NPKインターナショナル株式会社
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership1,531 shares
Latest Disclosed Value $ 22,185
Quadrant Capital Group Llc ownership in NPKI / NPK International Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 1,531 shares of NPK International Inc. (US:NPKI) valued at $22,184 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,531 shares of NPK International Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $21,863 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)
2026-05-13 2026-03-31 13F/A-1 NPK INTERNATIONAL COM SHS 651718504 1,531 0 0.00 22 22.22 0.0007
2026-05-11 2026-03-31 13F NPK INTERNATIONAL COM SHS 651718504 1,531 0 49 0.0369
2026-02-12 2025-12-31 13F NPK INTERNATIONAL COM SHS 651718504 1,531 0 0.00 18 5.88 0.0006
2025-11-13 2025-09-30 13F NPK INTERNATIONAL COM SHS 651718504 1,531 1,531 17 0.0006
2025-08-13 2025-06-30 13F NPK INTERNATIONAL COM SHS 651718504 0 -1,531 -100.00 0 -100.00
2025-05-13 2025-03-31 13F NPK INTERNATIONAL COM SHS 651718504 1,531 -2,727 -64.04 9 -75.00 0.0003
2025-02-13 2024-12-31 13F NPK INTERNATIONAL COM SHS 651718504 4,258 0 0.00 33 10.34 0.0022
2024-11-12 2024-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 4,258 -341 -7.41 30 -23.68 0.0020
2024-08-12 2024-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 4,599 341 8.01 38 26.67 0.0028
2024-05-15 2024-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 4,258 1,977 86.67 31 100.00 0.0024
2024-02-08 2023-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 2,281 0 0.00 15 0.00 0.0013
2023-11-14 2023-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 2,281 0 0.00 16 36.36 0.0016
2023-08-10 2023-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 2,281 2,281 12 0.0012
2023-05-11 2023-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 0 -661 -100.00 0 -100.00
2023-02-13 2022-12-31 13F NEWPARK RES COM PAR $.01NEW 651718504 661 661 3 0.0003
2020-05-15 2020-03-31 13F Newpark Resources Com 651718504 0 -110 -100.00 0 0.0000
2020-03-19 2019-12-31 13F/A-1 Newpark Resources Com 651718504 110 -211 -65.73 0 -100.00
2020-02-03 2019-12-31 13F Newpark Resources Com 651718504 110 -211 0 0.0000
2019-10-24 2019-09-30 13F Newpark Resources COM 651718504 321 -3,535 -91.68 1 -96.00 0.0002
2019-07-24 2019-06-30 13F Newpark Resources COM 651718504 3,856 3,480 925.53 25 733.33 0.0040
2019-04-29 2019-03-31 13F Newpark Resources COM 651718504 376 0 0.00 3 0.0005
2019-01-17 2018-12-31 13F Newpark Resources COM 651718504 376 110 41.35 0 -100.00
2018-10-29 2018-09-30 13F Newpark Resources COM 651718504 266 0 0.00 2 0.00 0.0006
2018-08-08 2018-06-30 13F Newpark Resources COM 651718504 266 -100 -27.32 2 0.0007
2018-05-10 2018-03-31 13F Newpark Resources COM 651718504 366 366 0 0.0000
2016-04-27 2016-03-31 13F Newpark Resources COM 651718504 0 0 0 0.0000
2016-01-28 2015-12-31 13F Newpark Resources COM 651718504 0 -3,046 -100.00 0 -100.00
2015-10-28 2015-09-30 13F Newpark Resources COM 651718504 3,046 0 0.00 15 -37.50 0.0103
2015-08-12 2015-06-30 13F Newpark Resources COM 651718504 3,046 3,046 24 0.0153
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.