NPK International Inc. (NPKI) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

80,771,429Shares Outstanding

565,406Shares held by institutions

$8,209,695Value of institutional holdings

93.07%Institutional ownership %

5.70%Shares Changed QoQ

228No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 228 institutional investors hold a position in NPK International Inc. (NYSE:NPKI).

The percentage of NPK International owned by institutions changed from 91.6% in September 2025 to 93.1% in December 2025, marking a slight up trend.
The company experienced a 5.70% quarterly change in institutional shares held, alongside an increase of 29.55% in total owners annually.
A review of institutional activity for NPK International shows 128 of 228 filers increasing their positions, while 78 reduced their stake, and 22 remained unchanged.
Collectively, institutional investors increased their stake in NPK International to 75.18Mn shares as of December 2025, a change that is up by 4.06Mn shares quarter on quarter and down 2.77Mn shares year over year.
With 6.92Mn shares, BlackRock, Inc. commands the largest institutional position in NPK International as of December 31, 2025, equating to 8.57% of the company.
Among the most significant buyers of NPK International during December 2025 were THRIVENT FINANCIAL FOR LUTHERANS (1.59Mn), ALGERT GLOBAL LLC (785.88K), FIRST SABREPOINT CAPITAL MANAGEMENT LP (650.00K), Nuveen, LLC (597.11K), Uniplan Investment Counsel, Inc. (534.57K).
Leading sellers of NPK International stock in December 2025 included Bank of New York Mellon Corp (582.52K), CANNELL CAPITAL LLC (513.45K), GEODE CAPITAL MANAGEMENT, LLC (344.08K), DIMENSIONAL FUND ADVISORS LP (330.91K), TUDOR INVESTMENT CORP ET AL (282.11K).
The top 10 institutional holders of NPK International for the quarter ending December 2025 included BlackRock, Inc. (6.92Mn), AMERIPRISE FINANCIAL INC (5.17Mn), VANGUARD GROUP INC (4.71Mn), DIMENSIONAL FUND ADVISORS LP (4.47Mn), AMERICAN CENTURY COMPANIES INC (3.07Mn), WASATCH ADVISORS LP (2.22Mn), ROYCE & ASSOCIATES LP (2.19Mn), GEODE CAPITAL MANAGEMENT, LLC (1.98Mn), STATE STREET CORP (1.98Mn), PRUDENTIAL FINANCIAL INC (1.92Mn).

228 Institutional Holders

565,406 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	6,919,616	454,407	7.03%	$82,481,828.00
AMERIPRISE FINANCIAL INC	31 Dec, 2025	5,165,210	-82,427	-1.57%	$61,569,300.00
VANGUARD GROUP INC	31 Dec, 2025	4,706,012	-44,251	-0.93%	$56,095,663.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	4,466,550	-330,908	-6.90%	$53,242,403.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	3,071,640	100,574	3.39%	$36,613,949.00
WASATCH ADVISORS LP	31 Dec, 2025	2,215,905	-65,959	-2.89%	$26,413,588.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	2,185,610	-256,670	-10.51%	$26,052,471.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,977,755	-344,079	-14.82%	$23,578,152.00
STATE STREET CORP	31 Dec, 2025	1,977,000	-54,279	-2.67%	$23,565,840.00
PRUDENTIAL FINANCIAL INC	31 Dec, 2025	1,918,912	91,367	5.00%	$22,873,431.00
Russell Investments Group, Ltd.	31 Dec, 2025	1,880,927	-52,599	-2.72%	$22,420,648.00
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	31 Dec, 2025	1,852,804	-41,922	-2.21%	$22,085,428.00
MORGAN STANLEY	31 Dec, 2025	1,693,062	50,157	3.05%	$20,181,309.00
THRIVENT FINANCIAL FOR LUTHERANS	31 Dec, 2025	1,587,729	1,587,729	0.00%	$18,926.00
LOOMIS SAYLES & CO L P	31 Dec, 2025	1,287,030	-47,199	-3.54%	$15,341,397.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	1,163,775	97,392	9.13%	$13,872,198.00
Nuveen, LLC	31 Dec, 2025	1,118,057	597,114	114.62%	$13,327,239.00
Uniplan Investment Counsel, Inc.	31 Dec, 2025	1,097,217	534,572	95.01%	$13,078,842.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	1,052,242	168,671	19.09%	$12,542,725.00
Pennant Select, LLC	31 Dec, 2025	1,014,221	-48,042	-4.52%	$12,089,514.00

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