Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Arnold Colleen F.
2. Date of Event Requiring Statement (Month/Day/Year)
01/12/2010
3. Issuer Name and Ticker or Trading Symbol
INTERNATIONAL BUSINESS MACHINES CORP [IBM]
(Last)
(First)
(Middle)
IBM CORPORATION, 294 ROUTE 100
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SOMERS, NY 10589
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 22,637.514
D
 
Common Stock 3,524
I (1)
trust
Common Stock 130
I (1)
son
Common Stock 130
I (1)
daughter

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Emp. Stock Option (right to buy) 05/08/2009(2) 05/07/2016 Common Stock 1,560 $ 82.76 D  
Emp. Stock Option (right to buy) 05/08/2010(3) 05/07/2017 Common Stock 1,172 $ 102.8 D  
Rst. Stock Unit   (4)   (4) Common Stock 3,125 $ 0 D  
Rst. Stock Unit   (5)   (5) Common Stock 2,369 $ 0 D  
Rst. Stock Unit   (6)   (6) Common Stock 12,196 $ 0 D  
Rst. Stock Unit   (7)   (7) Common Stock 9,709 $ 0 D  
Rst. Stock Unit   (8)   (8) Common Stock 4,206 $ 0 D  
Phantom Stock Unit   (9)   (9) Common Stock 3,371 $ 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Arnold Colleen F.
IBM CORPORATION
294 ROUTE 100
SOMERS, NY 10589
      Senior Vice President  

Signatures

D. Cummins on behalf of C.F. Arnold 01/21/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person disclaims beneficial ownership of the securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
(2) This grant vested in its entirety on the date shown above.
(3) This grant vests in its entirety on the date shown above.
(4) These units are payable in cash or the company's common stock upon lapse of the restrictions on May 8, 2010.
(5) These units are payable in cash or the company's common stock upon lapse of the restrictions on May 8, 2011.
(6) These units are payable in cash or the company's common stock upon lapse of the restrictions on October 25, 2010.
(7) These units are payable in cash or the company's common stock upon lapse of the restrictions on September 4, 2012.
(8) Upon lapse of the restrictions, these units are payble in cash or the company's common stock. The restrictions lapse for 2,103 of the units on May 8, 2010 and for 2,103 of the units on May 8, 2012.
(9) Phantom stock units acquired under the IBM Excess 401(k) Plus Plan convert to the cash value of the company's common stock on a one-for-one basis, and distribution is deferred until separation from the company. The reporting person may transfer some of these phantom stock units into an alternative investment account under such plan.

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