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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
1180459	A Steven Mills	Ibm Corporation 294 Route 100 Somers NY 10589	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	Disposition	2010-08-19	10	$0.00	109,902	No	5	G	Direct
Common Stock	Disposition	2010-08-19	10	$0.00	109,892	No	5	G	Direct
Common Stock	Disposition	2010-08-19	10	$0.00	109,882	No	5	G	Direct
Common Stock	Disposition	2010-08-19	20	$0.00	109,862	No	5	G	Direct
Common Stock	Disposition	2010-08-19	20	$0.00	109,842	No	5	G	Direct
Common Stock	Acquisiton	2010-10-29	57,189	$78.13	167,031	No	4	M	Direct
Common Stock	Acquisiton	2010-10-29	55,902	$105.96	222,933	No	4	M	Direct
Common Stock	Disposition	2010-10-29	3,793	$142.52	219,140	No	4	S	Direct
Common Stock	Disposition	2010-10-29	600	$142.53	218,540	No	4	S	Direct
Common Stock	Disposition	2010-10-29	2,000	$142.53	216,540	No	4	S	Direct
Common Stock	Disposition	2010-10-29	100	$142.54	216,440	No	4	S	Direct
Common Stock	Disposition	2010-10-29	1,930	$142.54	214,510	No	4	S	Direct
Common Stock	Disposition	2010-10-29	100	$142.55	214,410	No	4	S	Direct
Common Stock	Disposition	2010-10-29	700	$142.55	213,710	No	4	S	Direct
Common Stock	Disposition	2010-10-29	205	$142.56	213,505	No	4	S	Direct
Common Stock	Disposition	2010-10-29	200	$142.57	213,305	No	4	S	Direct
Common Stock	Disposition	2010-10-29	1,000	$142.57	212,305	No	4	S	Direct
Common Stock	Disposition	2010-10-29	100	$142.58	212,205	No	4	S	Direct
Common Stock	Disposition	2010-10-29	2,201	$142.58	210,004	No	4	S	Direct
Common Stock	Disposition	2010-10-29	300	$142.59	209,704	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	5	G	Direct
No	5	G	Direct
No	5	G	Direct
No	5	G	Direct
No	5	G	Direct
No	4	M	Direct
No	4	M	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
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	Emp. Stock Option (right to buy)	Disposition	2010-10-29	57,189	$0.00	57,189	$78.13
Common Stock	Emp. Stock Option (right to buy)	Disposition	2010-10-29	55,902	$0.00	55,902	$105.96

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2007-02-25	2013-02-24	No	4	M	Direct
0	2008-02-24	2014-02-23	No	4	M	Direct

Footnotes

This grant vested in four equal annual installments; the last installment vested on the date shown above.