Massivemarkets

SEC Form 4

Nabors Industries Ltd. (NBR) insider trading

In the 12 months to Oct 23, 2026, one NBR insider reported open-market sales of $295.4K across 1 filing; one director bought $500.7K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$295.4K
1 filing · 1 insider
Open-market purchases
$500.7K
1 filing · John Yearwood, Director

Who traded NBR, and when

  • Purchase
  • Sale

NBR daily close from Oct 23, 2025 to Oct 23, 2026, between $46.19 and $110.63, last $81.62. 1 sale and 1 purchase filings by 2 insiders, marked at their filing dates. John Yearwood, Director: bought $500.7K across 1 filing, first filed Feb 24, 2026, last Feb 24, 2026. David J. Tudor, Director: sold $295.4K across 1 filing, first filed Aug 28, 2026, last Aug 28, 2026.

Largest mark · tap a row for others

John Yearwood · Director

Purchase $500,747

6,410 shares at $78.12 avg

Filed Feb 24, 2026 · traded Feb 20

Close on filing date $77.77

NBR daily closelast $81.62

John Yearwood · Director

$500.7K bought

David J. Tudor · Director

$295.4K sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Nabors Industries Ltd.'s CEO sold stock?

No. Anthony G. Petrello (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

2 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
John YearwoodDirector—$500.7K1—
David J. TudorDirector$295.4K—1—
Other insider activity (not market trades) · 35 records
  • Option exercises7 records
  • Tax withholding12 records
  • Grants and awards13 records
  • Gifts1 record
  • Other2 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for NBR every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.