PCM
SEI

Portolan Capital Management’s Solaris Energy Infrastructure SEI Stock Holding History

Portolan Capital 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 		$8.64M Buy
107,401
+79,471
+285% +$5.68M 0.32% 87
2026
Q1 		$1.58M Buy
27,930
+8,456
+43% +$457K 0.08% 130
2025
Q4 		$895K Sell
19,474
-343,966
-95% -$16.6M 0.05% 143
2025
Q3 		$14.5M Buy
+363,440
New +$11.4M 0.79% 41

Other funds holding SEI

BlackRock
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Two Sigma Investments
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
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
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Portolan Capital Management's SEI Position: Q2 2026 in Review

Portolan Capital Management increased its Solaris Energy Infrastructure (SEI) stake by 285% in Q2 2026, buying an estimated $5.68M and bringing the position to 107,401 shares worth $8.64M. The position accounts for 0.32% of the portfolio, ranked #87.

Portolan Capital Management first reported a position in SEI in Q3 2025 and has held it in 4 quarters since. The position peaked at $14.5M in Q3 2025. 433 funds tracked by Wall St. Rank hold SEI as of Q2 2026.

  • Portolan Capital Management held 107,401 shares of Solaris Energy Infrastructure worth $8.64M as of Q2 2026.
  • Portolan Capital Management bought 79,471 Solaris Energy Infrastructure shares in Q2 2026, an estimated $5.68M.
  • Solaris Energy Infrastructure made up 0.32% of Portolan Capital Management's portfolio in Q2 2026, its #87 holding.
  • Portolan Capital Management first reported a position in Solaris Energy Infrastructure in Q3 2025 and has held it in 4 quarters since.
  • Portolan Capital Management's Solaris Energy Infrastructure position peaked at $14.5M in Q3 2025.
  • 433 funds tracked by Wall St. Rank held Solaris Energy Infrastructure as of Q2 2026.

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