Ainos, Inc. (AIMD) Insider Trading
Directors, officers and holders of more than 10% of AIMD report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 152 transactions on file: 10 with code P, 9 with code S and 31 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 5, 2026 | chiang yao-chung | Director | P Purchase | 3,500 | $2.05 | $7,175 |
| Jun 3, 2026 | chiang yao-chung | Director | P Purchase | 2,000 | $2.13 | $4,260 |
| May 28, 2026 | chiang yao-chung | Director | P Purchase | 250 | $2.30 | $575 |
| May 27, 2026 | chiang yao-chung | Director | P Purchase | 2,000 | $2.00 | $4,000 |
| May 26, 2026 | lee ting-chuan | Director | S Sale | 109,988 | $1.90 | $208,977 |
| May 26, 2026 | Taiwan Carbon Nano Technology Corp | 10% Owner | S Sale | 41,000 | $2.36 | $96,760 |
| May 26, 2026 | TSAI CHUN-JUNG | Director | S Sale | 27,718 | $1.87 | $51,833 |
| May 22, 2026 | lee ting-chuan | Director | S Sale | 9,302 | $1.57 | $14,604 |
| May 22, 2026 | TSAI CHUN-JUNG | Director | S Sale | 1,082 | $1.55 | $1,677 |
| May 21, 2026 | lee ting-chuan | Director | S Sale | 9,000 | $1.56 | $14,040 |
| May 19, 2026 | chiang yao-chung | Director | P Purchase | 2,200 | $1.68 | $3,696 |
| May 18, 2026 | chiang yao-chung | Director | P Purchase | 500 | $1.65 | $825 |
| May 5, 2026 | chiang yao-chung | Director | P Purchase | 129 | $1.70 | $219 |
| Apr 30, 2026 | chiang yao-chung | Director | P Purchase | 200 | $1.68 | $336 |
| Apr 29, 2026 | chiang yao-chung | Director | P Purchase | 100 | $1.75 | $175 |
| Apr 15, 2026 | TSAI CHUN-JUNG | Director | C Conversion | 330,000 | Not measured | Not measured |
| Apr 15, 2026 | TSAI CHUN-JUNG | Director | A Award | 330,000 | $1.61 | $531,300 |
| Apr 15, 2026 | lee ting-chuan | Director | C Conversion | 570,000 | Not measured | Not measured |
| Apr 15, 2026 | lee ting-chuan | Director | A Award | 570,000 | $1.61 | $917,700 |
| Apr 15, 2026 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | C Conversion | 300,000 | Not measured | Not measured |
| Apr 15, 2026 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | A Award | 300,000 | Not measured | Not measured |
| Apr 15, 2026 | lee ting-chuan | Director | A Award | 570,000 | Not measured | Not measured |
| Apr 15, 2026 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | A Award | 300,000 | $1.61 | $483,000 |
| Apr 15, 2026 | TSAI CHUN-JUNG | Director | A Award | 330,000 | Not measured | Not measured |
| Apr 12, 2026 | ASE Test, Inc. | 10% Owner | P Purchase | 5,994 | Not measured | Not measured |
| Jan 28, 2026 | Taiwan Carbon Nano Technology Corp | 10% Owner | S Sale | 46,000 | $2.17 | $99,806 |
| Jan 9, 2026 | Taiwan Carbon Nano Technology Corp | 10% Owner | S Sale | 431 | $1.86 | $802 |
| Jan 8, 2026 | Taiwan Carbon Nano Technology Corp | 10% Owner | S Sale | 850 | $1.80 | $1,534 |
| Nov 25, 2025 | TSAI CHUN-JUNG | Director | A Award | 80,000 | $2.10 | $168,000 |
| Nov 25, 2025 | lee ting-chuan | Director | C Conversion | 80,000 | Not measured | Not measured |
| Nov 25, 2025 | chang wen-han | Director | A Award | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | chiang yao-chung | Director | A Award | 50,000 | $2.10 | $105,000 |
| Nov 25, 2025 | WEI PAO-SHENG | Director | A Award | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | tsai chung-yi | Director | A Award | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | tsai chung-yi | Director | C Conversion | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | WEI PAO-SHENG | Director | C Conversion | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | Lee Hsin-Liang Christopher | CFO | A Award | 20,000 | Not measured | Not measured |
| Nov 25, 2025 | tsai chung-yi | Director | A Award | 50,000 | $2.10 | $105,000 |
| Nov 25, 2025 | chang wen-han | Director | A Award | 50,000 | $2.10 | $105,000 |
| Nov 25, 2025 | chiang yao-chung | Director | A Award | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | chiang yao-chung | Director | C Conversion | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | lee ting-chuan | Director | A Award | 80,000 | $2.10 | $168,000 |
| Nov 25, 2025 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | A Award | 80,000 | Not measured | Not measured |
| Nov 25, 2025 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | C Conversion | 80,000 | Not measured | Not measured |
| Nov 25, 2025 | tsai chun-hsien | CEO, PRESIDENT, CHAIRMAN | A Award | 80,000 | $2.10 | $168,000 |
| Nov 25, 2025 | WEI PAO-SHENG | Director | A Award | 50,000 | $2.10 | $105,000 |
| Nov 25, 2025 | Lee Hsin-Liang Christopher | CFO | A Award | 20,000 | $2.10 | $42,000 |
| Nov 25, 2025 | lee ting-chuan | Director | A Award | 80,000 | Not measured | Not measured |
| Nov 25, 2025 | chang wen-han | Director | C Conversion | 50,000 | Not measured | Not measured |
| Nov 25, 2025 | Lee Hsin-Liang Christopher | CFO | C Conversion | 20,000 | Not measured | Not measured |
The full Form 4 history is on the AIMD company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.