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STG

Sunlands Technology Group

Company with tickers: STG

CIK
1723935
CUSIP
86740P207
Shares Outstanding
5,076,094
13F Activity (30d)
2 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: 3
Total Value: $1,238
Total Shares: 353

Institutional Ownership Trend

19 quarters

Holder Concentration

Across 3 13F filers · Δ vs Dec 31, 2025
Top Holder
57.3%
Jun 2023 → Mar 2026 · range 57.3% – 100.0%
−34.4 pts
Top 5
100.0%
Jun 2023 → Mar 2026 · range 99.5% – 100.0%
0.0 pts
Top 10
100.0%
Jun 2023 → Mar 2026 · range 100.0% – 100.0%
0.0 pts
HHI
4,385
Jun 2023 → Mar 2026 · range 4,385 – 10,000
Highly concentrated−4,074

Quarterly Activity

vs Dec 31, 2025
New
0
Increased
1
Decreased
1
Sold Out
0
Unchanged
1
Holder count: 0
Institutional value: -61.0%
Shares held: -34.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Showing 3 of 3
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Holder Value (USD) % of 13F Shares Open