NPK International (NPKI) Institutional Ownership

$13.19 -0.49 (-3.59%)

Closing price 08/24/2026 03:58 PM Eastern

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$13.18 0.00 (-0.03%)

As of 08/24/2026 05:54 PM Eastern

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Current Institutional Ownership Percentage: 80.81%
Number of Institutional Buyers (last 12 months): 110
Total Institutional Inflows (last 12 months): $220.77M

Number of Institutional Sellers (last 12 months): 88
Total Institutional Outflows (last 12 months): $134.13M

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NPKI Institutional Buying and Selling by Quarter

NPK International Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/24/2026	California State Teachers Retirement System	1,762,064	$28.03M	0.0%	+2,096.6%	2.075%
8/21/2026	AXQ Capital LP	48,652	$774K	0.1%	N/A	0.057%
8/21/2026	XML Financial LLC	27,485	$437K	0.0%	+120.1%	0.032%
8/20/2026	Ancora Advisors LLC	678,760	$10.80M	0.2%	-6.7%	0.799%
8/19/2026	Wellington Management Group LLP	790,335	$12.57M	0.0%	+198.7%	0.931%
8/14/2026	Ancora Advisors LLC	678,760	$10.80M	0.2%	N/A	0.799%
8/10/2026	Tieton Capital Management LLC	820,845	$13.06M	3.8%	N/A	0.967%
8/6/2026	Bank of New York Mellon Corp	242,570	$3.86M	0.0%	N/A	0.286%
7/10/2026	Wasatch Advisors LP	2,811,593	$44.73M	0.3%	-3.0%	3.329%
6/16/2026	Empowered Funds LLC	49,740	$721K	0.0%	-86.8%	0.059%
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5/19/2026	NewEdge Advisors LLC	10,152	$147K	0.0%	-9.0%	0.012%
5/19/2026	Bank of America Corp DE	240,022	$3.48M	0.0%	+21.4%	0.284%
5/18/2026	Royal Bank of Canada	2,404	$35K	0.0%	-47.8%	0.003%
5/18/2026	Electron Capital Partners LLC	1,099,943	$15.94M	0.6%	N/A	1.302%
5/18/2026	Empowered Funds LLC	49,740	$721K	0.0%	-86.8%	0.059%
5/16/2026	The Manufacturers Life Insurance Company	37,493	$543K	0.0%	+50.4%	0.044%
5/16/2026	Quantinno Capital Management LP	26,527	$384K	0.0%	+22.5%	0.031%
5/16/2026	Lazard Asset Management LLC	158,527	$2.30M	0.0%	-33.2%	0.188%
5/15/2026	Rice Hall James & Associates LLC	545,077	$7.90M	0.4%	-0.8%	0.645%
5/15/2026	Punch & Associates Investment Management Inc.	1,818,790	$26.35M	1.5%	-1.8%	2.154%
5/15/2026	Granahan Investment Management LLC	401,658	$5.82M	0.3%	-30.8%	0.476%
5/15/2026	Entropy Technologies LP	10,436	$151K	0.0%	N/A	0.012%
5/14/2026	Renaissance Technologies LLC	362,167	$5.25M	0.0%	-30.3%	0.429%
5/14/2026	Public Employees Retirement System of Ohio	46,293	$671K	0.0%	-13.5%	0.055%
5/14/2026	Arrowstreet Capital Limited Partnership	1,539,088	$22.30M	0.0%	+46.3%	1.822%
5/14/2026	Sei Investments Co.	837,157	$12.13M	0.0%	+121.6%	0.991%
5/14/2026	Walleye Capital LLC	58,425	$847K	0.0%	N/A	0.069%
5/14/2026	State of Wyoming	46,713	$677K	0.1%	+85.2%	0.055%
5/13/2026	Cetera Investment Advisers	22,354	$324K	0.0%	+6.5%	0.026%
5/8/2026	PNC Financial Services Group Inc.	15,199	$220K	0.0%	-11.9%	0.018%
5/7/2026	Dimensional Fund Advisors LP	3,983,658	$57.72M	0.0%	-10.8%	4.717%
5/7/2026	Roubaix Capital LLC	269,935	$3.91M	1.8%	-53.1%	0.320%
5/5/2026	Bank of New York Mellon Corp	266,284	$3.86M	0.0%	-0.8%	0.315%
5/5/2026	Sigma Planning Corp	60,000	$869K	0.0%	N/A	0.071%
5/4/2026	Calamos Advisors LLC	353,627	$5.12M	0.0%	-1.1%	0.419%
5/4/2026	Principal Financial Group Inc.	104,255	$1.51M	0.0%	-9.9%	0.124%
5/1/2026	Fifth Third Bancorp	5,051	$73K	0.0%	N/A	0.006%
4/30/2026	Hsbc Holdings PLC	52,549	$764K	0.0%	+272.2%	0.062%
4/27/2026	Y Intercept Hong Kong Ltd	110,282	$1.60M	0.0%	+4.4%	0.131%
4/25/2026	Strs Ohio	51,400	$745K	0.0%	-7.6%	0.061%
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4/24/2026	MQS Management LLC	13,938	$202K	0.1%	+16.4%	0.017%
4/23/2026	North Star Investment Management Corp.	120,000	$1.74M	0.1%	N/A	0.142%
4/22/2026	Skylands Capital LLC	164,300	$2.38M	0.3%	-3.2%	0.195%
4/22/2026	1492 Capital Management LLC	176,003	$2.55M	1.0%	-0.9%	0.208%
4/22/2026	Pictet Asset Management Holding SA	19,825	$287K	0.0%	+26.3%	0.023%
4/22/2026	Sterling Capital Management LLC	2,719	$39K	0.0%	-42.5%	0.003%
4/21/2026	Wasatch Advisors LP	2,899,021	$42.01M	0.3%	+30.8%	3.434%
4/21/2026	Pinnacle Wealth Management Advisory Group LLC	26,295	$381K	0.0%	-10.9%	0.031%
4/20/2026	OP Asset Management Ltd	333,418	$4.83M	0.0%	N/A	0.395%
4/17/2026	XML Financial LLC	12,485	$181K	0.0%	N/A	0.015%
4/16/2026	SG Americas Securities LLC	95,553	$1.39M	0.0%	+143.3%	0.113%
4/16/2026	ARS Investment Partners LLC	41,209	$597K	0.0%	-5.9%	0.049%
4/16/2026	Diversified Trust Co	31,038	$450K	0.0%	+13.1%	0.037%
3/20/2026	Hsbc Holdings PLC	14,120	$169K	0.0%	N/A	0.017%
2/26/2026	Aristides Capital LLC	15,754	$188K	0.0%	N/A	0.019%
2/18/2026	Mercer Global Advisors Inc. ADV	24,363	$290K	0.0%	+6.5%	0.029%
2/18/2026	Empowered Funds LLC	375,623	$4.48M	0.0%	-14.6%	0.445%
2/18/2026	Zacks Investment Management	31,194	$372K	0.0%	-17.6%	0.037%
2/18/2026	nVerses Capital LLC	12,274	$146K	0.3%	N/A	0.015%
2/18/2026	Uniplan Investment Counsel Inc.	536,108	$6.39M	1.8%	-4.7%	0.634%
2/18/2026	Voloridge Investment Management LLC	83,245	$992K	0.0%	N/A	0.099%
2/18/2026	Wellington Management Group LLP	506,597	$6.04M	0.0%	-23.4%	0.600%
2/18/2026	Tudor Investment Corp ET AL	224,475	$2.68M	0.0%	-55.7%	0.266%
2/18/2026	Susquehanna Fundamental Investments LLC	39,043	$465K	0.0%	+146.4%	0.046%
2/18/2026	Oxford Asset Management LLP	15,035	$179K	0.1%	N/A	0.018%
2/18/2026	Millennium Management LLC	106,487	$1.27M	0.0%	-36.3%	0.126%
2/18/2026	Man Group plc	63,327	$755K	0.0%	N/A	0.075%
2/18/2026	Engineers Gate Manager LP	102,979	$1.23M	0.0%	+505.4%	0.122%
2/18/2026	Balyasny Asset Management L.P.	109,824	$1.31M	0.0%	N/A	0.130%
2/18/2026	Boothbay Fund Management LLC	69,290	$826K	0.0%	+7.1%	0.082%
2/18/2026	Bridgeway Capital Management LLC	625,623	$7.46M	0.2%	-9.3%	0.740%
2/17/2026	AQR Capital Management LLC	174,503	$2.08M	0.0%	+35.8%	0.207%
2/17/2026	Cetera Investment Advisers	20,997	$250K	0.0%	-7.1%	0.025%
2/17/2026	Northeast Financial Group Inc.	65,902	$786K	0.2%	-1.4%	0.078%
2/17/2026	Lazard Asset Management LLC	237,222	$2.83M	0.0%	N/A	0.281%
2/17/2026	Pennant Select LLC	1,014,221	$12.09M	6.4%	-4.5%	1.200%
2/17/2026	ArrowMark Colorado Holdings LLC	977,963	$11.66M	0.3%	-6.6%	1.157%
2/17/2026	Jump Financial LLC	239,259	$2.85M	0.0%	+9.8%	0.283%
2/17/2026	Price T Rowe Associates Inc. MD	61,736	$736K	0.0%	+5.4%	0.073%
2/17/2026	California State Teachers Retirement System	80,829	$963K	0.0%	+6.6%	0.096%
2/17/2026	Russell Investments Group Ltd.	1,880,927	$22.42M	0.0%	-2.7%	2.226%
2/17/2026	Punch & Associates Investment Management Inc.	1,852,804	$22.09M	1.3%	-2.2%	2.193%
2/17/2026	Granahan Investment Management LLC	580,447	$6.92M	0.3%	+16.1%	0.687%
2/17/2026	State of Wisconsin Investment Board	93,891	$1.12M	0.0%	+7.2%	0.111%
2/17/2026	Graham Capital Management L.P.	45,768	$546K	0.0%	+24.6%	0.054%
2/17/2026	Magnetar Financial LLC	32,027	$382K	0.0%	N/A	0.038%
2/17/2026	Rothschild Wealth LLC	138,500	$1.65M	0.2%	N/A	0.164%
2/17/2026	Rice Hall James & Associates LLC	549,721	$6.55M	0.4%	-4.2%	0.651%
2/16/2026	Squarepoint Ops LLC	58,656	$699K	0.0%	+229.4%	0.069%
2/16/2026	Verition Fund Management LLC	175,974	$2.10M	0.0%	+170.6%	0.208%
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2/16/2026	Panagora Asset Management Inc.	669,303	$7.98M	0.0%	-2.0%	0.792%
2/16/2026	Mariner LLC	10,664	$127K	0.0%	N/A	0.013%
2/16/2026	Kennedy Capital Management LLC	184,290	$2.20M	0.0%	-0.6%	0.218%
2/16/2026	Landscape Capital Management L.L.C.	11,015	$131K	0.0%	N/A	0.013%
2/16/2026	Arax Advisory Partners	10,350	$123K	0.0%	-10.0%	0.012%
2/16/2026	Barclays PLC	141,582	$1.69M	0.0%	+27.5%	0.168%
2/13/2026	Kestra Advisory Services LLC	3,350	$40K	0.0%	N/A	0.004%
2/13/2026	The Manufacturers Life Insurance Company	24,929	$297K	0.0%	-8.4%	0.030%
2/13/2026	CANADA LIFE ASSURANCE Co	9,596	$114K	0.0%	-87.7%	0.011%
2/13/2026	Jacobs Levy Equity Management Inc.	477,318	$5.69M	0.0%	-3.1%	0.565%

NPKI Institutional Ownership - Frequently Asked Questions

During the previous two years, 192 institutional investors and hedge funds held shares of NPK International. The most heavily invested institutionals were Ameriprise Financial Inc. ($59.35M), Dimensional Fund Advisors LP ($57.72M), Vanguard Group Inc. ($56.10M), Wasatch Advisors LP ($44.73M), American Century Companies Inc. ($33.60M), California State Teachers Retirement System ($28.03M), and Punch & Associates Investment Management Inc. ($26.35M).Learn more on NPK International's institutional investors.

80.81% of NPK International's stock is owned by institutional investors. Learn more on NPKI's institutional investor holdings.

Of the 169 institutional investors that purchased NPK International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Ameriprise Financial Inc. ($6.10M), Wasatch Advisors LP ($3.66M), American Century Companies Inc. ($2.97M), Conversant Capital LLC ($2.71M), Geode Capital Management LLC ($2.34M), Russell Investments Group Ltd. ($1.93M), and Tieton Capital Management LLC ($1.80M).

Institutional investors have bought a total of 16,649,585 shares in the last 24 months. This purchase volume represents approximately $220.77M in transactions.

Of the 88 institutional investors that sold NPK International's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Dimensional Fund Advisors LP ($1.35M), Perritt Capital Management Inc ($1.05M), Ameriprise Financial Inc. ($851.45K), Wasatch Advisors LP ($849.28K), Empowered Funds LLC ($780.15K), Harbor Capital Advisors Inc. ($676.14K), and Royce & Associates LP ($380.87K).

Institutional investors have sold a total of 11,105,130 shares in the last 24 months. This volume of shares sold represents approximately $134.13M in transactions.

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Institutional ownership data for NYSE:NPKI is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/24/2026. New 13F filings are added each quarter as they're published.

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NPK International (NPKI) Institutional Ownership

NPKI Institutional Buying and Selling by Quarter

NPK International Major Shareholders & Ownership History

NPKI Institutional Ownership - Frequently Asked Questions

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NPK International (NPKI) Institutional Ownership

Institutional Ownership Changes (13F Filings) for NPK International (NYSE:NPKI)

NPKI Institutional Buying and Selling by Quarter

NPK International Major Shareholders & Ownership History

NPKI Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of NPKI shares?

What percentage of NPK International's stock is owned by institutional investors?

Which institutional investors have been buying NPK International's stock?

How much institutional buying is happening at NPK International?

Which of NPK International's major shareholders have been selling company stock?

How much institutional selling is happening at NPK International?

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