Arbutus Biopharma Corp. 13F holders
176 funds reported a position in Arbutus Biopharma Corp. in their 13F for the quarter ended 30 June 2026, together 140.6 million shares worth $674.9 million. Against the quarter before, 32 opened a position, 63 added, 40 trimmed and 23 sold out; together they bought a net 967,118 shares. The largest holders: Two Seas Capital LP, Morgan Stanley and Whitefort Capital Management, LP.
Funds holding176+9 on Q1 2026
Shares they held140.6Mworth $674.9 million
Net bought on the quarter967,118 sharesabout $4.6 million at the funds' values
Funds buying to selling95 to 63opened or added, to cut or sold
Opened 32Added 63Held 40Trimmed 40Sold out 23
What each fund did in ABUS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ABUS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 33 reported a position in Arbutus Biopharma Corp.: 11 opened one, 10 added, 4 trimmed and 1 sold out, a net 10.2 million shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 4 reported a position in Arbutus Biopharma Corp. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 4.1 million shares worth $19.8 million, 0.0% of its reported book. New this quarter: Two Sigma Investments. Sold out: Millennium Management. In the quarter, 3 funds added or opened a position and 2 trimmed or sold out; together they sold a net 361,957 shares, about $1.7 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 4,117,691 | $19.8 million | 0.0% | +345,885 | added | 30 June 2026 | 13F |
| Citadel Advisors | 404,696 | $1.9 million | 0.0% | -272,442 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 267,188 | $1.3 million | 0.0% | +122,062 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 84,986 | $407,933 | 0.0% | +84,986 | new | 30 June 2026 | 13F |
| Millennium Management | 0 | $0 | 0.0% | -642,448 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Two Seas Capital LP | 19,095,583 | 13.58% | $91.7 million | 3.50% | +538,040 | 13F |
| Morgan Stanley | 17,698,305 | 12.59% | $85.0 million | 0.00% | -8,193,175 | 13F |
| Whitefort Capital Management, LP | 15,794,261 | 11.23% | $75.8 million | 19.36% | +863,376 | 13F |
| BlackRock, Inc. | 13,766,071 | 9.79% | $66.1 million | 0.00% | +799,125 | 13F |
| State Street Corp. | 7,869,179 | 5.60% | $37.8 million | 0.00% | +1,526,669 | 13F |
| Rubric Capital Management LP | 7,532,937 | 5.36% | $36.2 million | 0.33% | +906,548 | 13F |
| Vanguard Capital Management LLC | 7,010,679 | 4.99% | $33.7 million | 0.00% | +321,768 | 13F |
| Barclays PLC | 4,207,914 | 2.99% | $20.2 million | 0.01% | -108,181 | 13F |
| Geode Capital Management, LLC | 4,117,691 | 2.93% | $19.8 million | 0.00% | +345,885 | 13F |
| Goldman Sachs Group Inc. | 3,506,802 | 2.49% | $16.8 million | 0.00% | +2,406,368 | 13F |
| Bank of America Corp. | 2,646,197 | 1.88% | $12.7 million | 0.00% | +962,569 | 13F |
| BlackBarn Capital Partners LP | 2,500,000 | 1.78% | $12.0 million | 2.98% | no change | 13F |
| Legal & General Group Plc | 2,466,127 | 1.75% | $11.8 million | 0.00% | +64,738 | 13F |
| Woodline Partners LP | 2,281,856 | 1.62% | $11.0 million | 0.03% | +271,684 | 13F |
| Jefferies Financial Group Inc. | 1,711,672 | 1.22% | $8.2 million | 0.08% | -182,395 | 13F |
| Nomura Holdings Inc. | 1,637,081 | 1.16% | $7.9 million | 0.03% | new | 13F |
| Vanguard Portfolio Management LLC | 1,541,458 | 1.10% | $7.4 million | 0.00% | +149,434 | 13F |
| Charles Schwab Investment Management Inc. | 1,431,218 | 1.02% | $6.9 million | 0.00% | +30,061 | 13F |
| Northern Trust Corp. | 1,419,024 | 1.01% | $6.8 million | 0.00% | +141,165 | 13F |
| Osaic Holdings, Inc. | 1,347,866 | 0.96% | $6.5 million | 0.01% | -261 | 13F |
| ADAR1 Capital Management, LLC | 1,268,147 | 0.90% | $6.1 million | 0.29% | -1,865,028 | 13F |
| Deltroit Asset Management (UK) LLP | 1,200,000 | 0.85% | $5.8 million | 0.94% | +400,000 | 13F |
| Vanguard Fiduciary Trust Co. | 1,135,362 | 0.81% | $5.4 million | 0.00% | +72,308 | 13F |
| Citigroup Inc. | 879,237 | 0.63% | $4.2 million | 0.00% | -19,184 | 13F |
| Bank of Montreal | 777,938 | 0.55% | $3.7 million | 0.00% | -4,825 | 13F |
| Arrowstreet Capital, Limited Partnership | 650,700 | 0.46% | $3.1 million | 0.00% | new | 13F |
| Mackenzie Financial Corp. | 613,806 | 0.44% | $2.9 million | 0.00% | new | 13F |
| Los Angeles Capital Management LLC | 602,008 | 0.43% | $2.9 million | 0.01% | new | 13F |
| Jupiter Topco LLC | 597,423 | 0.42% | $2.9 million | 0.00% | first 13F | 13F |
| Western Standard LLC | 542,787 | 0.39% | $2.6 million | 0.88% | +21,200 | 13F |
| Rangeley Capital, LLC | 500,000 | 0.36% | $2.4 million | 2.23% | no change | 13F |
| Nuveen, LLC | 496,609 | 0.35% | $2.4 million | 0.00% | +237,592 | 13F |
| Man Group plc | 473,467 | 0.34% | $2.3 million | 0.00% | new | 13F |
| Wellington Management Group LLP | 461,646 | 0.33% | $2.2 million | 0.00% | +20,722 | 13F |
| Bank of New York Mellon Corp | 454,115 | 0.32% | $2.2 million | 0.00% | +74,742 | 13F |
| CenterBook Partners LP | 445,151 | 0.32% | $2.1 million | 0.10% | new | 13F |
| Freestone Capital Holdings, LLC | 442,500 | 0.31% | $2.1 million | 0.06% | no change | 13F |
| Citadel Advisors LLC | 404,696 | 0.29% | $1.9 million | 0.00% | -272,442 | 13F |
| Kennedy Capital Management LLC | 385,298 | 0.27% | $1.8 million | 0.03% | -7,834 | 13F |
| D. E. Shaw & Co., Inc. | 381,863 | 0.27% | $1.8 million | 0.00% | +238,662 | 13F |
| Swiss National Bank | 286,500 | 0.20% | $1.4 million | 0.00% | +3,100 | 13F |
| Ledgewood Wealth Advisors, LLC | 278,436 | 0.20% | $1.3 million | 0.71% | no change | 13F |
| FMR LLC | 267,188 | 0.19% | $1.3 million | 0.00% | +122,062 | 13F |
| Susquehanna Portfolio Strategies, LLC | 263,685 | 0.19% | $1.3 million | 0.02% | +244,865 | 13F |
| UBS AM, a distinct business unit of UBS Asset Management Americas LLC | 261,052 | 0.19% | $1.3 million | 0.00% | -577,158 | 13F |
| Carrera Capital Advisors | 257,167 | 0.18% | $1.2 million | 0.18% | +5,008 | 13F |
| Quinn Opportunity Partners LLC | 255,214 | 0.18% | $1.2 million | 0.06% | -259,299 | 13F |
| Invesco Ltd. | 250,907 | 0.18% | $1.2 million | 0.00% | +2,982 | 13F |
| UBS Group AG | 249,208 | 0.18% | $1.2 million | 0.00% | -115,263 | 13F |
| State of Wisconsin Investment Board | 242,017 | 0.17% | $1.2 million | 0.00% | +153,658 | 13F |
The 50 largest of the 176 funds that reported a position in ABUS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 27 October 2026 | 13G/A | BlackRock, Inc. and 1 other | 14.3 million | 7.2% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 October 2026 | 13G/A | Morgan Stanley and 3 others | 18.7 million | 12.2% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 5 October 2026 | 13D/A | Roivant Sciences Ltd. | 29.9 million | 19.5% | 1 October 2026 | Item 4 is hereby amended by adding the following to the end thereof: On August 24, 2026, the Issuer commenced a modified Dutch auction tender offer to purchase for cancellation up to US$230 million in value of its Common Shares at prices be | EDGAR |
| 4 September 2026 | 13G | Whitefort Capital Master Fund, LP and 11 others | 15.8 million | 8.0% | 4 September 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 12 August 2026 | 13G/A | Morgan Stanley and 3 others | 17.4 million | 8.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 15 May 2026 | 13G/A | Two Seas Capital LP and 5 others | 18.6 million | 9.4% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 April 2026 | 13D/A | Whitefort Capital Master Fund, LP and 5 others | 15.8 million | 8.0% | 24 April 2026 | EDGAR | |
| 13 April 2026 | 13D/A | Whitefort Capital Master Fund, LP and 5 others | 15.8 million | 8.1% | 10 April 2026 | EDGAR | |
| 17 February 2026 | 13G/A | Two Seas Capital LP and 5 others | 12.6 million | 6.5% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 11 February 2026 | 13G/A | Morgan Stanley and 3 others | 25.9 million | 13.5% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 24 September 2026 | 9,000 | $4.85 | SEC |
| 23 September 2026 | 9,000 | $5.01 | SEC |
| 21 September 2026 | 1,540 | $5.01 | SEC |
| 18 September 2026 | 5,119 | $5.07 | SEC |
| 15 September 2026 | 4,861 | $5.13 | SEC |
| 14 September 2026 | 903 | $5.12 | SEC |
| 11 September 2026 | 4 | $5.12 | SEC |
| 10 September 2026 | 22,417 | $5.17 | SEC |
| 9 September 2026 | 20,763 | $5.18 | SEC |
| 4 September 2026 | 87,805 | $5.12 | SEC |
| 31 August 2026 | 44 | $5.07 | SEC |
| 28 August 2026 | 4,141 | $5.17 | SEC |
| 25 August 2026 | 8,402 | $5.20 | SEC |
| 24 August 2026 | 14,176 | $5.21 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.