NPK International Inc. - Common Stock (NPKI) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
NPKI on NYSE
Shares outstanding
84,639,306
Price per share
$11.92
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
73,991,069
Total reported value
$836,869,720
% of total 13F portfolios
0.01%
Share change
-1,808,870
Value change
-$11,217,397
Number of holders
206
Price from insider filings
$11.92
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of NPK International Inc. - Common Stock (NPKI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
AMERIPRISE FINANCIAL INC 6.2% -19% $59,350,774 -$16,389,988 5,247,637 -22% Ameriprise Financial, Inc. 30 Sep 2025
DIMENSIONAL FUND ADVISORS LP 5.7% $54,259,250 4,797,458 Dimensional Fund Advisors LP 30 Sep 2025

As of 30 Sep 2025, 206 institutional investors reported holding 73,991,069 shares of NPK International Inc. - Common Stock (NPKI). This represents 87% of the company’s total 84,639,306 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of NPK International Inc. - Common Stock (NPKI) together control 64% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 7.6% 6,465,209 -2% 0% $73,121,513
AMERIPRISE FINANCIAL INC 6.2% 5,247,637 -14% 0.01% $59,350,774
DIMENSIONAL FUND ADVISORS LP 5.7% 4,797,458 -10% 0.01% $54,258,862
VANGUARD GROUP INC 5.6% 4,750,263 +0.42% 0% $53,725,475
AMERICAN CENTURY COMPANIES INC 3.5% 2,971,066 +13% 0.02% $33,602,756
ROYCE & ASSOCIATES LP 2.9% 2,442,280 -4.8% 0.28% $27,622,187
GEODE CAPITAL MANAGEMENT, LLC 2.7% 2,321,834 -0.57% 0% $26,263,261
WASATCH ADVISORS LP 2.7% 2,281,864 -23% 0.14% $25,807,882
STATE STREET CORP 2.4% 2,031,279 -1.5% 0% $22,973,765
Russell Investments Group, Ltd. 2.3% 1,933,526 +47% 0.02% $21,868,181
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 2.2% 1,894,726 +1.5% 1.2% $21,429,356
PRUDENTIAL FINANCIAL INC 2.2% 1,827,545 +341% 0.02% $20,669,534
MORGAN STANLEY 1.9% 1,642,905 -16% 0% $18,581,265
ACK Asset Management LLC 1.9% 1,576,808 +29% 2.2% $17,833,698
CANNELL CAPITAL LLC 1.7% 1,454,204 -4.2% 4.3% $16,447,047
LOOMIS SAYLES & CO L P 1.6% 1,334,229 -13% 0.02% $15,090,130
Ancora Advisors LLC 1.4% 1,195,880 -17% 0.27% $13,525,402
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.3% 1,066,383 +12% 0% $12,060,792
Pennant Select, LLC 1.3% 1,062,263 -2.4% 7.6% $12,014,195
ArrowMark Colorado Holdings LLC 1.2% 1,047,050 -23% 0.22% $11,842,136
Tieton Capital Management, LLC 1.2% 1,012,982 +3.5% 4% $11,457,000
NORTHERN TRUST CORP 1.2% 987,985 -0.2% 0% $11,174,109
SILVERCREST ASSET MANAGEMENT GROUP LLC 1.1% 921,210 -2.7% 0.07% $10,418,885
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1% 883,571 +174% 0.01% $9,993,188
Bank of New York Mellon Corp 1% 850,913 +213% 0% $9,623,826

Institutional Holders of NPK International Inc. - Common Stock (NPKI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 427,188 $5,113,965 -$176,779 $11.92 11
2025 Q3 73,991,069 $836,869,720 -$11,217,397 $11.31 206
2025 Q2 75,771,108 $644,826,745 +$2,553,553 $8.51 184
2025 Q1 75,613,744 $439,378,384 -$17,789,088 $5.81 171
2024 Q4 78,044,913 $598,531,879 +$31,426,627 $7.67 176
2024 Q3 73,714,352 $511,328,742 +$5,896,069 $6.93 188
2024 Q2 71,875,495 $597,060,640 +$33,711,512 $8.31 196
2024 Q1 68,017,267 $491,085,052 +$1,379,337 $7.22 185
2023 Q4 68,893,315 $457,509,385 +$35,761,867 $6.64 180
2023 Q3 64,166,955 $443,444,526 +$43,507,577 $6.91 149
2023 Q2 58,198,078 $304,378,259 +$6,742,021 $5.23 127
2023 Q1 57,198,190 $220,213,665 -$11,379,819 $3.85 119
2022 Q4 59,995,745 $248,988,526 -$18,791,129 $4.15 118
2022 Q3 64,783,931 $163,335,708 -$5,053,631 $2.52 112
2022 Q2 66,407,822 $205,087,181 -$887,197 $3.09 114
2022 Q1 66,719,288 $244,209,813 +$11,539,403 $3.66 123
2021 Q4 63,563,035 $186,671,481 -$3,506,642 $2.94 108
2021 Q3 64,348,431 $211,974,078 -$7,211,408 $3.30 106
2021 Q2 66,349,386 $229,631,610 +$5,119,094 $3.46 119
2021 Q1 65,430,990 $205,643,712 +$12,531,601 $3.14 112
2020 Q4 62,024,224 $119,081,073 -$21,314,575 $1.92 97
2020 Q3 72,293,450 $75,922,407 -$2,635,719 $1.05 115
2020 Q2 73,631,511 $164,111,372 -$8,791,889 $2.23 125
2020 Q1 81,298,344 $72,912,179 -$65,920,997 $0.90 127
2019 Q4 88,747,324 $556,133,067 -$11,591,141 $6.27 163
2019 Q3 90,519,480 $689,738,891 -$8,407,105 $7.62 164
2019 Q2 91,625,087 $679,706,872 +$8,052,678 $7.42 159
2019 Q1 91,020,856 $833,733,112 -$2,282,996 $9.16 177
2018 Q4 91,617,280 $629,322,769 +$733,426 $6.87 165
2018 Q3 90,673,928 $938,295,198 +$6,636,946 $10.35 175
2018 Q2 89,987,003 $976,151,280 +$29,275,645 $10.85 178
2018 Q1 87,868,470 $711,728,487 -$15,526,677 $8.10 177
2017 Q4 89,907,208 $773,208,823 -$9,537,751 $8.60 166
2017 Q3 90,805,608 $907,884,120 +$14,505,428 $10.00 168
2017 Q2 89,862,408 $660,481,627 +$8,256,924 $7.35 164
2017 Q1 89,794,248 $727,302,583 +$120,776,508 $8.10 165
2016 Q4 86,880,160 $651,599,786 +$31,612,767 $7.50 168
2016 Q3 82,498,871 $606,746,033 -$12,034,548 $7.36 155
2016 Q2 84,467,843 $489,145,754 +$8,326,944 $5.79 153
2016 Q1 85,017,329 $367,297,813 -$17,678,837 $4.32 153
2015 Q4 87,227,415 $460,493,646 +$924,528 $5.28 164
2015 Q3 87,201,456 $446,570,654 -$377,372 $5.12 159
2015 Q2 84,720,140 $689,608,262 -$5,256,439 $8.13 158
2015 Q1 84,622,564 $770,875,425 -$23,260,654 $9.11 166
2014 Q4 87,055,645 $830,356,381 -$3,546,517 $9.54 160
2014 Q3 86,518,957 $1,076,283,400 +$1,325,759 $12.44 164
2014 Q2 86,380,715 $1,076,294,526 -$27,911,157 $12.46 159
2014 Q1 89,542,017 $1,025,228,310 +$8,257,061 $11.45 164