Company · Ownership research

So-Young International Inc. SY

CIK 0001758530 · CUSIP 83356Q108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 83356Q108 (SY), not CUSIP 83356Q958 (SY), CUSIP 83356Q908 (SY), and does not merge CUSIPs.

This page lists the top 20 of 27 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	TB Alternative Assets Ltd. CIK 1483503 · View history	$9.51M 3,067,873 shares	1.76%	0(0.00%)Unchanged	SEC filing ↗ Jul 16, 2025	▾
02	Oasis Management Co Ltd. CIK 1317904 · View history	$7.77M 2,505,807 shares	1.82%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
03	BARCLAYS PLC CIK 312069 · Amended · View history	$1.93M 623,793 shares	0.00%	+423.86K(+212.00%)Added	SEC filing ↗ Feb 27, 2026	▾
04	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$1.75M 563,228 shares	0.00%	-18.00K(-3.10%)Reduced	SEC filing ↗ Aug 13, 2025	▾
05	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$1.26M 407,548 shares	0.00%	+14.94K(+3.80%)Added	SEC filing ↗ Aug 7, 2025	▾
06	UBS Group AG CIK 1610520 · View history	$1.19M 384,171 shares	0.00%	+376.57K(+4,956.20%)Added	SEC filing ↗ Aug 14, 2025	▾
07	HRT FINANCIAL LP CIK 1475597 · View history	$546.00K 176,336 shares	0.00%	+79.61K(+82.30%)Added	SEC filing ↗ Aug 14, 2025	▾
08	Virtu Financial LLC CIK 1533964 · View history	$329.00K 106,092 shares	0.02%	+106.09KNew	SEC filing ↗ Aug 12, 2025	▾
09	SUPERSTRING CAPITAL MANAGEMENT LP CIK 1931118 · View history	$226.10K 72,936 shares	0.28%	+72.94KNew	SEC filing ↗ Aug 14, 2025	▾
10	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$190.27K 61,376 shares	0.00%	+26.20K(+74.50%)Added	SEC filing ↗ Aug 14, 2025	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$173.16K 55,857 shares	0.00%	+228(+0.40%)Added	SEC filing ↗ Aug 8, 2025	▾
12	CITIGROUP INC CIK 831001 · View history	$149.29K 48,158 shares	0.00%	+3.63K(+8.20%)Added	SEC filing ↗ Aug 11, 2025	▾
13	XTX Topco Ltd CIK 1828301 · View history	$112.55K 36,306 shares	0.00%	+36.31KNew	SEC filing ↗ Aug 12, 2025	▾
14	SIMPLEX TRADING, LLC CIK 1488542 · View history	$103.00K 33,230 shares	0.00%	+33.06K(+19,332.70%)Added	SEC filing ↗ Aug 5, 2025	▾
15	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$48.67K 15,700 shares	0.00%	+1.10K(+7.50%)Added	SEC filing ↗ Aug 14, 2025	▾
16	CITADEL ADVISORS LLC CIK 1423053 · View history	$46.52K 15,006 shares	0.00%	-57.25K(-79.20%)Reduced	SEC filing ↗ Aug 14, 2025	▾
17	MORGAN STANLEY CIK 895421 · View history	$43.17K 13,925 shares	0.00%	-68.02K(-83.00%)Reduced	SEC filing ↗ Aug 14, 2025	▾
18	EWA, LLC CIK 1835252 · View history	$42.60K 13,741 shares	0.01%	-5.17K(-27.30%)Reduced	SEC filing ↗ Jul 18, 2025	▾
19	JANE STREET GROUP, LLC CIK 1595888 · View history	$38.55K 12,435 shares	0.00%	-23.98K(-65.90%)Reduced	SEC filing ↗ Aug 14, 2025	▾
20	Scientech Research LLC CIK 2011556 · View history	$31.54K 10,175 shares	0.01%	+10.18KNew	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 27 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

8,237,933

Not deduplicated across managers

Disclosed value

$25.54M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

So-Young International Inc. · Q2 2025

Explore all 27 reporting institutions.

This page includes 20 of 27 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.