| Jun 9, 2026 (view filing) | Jun 5 | 4 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +3.50K | $2.05 | +$7.17K | +45.0%11.3K after | |
| Jun 5, 2026 (view filing) | Jun 3 | 2 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +2.00K | $2.13 | +$4.26K | +34.6%7.78K after | |
| Jun 1, 2026 (view filing) | May 28 | 4 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +250 | $2.30 | +$575 | +4.5%5.78K after | |
| May 29, 2026 (view filing) | May 27 | 2 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +2.00K | $2.00 | +$4.00K | +56.7%5.53K after | |
| May 27, 2026 (view filing) | May 26 | 1 day | lee ting-chuanDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −110.0K | $1.90 | −$209.0K | −12.0%807.4K after | |
| May 27, 2026 (view filing) | May 26 | 1 day | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −41.0K | $2.36 | −$96.8K | −4.1%948.9K after | |
| May 27, 2026 (view filing) | May 22-26 | 5 days | tsai chung-jungDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −28.8K | $1.86 | −$53.5K | −4.2%658.2K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| May 26, 2026 (view filing) | May 21-22 | 5 days | lee ting-chuanDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −18.3K | $1.57 | −$28.6K | −2.0%917.4K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| May 20, 2026 (view filing) | May 18-19 | 2 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +2.70K | $1.67 | +$4.52K | +325.7%3.53K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| May 7, 2026 (view filing) | May 5 | 2 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +129 | $1.70 | +$219.3 | +18.4%829 after | |
| May 1, 2026 (view filing) | Apr 29-30 | 2 days | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +300 | $1.70 | +$511 | +75.0%700 after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Apr 15, 2026 (view filing) | Apr 12 | 3 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | ASE Test, Inc.10% Owner | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Stock, par value $0.01 | +5.99K | – | – | –105.9K after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
| Jan 29, 2026 (view filing) | Jan 28 | 1 day | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −46.0K | $2.17 | −$99.8K | −4.4%989.9K after | |
| Jan 12, 2026 (view filing) | Jan 8-9 | 4 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −1.28K | $1.82 | −$2.33K | −0.1%1.04M after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Oct 8, 2025 (view filing) | Oct 6 | 2 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −7.00K | $3.59 | −$25.1K | −0.7%1.04M after | |
| Oct 6, 2025 (view filing) | Oct 2 | 4 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −2.00K | $3.59 | −$7.18K | −0.2%1.04M after | |
| Oct 2, 2025 (view filing) | Sep 30-Oct 1 | 2 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −2.71K | $3.48 | −$9.42K | −0.3%1.05M after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Aug 7, 2025 (view filing) | Aug 5-6 | 2 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | +31.2K | $2.77 | +$86.3K | +3.1%1.05M after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Jul 21, 2025 (view filing) | Jul 17-18 | 4 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | +14.0K | $2.80 | +$39.3K | +1.3%1.08M after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Jun 27, 2025 (view filing) | Jun 25 | 2 days | lee ting-chuanDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −2.89K | $0.51 | −$1.48K | −0.2%1.43M after | |
| Jun 27, 2025 (view filing) | Jun 25-27 | 2 days | tsai chung-jungDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −17.0K | $0.50 | −$8.50K | −1.2%1.38M after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Jun 25, 2025 (view filing) | Jun 23 | 2 days | Taiwan Carbon Nano Technology Corp10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | +29.5K | – | – | +0.5%5.47M after | |
| Jun 25, 2025 (view filing) | Jun 23 | 2 days | ASE Test, Inc.10% Owner | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Stock, par value $0.01 per share | +29.5K | – | – | +100.2%58.9K after | |
| Jun 23, 2025 (view filing) | Jun 18-23 | 5 days | tsai chung-jungDirector | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −25.9K | $0.5249 | −$13.6K | −1.8%1.40M after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Mar 12, 2025 (view filing) | Mar 10 | 2 days | ASE Test, Inc.10% Owner | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Common Stock, par value $0.01 | +499.4K | – | – | –499.4K after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
| Apr 26, 2023 (view filing) | Apr 26 | Same day | lee ting-chuanDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +61.2K | $0.79 | +$48.3K | New position61.2K after | |
| Apr 21, 2023 (view filing) | Apr 19 | 2 days | Ainos Inc10% Owner | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase. | −400.0K | $0.75 | −$300.0K | −3.0%12.9M after | |
| Nov 14, 2022 (view filing) | Dec 20, 2021 | 329 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | tsai chung-jungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +8.93K | $0.50 | +$4.47K | New position8.93K after | |
| May 6, 2022 (view filing) | Mar 17 | 50 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Ainos Inc10% Owner | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +15.0M | – | – | –3.00M after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
| Dec 21, 2021 (view filing) | Dec 20 | 1 day | tsai chung-jungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +134.0K | $0.50 | +$67.0K | New position134.0K after | |
| Dec 21, 2021 (view filing) | Dec 21 | Same day | tsai chun-hsienCHIEF EXECUTIVE OFFICER | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +334.0K | $0.50 | +$167.0K | New position334.0K after | |
| Dec 9, 2021 (view filing)3:06 PM ET | Dec 6 | 3 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | chang wen-hanDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +4.00M | $0.25 | +$1.00M | New position4.00M after | |
| Dec 9, 2021 (view filing) | Dec 6 | 3 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | chiang yao-chungDirector | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in. | +150.0K | $2.00 | +$300.0K | New position150.0K after | |
