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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
51143	International Business Machines Corp	IBM	Computer & Office Equipment (3570)	130871985

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1481603	D. Michael Rhodin	Ibm Corporation 5 Technology Park Dr., Westford Tech Ctr Westford MA 01886	Senior Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-02-09	812	$123.21	10,000	No	4	I	Direct
Common Stock	Disposition	2010-02-09	300	$123.85	9,700	No	4	S	Direct
Common Stock	Disposition	2010-02-09	168	$123.86	9,532	No	4	S	Direct
Common Stock	Disposition	2010-02-09	300	$123.87	9,232	No	4	S	Direct
Common Stock	Disposition	2010-02-09	100	$123.90	9,132	No	4	S	Direct
Common Stock	Disposition	2010-02-09	100	$123.92	9,032	No	4	S	Direct
Common Stock	Disposition	2010-02-09	700	$123.93	8,332	No	4	S	Direct
Common Stock	Disposition	2010-02-09	150	$123.93	8,182	No	4	S	Direct
Common Stock	Disposition	2010-02-09	100	$123.95	8,082	No	4	S	Direct
Common Stock	Disposition	2010-02-09	400	$123.96	7,682	No	4	S	Direct
Common Stock	Disposition	2010-02-09	182	$123.96	7,500	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	I	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Phantom Stock Unit	Acquisiton	2010-02-09	1,624	$123.21	1,624	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
5,196			No	4	I	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	50	Indirect	daughter 1
Common Stock	50	Indirect	daughter 2
Common Stock	50	Indirect	son

Footnotes

Intra-plan transfer into the IBM Stock Fund of the IBM 401(k) Plus Plan.
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.
Phantom stock units convert to the cash value of the company's common stock on a one-for-one basis.
Intra-plan transfer under the IBM Excess 401(k) Plus Plan.
Distribution of phantom stock units under the IBM Excess 401(k) Plus Plan is deferred until separation from the company. The reporting person may transfer these phantom stock units into an alternative investment account under such plan.