DOSSIER · 13F Holders · Q1 2026
BEG

THEMES ETF TR

5 institutions still hold THEMES ETF TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 88340F209·5 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1M
visible holders
Holders
5
filers reporting
Concentration
52.67%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q1 2026

5 institutions reported BEG in Q1 2026. Optiver Holding B.V. leads at 52.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$586K25K0.00%Q1 2026
02
Genesis Financial Group, LLC
CIK 0002097587
$473K20K0.30%Q1 2026
03
UBS Group AG
CIK 0001610520
$31K1K0.00%Q1 2026
04
SBI Securities Co., Ltd.
CIK 0001851815
$22K2660.00%Q2 2026
05
HOLLENCREST CAPITAL MANAGEMENT
CIK 0001161722
$11850.00%Q1 2026