Greenland Acquisition Corp. also files under GTEC; those filings are included.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 10, 2025 | Wang Peter | Director, 10% Owner | Sell(S) | 200K | — | $0 |
| Apr 22, 2025 | Wang Peter | Director, 10% Owner | Sell(S) | 6.2M | $1.00 | $6.2M |
| Apr 22, 2025 | Wang Peter | Director, 10% Owner | Buy(P) | 6.2M | $1.00 | $6.2M |
| May 22, 2023 | Wang Raymond Z | Chief Executive Officer | Buy(P) | 67K | $1.50 | $100K |
| Jun 22, 2021 | Jin Jing | Chief Financial Officer | Sell(S) | 135K | $5.00 | $675K |
| Jun 22, 2021 | Wang Peter | Director, 10% Owner | Sell(S) | 500K | $5.00 | $2.5M |
| Apr 19, 2021 | Zhao Ming | Director | Grant(A) | 3K | — | — |
| Apr 19, 2021 | Shen Bo | Director | Grant(A) | 3K | — | — |
| Apr 19, 2021 | Wang Peter | Director | Grant(A) | 3K | — | — |
| Apr 19, 2021 | Wang Everett Xiaolin | Director | Grant(A) | 3K | — | — |
| Apr 19, 2021 | Nelson Charles Athle | Director | Grant(A) | 3K | — | — |
| Apr 13, 2021 | Wang Peter | Director, 10% Owner | Sell(S) | 25K | $9.65 | $241K |
| Apr 13, 2021 | Wang Peter | Director | Sell(S) | 50K | $12.21 | $611K |
| Feb 8, 2021 | Wang Raymond Z | Chief Executive Officer | Grant(A) | 51K | — | — |
| Dec 30, 2020 | Wang Raymond Z | Chief Executive Officer | Grant(A) | 69K | — | — |
| Nov 10, 2020 | Jin Jing | Chief Financial Officer | Grant(A) | 135K | — | — |
| Oct 2, 2020 | Wang Peter | Director | Other(J) | 193K | — | — |
| May 18, 2020 | Greenland Asset Management Corp | 10% Owner | Sell(S) | 440K | — | $0 |
| May 18, 2020 | Greenland Asset Management Corp | 10% Owner | Sell(S) | 5K | $0.02 | $100 |
| May 18, 2020 | Greenland Asset Management Corp | 10% Owner | Sell(S) | 450K | — | $0 |
| Nov 6, 2019 | Greenland Asset Management Corp | 10% Owner | Sell(S) | 49K | — | $0 |
| Oct 24, 2019 | Greenland Asset Management Corp | 10% Owner | Conversion(C) | 26K | — | $0 |
| Oct 24, 2019 | Greenland Asset Management Corp | 10% Owner | Conversion(C) | 260K | — | $0 |
| Jul 27, 2018 | Yanming Liu | CEO, Director, 10% Owner | Buy(P) | 260K | $10.00 | $2.6M |
| Jul 27, 2018 | Yanming Liu | CEO, Director, 10% Owner | Other(J) | 50K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Greenland Acquisition Corp., SEC CIK 0001735041. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under GLACU and shows every filing by that issuer (also filed as GTEC).
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-05. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for GLACU