Sunlands Technology Group
Sunlands Technology Group (STG) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · STG · as of Sep 30, 2025
Ownership Breakdown
8
Institutional Holders
▲ 3 vs Q2
$108,808
Total Inst. Value
▲ $87,009 vs Q2
13.44M
Shares Outstanding
freeFloat 94.38%
13,601
13F Shares Held
▲ 9,790 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
STG largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 8 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
RENAISSANCE TECHNOLOGIES LLC services-educational services | 10.1K | 7.48% | 7.48% | $80.78M | Nov 13, 2025 | NEW |
CITIGROUP INC services-educational services | 2.0K | 1.48% | 1.48% | $16.00M | Nov 10, 2025 | NEW |
EVERSOURCE WEALTH ADVISORS, LLC services-educational services | 908 | 0.67% | 0.67% | $7.26M | Nov 10, 2025 | ▼ 28 |
MORGAN STANLEY services-educational services | 323 | 0.24% | 0.24% | $2.58M | May 27, 2026 | — held |
UBS GROUP AG services-educational services | 204 | 0.15% | 0.15% | $1.63M | Nov 13, 2025 | ▼ 2.3K |
RHUMBLINE ADVISERS services-educational services | 61 | 0.05% | 0.05% | $488,000 | Nov 6, 2025 | — held |
SBI SECURITIES CO., LTD. services-educational services | 4 | 0.00% | 0.00% | $32,000 | Nov 5, 2025 | — held |
ADVISOR GROUP HOLDINGS, INC. services-educational services | 3 | 0.00% | 0.00% | $24,000 | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
0
Increased
+0 shares3
New Positions
first time holders2
Decreased
−2.3K shares0
Sold Out
fully exitedNet shares change (top 50)
2.3K
+0 / −2.3K
Net new holders
+1
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
STG insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
PELINO DENNIS L director | Feb 28, 2007 | Award | 23,814 | $0.24 | $5.7K | 786.0K | Form 4 ↗ |
PELINO DENNIS L director | Feb 14, 2007 | Award | 44,982 | $0.21 | $9.4K | 762.2K | Form 4 ↗ |
PELINO DENNIS L director | Jan 29, 2007 | Award | 40,681 | $0.23 | $9.4K | 717.2K | Form 4 ↗ |
PELINO DENNIS L director | Jan 17, 2007 | Award | 52,479 | $0.18 | $9.4K | 676.5K | Form 4 ↗ |
PELINO DENNIS L CHAIRMAN, BOARD OF DIRECTORS | Dec 29, 2006 | Award | 48,265 | $0.20 | $9.8K | 624.0K | Form 4 ↗ |
PELINO DENNIS L CHAIRMAN, BOARD OF DIRECTORS | Dec 15, 2006 | Award | 50,235 | $0.20 | $9.8K | 575.8K | Form 4 ↗ |
PELINO DENNIS L Chairman, Board of Directors | Dec 14, 2006 | Award | 44,312 | $0.22 | $9.7K | 525.5K | Form 4 ↗ |
PELINO DENNIS L Chairman | Oct 7, 2005 | Award | 300,000 | $0.91 | $273.0K | 300.0K | Form 4 ↗ |
PELINO DENNIS L Chairman | Sep 21, 2005 | Purchase | 16,000 | $0.96 | $15.4K | 481.2K | Form 4 ↗ |
PELINO DENNIS L Chairman | Sep 20, 2005 | Purchase | 34,000 | $0.97 | $33.1K | 465.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Sunlands Technology Group (STG) is primarily owned by institutional investors, who hold approximately 0.1% of total shares outstanding. Company insiders own approximately 5.62%, while retail and public investors account for the remaining 94.28%.
The largest institutional shareholder of Sunlands Technology Group is RENAISSANCE TECHNOLOGIES LLC, holding approximately 10,098 shares — equal to 7.48% of outstanding shares — as of September 30, 2025.
A total of 8 institutional investors currently hold STG stock, with a combined institutional value of approximately $108,808 as of the most recent 13F filing period.
Frequently asked questions
STG ownershipSunlands Technology Group (STG) is primarily owned by institutional investors, who hold approximately 0.1% of shares. The largest shareholder is RENAISSANCE TECHNOLOGIES LLC with a 7.48% stake. Company insiders hold 5.62%. Data sourced from SEC Form 13F as of September 30, 2025.