PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q1 2021

Shares 10,513 Value ($000) $377 Avg Close $51.55 Range $30.10 - $75.49

Q4 2020

Shares 151,749 Value ($000) $5,145 Avg Close $22.64 Range $13.27 - $37.51

Q3 2020

Shares 109,741 Value ($000) $1,471 Avg Close $11.02 Range $7.07 - $14.35

Q4 2019

Shares 286,621 Value ($000) $906 Avg Close $3.04 Range $2.32 - $4.04

Q2 2018

Shares 39,700 Value ($000) $80 Avg Close $1.94 Range $1.71 - $2.27

Q3 2017

Shares 50,738 Value ($000) $132 Avg Close $2.23 Range $1.98 - $2.82

Q4 2015

Shares 25,600 Value ($000) $54 Avg Close $2.20 Range $1.76 - $2.98

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	10,513	$377	$51.55	$30.10 - $75.49
Q4 2020	151,749	$5,145	$22.64	$13.27 - $37.51
Q3 2020	109,741	$1,471	$11.02	$7.07 - $14.35
Q4 2019	286,621	$906	$3.04	$2.32 - $4.04
Q2 2018	39,700	$80	$1.94	$1.71 - $2.27
Q3 2017	50,738	$132	$2.23	$1.98 - $2.82
Q4 2015	25,600	$54	$2.20	$1.76 - $2.98