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US INSIDER PROFILE · NON-SCORING RESEARCH
Liu Chang
Chief Executive Officer | Officer
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001843196
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 13
- Purchases · 24M
- 13
- Average purchase
- $13.7K
- Median purchase
- $11.0K
- Gross purchase value
- $177.9K
Companies: 17 Education & Technology Group Inc.
13 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-09-04 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $23.8K | Open filing |
| 2026-09-03 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $19.8K | Open filing |
| 2026-09-01 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $8.4K | Open filing |
| 2026-08-28 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $19.9K | Open filing |
| 2026-08-24 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $2.1K | Open filing |
| 2026-08-14 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $2.1K | Open filing |
| 2026-08-11 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $8.0K | Open filing |
| 2026-08-10 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $4.0K | Open filing |
| 2026-08-03 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $11.0K | Open filing |
| 2026-07-31 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $930 | Open filing |
| 2026-07-22 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $20.2K | Open filing |
| 2026-07-20 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $15.9K | Open filing |
| 2026-07-06 | 17 Education & Technology Group Inc. | YQ | Chief Executive Officer | Officer | $41.8K | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
No completed point-in-time price outcome is available yet.
Research patterns
- First purchase in 12M
- 1/13
- Large purchase ≥ $100k
- 0/13
- Cluster buying · 15D
- 0/13
- Buying the dip
- 0/—
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.