LITTELFUSE INC /DE — Director's Dealing 2017

May 9, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LITTELFUSE INC /DE (LFUS)
CIK: 0000889331
Period of Report: 2017-05-08

Reporting Person: Nayar Deepak (SVP & GM Electronics Div)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-08	Common Stock	S	491	$157.42	Disposed	5141	Direct
2017-05-08	Common Stock	S	504	$156.17	Disposed	4637	Direct
2017-05-08	Common Stock	S	337	$153.11	Disposed	4300	Direct
2017-05-08	Common Stock	M	2563	$94.84	Acquired	6863	Direct
2017-05-08	Common Stock	M	2883	$96.15	Acquired	9746	Direct
2017-05-08	Common Stock	M	2767	$120.15	Acquired	12513	Direct
2017-05-08	Common Stock	S	8213	$166.00	Disposed	4300	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-08	Stock Option (right to buy)	$94.84	M	2563	Disposed	2021-04-25	Common Stock (2563)	Direct
2017-05-08	Stock Option (right to buy)	$96.15	M	2883	Disposed	2022-04-24	Common Stock (2883)	Direct
2017-05-08	Stock Option (right to buy)	$120.15	M	2767	Disposed	2023-04-22	Common Stock (2767)	Direct

Footnotes

F1: The shares were sold in multiple transactions at prices ranging from $166.00 to $166.24. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

F2: The option for 7,690 shares vests in increments of one third annually beginning on the first anniversary of the April 25, 2014 date of grant.

F3: The option for 8,650 shares vests in increments of one third annually beginning on the first anniversary of the April 24, 2015 date of grant.

F4: The option for 8,301 shares vests in increments of one third annually beginning on the first anniversary of the April 22, 2016 date of grant.