SEC Form 4 · accession 0001140361-15-017632

NATIONAL INSTRUMENTS CORP · NATI

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

Reporting owner

Officer — COO, CFO & EXECUTIVE VP

Period of report

May 1, 2015

Accepted (ET)

May 5, 2015 · 2:57 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000935494

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock^F1	May 1, 2015	M	265	$24.31	A	65,321	D
Common Stock^F2	May 1, 2015	M	16,633	—	A	81,954	D
Common Stock	May 1, 2015	F	4,615	$28.3406	D	77,339	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Restricted Stock Units^F2,F3	—	May 1, 2015	M	6	D	—	May 1, 2021	Common Stock	6	0	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	1,691	D	—	May 1, 2022	Common Stock	1,932	241	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	1,691	D	—	May 1, 2023	Common Stock	3,851	2,160	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	4,227	D	—	May 1, 2024	Common Stock	14,158	9,931	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	2,818	D	—	May 1, 2026	Common Stock	16,113	13,295	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	2,818	D	—	May 1, 2027	Common Stock	19,548	16,730	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	1,691	D	—	May 1, 2028	Common Stock	13,467	11,776	D
Restricted Stock Units^F2,F3	—	May 1, 2015	M	1,691	D	—	May 1, 2029	Common Stock	15,000	13,309	D

F1Acquisition of stock under Issuer's employee stock purchase plan.
F2Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F3The restricted stock units vest and become exercisable based on time and performance milestones set by the Issuer.