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sellWeak

Taiwan Carbon Nano Technology Corp sold $86k of AIMD

owner at Ainos, Inc.. 31,191 shares at an average of $2.77, traded Aug 5, 2025, filed Aug 7, 2025.

Warning score
21
Value
$86k
31,191 shares
Holdings after
1,048,912
-3% from before
From 52-week low
+9%
low $2.13, close $2.33
From 52-week high
-43%
high $4.09, as of Aug 5, 2025

Score components

  • Role
    10% owner
    +12
  • Trade size
    $86k at market
    +9
  • Share of holdings sold
    Sold 2.9% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +7.4%, 3m -10.3%, 6m -40.0%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

AIMDOct 12, 2026 · close 1.14
Since filing Aug 7, 2025: -64.9%SPY +24.7% · excess -89.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001641172-25-022587, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 5, 2025SOpen-market sale
Common Stock
+11,191$2.44$27k1,068,912Aug 7, 2025
Aug 6, 2025SOpen-market sale
Common Stock
+20,000$2.95$59k1,048,912Aug 7, 2025

Related signals

Other insiders at Ainos, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
34Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$7,175
3,500 shares
+45%
34Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$4,260
2,000 shares
+35%
28Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$575
250 shares
+5%
38Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$4,000
2,000 shares
+57%
37Weak
AIMDsell 3
Ainos, Inc.
chung-jung tsai
director
$54k
28,800 shares
-4%
37Weak
AIMDsell 3
Ainos, Inc.
Taiwan Carbon Nano Technology Corp
owner
$97k
41,000 shares
-4%
47Moderate
AIMDsell 3
Ainos, Inc.
ting-chuan lee
director
$209k
109,988 shares
-12%
35Weak
AIMDsell 3
Ainos, Inc.
ting-chuan lee
director
$29k
18,302 shares
-2%
38Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$4,521
2,700 shares
+326%
31Weak
AIMDbuy
Ainos, Inc.
yao-chung chiang
director
$219
129 shares
+18%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Taiwan Carbon Nano Technology Corp sold $86k of AIMD | InsiderTell