DUCOMMUN INC DEL

Ticker: DCO CUSIP: 264147109 Class: COM

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

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

Q1 2019

Shares 50,260 Value ($000) $2,187 Avg Close $41.03 Range $34.58 - $47.28

Q4 2018

Shares 51,980 Value ($000) $1,888 Avg Close $38.49 Range $33.30 - $45.62

Q3 2018

Shares 55,441 Value ($000) $2,264 Avg Close $37.36 Range $31.05 - $41.40

Q2 2018

Shares 53,161 Value ($000) $1,759 Avg Close $32.28 Range $27.87 - $35.89

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	50,260	$2,187	$41.03	$34.58 - $47.28
Q4 2018	51,980	$1,888	$38.49	$33.30 - $45.62
Q3 2018	55,441	$2,264	$37.36	$31.05 - $41.40
Q2 2018	53,161	$1,759	$32.28	$27.87 - $35.89