ABUS · Insider trading · 13F holders · Congress trades
Arbutus Biopharma Corp (ABUS)
Who is buying and selling ABUS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 7
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ABUS at a glance
- No open-market insider purchases or sales of ABUS were filed in the last 90 days.
- 7 13F filers hold ABUS among their 50 largest positions, worth $138.8M combined. The biggest bets by portfolio weight are Whitefort Capital Management, LP (19.4%), BlackBarn Capital Partners LP (3.0%) and Rangeley Capital, LLC (2.2%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in ABUS.
ABUS insider trading
No open-market insider purchases or sales of ABUS were filed in the last 90 days.
Who owns ABUS? Hedge funds and superinvestors
7 13F filers hold ABUS among their 50 largest positions, worth $138.8M combined. The biggest bets by portfolio weight are Whitefort Capital Management, LP (19.4%), BlackBarn Capital Partners LP (3.0%) and Rangeley Capital, LLC (2.2%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Whitefort Capital Management, LPHedge fund | 19.4% | $75.8M | 15,794,261 | +5.8% shares | Q2 2026 |
| Two Seas Capital LPHedge fund | 1.6% | $38.9M | 8,143,994 | -57.4% shares | Q3 2026 |
| BlackBarn Capital Partners LPHedge fund | 3.0% | $12.0M | 2,500,000 | +0.0% shares | Q2 2026 |
| Deltroit Asset Management (UK) LLPHedge fund | 0.9% | $5.8M | 1,200,000 | +50.0% shares | Q2 2026 |
| Western Standard LLCHedge fund | 0.9% | $2.6M | 542,787 | +4.1% shares | Q2 2026 |
| Rangeley Capital, LLCHedge fund | 2.2% | $2.4M | 500,000 | +0.0% shares | Q2 2026 |
| Ledgewood Wealth Advisors, LLCWealth manager | 0.7% | $1.3M | 278,436 | +0.0% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 2, Q2 2026: 5). Screen ABUS in the grand portfolio →
ABUS stock trades by members of Congress
No member of Congress has disclosed a trade in ABUS.
ABUS questions and answers
Are insiders buying ABUS stock?
No open-market insider purchases or sales of ABUS were filed in the last 90 days.
Which hedge funds own ABUS?
7 13F filers hold ABUS among their 50 largest positions, worth $138.8M combined. The biggest bets by portfolio weight are Whitefort Capital Management, LP (19.4%), BlackBarn Capital Partners LP (3.0%) and Rangeley Capital, LLC (2.2%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
Has Congress traded ABUS?
No member of Congress has disclosed a trade in ABUS.
Who is the largest holder of ABUS?
Among 13F filers, Whitefort Capital Management, LP reports the largest ABUS position, $75.8M (15,794,261 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Whitefort Capital Management, LP's: 19.4% of its portfolio.
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