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CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Position in NPKI — NPK International Inc.

CIK 884546 SAN FRANCISCO, CA

Position in NPKI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$16,357,277
+$482,019 QoQ
Shares Held
1,028,113
-6.2% QoQ
Ownership
1.21%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#24
of 255 holders
Holding Since
Mar 2020
26 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

CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $3,249,012,722 across 28 Building Products & Equipment names. NPKI ranks #20 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in NPKI

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $16,357,277 1,028,113
2026-03-31 $15,875,258 1,095,601
2025-12-31 $13,872,198 1,163,775
2025-09-30 $12,060,791 1,066,383
2025-06-30 $8,110,361 953,039
2025-03-31 $4,991,649 859,148
2024-12-31 $5,725,693 746,505
2024-09-30 $5,300,569 764,873
2024-06-30 $2,820,148 339,368
2024-03-31 $2,501,896 346,523
2023-12-31 $1,389,320 209,235
2023-09-30 $1,419,735 205,461
2023-06-30 $1,079,717 206,447
2023-03-31 $880,930 228,813
2022-12-31 $979,234 235,960
2022-09-30 $582,525 231,161
2022-06-30 $698,828 226,158
2022-03-31 $882,385 241,089
2021-12-31 $697,062 237,096
2021-09-30 $752,178 227,933
2021-06-30 $2,172,177 627,797
2021-03-31 $1,941,939 618,452
2020-12-31 $3,552,520 1,850,271
2020-09-30 $1,570,191 1,495,420
2020-06-30 $3,116,351 1,397,467
2020-03-31 $1,156,639 1,285,155