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 |
|---|---|---|---|---|---|---|
| Aug 13, 2026 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Option exercise(M) | 73K | $41.10 | $3.0M |
| Aug 13, 2026 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Option exercise(M) | 73K | — | $0 |
| Aug 12, 2026 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Option exercise(M) | 292K | $41.10 | $12.0M |
| Aug 12, 2026 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Option exercise(M) | 292K | — | $0 |
| Jul 29, 2026 | Lin Chung | GM, ASE Shanghai & Electronics | Option exercise(M) | 25K | $41.10 | $1.0M |
| Jul 29, 2026 | Lin Chung | GM, ASE Shanghai & Electronics | Option exercise(M) | 10K | $98.60 | $986K |
| Jul 29, 2026 | Lin Chung | GM, ASE Shanghai & Electronics | Option exercise(M) | 25K | — | $0 |
| Jul 29, 2026 | Lin Chung | GM, ASE Shanghai & Electronics | Option exercise(M) | 10K | — | $0 |
| Jul 22, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $665.00as filed | — |
| Jul 15, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $688.00as filed | — |
| Jul 13, 2026 | Chang Hung Pen | Director | Option exercise(M) | 3.0M | $41.10 | $123.3M |
| Jul 13, 2026 | Chang Hung Pen | Director | Option exercise(M) | 1.5M | $98.60 | $147.9M |
| Jul 13, 2026 | Chang Hung Pen | Director | Option exercise(M) | 3.0M | — | $0 |
| Jul 13, 2026 | Chang Hung Pen | Director | Option exercise(M) | 1.5M | — | $0 |
| Jul 6, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 2K | $687.00as filed | — |
| Jul 1, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $709.00as filed | — |
| Jun 30, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $664.00as filed | — |
| Jun 30, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 2K | $687.00as filed | — |
| Jun 23, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $697.00as filed | — |
| Jun 22, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 5K | $667.00as filed | — |
| Jun 18, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 3K | $611.00as filed | — |
| Jun 3, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 5K | $617.00as filed | — |
| Jun 1, 2026 | Uang Du-Tsuen | Chief Administration Officer | Sell(S) | 5K | $607.00as filed | — |
| May 27, 2026 | Chen Jeffrey | Director | Sell(S) | 2K | $653.00as filed | — |
| May 26, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $630.00as filed | — |
| May 25, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $590.00as filed | — |
| May 22, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $538.00as filed | — |
| May 21, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $505.00as filed | — |
| May 20, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $477.00as filed | — |
| May 19, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $483.00as filed | — |
| May 18, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $506.00as filed | — |
| May 15, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $563.00as filed | — |
| May 14, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $560.00as filed | — |
| Apr 24, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $473.00as filed | — |
| Apr 23, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $487.67as filed | — |
| Apr 22, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $466.50as filed | — |
| Apr 21, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $463.50as filed | — |
| Apr 20, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $461.50as filed | — |
| Apr 20, 2026 | Chen Tien-Szu | GM, ASE Inc. Chung-Li Branch | Sell(S) | 328K | $465.11as filed | — |
| Apr 20, 2026 | Chen Tien-Szu | GM, ASE Inc. Chung-Li Branch | Sell(S) | 72K | $466.00as filed | — |
| Apr 20, 2026 | Chen Tien-Szu | GM, ASE Inc. Chung-Li Branch | Sell(S) | 50K | $467.00as filed | — |
| Apr 20, 2026 | Chen Tien-Szu | GM, ASE Inc. Chung-Li Branch | Sell(S) | 80K | $471.00as filed | — |
| Apr 17, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $454.00as filed | — |
| Apr 16, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $446.00as filed | — |
| Apr 15, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $432.00as filed | — |
| Apr 14, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $427.00as filed | — |
| Apr 13, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $408.33as filed | — |
| Apr 10, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $387.00as filed | — |
| Apr 9, 2026 | Chang Chien Shen | Director | Option exercise(M) | 3.0M | $41.10 | $123.3M |
| Apr 9, 2026 | Chang Chien Shen | Director | Option exercise(M) | 1.5M | $99.70 | $149.6M |
| Apr 9, 2026 | Chang Chien Shen | Director | Option exercise(M) | 3.0M | — | $0 |
| Apr 9, 2026 | Chang Chien Shen | Director | Option exercise(M) | 1.5M | — | $0 |
| Apr 9, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $388.00as filed | — |
| Apr 8, 2026 | Chen Jeffrey | Director | Sell(S) | 9K | $380.50as filed | — |
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.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-03. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
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