NPKI SCHEDULE 13G/A: SEC filing

An institutional holder

Filed with the SEC on Oct 30, 2026 · accession 0002100119-26-001701

NPKI filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Oct 30, 2026. An institutional holder filed an amended Schedule 13G for NPK International Inc., indicating a change in passive ownership position. The stock moved -16.5% by the first close after the filing.

Summary of the filing

An institutional holder filed an amended Schedule 13G for NPK International Inc., indicating a change in passive ownership position. The filing does not disclose a specific activist intent or material corporate event.

For details, click here →

Key details

IssuerNPK International Inc.

How NPKI stock reacted

Close before

$11.20

Oct 29, 2026

First close after

-16.52%

$9.35

5 trading days

—

Since filing

-17.50%

$9.24

✦ Ask GOAX AI about this filing — what it means for NPKI, what changed since its last filings and what to watch next.

Try it free for 7 days

🔔 Want to stay updated on new SEC filings for NPKI?

Click here

Frequently asked questions

What did NPKI file with the SEC on Oct 30, 2026?

NPKI filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for NPK International Inc., indicating a change in passive ownership position. The filing does not disclose a specific activist intent or material corporate event.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did NPKI stock react to this filing?

NPKI closed at $11.20 before the filing and $9.35 on Oct 30, 2026 (-16.52%).

Other NPKI SEC filings

Get alerts when NPKI files with the SEC, plus live charts, key levels and news for 13,000+ stocks.

Try SEPT free for 7 days

NPKI overview NPKI analysis NPKI news Latest SEC filings