Port Capital’s Solid Power SLDP Stock Holding History

Port Capital’s Portfolio SLDP Stock Details SLDP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$59.3K	Hold	19,750	–	–	﹤0.01%	82
2025 Q4	$83.9K	Hold	19,750	–	–	﹤0.01%	82
2025 Q3	$69K	Hold	19,750	–	–	﹤0.01%	84
2025 Q2	$43K	Hold	19,750	–	–	﹤0.01%	85
2025 Q1	$21K	Hold	19,750	–	–	﹤0.01%	87
2024 Q4	$37K	Hold	19,750	–	–	﹤0.01%	88
2024 Q3	$27K	Hold	19,750	–	–	﹤0.01%	87
2024 Q2	$33K	Hold	19,750	–	–	﹤0.01%	85
2024 Q1	$40K	Hold	19,750	–	–	﹤0.01%	87
2023 Q4	$29K	Buy	19,750 +8,675	+78%	+$13K	﹤0.01%	89
2023 Q3	$22K	Hold	11,075	–	–	﹤0.01%	80
2023 Q2	$28K	Buy	+11,075	New	+$25.6K	﹤0.01%	80

Other funds holding SLDP

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

HCM

Heights Capital Management San Francisco, California $359M AUM 7.93% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Riverstone Holdings New York $36.9M AUM 80.85% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Port Capital's SLDP Position: Q1 2026 in Review

Port Capital held its Solid Power (SLDP) position steady in Q1 2026 at 19,750 shares worth $59.3K. The position accounts for ﹤0.01% of the portfolio, ranked #82.

Port Capital first reported a position in SLDP in Q2 2023 and has held it in 12 quarters since. The position peaked at $83.9K in Q4 2025. 192 funds tracked by Wall St. Rank hold SLDP as of Q1 2026.

Port Capital held 19,750 shares of Solid Power worth $59.3K as of Q1 2026.
Port Capital left its Solid Power share count unchanged in Q1 2026.
Solid Power made up ﹤0.01% of Port Capital's portfolio in Q1 2026, its #82 holding.
Port Capital first reported a position in Solid Power in Q2 2023 and has held it in 12 quarters since.
Port Capital's Solid Power position peaked at $83.9K in Q4 2025.
192 funds tracked by Wall St. Rank held Solid Power as of Q1 2026.

Based on Port Capital's 13F filing for Q1 2026, filed 15 May 2026.