INTERNATIONAL BUSINESS MACHINES CORP

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Financial Statements and Exhibits

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Post Effective Amendment to S-8

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Entry into a Material Definitive Agreement

Specialized Disclosure Report

Regulation FD Disclosure

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Additional Information for Proxy Statement/ Votes

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Annual report pursuant to Section 13 or 15(d)

Certification of approval for listing and registration on a national securities exchange

Financial Statements and Exhibits

Registration of Securities on Exchange

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Results of Operations and Financial Condition

Notification of removal from listing and/or registration on a national securities exchange

Notification of removal from listing and/or registration on a national securities exchange

General form for quarterly reports under Section 13 or 15(d)

Regulation FD Disclosure

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

Regulation FD Disclosure

Results of Operations and Financial Condition

Entry into a Material Definitive Agreement

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Submission of Matters to a Vote of Security Holders

Other Events

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

Regulation FD Disclosure

Shareholder Letter

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Shareholder Letter

Annual Report Scanned (Paper)

Shareholder Letter

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Shareholder Letter

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Shareholder Letter

Annual report pursuant to Section 13 or 15(d)

No description available

General form for quarterly reports under Section 13 or 15(d)

No description available

No description available

LIVERIS ANDREW N

Laguarta Ramon

VOSER PETER R.

Buberl Thomas

Pollack Martha E

HOWARD MICHELLE J

Miebach Michael

Brown Marianne Catherine

Gorsky Alex

MCNABB FREDERICK WILLIAM III

ZOLLAR ALFRED W

FARR DAVID N

Thomas Robert David

KRISHNA ARVIND

Thomas Robert David

FARR DAVID N

VOSER PETER R.

Gorsky Alex

LIVERIS ANDREW N

ZOLLAR ALFRED W