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 		$244K Buy
+11,000
New +$239K ﹤0.01% 10972
2025
Q4 		– Sell
-32,600
Closed -$911K – 12588
2025
Q3 		$911K Sell
32,600
-11,200
-26% -$311K ﹤0.01% 7737
2025
Q2 		$1.12M Sell
43,800
-11,900
-21% -$259K ﹤0.01% 6836
2025
Q1 		$1.38M Buy
55,700
+7,600
+16% +$254K ﹤0.01% 6246
2024
Q4 		$1.78M Buy
48,100
+21,100
+78% +$786K ﹤0.01% 5870
2024
Q3 		$1M Buy
27,000
+11,900
+79% +$452K ﹤0.01% 6862
2024
Q2 		$564K Buy
15,100
+3,600
+31% +$95.1K ﹤0.01% 7816
2024
Q1 		$253K Sell
11,500
-5,700
-33% -$138K ﹤0.01% 9830
2023
Q4 		$448K Buy
17,200
+2,100
+14% +$51.9K ﹤0.01% 8343
2023
Q3 		$451K Sell
15,100
-21,800
-59% -$678K ﹤0.01% 8284
2023
Q2 		$1.21M Sell
36,900
-104,200
-74% -$2.8M ﹤0.01% 6071
2023
Q1 		$3.8M Buy
141,100
+124,300
+740% +$3.61M ﹤0.01% 4268
2022
Q4 		$480K Sell
16,800
-13,800
-45% -$446K ﹤0.01% 8329
2022
Q3 		$941K Sell
30,600
-24,600
-45% -$910K ﹤0.01% 7124
2022
Q2 		$1.84M Sell
55,200
-46,900
-46% -$1.92M ﹤0.01% 5702
2022
Q1 		$5.58M Buy
102,100
+58,500
+134% +$3.04M ﹤0.01% 3961
2021
Q4 		$2.64M Buy
43,600
+20,700
+90% +$896K ﹤0.01% 5593
2021
Q3 		$718K Sell
22,900
-5,100
-18% -$141K ﹤0.01% 9005
2021
Q2 		$851K Buy
28,000
+7,200
+35% +$221K ﹤0.01% 8773
2021
Q1 		$680K Buy
+20,800
New +$683K ﹤0.01% 9007

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.