Institutional Ownership
Npk International Inc
CUSIP 651718504COM SHSNPKIQ1 2026
13D / 13G Filings
40
Schedule 13D/13G on record
Beneficial Filers
10
Distinct reporting persons
Largest Stake
15.8%
Max % of class reported
Institutional Holders
237
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
40 filings · latest Nov 14, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Nov 14, 2025 | Ameriprise Financial, Inc. | 13G/A | 6.2% | 5.25M | SEC |
| 2 | Oct 9, 2025 | Dimensional Fund Advisors LP | 13G/A | 5.7% | 4.80M | SEC |
| 3 | May 15, 2025 | Ameriprise Financial, Inc. | 13G/A | 7.7% | 6.70M | SEC |
| 4 | Nov 14, 2024 | Ameriprise Financial Inc | 13G/A | 8.9% | 7.66M | SEC |
| 5 | Feb 14, 2024 | Conversant Capital LLC | 13G/A | 5.2% | 4.46M | SEC |
| 6 | Feb 14, 2024 | Ameriprise Financial Inc | 13G/A | 7.5% | 6.41M | SEC |
| 7 | Feb 13, 2024 | Vanguard Group Inc | 13G | 5.6% | 4.76M | SEC |
| 8 | Feb 9, 2024 | Dimensional Fund Advisors LP | 13G | 7.2% | 6.15M | SEC |
| 9 | Feb 7, 2024 | Adage Capital Partners Gp, L.L.C. | 13G/A | 1.4% | 1.23M | SEC |
| 10 | Jan 26, 2024 | Blackrock Inc. | 13G/A | 7.3% | 6.25M | SEC |
30 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Npk International Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 7.20M | $104.37M |
| 2 | Ameriprise Financial Inc | 5.62M | $81.49M |
| 3 | Dimensional Fund Advisors LP | 3.98M | $57.72M |
| 4 | American Century Companies Inc | 3.04M | $44.10M |
| 5 | Wasatch Advisors LP | 2.90M | $42.01M |
| 6 | Geode Capital Management, LLC | 2.24M | $32.52M |
| 7 | Royce & Associates LP | 2.07M | $30.01M |
| 8 | State Street Corp | 1.96M | $28.33M |
| 9 | Morgan Stanley | 1.82M | $26.42M |
| 10 | Punch & Associates Investment Management, Inc. | 1.82M | $26.35M |