DZS INC

Ticker: DZSIQ CUSIP: 268211109 Class: Common Stock

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

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

Q2 2021

Shares 145,300 Value ($000) $3,015 Avg Close — Range —

Q1 2021

Shares 300,000 Value ($000) $4,665 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	145,300	$3,015	—	—
Q1 2021	300,000	$4,665	—	—