PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

Clean Yield Group's Holding History (CIK: 0001525865)

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

Q4 2022

Shares 683 Value ($000) $8 Avg Close $15.92 Range $11.49 - $23.45

Q3 2022

Shares 450 Value ($000) $9 Avg Close $23.85 Range $14.75 - $31.56

Q2 2022

Shares 450 Value ($000) $7 Avg Close $19.84 Range $12.70 - $32.05

Q1 2022

Shares 450 Value ($000) $13 Avg Close $23.83 Range $17.51 - $29.99

Q4 2021

Shares 450 Value ($000) $13 Avg Close $34.60 Range $23.81 - $46.50

Q3 2021

Shares 650 Value ($000) $17 Avg Close $26.79 Range $23.16 - $34.45

Q2 2021

Shares 650 Value ($000) $22 Avg Close $29.01 Range $18.47 - $37.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	683	$8	$15.92	$11.49 - $23.45
Q3 2022	450	$9	$23.85	$14.75 - $31.56
Q2 2022	450	$7	$19.84	$12.70 - $32.05
Q1 2022	450	$13	$23.83	$17.51 - $29.99
Q4 2021	450	$13	$34.60	$23.81 - $46.50
Q3 2021	650	$17	$26.79	$23.16 - $34.45
Q2 2021	650	$22	$29.01	$18.47 - $37.75