PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

ALPINE WOODS CAPITAL INVESTORS, LLC's Holding History (CIK: 0001226886)

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

Q4 2023

Shares 25,192 Value ($000) $113 Avg Close $5.24 Range $3.22 - $7.90

Q3 2023

Shares 39,397 Value ($000) $0 Avg Close $9.77 Range $7.27 - $13.44

Q2 2023

Shares 39,397 Value ($000) $0 Avg Close $9.10 Range $7.39 - $11.78

Q1 2023

Shares 215,798 Value ($000) $3 Avg Close $14.30 Range $10.30 - $18.88

Q4 2022

Shares 197,952 Value ($000) $2 Avg Close $15.92 Range $11.49 - $23.45

Q3 2022

Shares 248,538 Value ($000) $5,222 Avg Close $23.85 Range $14.75 - $31.56

Q2 2022

Shares 277,229 Value ($000) $4,594 Avg Close $19.84 Range $12.70 - $32.05

Q1 2022

Shares 190,609 Value ($000) $5,453 Avg Close $23.83 Range $17.51 - $29.99

Q4 2021

Shares 153,901 Value ($000) $4,345 Avg Close $34.60 Range $23.81 - $46.50

Q3 2021

Shares 143,622 Value ($000) $3,668 Avg Close $26.79 Range $23.16 - $34.45

Q2 2021

Shares 147,022 Value ($000) $5,027 Avg Close $29.01 Range $18.47 - $37.75

Q1 2021

Shares 146,991 Value ($000) $5,268 Avg Close $51.55 Range $30.10 - $75.49

Q4 2020

Shares 245,556 Value ($000) $8,327 Avg Close $22.64 Range $13.27 - $37.51

Q3 2020

Shares 198,841 Value ($000) $2,666 Avg Close $11.02 Range $7.07 - $14.35

Q2 2020

Shares 166,523 Value ($000) $1,367 Avg Close $4.68 Range $3.22 - $8.34

Q1 2020

Shares 41,200 Value ($000) $146 Avg Close $4.07 Range $2.53 - $6.05

Q4 2019

Shares 40,000 Value ($000) $126 Avg Close $3.04 Range $2.32 - $4.04

Q3 2019

Shares 40,000 Value ($000) $105 Avg Close $2.32 Range $1.88 - $2.94

Q2 2019

Shares 20,000 Value ($000) $45 Avg Close $2.48 Range $1.86 - $2.87

Q1 2019

Shares 20,000 Value ($000) $48 Avg Close $1.74 Range $1.23 - $2.65

Q4 2018

Shares 20,000 Value ($000) $25 Avg Close $1.70 Range $0.99 - $2.00

Q3 2018

Shares 20,000 Value ($000) $38 Avg Close $1.95 Range $1.72 - $2.20

Q2 2018

Shares 20,000 Value ($000) $40 Avg Close $1.94 Range $1.71 - $2.27

Q1 2018

Shares 20,000 Value ($000) $38 Avg Close $2.01 Range $1.53 - $2.44

Q4 2017

Shares 20,000 Value ($000) $47 Avg Close $2.56 Range $2.17 - $3.21

Q3 2017

Shares 20,000 Value ($000) $52 Avg Close $2.23 Range $1.98 - $2.82

Q2 2017

Shares 20,000 Value ($000) $41 Avg Close $2.09 Range $1.25 - $2.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	25,192	$113	$5.24	$3.22 - $7.90
Q3 2023	39,397	$0	$9.77	$7.27 - $13.44
Q2 2023	39,397	$0	$9.10	$7.39 - $11.78
Q1 2023	215,798	$3	$14.30	$10.30 - $18.88
Q4 2022	197,952	$2	$15.92	$11.49 - $23.45
Q3 2022	248,538	$5,222	$23.85	$14.75 - $31.56
Q2 2022	277,229	$4,594	$19.84	$12.70 - $32.05
Q1 2022	190,609	$5,453	$23.83	$17.51 - $29.99
Q4 2021	153,901	$4,345	$34.60	$23.81 - $46.50
Q3 2021	143,622	$3,668	$26.79	$23.16 - $34.45
Q2 2021	147,022	$5,027	$29.01	$18.47 - $37.75
Q1 2021	146,991	$5,268	$51.55	$30.10 - $75.49
Q4 2020	245,556	$8,327	$22.64	$13.27 - $37.51
Q3 2020	198,841	$2,666	$11.02	$7.07 - $14.35
Q2 2020	166,523	$1,367	$4.68	$3.22 - $8.34
Q1 2020	41,200	$146	$4.07	$2.53 - $6.05
Q4 2019	40,000	$126	$3.04	$2.32 - $4.04
Q3 2019	40,000	$105	$2.32	$1.88 - $2.94
Q2 2019	20,000	$45	$2.48	$1.86 - $2.87
Q1 2019	20,000	$48	$1.74	$1.23 - $2.65
Q4 2018	20,000	$25	$1.70	$0.99 - $2.00
Q3 2018	20,000	$38	$1.95	$1.72 - $2.20
Q2 2018	20,000	$40	$1.94	$1.71 - $2.27
Q1 2018	20,000	$38	$2.01	$1.53 - $2.44
Q4 2017	20,000	$47	$2.56	$2.17 - $3.21
Q3 2017	20,000	$52	$2.23	$1.98 - $2.82
Q2 2017	20,000	$41	$2.09	$1.25 - $2.70