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AOSL — ALPHA & OMEGA SEMICONDUCTOR

Reported value held$639.92M
Funds holding (latest)42
SectorTechnology
Funds holding (Q2 2026)33
Institutional value$585.21M · 12.41M sh
New / Add / Cut / Exit2 / 16 / 14 / 3
Top-5 / Top-10 concentration65.0% / 80.5%
Institutional holdings change Accumulating +5.5% (+652.40K sh)
Institutional value change Up +125.3%

As of Q2 2026, 33 SEC-registered investment managers reported holding AOSL (ALPHA & OMEGA SEMICONDUCTOR) in their latest 13F filings, with a combined reported value of $585.21M across 12.41M shares. That is +5.5% by share count (+652.40K shares) versus the previous quarter, while reported value moved +125.3%. Ownership is concentrated: the five largest holders account for 65.0% of reported value and the top ten for 80.5%.

Compared with the prior quarter, 2 opened new positions, 16 added to existing stakes, 14 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

AOSL is classified in the Technology sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 4.26M $201.46M 0.00% Add
Manulife Financial history Q2 2026 1.38M $65.08M 0.05% Reduce
Vanguard Group history Q4 2025 2.42M $48.03M 0.00% Reduce
Two Sigma Investments history Q2 2026 951.58K $45.04M 0.04% Add
Fidelity Management & Research (FMR) history Q2 2026 791.72K $37.47M 0.00% Add
Geode Capital Management history Q2 2026 658.90K $31.19M 0.00% Add
Citadel Advisors history Q2 2026 476.37K $22.55M 0.00% Add
Wellington Management Group history Q2 2026 412.91K $19.54M 0.00% Reduce
Charles Schwab Investment Management history Q2 2026 403.20K $19.08M 0.00% Reduce
Millennium Management history Q2 2026 317.65K $15.03M 0.01% Add
Royce & Associates history Q2 2026 309.01K $14.63M 0.12% Reduce
D. E. Shaw & Co history Q2 2026 284.23K $13.45M 0.01% Add
Goldman Sachs Group history Q2 2026 279.11K $13.21M 0.00% Add
Northern Trust Corp history Q2 2026 261.02K $12.35M 0.00% Add
Morgan Stanley history Q2 2026 217.18K $10.28M 0.00% Add
Invesco Ltd history Q2 2026 207.84K $9.84M 0.00% Reduce
Bank of America Corp history Q2 2026 145.24K $6.87M 0.00% Add
BNY Mellon history Q2 2026 141.44K $6.69M 0.00% Add
UBS Group AG history Q2 2026 135.12K $6.40M 0.00% Reduce
Citigroup Inc history Q2 2026 133.60K $6.32M 0.00% Add

View all 42 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 3.80M 3.93M 3.77M 3.86M 3.85M 3.91M 3.90M 4.26M
Manulife Financial 11.63K 11.11K 466.84K 510.61K 592.56K 659.82K 766.58K 807.64K 1.01M 1.09M 1.12M 1.28M 1.21M 1.19M 1.25M 1.41M 1.56M 1.63M 1.57M 1.38M
Two Sigma Investments 240.15K 243.57K 62.29K 48.17K 8.66K 9.46K 66.44K 123.47K 65.63K 54.10K 94.05K — 46.10K 125.09K 70.19K 196.90K 162.32K 278.12K 553.01K 951.58K
Fidelity Management & Research (FMR) 805.30K 805.30K 890.27K 624.60K 558.35K 558.20K 513.43K 514.20K 514.04K 513.55K 668.70K 587.77K 518.32K 536.93K 547.98K 514.46K 515.04K 515.10K 544.71K 791.72K
Geode Capital Management 468.07K 481.61K 389.44K 382.67K 391.16K 407.93K 431.83K 461.43K 475.44K 504.42K 513.68K 547.42K 578.71K 580.56K 598.89K 601.67K 607.48K 611.09K 628.67K 658.90K
Citadel Advisors 113.00K 208.84K 256.78K 118.40K 154.56K 131.32K 284.97K 280.38K 250.66K 206.80K 188.05K 129.66K 55.58K 202.54K 150.52K 64.27K 54.20K 131.92K 91.43K 476.37K
Wellington Management Group — — — — — — — 75.50K 293.30K 348.70K 722.51K 810.43K 563.25K 633.35K 908.04K 751.89K 864.97K 1.03M 694.81K 412.91K
Charles Schwab Investment Management 123.80K 126.33K 77.54K 57.03K 161.25K 165.10K 168.09K 175.43K 181.68K 177.87K 222.08K 224.61K 223.36K 224.81K 241.75K 301.04K 344.60K 393.77K 420.43K 403.20K
Millennium Management 264.15K 51.00K 105.27K 7.19K 128.53K 93.43K 43.07K 22.18K 16.60K — 14.19K 137.28K 9.03K 256.71K — 405.06K 637.88K 59.98K 197.78K 317.65K
Royce & Associates 567.20K 246.00K 197.90K 327.88K 486.72K 524.73K 547.42K 515.74K 416.58K 376.08K 415.41K 435.27K 412.07K 367.59K 345.31K 430.93K 427.35K 474.01K 518.12K 309.01K
D. E. Shaw & Co 222.03K 98.76K 53.58K 52.93K 38.25K 20.73K 8.61K 8.82K — 14.49K 30.48K 5.41K — — — — — 160.59K 279.59K 284.23K
Goldman Sachs Group 135.94K 35.75K 60.31K 62.29K 52.24K 59.17K 74.97K 92.79K 57.58K 58.60K 49.04K 168.95K 91.07K 157.27K 120.35K 468.92K 370.35K 447.02K 267.68K 279.11K
Northern Trust Corp 227.59K 240.47K 234.35K 247.07K 249.45K 244.17K 246.54K 246.28K 248.85K 250.54K 240.51K 234.09K 239.15K 261.45K 252.04K 250.06K 251.88K 235.87K 246.79K 261.02K
Morgan Stanley 120.21K 131.26K 98.83K 245.89K 256.71K 213.40K 136.97K 131.80K 171.84K 239.73K 205.03K 206.60K 220.34K 285.74K 361.17K 241.19K 262.82K 228.23K 196.90K 217.18K
Invesco Ltd 35.09K 184.80K 559.86K 706.55K 660.46K 384.31K 386.98K 152.46K 157.97K 195.81K 267.60K 218.48K 759.36K 149.17K 759.51K 328.17K 318.63K 381.77K 375.77K 207.84K
Bank of America Corp 11.10K 13.65K 19.05K 24.46K 39.55K 37.08K 46.20K 35.76K 46.91K 66.30K 50.90K 65.47K 51.66K 58.48K 264.99K 242.78K 179.30K 221.30K 127.69K 145.24K
BNY Mellon 76.19K 76.71K 78.08K 195.82K 204.71K 201.37K 183.20K 185.89K 178.83K 172.78K 162.93K 170.24K 143.92K 147.40K 140.57K 144.30K 146.65K 145.31K 139.53K 141.44K
UBS Group AG 11.85K 29.02K 24.20K 3.77K 10.34K 16.29K 10.33K 17.37K 10.32K 23.38K 17.59K 31.33K 22.62K 103.21K 148.45K 21.94K 66.87K 217.12K 188.74K 135.12K
Citigroup Inc 6.23K 15.00K 13.27K 19.47K 24.21K 20.95K 18.20K 22.30K 14.61K 18.34K 20.16K 18.73K 35.77K 38.10K 37.65K 25.97K 11.77K 8.72K 6.77K 133.60K
Principal Global Investors — 30.89K 18.31K 158.57K 145.94K 146.35K 142.81K 126.73K 121.01K 117.44K 118.98K 114.67K 111.97K 115.44K 120.11K 120.98K 119.32K 118.90K 120.08K 120.06K

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