// insider-profile

Griffith William J.G.

This page tracks every SEC Form 4 filing by Griffith William J.G.: 50 transactions in total, including 7 open-market purchases and 7 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 4 insiders purchased shares (net $11.0M). Buying was led by Griffith William J.G..

// track-record

$49.0M
Total purchased
$21.0M
Total sold
14
7B · 7S transactions
Net buyer
Overall direction

Most active in

Largest trade: $16.7M in NTSK (Sep 2025)Filing history: Sep 2025Jul 2026Based on last 50 filings

Transaction History

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jul 13, 2026Griffith William J.G.NTSK
Purchase
64,771$12.42$805K
Jul 13, 2026Griffith William J.G.TTAN
J
435,948
Jul 13, 2026Griffith William J.G.TTAN
J
113,731
Jul 13, 2026Griffith William J.G.TTAN
J
556,878
Jul 13, 2026Griffith William J.G.TTAN
J
93,636

45 more transactions hidden

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// how to read this

Reading an insider's Form 4 history

Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.

The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.