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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
73124	Northern Trust Corp	NTRS	State Commercial Banks (6022)	362723087

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1223690	H Frederick Waddell	50 South Lasalle Street Chicago IL 60603	Chairman And Ceo	Yes	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	2015-06-10	13,395	$63.36	210,829	No	4	M	Direct
Common Stock	Disposition	2015-06-10	13,395	$77.50	197,434	No	4	S	Direct
Common Stock	Acquisiton	2015-06-11	21,710	$63.36	219,144	No	4	M	Direct
Common Stock	Disposition	2015-06-11	21,710	$77.55	197,434	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (right-to-buy)	Disposition	2015-06-10	13,395	$0.00	13,395	$63.36
Common Stock	Employee Stock Option (right-to-buy)	Disposition	2015-06-11	21,710	$0.00	21,710	$63.36

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
21,710		2017-02-20	No	4	M	Direct
0		2017-02-20	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	96,587	Indirect	By Trust
Common Stock	33,500	Indirect	2013 GRAT
Common Stock	15,169	Indirect	2014 GRAT
Common Stock	54,800	Indirect	2015 GRAT
Common Stock	8,710	Indirect	By Spouse
Common Stock	33,256	Indirect	401(k) as of 3-31-2015

Footnotes

Includes 197,314 shares representing stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock.
This transaction was effected pursuant to a trading plan adopted in accordance with SEC Rule 10b5-1.
Price reflects the weighted average sales price from $77.50 to $77.51. Information regarding the number of shares sold at each separate price will be provided by the reporting person upon request.
Price reflects the weighted average sales price from $77.50 to $77.62. Information regarding the number of shares sold at each separate price will be provided by the reporting person upon request.
This option became exercisable in four equal annual installments beginning 2/20/2008.