BlackRock’s Alpha and Omega Semiconductor AOSL Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$201M Buy
4,256,528
+351,752
+9% +$14.1M ﹤0.01% 1793
2026
Q1
$86.5M Sell
3,904,776
-4,115
-0.1% -$89.5K ﹤0.01% 2193
2025
Q4
$77.4M Buy
3,908,891
+63,596
+2% +$1.5M ﹤0.01% 2254
2025
Q3
$108M Sell
3,845,295
-12,659
-0.3% -$351K ﹤0.01% 2060
2025
Q2
$99M Buy
3,857,954
+89,160
+2% +$1.94M ﹤0.01% 2056
2025
Q1
$93.7M Sell
3,768,794
-162,439
-4% -$5.44M ﹤0.01% 2028
2024
Q4
$146M Buy
3,931,233
+135,340
+4% +$5.04M ﹤0.01% 1847
2024
Q3
$141M Buy
3,795,893
+67,892
+2% +$2.58M ﹤0.01% 1875
2024
Q2
$139M Sell
3,728,001
-29,501
-0.8% -$780K ﹤0.01% 1837
2024
Q1
$82.8M Sell
3,757,502
-59,882
-2% -$1.45M ﹤0.01% 2168
2023
Q4
$99.5M Buy
3,817,384
+259,840
+7% +$6.42M ﹤0.01% 2079
2023
Q3
$106M Sell
3,557,544
-61,113
-2% -$1.9M ﹤0.01% 1952
2023
Q2
$119M Buy
3,618,657
+142,476
+4% +$3.83M ﹤0.01% 1932
2023
Q1
$93.7M Sell
3,476,181
-82,331
-2% -$2.39M ﹤0.01% 2062
2022
Q4
$102M Buy
3,558,512
+51,410
+1% +$1.66M ﹤0.01% 1986
2022
Q3
$108M Buy
3,507,102
+66,364
+2% +$2.46M ﹤0.01% 1905
2022
Q2
$115M Buy
3,440,738
+1,979,761
+136% +$81.1M ﹤0.01% 1923
2022
Q1
$79.8M Buy
1,460,977
+7,050
+0.5% +$367K ﹤0.01% 2278
2021
Q4
$88.1M Sell
1,453,927
-7,989
-0.5% -$346K ﹤0.01% 2291
2021
Q3
$45.9M Sell
1,461,916
-11,727
-0.8% -$325K ﹤0.01% 2715
2021
Q2
$44.8M Sell
1,473,643
-101,898
-6% -$3.13M ﹤0.01% 2777
2021
Q1
$51.5M Buy
1,575,541
+132,333
+9% +$4.35M ﹤0.01% 2591
2020
Q4
$34.1M Buy
1,443,208
+131,776
+10% +$2.69M ﹤0.01% 2710
2020
Q3
$16.8M Sell
1,311,432
-9,899
-0.7% -$119K ﹤0.01% 2956
2020
Q2
$14.4M Sell
1,321,331
-121,516
-8% -$1.24M ﹤0.01% 2984
2020
Q1
$9.25M Sell
1,442,847
-27,870
-2% -$303K ﹤0.01% 3039
2019
Q4
$20M Sell
1,470,717
-31,227
-2% -$395K ﹤0.01% 2884
2019
Q3
$18.4M Buy
1,501,944
+34,778
+2% +$384K ﹤0.01% 2859
2019
Q2
$13.7M Sell
1,467,166
-103,363
-7% -$1.08M ﹤0.01% 3058
2019
Q1
$18.1M Sell
1,570,529
-201,652
-11% -$2.23M ﹤0.01% 2790
2018
Q4
$18.1M Sell
1,772,181
-69,309
-4% -$714K ﹤0.01% 2775
2018
Q3
$21.4M Sell
1,841,490
-74,854
-4% -$1.03M ﹤0.01% 2832
2018
Q2
$27.3M Sell
1,916,344
-26,095
-1% -$402K ﹤0.01% 2687
2018
Q1
$30M Sell
1,942,439
-137,385
-7% -$2.22M ﹤0.01% 2542
2017
Q4
$34M Buy
2,079,824
+8,060
+0.4% +$141K ﹤0.01% 2495
2017
Q3
$34.2M Buy
2,071,764
+103,182
+5% +$1.69M ﹤0.01% 2504
2017
Q2
$32.8M Buy
1,968,582
+90,691
+5% +$1.61M ﹤0.01% 2493
2017
Q1
$32.3M Buy
1,877,891
+1,858,055
+9,367% +$36.8M ﹤0.01% 2474
2016
Q4
$422K Buy
19,836
+3,362
+20% +$72.6K ﹤0.01% 1777
2016
Q3
$358K Buy
16,474
+7,225
+78% +$130K ﹤0.01% 1872
2016
Q2
$129K Buy
9,249
+8,565
+1,252% +$115K ﹤0.01% 2372
2016
Q1
$8K Buy
+684
New +$7.21K ﹤0.01% 3232

Other funds holding AOSL

BlackRock's AOSL Position: Q2 2026 in Review

BlackRock increased its Alpha and Omega Semiconductor (AOSL) stake by 9% in Q2 2026, buying an estimated $14.1M and bringing the position to 4,256,528 shares worth $201M. The position accounts for ﹤0.01% of the portfolio, ranked #1793.

BlackRock first reported a position in AOSL in Q1 2016 and has held it in 42 quarters since. 216 funds tracked by Wall St. Rank hold AOSL as of Q2 2026.

  • BlackRock held 4,256,528 shares of Alpha and Omega Semiconductor worth $201M as of Q2 2026.
  • BlackRock bought 351,752 Alpha and Omega Semiconductor shares in Q2 2026, an estimated $14.1M.
  • Alpha and Omega Semiconductor made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #1793 holding.
  • BlackRock first reported a position in Alpha and Omega Semiconductor in Q1 2016 and has held it in 42 quarters since.
  • 216 funds tracked by Wall St. Rank held Alpha and Omega Semiconductor as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.