2018)

Bridge Facility Commitment Letter, dated as of October 28, 2018, by and among IBM, JPMorgan Chase Bank, N.A, Goldman Sachs Bank USA and Goldman Sachs Lending Partners LLC (Filed With SEC on October 29, 2018)

Forms of LTTP equity award agreements for (i) stock options, restricted stock, restricted stock units, cash-settled restricted stock units, SARS, (ii) performance share units and... (Filed With SEC on July 31, 2018)

Form of LTPP equity award agreement for performance share units and Terms and Conditions of LTPP Equity Awards, effective June 1, 2018, in connection with the foregoing award... (Filed With SEC on April 24, 2018)

Amendment No. 1 to the Amended and Restated Deferred Compensation and Equity Award Plan, effective January 30, 2018 (Filed With SEC on February 27, 2018)

Amendment No. 8 to the IBM Excess 401(k) Plus Plan, a compensatory plan, dated as of December 31, 2017 (Filed With SEC on February 27, 2018)

Form of Noncompetition Agreement (Filed With SEC on February 27, 2018)

Indenture dated as of October 1, 1993 between IBM and The Bank of New York Mellon, (as successor to The Chase Manhattan Bank (National Association)) as Trustee (Filed With SEC on October 31, 2017)

First Supplemental Indenture to Indenture dated as of October 1, 1993 between IBM and The Bank of New York Mellon, (as successor to The Chase Manhattan Bank (National... (Filed With SEC on October 31, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION 0.950% Note due 2025 (Filed With SEC on May 22, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.500% Note due 2029 (Filed With SEC on May 22, 2017)

NONCOMPETITION AGREEMENT (Filed With SEC on February 28, 2017)

JPMORGAN CHASE BANK, N.A. (Filed With SEC on February 28, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION Floating Rate Note due 2020 (Filed With SEC on January 26, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.900% Note due 2020 (Filed With SEC on January 26, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION 2.500% Note due 2022 (Filed With SEC on January 26, 2017)

INTERNATIONAL BUSINESS MACHINES CORPORATION 3.300% Note due 2027 (Filed With SEC on January 26, 2017)

IBM TERMS AND CONDITIONS OF YOUR EQUITY AWARD: EFFECTIVE AUGUST 1, 2016 (Filed With SEC on July 26, 2016)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 7 Instrument of Amendment (Filed With SEC on July 26, 2016)

NONCOMPETITION AGREEMENT (Filed With SEC on July 26, 2016)

Terms and Conditions of Your Equity Award (Filed With SEC on April 26, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 0.500% Note due 2021 (Filed With SEC on March 4, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.125% Note due 2024 (Filed With SEC on March 4, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.750% Note due 2028 (Filed With SEC on March 4, 2016)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 6 Instrument of Amendment (Filed With SEC on February 23, 2016)

NONCOMPETITION AGREEMENT (Filed With SEC on February 23, 2016)

JPMORGAN CHASE BANK, N.A. 383 Madison Avenue New York, New York 10179 (Filed With SEC on February 23, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.800% Note due 2019 (Filed With SEC on February 18, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION Floating Rate Note due 2017 (Filed With SEC on February 18, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 2.250% Note due 2021 (Filed With SEC on February 18, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 3.450% Note due 2026 (Filed With SEC on February 18, 2016)

INTERNATIONAL BUSINESS MACHINES CORPORATION 4.700% Note due 2046 (Filed With SEC on February 18, 2016)

$900,000,000 INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities 2.875% Notes due 2022 UNDERWRITING AGREEMENT (Filed With SEC on November 6, 2015)

INTERNATIONAL BUSINESS MACHINES CORPORATION 2.875% Note due 2022 (Filed With SEC on November 6, 2015)

IBM SUPPLEMENTAL EXECUTIVE RETENTION PLAN (Effective as of January 1, 2009 with Amendments Adopted through December 2008) AMENDMENT No. 1 Instrument of Amendment (Filed With SEC on February 24, 2015)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 5 Instrument of Amendment (Filed With SEC on February 24, 2015)

IBM EXCESS401(k) PLUS PLAN (As Amended andRestated effective as of January 1, 2010) AMENDMENT No. 4 Instrument ofAmendment (Filed With SEC on April 29, 2014)

IBM Board of Directors Amended and Restated Deferred Compensation and Equity Award Plan (Filed With SEC on February 25, 2014)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 3 Instrument of Amendment (Filed With SEC on February 25, 2014)

Date (Filed With SEC on July 31, 2013)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 0.450% Notes due 2016 $1,250,000,000 1.625% Notes due 2020 UNDERWRITING AGREEMENT (Filed With SEC on May 6, 2013)

INTERNATIONAL BUSINESS MACHINES CORPORATION 0.450% Note due 2016 (Filed With SEC on May 6, 2013)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 1 Instrument of Amendment (Filed With SEC on February 26, 2013)

IBM EXCESS 401(k) PLUS PLAN (As Amended and Restated effective as of January 1, 2010) AMENDMENT No. 2 Instrument of Amendment (Filed With SEC on February 26, 2013)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 1.250% Notes due 2018 $1,000,000,000 Floating Rate Notes due 2015 UNDERWRITING AGREEMENT (Filed With SEC on February 7, 2013)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.250% Note due 2018CUSIP 459200 HK 0ISIN US459200HK05 (Filed With SEC on February 7, 2013)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 1.375% Notes due 2019 UNDERWRITING AGREEMENT (Filed With SEC on November 16, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.375% Note due 2019[ISIN XS0856023147][COMMON CODE ###-###-####][CUSIP 459200 HH 7] (Filed With SEC on November 16, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 1.875% Notes due 2022 UNDERWRITING AGREEMENT (Filed With SEC on July 27, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.875% Note due 2022 (Filed With SEC on July 27, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $900,000,000 0.750% Notes due 2015 $600,000,000 1.875% Notes due 2019 UNDERWRITING AGREEMENT (Filed With SEC on May 10, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION 0.750% Note due 2015 (Filed With SEC on May 10, 2012)

NONCOMPETITION AGREEMENT (Filed With SEC on April 24, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities C$500,000,000 2.20% Notes due 2017 UNDERWRITING AGREEMENT (Filed With SEC on February 9, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION 2.20% Note due 2017 (Filed With SEC on February 9, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,500,000,000 0.550% Notes due 2015 $1,000,000,0001.250% Notes due 2017 (Filed With SEC on February 3, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION (Filed With SEC on February 3, 2012)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,350,000,000 0.875% Notes due 2014 $500,000,000 2.900% Notes due 2021 UNDERWRITING AGREEMENT (Filed With SEC on October 31, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION 0.875% Note due 2014 (Filed With SEC on October 31, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $2,000,000,000 1.950% Notes due 2016 UNDERWRITING AGREEMENT (Filed With SEC on July 21, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.950% Note due 2016 (Filed With SEC on July 21, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 1.250% Notes due 2014 UNDERWRITING AGREEMENT (Filed With SEC on May 11, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.250% Note due 2014 (Filed With SEC on May 11, 2011)

Date (Filed With SEC on April 26, 2011)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,000,000,000 Floating Rate Notes due 2012 UNDERWRITING AGREEMENT (Filed With SEC on December 14, 2010)

INTERNATIONAL BUSINESS MACHINES CORPORATION Floating Rate Note due 2012 (Filed With SEC on December 14, 2010)

INTERNATIONAL BUSINESS MACHINES CORPORATION 2.000% Note due 2016 (Filed With SEC on December 8, 2010)

IBM 401(K) PLUS PLAN (as Amended and Restated as of January 1, 2008) AMENDMENTNo. 3 Instrumentof Amendment (Filed With SEC on October 26, 2010)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,500,000,000 1.000% Notes due 2013 UNDERWRITING AGREEMENT (Filed With SEC on August 4, 2010)

INTERNATIONAL BUSINESS MACHINES CORPORATION 1.000% Note due 2013 (Filed With SEC on August 4, 2010)

Date (Filed With SEC on April 27, 2010)

Note: Thisexhibit amends and restates the IBM Excess 401(k) Plus Plan to clarify theadministrative structures of the Plan. IBM EXCESS 401(k) PLUS PLAN Amended and Restated... (Filed With SEC on February 23, 2010)

IBM 401(k) Plus Plan (As Amended and Restated January 1, 2008) AMENDMENT No. 1 Instrument of Amendment (Filed With SEC on February 23, 2010)

Amendment No. 2 (Filed With SEC on February 23, 2010)

INTERNATIONALBUSINESS MACHINES CORPORATION DebtSecurities $1,250,000,0002.100% Notes due 2013 $750,000,000Floating Rate Notes due 2011 UNDERWRITINGAGREEMENT (Filed With SEC on November 5, 2009)

INTERNATIONALBUSINESS MACHINES CORPORATION 2.100%Note due 2013 (Filed With SEC on November 5, 2009)

NONCOMPETITION AGREEMENT (Filed With SEC on April 28, 2009)

IBM Boardof Directors Deferred Compensationand Equity Award Plan (Filed With SEC on February 24, 2009)

IBM SUPPLEMENTAL EXECUTIVERETENTION PLAN Effective January 1,2009 (As Amended Through December 31,2008) (Filed With SEC on February 24, 2009)

IBM EXCESS 401(k) PLUS PLAN Effective January 1, 2008 (except asotherwise provided herein) (Filed With SEC on February 24, 2009)

INTERNATIONAL BUSINESS MACHINES CORPORATION Debt Securities $1,400,000,000 6.500% Notes due 2013 $1,600,000,000 7.625% Notes due 2018 $1,000,000,000 8.000% Notes due 2038... (Filed With SEC on October 14, 2008)

[FORM OF]GLOBAL [6.500][7.625%][8.000]% NOTE DUE [2013][2018][2038] (Filed With SEC on October 14, 2008)

IBM 2001 Long-TermPerformance Plan (Filed With SEC on October 30, 2007)

IBM PWCC Acquisition Long-Term Performance Plan (Filed With SEC on October 30, 2007)

IBM 1999 Long-TermPerformance Plan (Filed With SEC on October 30, 2007)

IBM 1994Long-Term Performance Plan (Filed With SEC on October 30, 2007)

$11,500,000,000 TERM LOAN AGREEMENT among IBM INTERNATIONAL GROUP B.V. TheSeveral Lenders from Time to Time Parties Hereto MORGANSTANLEY SENIOR FUNDING, INC., as Administrative... (Filed With SEC on July 31, 2007)

GUARANTY AGREEMENT made by INTERNATIONAL BUSINESS MACHINES CORPORATION in favor of MORGANSTANLEY SENIOR FUNDING, INC., as Administrative Agent Dated as of May 25, 2007 (Filed With SEC on July 31, 2007)

AcceleratedShare Repurchase Schedule of Standard Terms and Conditions (this Schedule) (Filed With SEC on July 31, 2007)

PARENT GUARANTEE AGREEMENT between INTERNATIONALBUSINESS MACHINES CORPORATION and [SELLER] Dated as of May 25, 2007 (Filed With SEC on July 31, 2007)

IBMSUPPLEMENTAL EXECUTIVE RETENTION PLAN EffectiveJuly 1, 1999 (AsAmended Through February 17, 2006) (Filed With SEC on February 28, 2006)

(As Amended and Restated as of January 1, 2005) (Filed With SEC on February 28, 2006)

IBM SAVINGS PLAN (AsAmended and Restated effective as of January 1, 2005 ) (Filed With SEC on April 26, 2005)

IBM Executive Deferred Compensation Plan (Amended and Restated Effective January 1, 2000) (the Plan) (reflecting all Planamendments through January 1, 2005) (Filed With SEC on April 26, 2005)

IBM 1999 Long-TermPerformance Plan (Filed With SEC on October 28, 2004)

IBM 2001 Long-Term PerformancePlan (Filed With SEC on October 28, 2004)

IBM PWCC Acquisition Long-Term Performance Plan (Filed With SEC on October 28, 2004)

1 of 2 (Filed With SEC on October 28, 2004)

IBM 1999 Long-Term Performance Plan (Filed With SEC on May 7, 2004)

IBM 2001 Long-TermPerformance Plan (Filed With SEC on May 7, 2004)

IBM PWCC AcquisitionLong-Term Performance Plan (Filed With SEC on May 7, 2004)

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IBM Contracts & Agreements