Notice of Exempt Solicitation. Definitive Material. (px14a6g)

SECURITIES & EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

NOTICE OF EXEMPT SOLICITATION

NAME OF REGISTRANT: Caterpillar Inc.

NAME OF PERSON RELYING ON EXEMPTION: Change to Win Investment Group

ADDRESS OF PERSON RELYING ON EXEMPTION: 1900 K Street, N.W., Suite 900, Washington, DC 20036

Written materials are submitted pursuant to Rule 14a-6(g)(1) promulgated under the Securities Exchange Act of 1934:

CtW Investment Group @CtWInvGrp · May 19

Cat CEO didn't deserve pay raise, CTW Investment Group says https://shar.es/1rd7hG via @crainschicago #corpgov $CAT #execpay

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[The link in this tweet is to an article in Crain’s Chicago Business with the same name dated May 19, 2015.]

CtW Investment Group @CtWInvGrp · May 19

CtW Investment Group launches 2 new vote no efforts - Wal-Mart and Caterpillar - http://ctwinvestmentgroup.com/ #corpgov #execpay $CAT $WMT

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[The link in this tweet is to the “Recent Initiatives” page at www.ctwinvestmentgroup.com.]

CtW Investment Group @CtWInvGrp · May 18

CAT: case study on how not to structure #execpay CtW IG No’ Vote on Caterpillar pay $CAT #corpgov #execpay http://on.wsj.com/1ET78iF via @WSJ