Ainos Inc. Insider Trading

AIMD

Last 12 months

Insiders bought 21K and sold 291K on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Director Ting-Chuan Lee sold 209K on May 26, 12% of their stake, outside a plan.

Net open-market

−270K

7 buys · 3 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

1 / 2

executives and directors

Last open-market buy

Jun 2026

Jun 5, 2026

Get an email when AIMD's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Jun 5	Yao-Chung Chiang Director	Bought	3,500	$2.05	7K	45%	Form 4
Jun 3	Yao-Chung Chiang Director	Bought	2,000	$2.13	4K	35%	Form 4
May 28	Yao-Chung Chiang Director	Bought	250	$2.30	$575	4.5%	Form 4
May 27	Yao-Chung Chiang Director	Bought	2,000	$2.00	4K	57%	Form 4
May 26	Ting-Chuan Lee Director	SoldNo plan	109,988	$1.90	209K	12%	Form 4
May 26	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan	41,000	$2.36	97K	4.1%	Form 4
May 22 – 26	Chun-Jung Tsai Director	SoldNo plan 2 parts	28,800	$1.86 average	54K	4.2%	Form 4
May 21 – 22	Ting-Chuan Lee Director	SoldNo plan 2 parts	18,302	$1.57 average	29K	2.0%	Form 4
May 18 – 19	Yao-Chung Chiang Director	Bought 2 parts	2,700	$1.67 average	5K	326%	Form 4
May 5	Yao-Chung Chiang Director	Bought	129	$1.70	$219	18%	Form 4
Apr 29 – 30	Yao-Chung Chiang Director	Bought 2 parts	300	$1.70 average	$511	75%	Form 4
Jan 28	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan	46,000	$2.17	100K	4.4%	Form 4
Jan 8 – 9	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan 2 parts	1,281	$1.82 average	2K	0.1%	Form 4
Oct 6, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan	7,000	$3.59	25K	0.7%	Form 4
Oct 2, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan	2,000	$3.59	7K	0.2%	Form 4
Sep 30, 2025 – Oct 1, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan 2 parts	2,706	$3.48 average	9K	0.3%	Form 4
Aug 5, 2025 – Aug 6, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan 2 parts	31,191	$2.77 average	86K	3.1%	Form 4
Jul 17, 2025 – Jul 18, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan 2 parts	14,001	$2.80 average	39K	1.3%	Form 4
Jun 25, 2025 – Jun 27, 2025	Chun-Jung Tsai Director	SoldNo plan 2 parts	17,000	$0.50 average	9K	1.2%	Form 4
Jun 25, 2025	Ting-Chuan Lee Director	SoldNo plan	2,894	$0.51	1K	0.2%	Form 4
Jun 23, 2025	Taiwan Carbon Nano Technology Corp Large holder	SoldNo plan	29,476	—	—	0.5%	Form 4
Jun 23, 2025	ASE Test, Inc. Large holder	Bought	29,476	—	—	100%	Form 4
Jun 18, 2025 – Jun 23, 2025	Chun-Jung Tsai Director	SoldNo plan 3 parts	25,903	$0.52 average	14K	1.8%	Form 4

Jun 5
Yao-Chung Chiang
Director · bought 3,500 at $2.05
7K
45% of stake
Jun 3
Yao-Chung Chiang
Director · bought 2,000 at $2.13
4K
35% of stake
May 28
Yao-Chung Chiang
Director · bought 250 at $2.30
$575
4.5% of stake
May 27
Yao-Chung Chiang
Director · bought 2,000 at $2.00
4K
57% of stake
May 26No plan
Ting-Chuan Lee
Director · sold 109,988 at $1.90
209K
12% of stake
May 26No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 41,000 at $2.36
97K
4.1% of stake
May 22 – 26No plan
Chun-Jung Tsai
Director · sold 28,800 at avg $1.86
54K
4.2% of stake
May 21 – 22No plan
Ting-Chuan Lee
Director · sold 18,302 at avg $1.57
29K
2.0% of stake
May 18 – 19
Yao-Chung Chiang
Director · bought 2,700 at avg $1.67
5K
326% of stake
May 5
Yao-Chung Chiang
Director · bought 129 at $1.70
$219
18% of stake
Apr 29 – 30
Yao-Chung Chiang
Director · bought 300 at avg $1.70
$511
75% of stake
Jan 28No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 46,000 at $2.17
100K
4.4% of stake
Jan 8 – 9No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 1,281 at avg $1.82
2K
0.1% of stake
Oct 6, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 7,000 at $3.59
25K
0.7% of stake
Oct 2, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 2,000 at $3.59
7K
0.2% of stake
Sep 30, 2025 – Oct 1, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 2,706 at avg $3.48
9K
0.3% of stake
Aug 5, 2025 – Aug 6, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 31,191 at avg $2.77
86K
3.1% of stake
Jul 17, 2025 – Jul 18, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 14,001 at avg $2.80
39K
1.3% of stake
Jun 25, 2025 – Jun 27, 2025No plan
Chun-Jung Tsai
Director · sold 17,000 at avg $0.50
9K
1.2% of stake
Jun 25, 2025No plan
Ting-Chuan Lee
Director · sold 2,894 at $0.51
1K
0.2% of stake
Jun 23, 2025No plan
Taiwan Carbon Nano Technology Corp
Large holder · sold 29,476
—
0.5% of stake
Jun 23, 2025
ASE Test, Inc.
Large holder · bought 29,476
—
100% of stake
Jun 18, 2025 – Jun 23, 2025No plan
Chun-Jung Tsai
Director · sold 25,903 at avg $0.52
14K
1.8% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch AIMD, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

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