DOSSIER · 13F Holders · Q3 2026

ARBUTUS BIOPHARMA CORP

5 institutions still hold ARBUTUS BIOPHARMA CORP as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 03879J950·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$2M
visible holders
Holders
5
filers reporting
Concentration
62.62%
BOUSSARD & GAVAUDAN GESTION SAS #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported ARBUTUS BIOPHARMA CORP in Q3 2026. BOUSSARD & GAVAUDAN GESTION SAS leads at 62.6% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BOUSSARD & GAVAUDAN GESTION SAS
CIK 0001569001
$1M6K0.09%Q3 2026
02
Maven Securities LTD
CIK 0001633046
$478K100K0.01%Q3 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$198K42K0.00%Q3 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$13K3K0.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025