MASTECH DIGITAL INC

Ticker: MHH CUSIP: 57633B100 Class: Common Stock

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

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

Q2 2022

Shares 53,691 Value ($000) $798 Avg Close $17.92 Range $14.37 - $21.83

Q1 2022

Shares 90,594 Value ($000) $1,675 Avg Close $17.97 Range $16.29 - $19.75

Q4 2021

Shares 69,586 Value ($000) $1,188 Avg Close $17.81 Range $15.89 - $20.60

Q4 2020

Shares 24,495 Value ($000) $389 Avg Close $18.06 Range $15.38 - $22.98

Q3 2020

Shares 53,094 Value ($000) $956 Avg Close $20.88 Range $17.00 - $26.08

Q2 2020

Shares 51,341 Value ($000) $1,331 Avg Close $17.73 Range $7.85 - $29.98

Q1 2020

Shares 69,209 Value ($000) $889 Avg Close $12.70 Range $7.25 - $17.84

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	53,691	$798	$17.92	$14.37 - $21.83
Q1 2022	90,594	$1,675	$17.97	$16.29 - $19.75
Q4 2021	69,586	$1,188	$17.81	$15.89 - $20.60
Q4 2020	24,495	$389	$18.06	$15.38 - $22.98
Q3 2020	53,094	$956	$20.88	$17.00 - $26.08
Q2 2020	51,341	$1,331	$17.73	$7.85 - $29.98
Q1 2020	69,209	$889	$12.70	$7.25 - $17.84