CM
AEIS icon

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
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 $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Castleark Management's AEIS Position: Q1 2026 in Review

Castleark Management reduced its Advanced Energy (AEIS) stake by 5.1% in Q1 2026, selling an estimated $727K and leaving 46,623 shares worth $15M. The position accounts for 0.5% of the portfolio, ranked #39.

Castleark Management first reported a position in AEIS in Q2 2025 and has held it in 4 quarters since. 575 funds tracked by Wall St. Rank hold AEIS as of Q1 2026.

  • Castleark Management held 46,623 shares of Advanced Energy worth $15M as of Q1 2026.
  • Castleark Management sold 2,510 Advanced Energy shares in Q1 2026, an estimated $727K.
  • Advanced Energy made up 0.5% of Castleark Management's portfolio in Q1 2026, its #39 holding.
  • Castleark Management first reported a position in Advanced Energy in Q2 2025 and has held it in 4 quarters since.
  • 575 funds tracked by Wall St. Rank held Advanced Energy as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.