Security record
NPKI
NPK International Inc. · Basic Materials · Construction Materials
93Tracked holders
-1Δ holders
51.06MShares held
$809.91MReported value
+7New positions
−8Exits
Momentum inputs (comparable managers):
holder breadth -1.1% ·
share flow +1.0% ·
net new positions -1.1%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 93 | -1 | 51.06M | $809.91M | +7 | −8 |
| Q1 2026 | 97 | +6 | 50.65M | $733.19M | +8 | −2 |
| Q4 2025 | 91 | 0 | 49.35M | $588.29M | — | — |
| Q3 2025 | 19 | +1 | 22.13M | $250.25M | +1 | — |
| Q2 2025 | 15 | +1 | 18.80M | $160.00M | +1 | — |
| Q1 2025 | 11 | -1 | 7.32M | $42.53M | — | −1 |
| Q4 2024 | 12 | -3 | 6.57M | $50.39M | — | −3 |
| Q3 2024 | 14 | +1 | 5.44M | $37.72M | +1 | — |
| Q2 2024 | 13 | — | 6.23M | $51.78M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 7.94M | +10.2% | $126.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | Ameriprise Financial Inc | 4.49M | -20.2% | $71.38M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | Ameriprise Financial Inc | 4.49M | -20.2% | $71.38M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | Ameriprise Financial Inc | 4.49M | -20.2% | $71.38M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Dimensional Fund Advisors Lp | 3.64M | -8.6% | $57.94M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Dimensional Fund Advisors Lp | 3.64M | -8.6% | $57.94M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 22 | Dimensional Fund Advisors Lp | 3.64M | -8.6% | $57.94M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | Dimensional Fund Advisors Lp | 3.64M | -8.6% | $57.94M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | Dimensional Fund Advisors Lp | 3.64M | -8.6% | $57.94M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 25 | Vanguard Capital Management Llc | 3.60M | +5.2% | $57.35M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | American Century Companies Inc | 3.13M | +2.8% | $49.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 2.37M | +5.6% | $37.71M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 2.37M | +5.6% | $37.71M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 29 | State Street Global Advisors ✦ (passive) | 2.01M | +3.0% | $32.05M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 30 | Massachusetts Financial Services Co… | 1.45M | New | $23.12M | 0.0% | New | 1 | SEC ↗ |
| 31 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 32 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 33 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 34 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 35 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Russell Investments Group, Ltd. | 1.40M | -19.1% | $22.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 1.26M | -30.9% | $20.04M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 44 | Loomis Sayles & Co L P | 1.15M | -2.3% | $18.31M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Loomis Sayles & Co L P | 1.15M | -2.3% | $18.31M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | Arrowstreet Capital ✦ | 1.13M | -26.3% | $18.05M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 47 | Prudential Financial Inc | 1.12M | -33.8% | $17.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 48 | Prudential Financial Inc | 1.12M | -33.8% | $17.76M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Qube Research & Technologies Ltd | 1.10M | -3.7% | $17.47M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Allianz Asset Management GmbH | 1.16M | 0.0% | $16.76M | 0.0% | Held | 3 | SEC ↗ |
| 51 | Allianz Asset Management GmbH | 1.16M | 0.0% | $16.76M | 0.0% | Held | 3 | SEC ↗ |
| 52 | Allianz Asset Management GmbH | 1.16M | 0.0% | $16.76M | 0.0% | Held | 3 | SEC ↗ |
| 53 | Allianz Asset Management GmbH | 1.16M | 0.0% | $16.76M | 0.0% | Held | 3 | SEC ↗ |
| 54 | Millennium Management ✦ | 1.05M | +560.8% | $16.70M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 55 | Charles Schwab Investment… | 1.03M | -6.2% | $16.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Invesco Ltd. | 1.00M | +272.7% | $15.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Invesco Ltd. | 1.00M | +272.7% | $15.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | Invesco Ltd. | 1.00M | +272.7% | $15.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Invesco Ltd. | 1.00M | +272.7% | $15.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Invesco Ltd. | 1.00M | +272.7% | $15.92M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Nuveen, LLC | 919.15K | -14.3% | $14.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Nuveen, LLC | 919.15K | -14.3% | $14.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 63 | Nuveen, LLC | 919.15K | -14.3% | $14.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Northern Trust Corp | 795.34K | -17.9% | $12.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Northern Trust Corp | 795.34K | -17.9% | $12.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Northern Trust Corp | 795.34K | -17.9% | $12.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 67 | Northern Trust Corp | 795.34K | -17.9% | $12.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Northern Trust Corp | 795.34K | -17.9% | $12.65M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | Wellington Management ✦ | 790.34K | +198.7% | $12.57M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 70 | Wellington Management ✦ | 790.34K | +198.7% | $12.57M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 71 | Wellington Management ✦ | 790.34K | +198.7% | $12.57M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 72 | Asset Management One Co., Ltd. | 659.41K | +30.4% | $10.49M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Goldman Sachs Group ✦ | 601.06K | -40.6% | $9.56M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 74 | Goldman Sachs Group ✦ | 601.06K | -40.6% | $9.56M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 75 | Two Sigma Investments ✦ | 559.50K | -47.3% | $8.90M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 76 | First Trust Advisors Lp | 538.19K | New | $8.56M | 0.0% | New | 1 | SEC ↗ |
| 77 | Sei Investments Co | 418.91K | -50.0% | $6.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 78 | Sei Investments Co | 418.91K | -50.0% | $6.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 79 | Citadel Advisors ✦ | 363.50K | +509.0% | $5.78M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 80 | Marshall Wace ✦ | 335.73K | +520.4% | $5.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Marshall Wace ✦ | 335.73K | +520.4% | $5.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Marshall Wace ✦ | 335.73K | +520.4% | $5.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | D. E. Shaw & Co. ✦ | 327.61K | +237.6% | $5.21M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 84 | D. E. Shaw & Co. ✦ | 327.61K | +237.6% | $5.21M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 85 | Norges Bank ✦ (passive) | 323.10K | New | $5.14M | 0.0% | New | 1 | SEC ↗ |
| 86 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 87 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 88 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 89 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 90 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 91 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 92 | AQR Capital Management ✦ | 306.06K | +26.8% | $4.87M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 93 | Bank Of America Corp /De/ | 254.70K | +6.1% | $4.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Bank Of America Corp /De/ | 254.70K | +6.1% | $4.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | Bank of New York Mellon Corp | 242.57K | -8.9% | $3.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Bank of New York Mellon Corp | 242.57K | -8.9% | $3.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 97 | Bank of New York Mellon Corp | 242.57K | -8.9% | $3.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | Renaissance Technologies ✦ | 225.37K | -37.8% | $3.59M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 99 | Fisher Asset Management ✦ | 213.12K | -8.5% | $3.39M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 100 | Raymond James Financial Inc | 178.85K | -0.7% | $2.85M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Massachusetts Financial… | $23.12M | 0.0% |
| First Trust Advisors Lp | $8.56M | 0.0% |
| Norges Bank | $5.14M | 0.0% |
Exited
| Jane Street Group, Llc | $4.89M | was 0.0% |
| First Eagle Investment… | $3.97M | was 0.0% |
| Lazard Asset Management Llc | $2.30M | was 0.0% |
| Man Group plc | $1.81M | was 0.0% |
| Hrt Financial Lp | $467,000 | was 0.0% |
| Mariner, LLC | $261,040 | was 0.0% |
| Universal- Beteiligungs- und… | $200,700 | was 0.0% |
| Northwestern Mutual Wealth… | $696 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 245 holders, 75.81M shares, $1.05B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 17
Lewis Michael A
Director · 2.01K sh · $28,705
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 31
SC 13G — VANGUARD CAPITAL MANAGEMENT LLC
Jul 29
SC 13G/A — BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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