DOSSIER · 13F Holders · Q2 2026
MAGC

ROUNDHILL ETF TRUST

6 institutions still hold ROUNDHILL ETF TRUST as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 77926X874·6 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$349K
visible holders
Holders
6
filers reporting
Concentration
67.04%
CITADEL ADVISORS LLC #1
top holder share
AI Holders Summary · Q2 2026

6 institutions reported MAGC in Q2 2026. CITADEL ADVISORS LLC leads at 67.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
CITADEL ADVISORS LLC
CIK 0001423053
$234K14K0.00%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$61K4K0.00%Q2 2026
03
Byrne Asset Management LLC
CIK 0001911322
$41K2K0.02%Q2 2026
04
UBS Group AG
CIK 0001610520
$8K5000.00%Q2 2026
05
Arax Advisory Partners
CIK 0001586767
$4K2500.00%Q2 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025