SOGP
Sound Group Inc.Company with tickers: SOGP
CIK
1783407
CUSIP
53933L203
Shares Outstanding
3,058,071
Website
https://soundgroupinc.com
13F Activity (30d)
4 filings
2 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 14
Total Value: $5,183,335
Total Shares: 307,070
Institutional Ownership Trend
11 quarters
Holder Concentration
Across 14 13F filers · Δ vs Dec 31, 2025Top Holder
54.5%
+21.9 pts
Top 5
98.8%
+0.1 pts
Top 10
100.0%
+0.0 pts
HHI
4,109
Highly concentrated+1,528
Quarterly Activity
vs Dec 31, 2025
New
0
Increased
3
Decreased
6
Sold Out
1
Unchanged
5
Holder count:
-1
Institutional value:
+19.5%
Shares held:
-17.7%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +45,600 | 167,500 | |
| Mid SIMPLEX TRADING, LLC | +1,129 | 1,943 | |
| Mega UBS Group AG | +573 | 595 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | −75,717 | 24,100 | |
| Mega MORGAN STANLEY | −27,492 | 70 | |
| Mid GROUP ONE TRADING LLC | −9,267 | 9,945 | |
| Mega BNP PARIBAS ARBITRAGE, SA | −500 | 20 | |
| Mega RHUMBLINE ADVISERS | −371 | 1,886 |
Top New Positions
vs Dec 31, 2025No new positions this quarter.
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Small Caitong International Asset Management Co., Ltd | 138 | $1,603 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,363,200 | 45.59% | 140,000 | Put | Other | 2026-05-15 | ||||
| Small Ma Investment Partnership, LP | $1,688,000 | 32.57% | 100,000 | Shares | Sole | 2026-05-18 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $464,200 | 8.96% | 27,500 | Call | Other | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $229,568 | 4.43% | 13,600 | Call | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $177,240 | 3.42% | 10,500 | Put | Defined | 2026-05-15 | ||||
| Mid GROUP ONE TRADING LLC | $167,871 | 3.24% | 9,945 | Shares | Sole | 2026-05-13 | ||||
| Mid SIMPLEX TRADING, LLC | $32,797 | 0.63% | 1,943 | Shares | Sole | 2026-05-14 | ||||
| Mega RHUMBLINE ADVISERS | $31,835 | 0.61% | 1,886 | Shares | Sole | 2026-05-12 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $14,348 | 0.28% | 850 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $10,042 | 0.19% | 595 | Shares | Defined | 2026-05-05 | ||||
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $1,688 | 0.03% | 100 | Shares | Defined | 2026-05-07 | ||||
| Mega MORGAN STANLEY | $1,181 | 0.02% | 70 | Shares | Defined | 2026-05-15 | ||||
| Small Physician Wealth Advisors, Inc. | $810 | 0.02% | 48 | Shares | Sole | 2026-04-24 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $337 | 0.01% | 20 | Shares | Defined | 2026-05-12 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $168 | 0.00% | 10 | Shares | Defined | 2026-04-28 | ||||
| Large Federation des caisses Desjardins du Quebec | $50 | 0.00% | 3 | Shares | Defined | 2026-05-14 | ||||
| No holders match your search. | ||||||||||