NPK International Inc.
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership138,068 shares
Latest Disclosed Value $ 2,000,605
Squarepoint Ops LLC reports 135.39% increase in ownership of NPKI / NPK International Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 138,068 shares of NPK International Inc. (US:NPKI) valued at $2,000,605 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 58,656 shares of NPK International Inc.. This represents a change in shares of 135.39% during the quarter. The current value of the position is $1,996,463 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 138,068 79,412 135.39 2,001 186.12 0.0024
2026-02-13 2025-12-31 13F NPK INTERNATIONAL COM SHS 651718504 58,656 40,851 229.44 699 247.76 0.0007
2025-11-14 2025-09-30 13F NPK INTERNATIONAL COM SHS 651718504 17,805 17,805 201 0.0002
2025-08-27 2025-06-30 13F/A-1 NPK INTERNATIONAL COM SHS 651718504 0 -62,697 -100.00 0 -100.00
2025-08-14 2025-06-30 13F NPK INTERNATIONAL COM SHS 651718504 0 -62,697 0
2025-08-27 2025-03-31 13F/A-1 NPK INTERNATIONAL COM SHS 651718504 62,697 2,663 4.44 364 -20.87 0.0004
2025-05-15 2025-03-31 13F NPK INTERNATIONAL COM SHS 651718504 62,697 2,663 364 0.0004
2025-02-14 2024-12-31 13F NPK INTERNATIONAL COM SHS 651718504 60,034 45,982 327.23 460 374.23 0.0005
2024-11-14 2024-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 14,052 14,052 97 0.0002
2024-08-14 2024-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -266,593 -100.00 0 -100.00
2024-05-15 2024-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 266,593 -45,367 -14.54 1,925 -7.10 0.0033
2024-02-14 2023-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 311,960 209,933 205.76 2,071 193.76 0.0039
2023-11-14 2023-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 102,027 -159,107 -60.93 705 -48.35 0.0017
2023-08-14 2023-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 261,134 177,399 211.86 1,366 323.91 0.0042
2023-05-15 2023-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 83,735 27,802 49.71 322 38.79 0.0013
2023-02-14 2022-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 55,933 55,933 232 0.0009
2022-08-15 2022-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -10,760 -100.00 0 -100.00
2022-05-16 2022-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 10,760 -16,923 -61.13 39 -51.85 0.0002
2022-02-14 2021-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 27,683 -754 -2.65 81 -13.83 0.0002
2021-11-15 2021-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 28,437 -76,114 -72.80 94 -74.03 0.0003
2021-08-16 2021-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 104,551 25,594 32.42 362 45.97 0.0014
2021-05-17 2021-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 78,957 78,957 248 0.0015
2021-02-16 2020-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -214,807 -100.00 0 -100.00
2020-11-16 2020-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 214,807 174,526 433.27 226 151.11 0.0030
2020-08-14 2020-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 40,281 -152,096 -79.06 90 -47.98 0.0015
2020-05-15 2020-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 192,377 154,650 409.92 173 -27.00 0.0044
2020-02-14 2019-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 37,727 37,727 237 0.0014
2019-08-14 2019-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -24,206 -100.00 0 -100.00
2019-05-15 2019-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 24,206 24,206 222 0.0024
2019-02-14 2018-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -47,200 -100.00 0 -100.00
2018-11-14 2018-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 47,200 47,200 489 0.0059
2016-08-15 2016-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -10,528 -100.00 0 -100.00
2016-05-16 2016-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 10,528 -11,486 -52.18 45 -61.21 0.0035
2016-02-16 2015-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 22,014 22,014 116 0.0127
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.