SEC Form 4 · accession 0000073124-17-000127

NORTHERN TRUST CORP · NTRS

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — COO

Period of report

Mar 15, 2017

Accepted (ET)

Mar 16, 2017 · 6:46 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000073124

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1	Mar 15, 2017	M	52,312	$52.64	A	95,912	D
Common Stock^F3,F1	Mar 15, 2017	S	52,312	$90.05	D	43,600	D
Common Stock^F1	Mar 16, 2017	M	11,600	$52.64	A	55,200	D
Common Stock^F1	Mar 16, 2017	S	11,600	$90.00	D	43,600	D
Common Stock	holding	—	—		—	27,023	I	By Trust
Common Stock	holding	—	—		—	7,329	I	2012 GRAT
Common Stock	holding	—	—		—	4,169	I	2015 GRAT
Common Stock	holding	—	—		—	12,612	I	2016 GRAT
Common Stock	holding	—	—		—	12,508	I	2017 GRAT
Common Stock	holding	—	—		—	10,031	I	401(k) as of 12-31-16

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Employee Stock Option (right-to-buy)^F4	$52.64	Mar 15, 2017	M	52,312	D	—	Feb 14, 2021	Common Stock	52,312	11,600	D
Employee Stock Option (right-to-buy)^F4	$52.64	Mar 16, 2017	M	11,600	D	—	Feb 14, 2021	Common Stock	11,600	0	D

F1Includes 43,600 shares representing stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock.
F2This transaction was effected pursuant to a trading plan adopted in accordance with SEC Rule 10b5-1.
F3Price reflects the weighted average sales price from $90.00 to $90.16. Information regarding the number of shares sold at each separate price will be provided by the reporting person upon request.
F4This option became exercisable in four equal annual installments beginning 2/14/2012.