Citadel Advisors
AOSL icon

Citadel Advisors’s Alpha and Omega Semiconductor AOSL Stock Holding History

Citadel Advisors’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
2026
Q1 		$975K Buy
44,000
+20,900
+90% +$455K ﹤0.01% 7715
2025
Q4 		$458K Buy
23,100
+1,500
+7% +$35.4K ﹤0.01% 9239
2025
Q3 		$604K Buy
+21,600
New +$600K ﹤0.01% 8666
2025
Q2 		– Sell
-78,300
Closed -$1.95M – 12414
2025
Q1 		$1.95M Buy
78,300
+26,400
+51% +$884K ﹤0.01% 5585
2024
Q4 		$1.92M Buy
51,900
+40,100
+340% +$1.49M ﹤0.01% 5715
2024
Q3 		$438K Buy
11,800
+5,400
+84% +$205K ﹤0.01% 8533
2024
Q2 		$239K Sell
6,400
-3,400
-35% -$89.8K ﹤0.01% 9570
2024
Q1 		$216K Buy
9,800
+2,400
+32% +$58K ﹤0.01% 10153
2023
Q4 		$193K Buy
7,400
+1,000
+16% +$24.7K ﹤0.01% 10012
2023
Q3 		$191K Sell
6,400
-30,200
-83% -$939K ﹤0.01% 9990
2023
Q2 		$1.2M Sell
36,600
-200
-0.5% -$5.38K ﹤0.01% 6078
2023
Q1 		$992K Buy
36,800
+9,700
+36% +$282K ﹤0.01% 6801
2022
Q4 		$774K Sell
27,100
-3,100
-10% -$100K ﹤0.01% 7325
2022
Q3 		$929K Sell
30,200
-23,500
-44% -$870K ﹤0.01% 7155
2022
Q2 		$1.79M Sell
53,700
-92,700
-63% -$3.8M ﹤0.01% 5777
2022
Q1 		$8M Buy
146,400
+39,400
+37% +$2.05M ﹤0.01% 3319
2021
Q4 		$6.48M Buy
107,000
+49,400
+86% +$2.14M ﹤0.01% 3850
2021
Q3 		$1.81M Buy
57,600
+21,000
+57% +$582K ﹤0.01% 6626
2021
Q2 		$1.11M Sell
36,600
-6,600
-15% -$203K ﹤0.01% 8089
2021
Q1 		$1.41M Buy
+43,200
New +$1.42M ﹤0.01% 7247

Other funds holding AOSL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Citadel Advisors's AOSL Position: Q1 2026 in Review

Citadel Advisors reduced its Alpha and Omega Semiconductor (AOSL) stake by 67% in Q1 2026, selling an estimated $1.57M and leaving 36,434 shares worth $807K. The position accounts for ﹤0.01% of the portfolio, ranked #8165.

Citadel Advisors first reported a position in AOSL in Q4 2013 and has held it in 41 quarters since. The position peaked at $6.84M in Q3 2023. 180 funds tracked by Wall St. Rank hold AOSL as of Q1 2026.

  • Citadel Advisors held 36,434 shares of Alpha and Omega Semiconductor worth $807K as of Q1 2026.
  • Citadel Advisors sold 72,384 Alpha and Omega Semiconductor shares in Q1 2026, an estimated $1.57M.
  • Alpha and Omega Semiconductor made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #8165 holding.
  • Citadel Advisors first reported a position in Alpha and Omega Semiconductor in Q4 2013 and has held it in 41 quarters since.
  • Citadel Advisors's Alpha and Omega Semiconductor position peaked at $6.84M in Q3 2023.
  • 180 funds tracked by Wall St. Rank held Alpha and Omega Semiconductor as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.