TECOGEN INC NEW

Ticker: TGEN CUSIP: 87876P201 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q1 2020

Shares 566,517 Value ($000) $527 Avg Close $1.87 Range $0.92 - $2.49

Q4 2019

Shares 625,904 Value ($000) $1,327 Avg Close $2.39 Range $2.03 - $2.75

Q3 2019

Shares 723,525 Value ($000) $1,722 Avg Close $2.98 Range $2.11 - $3.75

Q2 2019

Shares 792,951 Value ($000) $2,974 Avg Close $3.69 Range $3.36 - $4.20

Q1 2019

Shares 709,704 Value ($000) $2,832 Avg Close $3.85 Range $3.45 - $4.15

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	566,517	$527	$1.87	$0.92 - $2.49
Q4 2019	625,904	$1,327	$2.39	$2.03 - $2.75
Q3 2019	723,525	$1,722	$2.98	$2.11 - $3.75
Q2 2019	792,951	$2,974	$3.69	$3.36 - $4.20
Q1 2019	709,704	$2,832	$3.85	$3.45 - $4.15