DOSSIER · 13F Holders · Q2 2026
SOGP

SOUND GROUP INC

14 institutions still hold SOUND GROUP INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 53933L203·14 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$3M
visible holders
Holders
14
filers reporting
Concentration
43.96%
Ma Investment Partnership, LP #1
top holder share
AI Holders Summary · Q2 2026

14 institutions reported SOGP in Q2 2026. Ma Investment Partnership, LP leads at 44.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Ma Investment Partnership, LP
CIK 0001536336
$1M100K0.20%Q2 2026
02
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$1M98K0.00%Q2 2026
03
CITADEL ADVISORS LLC
CIK 0001423053
$174K16K0.00%Q2 2026
04
Alpine Global Management, LLC
CIK 0001581655
$113K10K0.02%Q2 2026
05
RHUMBLINE ADVISERS
CIK 0001115418
$21K2K0.00%Q2 2026
06
GROUP ONE TRADING LLC
CIK 0000932540
$10K9070.00%Q2 2026
07
UBS Group AG
CIK 0001610520
$8K7290.00%Q2 2026
08
JONES FINANCIAL COMPANIES LLLP
CIK 0000815917
$4K3180.00%Q2 2026
09
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
CIK 0001141802
$1K1080.00%Q2 2026
10
MORGAN STANLEY
CIK 0000895421
$786700.00%Q2 2026
11
Physician Wealth Advisors, Inc.
CIK 0001795173
$558480.00%Q4 2025
12
SBI Securities Co., Ltd.
CIK 0001851815
$112100.00%Q2 2026
13
Federation des caisses Desjardins du Quebec
CIK 0002022297
$3430.00%Q2 2026
14
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025
Insiders at SOUND GROUP INC
Lai Jinnan (Marco)Zhang Ming