Castleark Management’s Solaris Energy Infrastructure SEI Stock Holding History

Castleark Management’s Portfolio SEI Stock Details SEI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$10.1M	Buy	125,806 +31,550	+33%	+$2.25M	0.27%	82
2026 Q1	$5.33M	Sell	94,256 -56,740	-38%	-$3.07M	0.18%	139
2025 Q4	$6.94M	Sell	150,996 -42,930	-22%	-$2.08M	0.2%	119
2025 Q3	$7.75M	Buy	193,926 +116,896	+152%	+$3.66M	0.22%	95
2025 Q2	$2.18M	Buy	77,030 +60	+0.1%	+$1.41K	0.07%	181
2025 Q1	$1.67M	Sell	76,970 -54,660	-42%	-$1.52M	0.06%	194
2024 Q4	$3.79M	Buy	+131,630	New	+$2.62M	0.13%	158

Other funds holding SEI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

ECA

Encompass Capital Advisors New York $2.81B AUM 198.36% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

SPPAM

Summit Partners Public Asset Management Boston, Massachusetts $5.69B AUM 259.25% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

VCM

Valiant Capital Management San Francisco, California $2.48B AUM 57.08% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Castleark Management's SEI Position: Q2 2026 in Review

Castleark Management increased its Solaris Energy Infrastructure (SEI) stake by 33% in Q2 2026, buying an estimated $2.25M and bringing the position to 125,806 shares worth $10.1M. The position accounts for 0.27% of the portfolio, ranked #82.

Castleark Management first reported a position in SEI in Q4 2024 and has held it in 7 quarters since. 432 funds tracked by Wall St. Rank hold SEI as of Q2 2026.

Castleark Management held 125,806 shares of Solaris Energy Infrastructure worth $10.1M as of Q2 2026.
Castleark Management bought 31,550 Solaris Energy Infrastructure shares in Q2 2026, an estimated $2.25M.
Solaris Energy Infrastructure made up 0.27% of Castleark Management's portfolio in Q2 2026, its #82 holding.
Castleark Management first reported a position in Solaris Energy Infrastructure in Q4 2024 and has held it in 7 quarters since.
432 funds tracked by Wall St. Rank held Solaris Energy Infrastructure as of Q2 2026.

Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.