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Ardsley Advisory Partners’s Alpha and Omega Semiconductor AOSL Stock Holding History

Ardsley Advisory Partners’s Portfolio AOSL Stock Details AOSL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-53,700
Closed -$1.33M – 157
2025
Q1 		$1.33M Buy
+53,700
New +$1.8M 0.26% 92

Other funds holding AOSL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
RS
Robeco Schweiz Zurich, Switzerland $4.73B AUM 58.9% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ardsley Advisory Partners's AOSL Position: Q2 2025 in Review

Ardsley Advisory Partners sold out of Alpha and Omega Semiconductor (AOSL) in Q2 2025, closing a stake of 53,700 shares — an estimated $1.33M sold.

Ardsley Advisory Partners first reported a position in AOSL in Q1 2025 and held it in 1 quarter. The position peaked at $1.33M in Q1 2025. 164 funds tracked by Wall St. Rank hold AOSL as of Q2 2025.

  • Ardsley Advisory Partners reported no remaining Alpha and Omega Semiconductor position as of Q2 2025 after selling out during the quarter.
  • Ardsley Advisory Partners sold 53,700 Alpha and Omega Semiconductor shares in Q2 2025, an estimated $1.33M.
  • Ardsley Advisory Partners first reported a position in Alpha and Omega Semiconductor in Q1 2025 and held it in 1 quarter.
  • Ardsley Advisory Partners's Alpha and Omega Semiconductor position peaked at $1.33M in Q1 2025.
  • 164 funds tracked by Wall St. Rank held Alpha and Omega Semiconductor as of Q2 2025.

Based on Ardsley Advisory Partners's 13F filing for Q2 2025, filed 14 Aug 2025.