$STG

$2.40 +$0.08 (3.45%) Close

$STG Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 6.7M shares outstanding

Who owns STG?

By type of holder

Institutions 25.7% Insiders 50.7% Everyone else 23.7%

Concentration Top 10 holders own 76.4%

Peng Ou 42.1% · Primavera Capital Management Ltd 24.5%

Institutional ownership

25.7%

+25.5 pts vs last qtr

Institutional holders

+1 vs last qtr

Net shares bought

+1.7M

by institutions in Q2 2026

New / sold out

2 / 1

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Primavera Capital Management Ltd NEW +1.7M
HRT Financial LP NEW +44.9K

Biggest sellers in Q2 2026

Morgan Stanley −324
EverSource Wealth Advisors, LLC SOLD OUT −202

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Sunlands Technology Group in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

−0.3%

−0.05% a year

Each share's claim on the business

+0.3%

grew without buying or selling a share

Spent on buybacks vs paid in stock

— vs $37.7M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

5889.1%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting STG on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
PC Primavera Capital Management Ltd	1.7M	24.54%	NEW	Q2 '26	1.2%
Shares held by quarter Peak holding1.7M (Q2'26) Change over 8 quarters+1.7M Share of the company24.540% Primavera Capital Management Ltd's full portfolio →
HF HRT Financial LP	44.9K	0.67%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding44.9K (Q2'26) Change over 8 quarters+44.9K Share of the company0.670% HRT Financial LP's full portfolio →

Primavera Capital Management Ltd

1.7M

% of company

24.54%

Change vs last qtr

NEW

Held since

Q2 '26

HRT Financial LP

44.9K

% of company

0.67%

Change vs last qtr

NEW

Held since

Q2 '26

6 more super investors behind a free account

See every manager holding Sunlands Technology Group, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting STG on Form N-PORT; together they hold 0.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
AI ActivePassive International Equity ETF Trust for Professional Managers	$12.7K	1.8K	0.03%	0.00%	May 31, 2024

ActivePassive International Equity ETF

Trust for Professional Managers

Position value

$12.7K

% of company

0.03%

% of the fund

0.00%

As of

May 31, 2024

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
PO Peng Ou Insider	2.8M	42.06%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company42.060% Peng Ou's insider activity →
TL Tongbo Liu Insider	513.1K	7.62%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company7.620% Tongbo Liu's insider activity →

Peng Ou

Insider

2.8M

% of company

42.06%

Change vs last qtr

—

Held since

—

Tongbo Liu

Insider

513.1K

% of company

7.62%

Change vs last qtr

—

Held since

—

2 more holders behind a free account

See every insider and 5%+ holder of Sunlands Technology Group.

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