NPK International Inc.
US ˙ NYSE ˙ US6517185046

SecurityNPKI / NPK International Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership29,275 shares
Latest Disclosed Value $ 424,195
Mercer Global Advisors Inc /adv reports 20.16% increase in ownership of NPKI / NPK International Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 29,275 shares of NPK International Inc. (US:NPKI) valued at $424,195 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,363 shares of NPK International Inc.. This represents a change in shares of 20.16% during the quarter. The current value of the position is $418,047 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 29,275 4,912 20.16 424 46.21 0.0006
2026-02-17 2025-12-31 13F NPK INTERNATIONAL COM SHS 651718504 24,363 1,478 6.46 290 12.40 0.0004
2025-11-14 2025-09-30 13F NPK INTERNATIONAL COM SHS 651718504 22,885 -1,403 -5.78 259 25.24 0.0004
2025-08-14 2025-06-30 13F NPK INTERNATIONAL COM SHS 651718504 24,288 4,416 22.22 207 79.13 0.0004
2025-05-15 2025-03-31 13F NPK INTERNATIONAL COM SHS 651718504 19,872 -2,926 -12.83 115 -33.91 0.0003
2025-02-14 2024-12-31 13F NPK INTERNATIONAL COM SHS 651718504 22,798 2,481 12.21 175 23.40 0.0004
2024-11-14 2024-09-30 13F NEWPARK RES COM PAR $.01NEW 651718504 20,317 -68 -0.33 142 -16.57 0.0003
2024-08-12 2024-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 20,385 136 0.67 169 0.0005
2024-05-15 2024-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 20,249 -33,351 -62.22 0 0.0004
2024-02-15 2023-12-31 13F NEWPARK RES COM 651718504 53,600 100 0.19 0 0.0011
2023-11-15 2023-09-30 13F/A-1 NEWPARK RES COM PAR $01NEW 651718504 53,500 32,936 160.16 0 0.0014
2023-11-14 2023-09-30 13F NEWPARK RES COM PAR $01NEW 651718504 53,500 32,936 0 0.0014
2023-08-14 2023-06-30 13F NEWPARK RES COM PAR $.01NEW 651718504 20,564 1,154 5.95 0 0.0004
2023-05-16 2023-03-31 13F NEWPARK RES COM PAR $.01NEW 651718504 19,410 19,410 0 0.0003
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.