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Riverwater Partners LLC

Position in NPKI — NPK International Inc.

CIK 1882572 Milwaukee, WI

Position in NPKI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$3,040,337
+$792,214 QoQ
Shares Held
191,096
+23.2% QoQ
Ownership
0.225%
of shares outstanding
% of Portfolio
1.17%
of 13F equity value
Holder Rank
#64
of 255 holders
Holding Since
Sep 2023
12 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

Riverwater Partners LLC holds $9,279,222 across 8 Building Products & Equipment names. NPKI ranks #2 (32.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 NPKI
NPK International Inc.
This page
191,096 $3,040,337

All Filings in NPKI

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12 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,040,337 191,096
2026-03-31 $2,248,123 155,150
2025-12-31 $1,881,881 157,876
2025-09-30 $439,110 38,825
2025-06-30 $330,400 38,825
2025-03-31 $228,850 39,389
2024-12-31 $481,990 62,841
2024-09-30 $532,528 76,844
2024-06-30 $656,722 79,028
2024-03-31 $543,333 75,254
2023-12-31 $478,836 72,114
2023-09-30 $222,681 32,226