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Flock — Smart-money disclosures, made readable

NPK International Inc

NPKINASDAQ · US

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Holders

BlackRock
13F filer
$54.9M
6,611,891 sh
as-of 30 Jun 2024Stale
Two Sigma Investments
13F filer
$15.4M
1,060,904 sh
as-of 31 Mar 2026Quarterly
Renaissance Technologies
13F filer
$5.2M
362,167 sh
as-of 31 Mar 2026Quarterly

Ownership

Ownership data not yet available for this security.

Disclosure timeline

REDUCEDT+7
Lewis Michael A
NPK International Inc · NASDAQ
−2,013 sh · $28.7K
Filed 19 Aug 2026SEC Form 4view source
DISCLOSEDQuarterly
Two Sigma Investments
NPK International Inc · NASDAQ
1,060,904 sh · $15.4M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDQuarterly
Renaissance Technologies
NPK International Inc · NASDAQ
362,167 sh · $5.2M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
BlackRock
NPK International Inc · NASDAQ
6,611,891 sh · $54.9M
Filed 30 Jun 2024SEC 13Fview source

Announcements

No announcements on record for this security.

NPKINASDAQ · US

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Latest filing19 Aug 2026T+7

3 disclosed holders · 4 disclosures · 0 announcements

Ownership

Ownership data not yet available for this security.

Announcements

No announcements on record for this security.