PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

STIFEL FINANCIAL CORP's Holding History (CIK: 0000720672)

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

Q4 2025

Shares 2,937,742 Value ($000) $5,787 Avg Close $2.61 Range $1.70 - $4.58

Q3 2025

Shares 2,393,634 Value ($000) $5,577 Avg Close $1.70 Range $1.34 - $3.16

Q2 2025

Shares 2,243,455 Value ($000) $3,343 Avg Close $1.00 Range $0.69 - $1.57

Q1 2025

Shares 1,691,355 Value ($000) $2,283 Avg Close $1.90 Range $1.26 - $3.32

Q4 2024

Shares 1,363,114 Value ($000) $2,903 Avg Close $2.18 Range $1.79 - $2.86

Q3 2024

Shares 1,398,398 Value ($000) $3,160 Avg Close $2.24 Range $1.60 - $3.34

Q2 2024

Shares 1,132,884 Value ($000) $2,640 Avg Close $2.86 Range $2.25 - $4.90

Q1 2024

Shares 538,431 Value ($000) $1,852 Avg Close $3.72 Range $2.26 - $5.14

Q4 2023

Shares 256,906 Value ($000) $1,156 Avg Close $5.24 Range $3.22 - $7.90

Q3 2023

Shares 496,725 Value ($000) $3,775 Avg Close $9.77 Range $7.27 - $13.44

Q2 2023

Shares 299,801 Value ($000) $3,115 Avg Close $9.10 Range $7.39 - $11.78

Q1 2023

Shares 215,954 Value ($000) $2,531 Avg Close $14.30 Range $10.30 - $18.88

Q4 2022

Shares 205,373 Value ($000) $2,540 Avg Close $15.92 Range $11.49 - $23.45

Q3 2022

Shares 302,456 Value ($000) $6,355 Avg Close $23.85 Range $14.75 - $31.56

Q2 2022

Shares 209,663 Value ($000) $3,475 Avg Close $19.84 Range $12.70 - $32.05

Q1 2022

Shares 200,743 Value ($000) $5,744 Avg Close $23.83 Range $17.51 - $29.99

Q4 2021

Shares 194,371 Value ($000) $5,488 Avg Close $34.60 Range $23.81 - $46.50

Q3 2021

Shares 211,443 Value ($000) $5,401 Avg Close $26.79 Range $23.16 - $34.45

Q2 2021

Shares 189,124 Value ($000) $6,466 Avg Close $29.01 Range $18.47 - $37.75

Q1 2021

Shares 102,604 Value ($000) $3,677 Avg Close $51.55 Range $30.10 - $75.49

Q4 2020

Shares 110,282 Value ($000) $3,740 Avg Close $22.64 Range $13.27 - $37.51

Q3 2020

Shares 67,556 Value ($000) $906 Avg Close $11.02 Range $7.07 - $14.35

Q2 2020

Shares 90,827 Value ($000) $746 Avg Close $4.68 Range $3.22 - $8.34

Q1 2020

Shares 95,563 Value ($000) $339 Avg Close $4.07 Range $2.53 - $6.05

Q4 2019

Shares 52,290 Value ($000) $166 Avg Close $3.04 Range $2.32 - $4.04

Q2 2014

Shares 24,721 Value ($000) $116 Avg Close $5.09 Range $3.62 - $8.37

Q1 2014

Shares 20,521 Value ($000) $146 Avg Close $4.62 Range $1.89 - $11.72

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,937,742	$5,787	$2.61	$1.70 - $4.58
Q3 2025	2,393,634	$5,577	$1.70	$1.34 - $3.16
Q2 2025	2,243,455	$3,343	$1.00	$0.69 - $1.57
Q1 2025	1,691,355	$2,283	$1.90	$1.26 - $3.32
Q4 2024	1,363,114	$2,903	$2.18	$1.79 - $2.86
Q3 2024	1,398,398	$3,160	$2.24	$1.60 - $3.34
Q2 2024	1,132,884	$2,640	$2.86	$2.25 - $4.90
Q1 2024	538,431	$1,852	$3.72	$2.26 - $5.14
Q4 2023	256,906	$1,156	$5.24	$3.22 - $7.90
Q3 2023	496,725	$3,775	$9.77	$7.27 - $13.44
Q2 2023	299,801	$3,115	$9.10	$7.39 - $11.78
Q1 2023	215,954	$2,531	$14.30	$10.30 - $18.88
Q4 2022	205,373	$2,540	$15.92	$11.49 - $23.45
Q3 2022	302,456	$6,355	$23.85	$14.75 - $31.56
Q2 2022	209,663	$3,475	$19.84	$12.70 - $32.05
Q1 2022	200,743	$5,744	$23.83	$17.51 - $29.99
Q4 2021	194,371	$5,488	$34.60	$23.81 - $46.50
Q3 2021	211,443	$5,401	$26.79	$23.16 - $34.45
Q2 2021	189,124	$6,466	$29.01	$18.47 - $37.75
Q1 2021	102,604	$3,677	$51.55	$30.10 - $75.49
Q4 2020	110,282	$3,740	$22.64	$13.27 - $37.51
Q3 2020	67,556	$906	$11.02	$7.07 - $14.35
Q2 2020	90,827	$746	$4.68	$3.22 - $8.34
Q1 2020	95,563	$339	$4.07	$2.53 - $6.05
Q4 2019	52,290	$166	$3.04	$2.32 - $4.04
Q2 2014	24,721	$116	$5.09	$3.62 - $8.37
Q1 2014	20,521	$146	$4.62	$1.89 - $11.72