13F

Stock

Sound Group Inc.

SOGP · held by 12 managers

Reported value

$1.95M

Holders

12

+0 new · −2 exited

Holders’ est. mark

$598.3K

Price effect on 12 books still in the name

Largest holder

$1.69M

Ma Investment Partnership, LP

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Ma Investment Partnership, LP100K$1.69M$526KAdded$526K
GROUP ONE TRADING LLC9.95K$167.9K$52.3KCut−$55.4K
SIMPLEX TRADING, LLC1.94K$32.8K$4.28KAdded$23.3K
RHUMBLINE ADVISERS1.89K$31.8K$9.92KAdded$5.61K
JONES FINANCIAL COMPANIES LLLP850$14.2K$4.31KAdded$4.31K
UBS Group AG595$10K$115Added$9.79K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO100$1.69K$526Added$526
MORGAN STANLEY70$1.18K$369Cut−$319.1K
Physician Wealth Advisors, Inc.48$811$253Added$253
BNP PARIBAS FINANCIAL MARKETS20$338$106Cut−$5.7K
SBI Securities Co., Ltd.10$169$53Added$41
Federation des caisses Desjardins du Quebec3$51$16Added$16

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.