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Castleark Management’s Nextpower Inc. Common Stock NXT Stock Holding History

Castleark Management’s Portfolio NXT Stock Details NXT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.07M Sell
17,350
-96,724
-85% -$11.9M 0.06% 202
2026
Q1 		$13.8M Buy
114,074
+8,590
+8% +$952K 0.46% 47
2025
Q4 		$9.19M Sell
105,484
-11,570
-10% -$1.05M 0.27% 72
2025
Q3 		$8.66M Buy
117,054
+112,244
+2,334% +$7.23M 0.24% 79
2025
Q2 		$262K Buy
+4,810
New +$241K 0.01% 245
2024
Q2 		– Sell
-102,405
Closed -$5.76M – 295
2024
Q1 		$5.76M Buy
+102,405
New +$5.45M 0.24% 98

Other funds holding NXT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $13.6B AUM 7.6% 1-Year Est. Return

Castleark Management's NXT Position: Q2 2026 in Review

Castleark Management reduced its Nextpower Inc. Common Stock (NXT) stake by 85% in Q2 2026, selling an estimated $11.9M and leaving 17,350 shares worth $2.07M. The position accounts for 0.06% of the portfolio, ranked #202.

Castleark Management first reported a position in NXT in Q1 2024 and has held it in 6 quarters since. The position peaked at $13.8M in Q1 2026. 724 funds tracked by Wall St. Rank hold NXT as of Q2 2026.

  • Castleark Management held 17,350 shares of Nextpower Inc. Common Stock worth $2.07M as of Q2 2026.
  • Castleark Management sold 96,724 Nextpower Inc. Common Stock shares in Q2 2026, an estimated $11.9M.
  • Nextpower Inc. Common Stock made up 0.06% of Castleark Management's portfolio in Q2 2026, its #202 holding.
  • Castleark Management first reported a position in Nextpower Inc. Common Stock in Q1 2024 and has held it in 6 quarters since.
  • Castleark Management's Nextpower Inc. Common Stock position peaked at $13.8M in Q1 2026.
  • 724 funds tracked by Wall St. Rank held Nextpower Inc. Common Stock as of Q2 2026.

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