Comparable stake leader
ScentAI Inc.
SEC ownership of Ainos, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001014763.
Disclosed value leader
AINOS INC
Comparable rows
23/33
Latest evidence
03 Jun 2026
- Public ticker
- AIMD, AIMDW on Nasdaq
- Parsed ownership sources
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- ScentAI Inc.
- Latest 13D/G holder
- ScentAI Inc.
- Latest parsed ownership date
- 03 Jun 2026
- Issuer CIK
- 0001014763
- Issuer location
- Houston, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Ainos, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ScentAI Inc.
Disclosed value leader
AINOS INC
Comparable rows
23/33
Latest evidence
03 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 16%
10 rows are not safely comparable across share classes.
13D/G row: ScentAI Inc.
Showing 1-8 of 33 holder rows.
Quick read
ScentAI Inc. leads the comparable SEC ownership view at 16%.
23 of 33 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ScentAI Inc.'s linked filing trail.
Comparable ownership
Top 5
ScentAI Inc.
16%
Taiwan Carbon Nano Technology Corp
14%
Ting-Chuan Lee
11%
ASE Technology Holding Co., Ltd.
8.4%
Chun-Jung Tsai
8.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 33 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ScentAI Inc. |
13D/G
|
16%
|
$2,308,400
1,160,000 shares
|
$0 | 30 Dec 2025 |
| Taiwan Carbon Nano Technology Corp |
3/4/5
13D/G
10%+ Owner · Taiwan Carbon Nano Technology Corporation
|
14%
from 13D/G
|
$2,239,463
948,925 shares
|
-$154,377 | 26 May 2026 |
| Ting-Chuan Lee |
3/4/5
13D/G
Director
|
11%
from 13D/G
|
$1,534,092
807,417 shares
|
-$239,097 | 26 May 2026 |
| ASE Technology Holding Co., Ltd. |
13D/G
|
8.4%
|
$1,020,640
667,085 shares
|
$0 | 12 Apr 2026 |
| Chun-Jung Tsai |
3/4/5
13D/G
Director
|
8.1%
from 13D/G
|
$1,230,832
658,199 shares
|
-$75,673 | 22 May 2026 |
| Chun-Hsien Tsai |
13D/G
3/4/5
CEO, PRESIDENT, CHAIRMAN, Director
|
7%
|
$1,493,754
410,372 shares
|
$0 | 25 Nov 2025 |
| AINOS INC |
3/4/5
13D/G
10%+ Owner
|
5.8%
from 13D/G
|
$7,368,961
12,281,601 shares
|
— | 19 Apr 2023 |
| Wen-Han Chang |
3/4/5
Director
|
1.2%
|
$213,246
101,546 shares
|
— | 25 Nov 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$455,061.
Buys
$100,336
Insiders: 2
Sells
$555,398
Insiders: 3
Net
-$455,061
Shares: -264,304
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 38,570
Shares: 302,874
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 7,379 | 198,090 | $14,086 | $387,891 | -$373,805 |
| 3-6 | 0 | 47,281 | $0 | $102,142 | -$102,142 |
| 6-9 | 0 | 11,706 | $0 | $41,725 | -$41,725 |
| 9-12 | 31,191 | 45,797 | $86,250 | $23,639 | +$62,611 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-16 of 16 reporting-owner rows connected to Ainos, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
16
Largest Forms 3/4/5 holder
AINOS INC
Net 12M change
-$455,061
Latest report
03 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| AINOS INC | 10%+ Owner | $7,368,961 | Mixed | 19 Apr 2023 | ||
| Stephen T. Chen | Former Director & Officer | $4,704,495 | Mixed | 27 Jun 2022 | ||
| Taiwan Carbon Nano Technology Corp | 10%+ Owner | $2,239,463 | -$154,377 | -6.4% | Filing P/S | 26 May 2026 |
| Hsiu-Chen Chiu | Director | $1,800,900 | Mixed | 22 Dec 2021 | ||
| Ting-Chuan Lee | Director | $1,534,092 | -$239,097 | -13% | Filing P/S | 26 May 2026 |
| Chun-Jung Tsai | Director | $1,230,832 | -$75,673 | -5.8% | Filing P/S | 22 May 2026 |
| Chun-Hsien Tsai | CEO, PRESIDENT, CHAIRMAN, Director | $1,165,010 | Mixed | 15 Apr 2026 | ||
| Wen-Han Chang | Director | $213,246 | Mixed | 25 Nov 2025 | ||
| Yao-Chung Chiang | Director | $208,257 | +$14,086 | +7.3% | Mixed | 03 Jun 2026 |
| Chung-Yi Tsai | Director | $190,848 | Mixed | 25 Nov 2025 | ||
| Pao-Sheng Wei | Director | $190,848 | Mixed | 25 Nov 2025 | ||
| Hui-Lan Wu | Chief Financial Officer | $158,858 | Mixed | 30 Jun 2023 | ||
| Hsin-Liang Christopher Lee | Cfo | $158,077 | Mixed | 25 Nov 2025 | ||
| Meng Lin Sung | Chief Financial Officer | $56,701 | Mixed | 16 Feb 2024 | ||
| Lawrence K. Lin | E.V.P. Of Operations | $43,734 | Mixed | 16 Feb 2024 | ||
| ASE Test, Inc. | 10%+ Owner | $41,220 | Mixed | 12 Apr 2026 |
Recent insider transactions for Ainos, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 34.6% | $4,260 | $2.13 | 2,000 | 7,779 | 03 Jun 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 4.52% | $575 | $2.30 | 250 | 5,779 | 28 May 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 56.7% | $4,000 | $2.00 | 2,000 | 5,529 | 27 May 2026 | By Spouse |
| Ting-Chuan Lee | AIMD | Common Stock | Sale | -12% | $208,977 | $1.90 | -109,988 | 807,417 | 26 May 2026 | Direct |
| Taiwan Carbon Nano Technology Corp | AIMD | Common Stock | Sale | -4.14% | $96,760 | $2.36 | -41,000 | 948,925 | 26 May 2026 | Direct |
| Chun-Jung Tsai | AIMD | Common Stock | Sale | -4.04% | $51,833 | $1.87 | -27,718 | 658,199 | 26 May 2026 | Direct |
| Chun-Jung Tsai | AIMD | Common Stock | Sale | -0.16% | $1,677 | $1.55 | -1,082 | 685,917 | 22 May 2026 | Direct |
| Ting-Chuan Lee | AIMD | Common Stock | Sale | -1% | $14,604 | $1.57 | -9,302 | 917,405 | 22 May 2026 | Direct |
| Ting-Chuan Lee | AIMD | Common Stock | Sale | -0.96% | $14,040 | $1.56 | -9,000 | 926,707 | 21 May 2026 | Direct |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 165.5% | $3,696 | $1.68 | 2,200 | 3,529 | 19 May 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 60.3% | $825 | $1.65 | 500 | 1,329 | 18 May 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 18.4% | $219 | $1.70 | 129 | 829 | 05 May 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 40% | $336 | $1.68 | 200 | 700 | 30 Apr 2026 | By Spouse |
| Yao-Chung Chiang | AIMD | Common Stock | Purchase | 25% | $175 | $1.75 | 100 | 500 | 29 Apr 2026 | By Spouse |
| Chun-Jung Tsai | AIMD | Common Stock | Award | 92.4% | 330,000 | 686,999 | 15 Apr 2026 | Direct | ||
| Chun-Jung Tsai | AIMD | RSU | Conversion of derivative security | -100% | -330,000 | 0 | 15 Apr 2026 | Direct | ||
| Chun-Jung Tsai | AIMD | RSU | Award | 330,000 | 330,000 | 15 Apr 2026 | Direct | |||
| Chun-Hsien Tsai | AIMD | Common Stock | Award | 73.1% | 300,000 | 710,372 | 15 Apr 2026 | Direct | ||
| Chun-Hsien Tsai | AIMD | RSU | Conversion of derivative security | -100% | -300,000 | 0 | 15 Apr 2026 | Direct | ||
| Chun-Hsien Tsai | AIMD | RSU | Award | 300,000 | 300,000 | 15 Apr 2026 | Direct | |||
| Ting-Chuan Lee | AIMD | Common Stock | Award | 155.9% | 570,000 | 935,707 | 15 Apr 2026 | Direct | ||
| Ting-Chuan Lee | AIMD | RSU | Conversion of derivative security | -100% | -570,000 | 0 | 15 Apr 2026 | Direct | ||
| Ting-Chuan Lee | AIMD | RSU | Award | 570,000 | 570,000 | 15 Apr 2026 | Direct | |||
| ASE Test, Inc. | AIMD | 6% Convertible Note due 2027 (previously due 2025) | Purchase | 6% | 5,994 | 105,868 | 12 Apr 2026 | Direct | ||
| Taiwan Carbon Nano Technology Corp | AIMD | Common Stock | Sale | -4.44% | $99,806 | $2.17 | -46,000 | 989,925 | 28 Jan 2026 | Direct |
| Taiwan Carbon Nano Technology Corp | AIMD | Common Stock | Sale | -0.04% | $802 | $1.86 | -431 | 1,035,925 | 09 Jan 2026 | Direct |
| Taiwan Carbon Nano Technology Corp | AIMD | Common Stock | Sale | -0.08% | $1,534 | $1.80 | -850 | 1,036,356 | 08 Jan 2026 | Direct |
| Yao-Chung Chiang | AIMD | Common Stock | Award | 121.1% | 50,000 | 91,280 | 25 Nov 2025 | Direct | ||
| Yao-Chung Chiang | AIMD | RSU | Conversion of derivative security | -100% | -50,000 | 0 | 25 Nov 2025 | Direct | ||
| Yao-Chung Chiang | AIMD | RSU | Award | 50,000 | 0 | 25 Nov 2025 | Direct | |||
| Chun-Hsien Tsai | AIMD | Common Stock | Award | 24.2% | 80,000 | 410,372 | 25 Nov 2025 | Direct | ||
| Chun-Hsien Tsai | AIMD | RSU | Conversion of derivative security | -100% | -80,000 | 0 | 25 Nov 2025 | Direct | ||
| Chun-Hsien Tsai | AIMD | RSU | Award | 80,000 | 0 | 25 Nov 2025 | Direct | |||
| Ting-Chuan Lee | AIMD | Common Stock | Award | 28% | 80,000 | 365,707 | 25 Nov 2025 | Direct | ||
| Ting-Chuan Lee | AIMD | RSU | Conversion of derivative security | -100% | -80,000 | 0 | 25 Nov 2025 | Direct | ||
| Ting-Chuan Lee | AIMD | RSU | Award | 80,000 | 0 | 25 Nov 2025 | Direct | |||
| Wen-Han Chang | AIMD | Common Stock | Award | 97% | 50,000 | 101,546 | 25 Nov 2025 | Direct | ||
| Wen-Han Chang | AIMD | RSU | Conversion of derivative security | -100% | -50,000 | 0 | 25 Nov 2025 | Direct | ||
| Wen-Han Chang | AIMD | RSU | Award | 50,000 | 0 | 25 Nov 2025 | Direct | |||
| Chung-Yi Tsai | AIMD | Common Stock | Award | 122.3% | 50,000 | 90,880 | 25 Nov 2025 | Direct | ||
| Chung-Yi Tsai | AIMD | RSU | Conversion of derivative security | -100% | -50,000 | 0 | 25 Nov 2025 | Direct | ||
| Chung-Yi Tsai | AIMD | RSU | Award | 50,000 | 0 | 25 Nov 2025 | Direct | |||
| Pao-Sheng Wei | AIMD | Common Stock | Award | 122.3% | 50,000 | 90,880 | 25 Nov 2025 | Direct | ||
| Pao-Sheng Wei | AIMD | RSU | Conversion of derivative security | -100% | -50,000 | 0 | 25 Nov 2025 | Direct | ||
| Pao-Sheng Wei | AIMD | RSU | Award | 50,000 | 0 | 25 Nov 2025 | Direct | |||
| Hsin-Liang Christopher Lee | AIMD | Common Stock | Award | 36.2% | 20,000 | 75,275 | 25 Nov 2025 | Direct | ||
| Hsin-Liang Christopher Lee | AIMD | RSU | Conversion of derivative security | -100% | -20,000 | 0 | 25 Nov 2025 | Direct | ||
| Hsin-Liang Christopher Lee | AIMD | RSU | Award | 20,000 | 0 | 25 Nov 2025 | Direct | |||
| Chun-Jung Tsai | AIMD | Common Stock | Award | 28.9% | 80,000 | 356,999 | 25 Nov 2025 | Direct | ||
| Chun-Jung Tsai | AIMD | RSU | Conversion of derivative security | -100% | -80,000 | 0 | 25 Nov 2025 | Direct |
* marks a reported price that did not pass the local price check.