NPK International Inc.
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Amalgamated Bank closes position in NPKI / NPK International Inc.

On May 8, 2026 - Amalgamated Bank 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 5, 2026 disclosing 2,579 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)
2026-05-08 2026-03-31 13F NPK INTERNATIONAL COM 651718504 0 -100.00 0
2026-02-05 2025-12-31 13F NPK INTERNATIONAL COM 651718504 2,579 -323 -11.13 0 0.0002
2025-10-29 2025-09-30 13F NPK INTERNATIONAL COM 651718504 2,902 0 0.00 0 0.0002
2025-08-04 2025-06-30 13F NPK INTERNATIONAL COM 651718504 2,902 0 0.00 0 0.0002
2025-04-25 2025-03-31 13F NPK INTERNATIONAL COM 651718504 2,902 344 13.45 0 0.0001
2025-02-04 2024-12-31 13F NPK INTERNATIONAL COM 651718504 2,558 0 0.00 0 0.0002
2024-10-30 2024-09-30 13F NEWPARK RESOURCES COM 651718504 2,558 0 0.00 0 0.0001
2024-08-12 2024-06-30 13F NEWPARK RESOURCES COM 651718504 2,558 0 0.00 0 0.0002
2024-04-23 2024-03-31 13F NEWPARK RESOURCES COM 651718504 2,558 -4,652 -64.52 0 0.0002
2024-02-06 2023-12-31 13F NEWPARK RESOURCES COM 651718504 7,210 -936 -11.49 0 0.0004
2023-11-08 2023-09-30 13F NEWPARK RESOURCES COM 651718504 8,146 0 0.00 0 0.0005
2023-08-11 2023-06-30 13F NEWPARK RESOURCES COM 651718504 8,146 -976 -10.70 0 0.0003
2023-05-02 2023-03-31 13F NEWPARK RESOURCES COM 651718504 9,122 -1,876 -17.06 0 0.0003
2023-02-10 2022-12-31 13F NEWPARK RESOURCES COM 651718504 10,998 0 0.00 0 -100.00 0.0004
2022-11-09 2022-09-30 13F NEWPARK RESOURCES COM 651718504 10,998 0 0.00 28 -17.65 0.0003
2022-08-15 2022-06-30 13F NEWPARK RESOURCES COM 651718504 10,998 77 0.71 34 -15.00 0.0003
2022-08-25 2022-03-31 13F/A-1 NEWPARK RESOURCES COM 651718504 10,921 -832 -7.08 40 14.29 0.0003
2022-06-30 2022-03-31 13F NEWPARK RESOURCES COM 651718504 10,921 -832 40 0.0003
2022-02-15 2021-12-31 13F/A-1 NEWPARK RESOURCES COM 651718504 11,753 -317 -2.63 35 -12.50 0.0003
2022-02-15 2021-12-31 13F NEWPARK RESOURCES COM 651718504 11,753 -317 35 0.0003
2021-10-29 2021-09-30 13F NEWPARK RESOURCES COM 651718504 12,070 -487 -3.88 40 -6.98 0.0003
2021-08-16 2021-06-30 13F NEWPARK RESOURCES COM 651718504 12,557 12,557 43 0.0003
2020-08-10 2020-06-30 13F NEWPARK RESOURCES COM 651718504 0 -14,513 -100.00 0 -100.00
2020-05-13 2020-03-31 13F NEWPARK RESOURCES COM 651718504 14,513 -638 -4.21 13 -86.32 0.0003
2020-02-13 2019-12-31 13F NEWPARK RESOURCES COM 651718504 15,151 1,294 9.34 95 -10.38 0.0017
2019-11-13 2019-09-30 13F NEWPARK RESOURCES COM 651718504 13,857 -205 -1.46 106 1.92 0.0022
2019-08-14 2019-06-30 13F NEWPARK RESOURCES COM 651718504 14,062 895 6.80 104 -14.05 0.0024
2019-05-15 2019-03-31 13F NEWPARK RESOURCES COM 651718504 13,167 366 2.86 121 37.50 0.0029
2019-02-15 2018-12-31 13F NEWPARK RESOURCES COM 651718504 12,801 56 0.44 88 -33.33 0.0025
2018-11-14 2018-09-30 13F NEWPARK RESOURCES COM 651718504 12,745 -93 -0.72 132 -5.04 0.0033
2018-07-18 2018-06-30 13F NEWPARK RESOURCES COM 651718504 12,838 891 7.46 139 43.30 0.0034
2018-05-22 2018-03-31 13F NEWPARK RESOURCES COM 651718504 11,947 -126 -1.04 97 -6.73 0.0026
2018-02-13 2017-12-31 13F NEWPARK RESOURCES COM 651718504 12,073 686 6.02 104 -8.77 0.0028
2017-11-09 2017-09-30 13F NEWPARK RESOURCES COM 651718504 11,387 -586 -4.89 114 29.55 0.0036
2017-08-10 2017-06-30 13F NEWPARK RESOURCES COM 651718504 11,973 725 6.45 88 -3.30 0.0029
2017-05-12 2017-03-31 13F NEWPARK RESOURCES COM 651718504 11,248 21 0.19 91 8.33 0.0045
2017-02-14 2016-12-31 13F NEWPARK RESOURCES COM 651718504 11,227 11,227 84 0.0038
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.