CITADEL ADVISORS LLC AOSL — SEMICONDUCTOR Cmn

Ownership history in CITADEL ADVISORS LLC  ·  83 quarters on record

AI Ownership Summary

CITADEL ADVISORS LLC reported SEMICONDUCTOR Cmn (AOSL) in 83 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows AOSL at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this AOSL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CITADEL ADVISORS LLC's position in SEMICONDUCTOR Cmn, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

AOSL was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

AOSL stock page CITADEL ADVISORS LLC fund profile CITADEL ADVISORS LLC full holdings
How CITADEL ADVISORS LLC held AOSL — position size vs. price
% of Fund (quarterly)    AOSL price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 27 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 36,434 -7,566 -17.2% 0.00% $807K 2026-05-15 $38.87
2026 Q1 ADDED — — — 44,000 +33,000 +300.0% 0.00% $975K 2026-05-15 $38.87
2026 Q1 REDUCED — — — 11,000 -97,818 -89.9% 0.00% $244K 2026-05-15 $38.87
2025 Q4 ADDED — — — 108,818 +85,718 +371.1% 0.00% $2.2M 2026-02-17 $22.71
2025 Q4 ADDED — — — 23,100 +1,500 +6.9% 0.00% $458K 2026-02-17 $22.71
2025 Q3 REDUCED 33.7% -28.1% ✅ 21,600 -11,000 -33.7% 0.00% $604K 2025-11-14 $18.46
2025 Q3 ADDED — — — 32,600 +12,127 +59.2% 0.00% $911K 2025-11-14 $18.46
2025 Q2 REDUCED 53.3% +8.0% ❌ 20,473 -23,327 -53.3% 0.00% $525K 2025-08-14 $27.06
2025 Q2 ADDED — — — 43,800 +27,277 +165.1% 0.00% $1.1M 2025-08-14 $27.06
2025 Q1 REDUCED 78.9% +3.2% ❌ 16,523 -61,777 -78.9% 0.00% $411K 2025-05-15 $23.46
2025 Q1 ADDED — — — 78,300 +22,600 +40.6% 0.00% $1.9M 2025-05-15 $23.46
2025 Q1 REDUCED 45.7% +3.2% ❌ 55,700 -46,836 -45.7% 0.00% $1.4M 2025-05-15 $23.46
2024 Q4 ADDED — — — 102,536 +50,636 +97.6% 0.00% $3.8M 2025-02-14 $34.74
2024 Q4 ADDED — — — 51,900 +3,800 +7.9% 0.00% $1.9M 2025-02-14 $34.74
2024 Q4 ADDED — — — 48,100 +31,317 +186.6% 0.00% $1.8M 2025-02-14 $34.74
2024 Q3 ADDED — — — 16,783 +4,983 +42.2% 0.00% $623K 2024-11-14 $29.85
2024 Q3 REDUCED 56.3% -0.5% ✅ 11,800 -15,200 -56.3% 0.00% $438K 2024-11-14 $29.85
2024 Q3 REDUCED 75.0% -0.5% ✅ 27,000 -81,164 -75.0% 0.00% $1.0M 2024-11-14 $29.85
2024 Q2 ADDED — — — 108,164 +101,764 +1590.1% 0.00% $4.0M 2024-08-14 $35.09
2024 Q2 REDUCED 57.6% -0.7% ✅ 6,400 -8,700 -57.6% 0.00% $239K 2024-08-14 $35.09
2024 Q2 REDUCED 90.9% -0.7% ✅ 15,100 -151,649 -90.9% 0.00% $564K 2024-08-14 $35.09
2024 Q1 ADDED — — — 166,749 +156,949 +1601.5% 0.00% $3.7M 2024-05-15 $27.79
2024 Q1 REDUCED 14.8% +73.5% ❌ 9,800 -1,700 -14.8% 0.00% $216K 2024-05-15 $27.79
2024 Q1 REDUCED 93.7% +73.5% ❌ 11,500 -170,697 -93.7% 0.00% $253K 2024-05-15 $27.79
2023 Q4 ADDED — — — 182,197 +174,797 +2362.1% 0.00% $4.7M 2024-02-14 $22.89
2023 Q4 REDUCED 57.0% -15.3% ✅ 7,400 -9,800 -57.0% 0.00% $193K 2024-02-14 $22.89
2023 Q4 REDUCED 92.5% -15.3% ✅ 17,200 -211,955 -92.5% 0.00% $448K 2024-02-14 $22.89
56 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding AOSL

As of 2026 Q1 — sorted by position size

WEBER CAPITAL MANAGEMENT LLC /ADV 12.0% Gagnon Advisors, LLC 3Y 7Y 1.96% GAGNON SECURITIES LLC 3Y 7Y 0.86% Mork Capital Management, LLC 3Y 7Y 0.71% Uniplan Investment Counsel, Inc. 3Y 7Y 0.34% Numerai GP LLC 3Y 0.22% PEREGRINE CAPITAL MANAGEMENT LLC 3Y 7Y 0.13% Counterpoint Mutual Funds LLC 3Y 0.13% ROYCE & ASSOCIATES LP 3Y 7Y 0.11% Redwood Wealth Management Group, LLC 3Y 0.11%

FAQ About CITADEL ADVISORS LLC and AOSL

These are the practical questions this page is built to answer before you even open the full history table.

How long has CITADEL ADVISORS LLC reported owning AOSL?

CITADEL ADVISORS LLC reported AOSL across 27 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported AOSL position in CITADEL ADVISORS LLC's portfolio?

The largest reported portfolio weight for AOSL was 0.00% in 2023 Q4.

What is the latest reported AOSL position on this page?

The most recent filing on this page is 2026 Q1, when CITADEL ADVISORS LLC reported 36,434 shares, equal to 0.00% of portfolio, with an estimated market value of $807K.

What does the chart on this AOSL ownership page compare?

The chart compares CITADEL ADVISORS LLC's quarterly AOSL portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CITADEL ADVISORS LLC time their AOSL position?

Based on 13F filing dates vs. subsequent AOSL price moves, CITADEL ADVISORS LLC correctly timed 43 out of 82 reported position changes (52%). The annualised alpha on AOSL relative to SPY over the holding period was -15.8%.

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