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HARBOR CAPITAL ADVISORS, INC.

Position in NPKI — NPK International Inc.

CIK 1039128 CHICAGO, IL

Position in NPKI

as of Jun 30, 2026 · filed Aug 7, 2026
Position Value
$2,359,405
-$329,982 QoQ
Shares Held
148,297
-20.1% QoQ
Ownership
0.175%
of shares outstanding
% of Portfolio
0.18%
of 13F equity value
Holder Rank
#73
of 256 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in NPKI Over Time

Shares Held

Position Value (USD)

Position in Building Products & Equipment

Industrials · as of Jun 30, 2026

HARBOR CAPITAL ADVISORS, INC. holds $13,085,586 across 11 Building Products & Equipment names. NPKI ranks #3 (18.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 NPKI
NPK International Inc.
This page
148,297 $2,359,405

All Filings in NPKI

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,359,405 148,297
2026-03-31 $2,689,387 185,603
2025-12-31 $2,606,296 218,649
2025-09-30 $2,606,106 230,425
2025-06-30 $7,614,688 894,793
2025-03-31 $2,756,060 474,365
2024-12-31 $3,610,874 470,779
2024-09-30 $2,419,512 349,136
2024-06-30 $537,781 64,715