Ardsley Advisory Partners’s Altus Power AMPS Stock Holding History

Ardsley Advisory Partners’s Portfolio AMPS Stock Details AMPS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-80,000	Closed	-$326K	–	218
2024 Q4	$326K	Sell	80,000 -1,536,000	-95%	-$5.62M	0.05%	138
2024 Q3	$5.14M	Buy	1,616,000 +90,000	+6%	+$321K	0.85%	48
2024 Q2	$5.98M	Sell	1,526,000 -179,500	-11%	-$746K	0.88%	35
2024 Q1	$8.15M	Buy	1,705,500 +188,000	+12%	+$1.12M	1.17%	23
2023 Q4	$10.4M	Buy	1,517,500 +392,500	+35%	+$2.12M	1.6%	15
2023 Q3	$5.91M	Buy	1,125,000 +96,687	+9%	+$592K	1.32%	22
2023 Q2	$5.55M	Buy	1,028,313 +92,113	+10%	+$454K	0.94%	33
2023 Q1	$5.13M	Sell	936,200 -513,800	-35%	-$3.61M	1.13%	34
2022 Q4	$9.45M	Sell	1,450,000 -408,500	-22%	-$3.34M	1.96%	20
2022 Q3	$20.5M	Buy	1,858,500 +423,500	+30%	+$4.04M	4.58%	5
2022 Q2	$9.05M	Buy	1,435,000 +50,000	+4%	+$334K	1.49%	18
2022 Q1	$10.3M	Sell	1,385,000 -17,500	-1%	-$137K	1.72%	14
2021 Q4	$14.7M	Buy	+1,402,500	New	+$14.2M	2.79%	9

Other funds holding AMPS

Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

LMGAM

Liberty Mutual Group Asset Management Boston, Massachusetts $1.25B AUM 45.27% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Ardsley Advisory Partners's AMPS Position: Q1 2025 in Review

Ardsley Advisory Partners sold out of Altus Power (AMPS) in Q1 2025, closing a stake of 80,000 shares — an estimated $326K sold.

Ardsley Advisory Partners first reported a position in AMPS in Q4 2021 and held it in 13 quarters. The position peaked at $20.5M in Q3 2022. 156 funds tracked by Wall St. Rank hold AMPS as of Q1 2025.

Ardsley Advisory Partners reported no remaining Altus Power position as of Q1 2025 after selling out during the quarter.
Ardsley Advisory Partners sold 80,000 Altus Power shares in Q1 2025, an estimated $326K.
Ardsley Advisory Partners first reported a position in Altus Power in Q4 2021 and held it in 13 quarters.
Ardsley Advisory Partners's Altus Power position peaked at $20.5M in Q3 2022.
156 funds tracked by Wall St. Rank held Altus Power as of Q1 2025.

Based on Ardsley Advisory Partners's 13F filing for Q1 2025, filed 15 May 2025.