Skip to content
buyWeak cluster of 3

Karin-Joyce Tjon bought $36k of STI

director at Solidion Technology Inc.. 5,000 shares at an average of $7.20, traded Sep 14, 2026, filed Sep 15, 2026.

Conviction score
39
Value
$36k
5,000 shares
Holdings after
58,053
+9% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $36k at market
    +6
  • Relative to holdings
    Holdings up 9%
    +3
  • Price context
    No price history yet
    0
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

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.

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.

STIOct 9, 2026 · close 5.69
Since filing Sep 15, 2026: -14.2%SPY +3.1% · excess -17.2%

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 0001213900-26-100270, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 14, 2026POpen-market purchase
Common Stock
+5,000$7.20$36k58,05328 d ago

Related signals

Other insiders at Solidion Technology Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
43Moderate
STIbuy 3
Solidion Technology Inc.
Vlad Prantsevich
Chief Financial Officer
$7,344
1,030 shares
+42%
46Moderate
STIbuy 3
Solidion Technology Inc.
Jaymes Winters
Chief Executive Officer
$6,996
984 shares
+26%
35Weak
STIbuy
Solidion Technology Inc.
Henry Ikezi
owner
$644k
26,000 shares
+4%
50Moderate
STIsell 2
Solidion Technology Inc.
Henry Ikezi
owner
$12M
394,888 shares
-55%
50Moderate
STIsell 2
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$3.7M
175,000 shares
-10%
12Weak
STIsell
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$10k
1,318 shares
-0%
22Weak
STIsell
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$106k
10,000 shares
-1%
24Weak
STIsell
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$183k
34,000 shares
-3%
12Weak
STIsell
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$17k
5,018 shares
-0%
12Weak
STIsell
Solidion Technology Inc.
Global Graphene Group, Inc.
owner
$21k
6,069 shares
-0%

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.

Karin-Joyce Tjon bought $36k of STI | InsiderTell