PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

Riggs Asset Managment Co. Inc.'s Holding History (CIK: 0001601348)

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

Q1 2023
Shares 1,250 Value ($000) $15 Avg Close $14.30 Range $10.30 - $18.88
Q4 2022
Shares 1,250 Value ($000) $15 Avg Close $15.92 Range $11.49 - $23.45
Q3 2022
Shares 1,250 Value ($000) $26 Avg Close $23.85 Range $14.75 - $31.56
Q1 2021
Shares 100 Value ($000) $4 Avg Close $51.55 Range $30.10 - $75.49
Q4 2018
Shares 200 Value ($000) $0 Avg Close $1.70 Range $0.99 - $2.00
Q3 2018
Shares 200 Value ($000) $0 Avg Close $1.95 Range $1.72 - $2.20
Q2 2018
Shares 200 Value ($000) $0 Avg Close $1.94 Range $1.71 - $2.27
Q1 2018
Shares 200 Value ($000) $0 Avg Close $2.01 Range $1.53 - $2.44
Q4 2017
Shares 200 Value ($000) $0 Avg Close $2.56 Range $2.17 - $3.21
Q3 2017
Shares 200 Value ($000) $1 Avg Close $2.23 Range $1.98 - $2.82
Q2 2017
Shares 200 Value ($000) $0 Avg Close $2.09 Range $1.25 - $2.70
Q1 2017
Shares 200 Value ($000) $0 Avg Close $1.15 Range $0.83 - $1.52
Q4 2016
Shares 200 Value ($000) $0 Avg Close $1.47 Range $1.18 - $1.76
Q3 2016
Shares 200 Value ($000) $0 Avg Close $1.66 Range $1.34 - $1.95
Q2 2016
Shares 200 Value ($000) $0 Avg Close $1.91 Range $1.60 - $2.28
Q1 2016
Shares 200 Value ($000) $0 Avg Close $1.88 Range $1.30 - $2.25
Q4 2015
Shares 100 Value ($000) $0 Avg Close $2.20 Range $1.76 - $2.98
Q3 2015
Shares 100 Value ($000) $0 Avg Close $2.13 Range $1.56 - $2.85
Q2 2015
Shares 100 Value ($000) $0 Avg Close $2.62 Range $2.32 - $2.85
Q1 2015
Shares 100 Value ($000) $0 Avg Close $2.90 Range $2.42 - $3.38
Q4 2014
Shares 100 Value ($000) $0 Avg Close $3.98 Range $2.60 - $5.48
Q3 2014
Shares 100 Value ($000) $0 Avg Close $5.15 Range $4.00 - $6.47