NPK International Inc.
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionCoreCommodity Management, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
CoreCommodity Management, LLC closes position in NPKI / NPK International Inc.

On May 15, 2026 - CoreCommodity Management, LLC filed a 13F-HR form disclosing ownership of 0 shares of NPK International Inc. (US:NPKI) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 26,414 shares of NPK International Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F NPK INTERNATIONAL COM SHS 651718504 0 -100.00 0
2026-02-12 2025-12-31 13F NPK INTERNATIONAL COM SHS 651718504 26,414 -44,523 -62.76 315 -60.85 0.0661
2025-11-14 2025-09-30 13F NPK INTERNATIONAL COM SHS 651718504 70,937 -17,750 -20.01 802 6.37 0.1456
2025-08-14 2025-06-30 13F NPK INTERNATIONAL COM SHS 651718504 88,687 -1,512 -1.68 755 43.89 0.1242
2025-05-15 2025-03-31 13F NPK INTERNATIONAL COM SHS 651718504 90,199 22,082 32.42 524 0.38 0.0852
2025-02-14 2024-12-31 13F NPK INTERNATIONAL COM SHS 651718504 68,117 68,117 522 0.1020
2020-08-12 2020-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -14,183 -100.00 0 -100.00
2020-05-13 2020-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 14,183 0 0.00 13 -85.39 0.0150
2020-02-04 2019-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 14,183 14,183 89 0.0496
2017-08-14 2017-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -5,563 -100.00 0 -100.00
2017-05-15 2017-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 5,563 5,563 45 0.0365
2017-02-14 2016-12-31 13F NEWPARK RESOURCES COM PAR $.01NEW 651718504 0 -512 -100.00 0 -100.00
2016-11-14 2016-09-30 13F NEWPARK RESOURCES COM PAR $.01NEW 651718504 512 512 0.00 4 0.0041
2016-05-16 2016-03-31 13F NEWPARK RESOURCES COM PAR $.01NEW 651718504 0 -28,003 -100.00 0 -100.00
2016-02-16 2015-12-31 13F NEWPARK RESOURCES COM PAR $.01NEW 651718504 28,003 3,454 14.07 148 17.46 0.1386
2015-11-16 2015-09-30 13F NEWPARK RES COM PAR $.01 NEW 651718504 24,549 24,549 0.00 126 0.1160
2015-08-14 2015-06-30 13F NEWPARK RESOURCES COM PAR $.01 NEW 651718504 0 -28,502 -100.00 0 -100.00
2015-05-15 2015-03-31 13F NEWPARK RESOURCES COM PAR $.01 NEW 651718504 28,502 0 0.00 260 -4.41 0.1640
2015-02-17 2014-12-31 13F NEWPARK RES COM PAR $.01 NEW 651718504 28,502 16,186 131.42 272 77.78 0.2037
2014-11-14 2014-09-30 13F NEWPARK RESOURCES COM PAR $.01NEW 651718504 12,316 0 0.00 153 0.00 0.0795
2014-08-14 2014-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 12,316 12,316 153 0.0729
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.