MP
SEI

Mangrove Partners’s Solaris Energy Infrastructure SEI Stock Holding History

Mangrove Partners’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 		$215K Sell
2,670
-1,756
-40% -$125K 0.01% 355
2026
Q1 		$250K Sell
4,426
-4,754
-52% -$257K 0.02% 289
2025
Q4 		$422K Buy
+9,180
New +$444K 0.03% 177
2025
Q2 		– Sell
-10,141
Closed -$221K – 231
2025
Q1 		$221K Buy
+10,141
New +$281K 0.02% 141

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

Mangrove Partners's SEI Position: Q2 2026 in Review

Mangrove Partners reduced its Solaris Energy Infrastructure (SEI) stake by 40% in Q2 2026, selling an estimated $125K and leaving 2,670 shares worth $215K. The position accounts for 0.01% of the portfolio, ranked #355.

Mangrove Partners first reported a position in SEI in Q1 2025 and has held it in 4 quarters since. The position peaked at $422K in Q4 2025. 432 funds tracked by Wall St. Rank hold SEI as of Q2 2026.

  • Mangrove Partners held 2,670 shares of Solaris Energy Infrastructure worth $215K as of Q2 2026.
  • Mangrove Partners sold 1,756 Solaris Energy Infrastructure shares in Q2 2026, an estimated $125K.
  • Solaris Energy Infrastructure made up 0.01% of Mangrove Partners's portfolio in Q2 2026, its #355 holding.
  • Mangrove Partners first reported a position in Solaris Energy Infrastructure in Q1 2025 and has held it in 4 quarters since.
  • Mangrove Partners's Solaris Energy Infrastructure position peaked at $422K in Q4 2025.
  • 432 funds tracked by Wall St. Rank held Solaris Energy Infrastructure as of Q2 2026.

Based on Mangrove Partners's 13F filing for Q2 2026, filed 14 Aug 2026.