NPK International Inc.
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership370,908 shares
Latest Disclosed Value $ 5,374
Algert Global Llc reports 52.80% decrease in ownership of NPKI / NPK International Inc.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 370,908 shares of NPK International Inc. (US:NPKI) valued at $5,374,457 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 785,880 shares of NPK International Inc.. This represents a change in shares of -52.80% during the quarter. The current value of the position is $5,422,675 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)
2026-05-14 2026-03-31 13F NPK INTERNATIONAL COM SHS 651718504 370,908 -414,972 -52.80 5 -44.44 0.0808
2026-02-17 2025-12-31 13F NPK INTERNATIONAL COM SHS 651718504 785,880 785,880 9 0.1461
2024-11-12 2024-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 0 -28,942 -100.00 0 0.0000
2024-08-15 2024-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 28,942 -161,418 -84.80 0 -100.00 0.0080
2024-05-15 2024-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 190,360 133,750 236.27 1 0.0538
2024-02-14 2023-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 56,610 -24,240 -29.98 0 0.0151
2023-11-13 2023-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 80,850 -1,300 -1.58 1 0.0263
2023-08-14 2023-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 82,150 -1,930 -2.30 0 0.0187
2023-05-12 2023-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 84,080 19,910 31.03 0 0.0153
2023-02-14 2022-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 64,170 3,410 5.61 0 -100.00 0.0147
2022-11-15 2022-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 60,760 -16,000 -20.84 153 -35.44 0.0092
2022-08-15 2022-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 76,760 35,260 84.96 237 55.92 0.0178
2022-05-16 2022-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 41,500 41,500 152 0.0100
2022-02-14 2021-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 0 -26,766 -100.00 0 -100.00
2021-11-15 2021-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 26,766 -21,904 -45.01 88 -47.62 0.0117
2021-08-13 2021-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 48,670 48,670 168 0.0566
2019-05-01 2019-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 0 -73,798 -100.00 0 -100.00
2019-02-01 2018-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 73,798 -88,030 -54.40 507 -69.73 0.1414
2018-11-14 2018-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 161,828 52,296 47.74 1,675 40.99 0.3612
2018-08-01 2018-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 109,532 3,486 3.29 1,188 38.30 0.2467
2018-05-02 2018-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 106,046 13,091 14.08 859 7.51 0.1664
2018-02-01 2017-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 92,955 4,746 5.38 799 -9.41 0.1886
2017-11-16 2017-09-30 13F NEWPARK RES COM PAR $.01NE 651718504 88,209 44,218 100.52 882 173.07 0.2017
2017-07-31 2017-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 43,991 43,991 323 0.0907
2015-08-24 2015-06-30 13F NEWPARK RES COM PAR $.01NE 651718504 0 -33,940 -100.00 0 -100.00
2015-05-12 2015-03-31 13F NEWPARK RES COM PAR $.01NE 651718504 33,940 5,590 19.72 309 14.44 0.1715
2015-02-11 2014-12-31 13F NEWPARK RES COM PAR $.01NE 651718504 28,350 28,350 270 0.1599
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.