ZOVIO INC

Ticker: ZVOI CUSIP: 98979V102 Class: COMMON STOCK

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

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

Q1 2021

Shares 424,285 Value ($000) $1,723 Avg Close $5.30 Range $4.03 - $7.34

Q4 2020

Shares 469,109 Value ($000) $2,224 Avg Close $4.11 Range $3.21 - $5.21

Q3 2020

Shares 358,514 Value ($000) $1,434 Avg Close $4.41 Range $3.01 - $7.24

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	424,285	$1,723	$5.30	$4.03 - $7.34
Q4 2020	469,109	$2,224	$4.11	$3.21 - $5.21
Q3 2020	358,514	$1,434	$4.41	$3.01 - $7.24