PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

Cornerstone Wealth Management, LLC's Holding History (CIK: 0001674117)

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

Q4 2025

Shares 10,305 Value ($000) $20 Avg Close $2.61 Range $1.70 - $4.58

Q3 2025

Shares 10,530 Value ($000) $25 Avg Close $1.70 Range $1.34 - $3.16

Q2 2025

Shares 10,530 Value ($000) $16 Avg Close $1.00 Range $0.69 - $1.57

Q1 2025

Shares 10,530 Value ($000) $14 Avg Close $1.90 Range $1.26 - $3.32

Q3 2018

Shares 3,808 Value ($000) $1,327 Avg Close $1.95 Range $1.72 - $2.20

Q2 2018

Shares 2,694 Value ($000) $1,327 Avg Close $1.94 Range $1.71 - $2.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,305	$20	$2.61	$1.70 - $4.58
Q3 2025	10,530	$25	$1.70	$1.34 - $3.16
Q2 2025	10,530	$16	$1.00	$0.69 - $1.57
Q1 2025	10,530	$14	$1.90	$1.26 - $3.32
Q3 2018	3,808	$1,327	$1.95	$1.72 - $2.20
Q2 2018	2,694	$1,327	$1.94	$1.71 - $2.27