Ardsley Advisory Partners’s Plug Power PLUG Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-250,000	Closed	-$373K	–	186
2025 Q2	$373K	Buy	+250,000	New	+$249K	0.05%	135
2022 Q3	–	Sell	-77,500	Closed	-$1.28M	–	142
2022 Q2	$1.28M	Buy	+77,500	New	+$1.54M	0.21%	73
2021 Q4	–	Sell	-25,000	Closed	-$640K	–	149
2021 Q3	$640K	Sell	25,000 -100,000	-80%	-$2.68M	0.1%	94
2021 Q2	$4.27M	Buy	+125,000	New	+$3.63M	0.5%	46
2020 Q4	–	Sell	-48,000	Closed	-$644K	–	180
2020 Q3	$644K	Sell	48,000 -143,000	-75%	-$1.58M	0.12%	87
2020 Q2	$1.57M	Buy	+191,000	New	+$894K	0.33%	43
2020 Q1	–	Sell	-150,000	Closed	-$468K	–	146
2019 Q4	$468K	Buy	+150,000	New	+$456K	0.07%	104
2016 Q2	–	Sell	-150,000	Closed	-$308K	–	187
2016 Q1	$308K	Buy	+150,000	New	+$282K	0.05%	95
2014 Q2	–	Sell	-101,600	Closed	-$721K	–	278
2014 Q1	$721K	Buy	+101,600	New	+$470K	0.11%	104