NPK International Inc. 13F holders
256 funds reported a position in NPK International Inc. in their 13F for the quarter ended 30 June 2026, together 78.8 million shares worth $1.25 billion. Against the quarter before, 35 opened a position, 98 added, 83 trimmed and 26 sold out; together they bought a net 1.7 million shares. The largest holders: BlackRock, Inc., Ameriprise Financial Inc. and Dimensional Fund Advisors LP.
Funds holding256+10 on Q1 2026
Shares they held78.8Mworth $1.25 billion
Net bought on the quarter1.7M sharesabout $26.5 million at the funds' values
Funds buying to selling133 to 109opened or added, to cut or sold
Opened 35Added 98Held 38Trimmed 83Sold out 26
What each fund did in NPKI against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in NPKI in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 37 reported a position in NPK International Inc.: 3 opened one, 10 added, 14 trimmed and 5 sold out, a net 69,708 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 8 reported a position in NPK International Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 2.4 million shares worth $37.7 million, 0.0% of its reported book. In the quarter, 4 funds added or opened a position and 3 trimmed or sold out; together they bought a net 462,309 shares, about $7.4 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 2,369,714 | $37.7 million | 0.0% | +125,550 | added | 30 June 2026 | 13F |
| Millennium Management | 1,049,928 | $16.7 million | 0.0% | +891,036 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 559,499 | $8.9 million | 0.0% | -501,405 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 363,503 | $5.8 million | 0.0% | +303,814 | added | 30 June 2026 | 13F |
| Norges Bank | 323,100 | $5.1 million | 0.0% | held | 30 June 2026 | 13F | |
| Renaissance Technologies | 225,367 | $3.6 million | 0.0% | -136,800 | trimmed | 30 June 2026 | 13F |
| Point72 Asset Management | 60,425 | $961,362 | 0.0% | -243,758 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 37,981 | $604,281 | 0.0% | +23,872 | added | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7,940,503 | 10.08% | $126.3 million | 0.00% | +737,798 | 13F |
| Ameriprise Financial Inc. | 4,486,433 | 5.69% | $71.4 million | 0.01% | -1,137,119 | 13F |
| Dimensional Fund Advisors LP | 3,641,547 | 4.62% | $57.9 million | 0.01% | -342,111 | 13F |
| Vanguard Capital Management LLC | 3,604,823 | 4.58% | $57.4 million | 0.00% | +179,881 | 13F |
| American Century Companies Inc. | 3,128,652 | 3.97% | $49.8 million | 0.02% | +84,889 | 13F |
| Wasatch Advisors LP | 2,811,593 | 3.57% | $44.7 million | 0.29% | -87,428 | 13F |
| Geode Capital Management, LLC | 2,369,714 | 3.01% | $37.7 million | 0.00% | +125,550 | 13F |
| Royce & Associates LP | 2,149,100 | 2.73% | $34.2 million | 0.28% | +78,090 | 13F |
| State Street Corp. | 2,014,703 | 2.56% | $32.1 million | 0.00% | +59,384 | 13F |
| Punch & Associates Investment Management, Inc. | 1,738,857 | 2.21% | $27.7 million | 1.37% | -79,933 | 13F |
| Emerald Advisers, LLC | 1,573,597 | 2.00% | $25.0 million | 0.59% | new | 13F |
| Thrivent Financial for Lutherans | 1,513,362 | 1.92% | $24.1 million | 0.04% | -152,261 | 13F |
| Massachusetts Financial Services Co. | 1,452,984 | 1.84% | $23.1 million | 0.01% | new | 13F |
| First Eagle Investment Management, LLC | 1,442,004 | 1.83% | $22.9 million | 0.02% | 13F | |
| Russell Investments Group, Ltd. | 1,395,934 | 1.77% | $22.2 million | 0.02% | -330,309 | 13F |
| Morgan Stanley | 1,259,432 | 1.60% | $20.0 million | 0.00% | -563,628 | 13F |
| Electron Capital Partners, LLC | 1,169,304 | 1.48% | $18.6 million | 0.74% | +69,361 | 13F |
| Loomis Sayles & Co. L P | 1,150,634 | 1.46% | $18.3 million | 0.02% | -27,359 | 13F |
| Arrowstreet Capital, Limited Partnership | 1,134,552 | 1.44% | $18.1 million | 0.01% | -404,536 | 13F |
| Prudential Financial Inc. | 1,116,379 | 1.42% | $17.8 million | 0.02% | -570,250 | 13F |
| Qube Research & Technologies Ltd | 1,098,020 | 1.39% | $17.5 million | 0.02% | -42,565 | 13F |
| Emerald Mutual Fund Advisers Trust | 1,074,368 | 1.36% | $17.1 million | 0.60% | new | 13F |
| Millennium Management LLC | 1,049,928 | 1.33% | $16.7 million | 0.01% | +891,036 | 13F |
| Charles Schwab Investment Management Inc. | 1,028,113 | 1.30% | $16.4 million | 0.00% | -67,488 | 13F |
| Invesco Ltd. | 1,000,547 | 1.27% | $15.9 million | 0.00% | +732,096 | 13F |
| Vanguard Portfolio Management LLC | 978,659 | 1.24% | $15.6 million | 0.00% | +117,192 | 13F |
| Nuveen, LLC | 919,147 | 1.17% | $14.6 million | 0.00% | -153,918 | 13F |
| Tieton Capital Management, LLC | 820,845 | 1.04% | $13.1 million | 3.75% | -15,075 | 13F |
| Panagora Asset Management Inc. | 800,956 | 1.02% | $12.7 million | 0.04% | +123,404 | 13F |
| Northern Trust Corp. | 795,342 | 1.01% | $12.7 million | 0.00% | -173,159 | 13F |
| Wellington Management Group LLP | 790,335 | 1.00% | $12.6 million | 0.00% | +525,718 | 13F |
| Axiom Investors LLC | 695,540 | 0.88% | $11.1 million | 0.10% | -41,785 | 13F |
| Ancora Advisors LLC | 678,760 | 0.86% | $10.8 million | 0.21% | -48,590 | 13F |
| Asset Management One Co., Ltd. | 659,414 | 0.84% | $10.5 million | 0.03% | +153,894 | 13F |
| Allianz Asset Management GmbH | 614,147 | 0.78% | $9.8 million | 0.01% | -542,383 | 13F |
| Goldman Sachs Group Inc. | 601,060 | 0.76% | $9.6 million | 0.00% | -410,629 | 13F |
| First Sabrepoint Capital Management LP | 600,000 | 0.76% | $9.5 million | 4.08% | +50,000 | 13F |
| Vanguard Fiduciary Trust Co. | 597,805 | 0.76% | $9.5 million | 0.00% | +61,802 | 13F |
| Oberweis Asset Management Inc. | 587,550 | 0.75% | $9.3 million | 0.19% | +69,400 | 13F |
| Silvercrest Asset Management Group LLC | 577,718 | 0.73% | $9.2 million | 0.06% | -27,551 | 13F |
| Two Sigma Investments, LP | 559,499 | 0.71% | $8.9 million | 0.01% | -501,405 | 13F |
| Uniplan Investment Counsel, Inc. | 544,278 | 0.69% | $8.7 million | 0.81% | +16,594 | 13F |
| First Trust Advisors LP | 538,191 | 0.68% | $8.6 million | 0.01% | new | 13F |
| Rice Hall James & Associates, LLC | 491,243 | 0.62% | $7.8 million | 0.38% | -53,834 | 13F |
| Sei Investments Co. | 418,914 | 0.53% | $6.7 million | 0.01% | -418,243 | 13F |
| ArrowMark Colorado Holdings LLC | 400,141 | 0.51% | $6.4 million | 0.27% | -166,254 | 13F |
| Citadel Advisors LLC | 363,503 | 0.46% | $5.8 million | 0.00% | +303,814 | 13F |
| Cannell Capital LLC | 359,882 | 0.46% | $5.7 million | 4.00% | -294,807 | 13F |
| Marathon Capital Management | 343,930 | 0.44% | $5.5 million | 1.11% | -2,180 | 13F |
| Marshall Wace, LLP | 335,734 | 0.43% | $5.3 million | 0.01% | +281,617 | 13F |
The 50 largest of the 256 funds that reported a position in NPKI in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on NPKI
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 12,300 | $195,693 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 31 July 2026 | 13G | Vanguard Capital Management and 1 other | 4.2 million | 5.0% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 July 2026 | 13G/A | BlackRock, Inc. and 1 other | 7.1 million | 8.4% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 9 April 2026 | 13G/A | Dimensional Fund Advisors LP and 1 other | 4.0 million | 4.7% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G/A | Ameriprise Financial, Inc. and 15 others | 5.2 million | 6.2% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.