ABUS ARBUTUS BIOPHARMA CORP

Ownership history in CITADEL ADVISORS LLC  ·  83 quarters on record

AI Ownership Summary

CITADEL ADVISORS LLC reported ARBUTUS BIOPHARMA CORP (ABUS) in 83 quarterly 13F filings from 2023 Q4 through 2025 Q4. The latest visible filing shows ABUS 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 ABUS 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 ARBUTUS BIOPHARMA CORP, 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
2025 Q4

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

High-water mark
Peak Conviction
0.0% in 2024 Q1

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 2025 Q4

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.

How CITADEL ADVISORS LLC held ABUS — position size vs. price
% of Fund (quarterly)    ABUS price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 26 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 104,843 +60,343 +135.6% 0.00% $504K 2026-02-14 (Est.) $3.98
2025 Q4 REDUCED 44,500 -149,191 -77.0% 0.00% $214K 2026-02-14 (Est.) $3.98
2025 Q3 ADDED 193,691 +140,891 +266.8% 0.00% $879K 2025-11-14 $4.52
2025 Q3 ADDED 52,800 +22,200 +72.5% 0.00% $240K 2025-11-14 $4.52
2025 Q3 REDUCED 30,600 -89,672 -74.6% 0.00% $139K 2025-11-14 $4.52
2025 Q2 ADDED 120,272 +83,972 +231.3% 0.00% $372K 2025-08-14 $3.37
2025 Q2 REDUCED 36,300 -34,900 -49.0% 0.00% $112K 2025-08-14 $3.37
2025 Q2 REDUCED 71,200 -80,214 -53.0% 0.00% $220K 2025-08-14 $3.37
2025 Q1 ADDED 151,414 +125,814 +491.5% 0.00% $528K 2025-05-15 $3.12
2025 Q1 REDUCED 25,600 -12,300 -32.5% 0.00% $89K 2025-05-15 $3.12
2025 Q1 REDUCED 37,900 -239,659 -86.3% 0.00% $132K 2025-05-15 $3.12
2024 Q4 ADDED 277,559 +245,459 +764.7% 0.00% $908K 2025-02-14 $3.29
2024 Q4 REDUCED 32,100 -18,300 -36.3% 0.00% $105K 2025-02-14 $3.29
2024 Q4 REDUCED 50,400 -557,344 -91.7% 0.00% $165K 2025-02-14 $3.29
2024 Q3 ADDED 607,744 +572,044 +1602.4% 0.00% $2.3M 2024-11-14 $3.63
2024 Q3 REDUCED 35,700 -18,600 -34.3% 0.00% $137K 2024-11-14 $3.63
2024 Q3 REDUCED 54,300 -90,575 -62.5% 0.00% $209K 2024-11-14 $3.63
2024 Q2 ADDED 144,875 +114,975 +384.5% 0.00% $448K 2024-08-14 $3.68
2024 Q2 ADDED 29,900 +6,200 +26.2% 0.00% $92K 2024-08-14 $3.68
2024 Q2 REDUCED 23,700 -1,972,104 -98.8% 0.00% $73K 2024-08-14 $3.68
2024 Q1 ADDED 1,995,804 +1,889,104 +1770.5% 0.00% $5.1M 2024-05-15 $2.81
2024 Q1 ADDED 106,700 +13,600 +14.6% 0.00% $275K 2024-05-15 $2.81
2024 Q1 REDUCED 93,100 -1,840,858 -95.2% 0.00% $240K 2024-05-15 $2.81
2023 Q4 ADDED 1,933,958 +1,909,158 +7698.2% 0.00% $4.8M 2024-02-14 $2.91
2023 Q4 REDUCED 24,800 -84,100 -77.2% 0.00% $62K 2024-02-14 $2.91
2023 Q4 REDUCED 108,900 -1,909,277 -94.6% 0.00% $272K 2024-02-14 $2.91
57 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About CITADEL ADVISORS LLC and ABUS

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 ABUS?

CITADEL ADVISORS LLC reported ABUS across 26 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

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

The largest reported portfolio weight for ABUS was 0.00% in 2024 Q1.

What is the latest reported ABUS position on this page?

The most recent filing on this page is 2025 Q4, when CITADEL ADVISORS LLC reported 104,843 shares, equal to 0.00% of portfolio, with an estimated market value of $504K.

What does the chart on this ABUS ownership page compare?

The chart compares CITADEL ADVISORS LLC's quarterly ABUS 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.

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