PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q1 2021

Shares 10,545 Value ($000) $378 Avg Close $51.55 Range $30.10 - $75.49

Q4 2020

Shares 13,396 Value ($000) $454 Avg Close $22.64 Range $13.27 - $37.51

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	10,545	$378	$51.55	$30.10 - $75.49
Q4 2020	13,396	$454	$22.64	$13.27 - $37.51