NATURAL GROCERS BY VITAMIN C

Ticker: NGVC CUSIP: 63888U108 Class: Common Stock

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014

Shares 95,703 Value ($000) $4,178 Avg Close $29.12 Range $23.95 - $31.88

Q4 2013

Shares 118,982 Value ($000) $5,051 Avg Close $27.51 Range $24.64 - $30.50

Q3 2013

Shares 151,942 Value ($000) $6,032 Avg Close $26.14 Range $20.90 - $30.63

Q2 2013

Shares 135,785 Value ($000) $4,209 Avg Close $19.35 Range $15.01 - $24.54

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	95,703	$4,178	$29.12	$23.95 - $31.88
Q4 2013	118,982	$5,051	$27.51	$24.64 - $30.50
Q3 2013	151,942	$6,032	$26.14	$20.90 - $30.63
Q2 2013	135,785	$4,209	$19.35	$15.01 - $24.54