Tjon Karin-Joyce

SEC Form 4 insider trading activity

Tjon Karin-Joyce has filed 4 SEC Form 4 filings (5 transaction rows) across 2 companies, including STI, LPSN, with disclosures dating back to 2025. 3 of those filings fall inside the rolling window. Most recent filing: Sep 16, 2026.

On the most recent filing, Tjon Karin-Joyce is listed as Director at Solidion Technology Inc. Inside the rolling window, Tjon Karin-Joyce reported 1 open-market purchase totaling $36K in STI and no open-market sales.

Companies traded

Other insiders at STI

Insider Buying

$36K

reported purchases (SEC code P)

Insider Selling

$0

reported sales (SEC code S)

Companies

2

in the rolling window

Source
STI
Tjon Karin-Joyce
Purchase$36KSep 16SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Tjon Karin-Joyce made?

Tjon Karin-Joyce has filed 4 SEC Form 4 filings (5 transaction rows) across 2 companies, including STI, LPSN since 2025.

Which companies does Tjon Karin-Joyce trade?

Tjon Karin-Joyce has filed SEC Form 4 disclosures for 2 companies, including STI, LPSN.

When was Tjon Karin-Joyce's most recent SEC Form 4 filing?

Tjon Karin-Joyce's most recent SEC Form 4 filing on Tracefour is dated Sep 16, 2026.

What is Tjon Karin-Joyce's total buy and sell value in the current window?

Inside the rolling retention window, Tjon Karin-Joyce bought $36K and sold $0 based on SEC Form 4 filings.

What was Tjon Karin-Joyce's largest disclosed transaction?

The largest disclosed transaction in the current window is a purchase of 5,000 STI shares on 2026-09-14, worth $36K, per SEC Form 4 filings.