Latest Period
Q2 2026
Security Snapshot
NPK International Inc. - Common Stock (NPKI) Institutional Ownership
CUSIP: 651718504
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
253
Shares (Excl. Options)
77,966,692
Price
$15.91
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- Security type / class
- Equity / Common Stock
- Symbol
- NPKI on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 77,966,692
- Total 13F value
- $1,240,139,714
- Portfolio coverage rank
- 0%
- Share change
- +2,268,027
- Value change
- +$37,911,922
- Number of holders
- 253
- Shares outstanding
- 84,542,894
- SEC-reported price per share
- $14.01
- Insider filing price
- $14.01
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- NPKI - NPK International Inc. - Common Stock is tracked under CUSIP 651718504.
- 253 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 245 to 253 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,100,610,715 to $1,240,139,714.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 253 institutions filings for Q2 2026.
Security key
651718504
Latest holder period
Q2 2026
13F holders
253
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
NPKI full holder history
NPK International Inc. SEC filings
NPK International Inc. company facts
NPK International Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 651718504:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
NPKI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.4% | $113,077,270 | 7,107,308 | BlackRock, Inc. | 30 Jun 2026 | |||
| AMERIPRISE FINANCIAL INC | 6.2% | -19% | $59,350,774 | -$16,389,988 | 5,247,637 | -22% | Ameriprise Financial, Inc. | 30 Sep 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5% | $67,388,380 | 4,235,599 | Vanguard Capital Management | 30 Jun 2026 | |||
| DIMENSIONAL FUND ADVISORS LP | 4.7% | -17% | $57,444,348 | -$11,734,996 | 3,983,658 | -17% | Dimensional Fund Advisors LP | 31 Mar 2026 |
As of 30 Jun 2026, 253 institutional investors reported holding 77,966,692 shares of NPK International Inc. - Common Stock (NPKI). This represents 92% of the company’s total 84,542,894 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
61%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.4% | 7,940,503 | +10% | 0% | $126,333,410 |
| AMERIPRISE FINANCIAL INC | 5.3% | 4,486,433 | -20% | 0.01% | $71,379,145 |
| DIMENSIONAL FUND ADVISORS LP | 4.3% | 3,641,547 | -8.6% | 0.01% | $57,936,958 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3% | 3,604,823 | +5.3% | 0% | $57,352,734 |
| AMERICAN CENTURY COMPANIES INC | 3.7% | 3,128,652 | +2.8% | 0.02% | $49,776,853 |
| WASATCH ADVISORS LP | 3.3% | 2,811,593 | -3% | 0.29% | $44,732,445 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8% | 2,369,714 | +5.6% | 0% | $37,708,817 |
| ROYCE & ASSOCIATES LP | 2.5% | 2,149,100 | +3.8% | 0.28% | $34,192,181 |
| STATE STREET CORP | 2.4% | 2,014,703 | +3% | 0% | $32,053,925 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 2.1% | 1,738,857 | -4.4% | 1.4% | $27,665,221 |
| EMERALD ADVISERS, LLC | 1.9% | 1,573,597 | 0.59% | $25,035,928 | |
| Thrivent Financial for Lutherans | 1.8% | 1,513,362 | -9.1% | 0.04% | $24,078,000 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.7% | 1,452,984 | 0.01% | $23,116,975 | |
| Russell Investments Group, Ltd. | 1.7% | 1,395,934 | -19% | 0.02% | $22,209,315 |
| MORGAN STANLEY | 1.5% | 1,259,432 | -31% | 0% | $20,037,577 |
| Electron Capital Partners, LLC | 1.4% | 1,169,304 | +6.3% | 0.74% | $18,603,627 |
| LOOMIS SAYLES & CO L P | 1.4% | 1,150,634 | -2.3% | 0.02% | $18,306,586 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3% | 1,134,552 | -26% | 0.01% | $18,050,722 |
| PRUDENTIAL FINANCIAL INC | 1.3% | 1,116,379 | -34% | 0.02% | $17,761,590 |
| Qube Research & Technologies Ltd | 1.3% | 1,098,020 | -3.7% | 0.02% | $17,469,498 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 1.3% | 1,074,368 | 0.6% | $17,093,195 | |
| MILLENNIUM MANAGEMENT LLC | 1.2% | 1,049,928 | +561% | 0.01% | $16,704,354 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2% | 1,028,113 | -6.2% | 0% | $16,357,278 |
| Invesco Ltd. | 1.2% | 1,000,547 | +273% | 0% | $15,918,702 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.2% | 978,659 | +14% | 0% | $15,570,465 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 77,966,692 | $1,240,139,714 | +$37,911,922 | $15.91 | 253 |
| 2026 Q1 | 76,012,736 | $1,100,610,715 | +$16,824,497 | $14.49 | 245 |
| 2025 Q4 | 75,173,563 | $896,110,950 | +$18,563,375 | $11.92 | 241 |
| 2025 Q3 | 73,990,159 | $836,859,066 | -$11,221,581 | $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 |