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Castleark Management’s Advanced Energy AEIS Stock Holding History

Castleark Management’s Portfolio AEIS Stock Details AEIS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$6.04M Sell
16,193
-30,430
-65% -$10.6M 0.16% 145
2026
Q1 		$15M Sell
46,623
-2,510
-5% -$727K 0.5% 39
2025
Q4 		$10.3M Buy
49,133
+1,420
+3% +$289K 0.3% 63
2025
Q3 		$8.12M Buy
47,713
+1,823
+4% +$275K 0.23% 85
2025
Q2 		$6.08M Buy
+45,890
New +$5.05M 0.18% 106

Other funds holding AEIS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Castleark Management's AEIS Position: Q2 2026 in Review

Castleark Management reduced its Advanced Energy (AEIS) stake by 65% in Q2 2026, selling an estimated $10.6M and leaving 16,193 shares worth $6.04M. The position accounts for 0.16% of the portfolio, ranked #145.

Castleark Management first reported a position in AEIS in Q2 2025 and has held it in 5 quarters since. The position peaked at $15M in Q1 2026. 680 funds tracked by Wall St. Rank hold AEIS as of Q2 2026.

  • Castleark Management held 16,193 shares of Advanced Energy worth $6.04M as of Q2 2026.
  • Castleark Management sold 30,430 Advanced Energy shares in Q2 2026, an estimated $10.6M.
  • Advanced Energy made up 0.16% of Castleark Management's portfolio in Q2 2026, its #145 holding.
  • Castleark Management first reported a position in Advanced Energy in Q2 2025 and has held it in 5 quarters since.
  • Castleark Management's Advanced Energy position peaked at $15M in Q1 2026.
  • 680 funds tracked by Wall St. Rank held Advanced Energy as of Q2 2026.

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