NPK International Inc.: which funds bought and sold
Institutions that bought and sold NPK International shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 133 institutions that filed 13F reports for both quarters added to or opened positions in NPK International, and 109 cut or closed them. Together they added a net 3.4M shares, +4.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 3.3M shares (+15.9%); index fund managers were net buyers of 1.0M shares (+5.6%). 35 opened a new position and 25 sold out entirely.
Bought, Q2 2026 133 institutions, 35 of them new holders Sold, Q2 2026 109 institutions, 25 of them sold out
Net change, all compared +3.4M shares (+4.4%)
Net change, active managers +3.3M shares (+15.9%), 28 bought, 28 sold
Buyers versus sellers
133 bought 33 109 sold
Active managers and hedge funds 28 bought · 28 sold · +3.3M
Index fund managers 7 bought · 4 sold · +1.0M
Other institutions 98 bought · 77 sold · −999K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Emerald Advisers, LLC | +1.6M New position | 1.6M | $25M |
| Massachusetts Financial Services Co Active manager | +1.5M New position | 1.5M | $23.1M |
| First Eagle Investment Management, LLC Active manager | +1.2M +426.6% | 1.4M | $22.9M |
| Emerald Mutual Fund Advisers Trust | +1.1M New position | 1.1M | $17.1M |
| Millennium Management LLC Hedge fund | +891K +560.8% | 1.0M | $16.7M |
| Blackrock, Inc. Index funds | +738K +10.2% | 7.9M | $126M |
| Invesco Ltd. | +732K +272.7% | 1.0M | $15.9M |
| First Trust Advisors LP | +538K New position | 538K | $8.6M |
| Wellington Management Group LLP Active manager | +526K +198.7% | 790K | $12.6M |
| Citadel Advisors LLC Hedge fund | +304K +509.0% | 364K | $5.8M |
| Marshall Wace, LLP Hedge fund | +282K +520.4% | 336K | $5.3M |
| Edgestream Partners, L.P. Hedge fund | +258K New position | 258K | $4.1M |
| D. E. Shaw & Co., Inc. Hedge fund | +231K +237.6% | 328K | $5.2M |
| Teacher Retirement System Of Texas | +218K New position | 218K | $3.5M |
| Vanguard Capital Management LLC Index funds | +180K +5.3% | 3.6M | $57.4M |
| Asset Management One Co., Ltd. | +154K +30.4% | 659K | $10.5M |
| Geode Capital Management, LLC Index funds | +126K +5.6% | 2.4M | $37.7M |
| Panagora Asset Management Inc Active manager | +123K +18.2% | 801K | $12.7M |
| Credit Agricole S A | +121K New position | 121K | $1.9M |
| Vanguard Portfolio Management LLC Index funds | +117K +13.6% | 979K | $15.6M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Massachusetts Financial Services Co Active manager | +1.5M New position | 1.5M | $23.1M |
| First Eagle Investment Management, LLC Active manager | +1.2M +426.6% | 1.4M | $22.9M |
| Millennium Management LLC Hedge fund | +891K +560.8% | 1.0M | $16.7M |
| Wellington Management Group LLP Active manager | +526K +198.7% | 790K | $12.6M |
| Citadel Advisors LLC Hedge fund | +304K +509.0% | 364K | $5.8M |
| Marshall Wace, LLP Hedge fund | +282K +520.4% | 336K | $5.3M |
| Edgestream Partners, L.P. Hedge fund | +258K New position | 258K | $4.1M |
| D. E. Shaw & Co., Inc. Hedge fund | +231K +237.6% | 328K | $5.2M |
| Panagora Asset Management Inc Active manager | +123K +18.2% | 801K | $12.7M |
| Trexquant Investment LP Hedge fund | +86K New position | 86K | $1.4M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Ameriprise Financial Inc | −1.1M −20.2% | 4.5M | $71.4M |
| Prudential Financial Inc | −570K −33.8% | 1.1M | $17.8M |
| Morgan Stanley | −564K −30.9% | 1.3M | $20M |
| Two Sigma Investments, LP Hedge fund | −501K −47.3% | 559K | $8.9M |
| Sei Investments Co | −418K −50.0% | 419K | $6.7M |
| Goldman Sachs Group Inc | −411K −40.6% | 601K | $9.6M |
| Arrowstreet Capital, Limited Partnership Hedge fund | −405K −26.3% | 1.1M | $18.1M |
| Dimensional Fund Advisors LP | −342K −8.6% | 3.6M | $57.9M |
| Jane Street Group, LLC | −338K Sold out | 0 | — |
| Russell Investments Group, Ltd. | −330K −19.1% | 1.4M | $22.2M |
| Cannell Capital LLC | −295K −45.0% | 360K | $5.7M |
| Roubaix Capital, LLC | −270K Sold out | 0 | — |
| Algert Global LLC Hedge fund | −248K −66.8% | 123K | $2M |
| Point72 Asset Management, L.P. Hedge fund | −244K −80.1% | 60K | $961,362 |
| Granahan Investment Management, LLC | −180K −44.9% | 221K | $3.5M |
| Northern Trust Corp Index funds | −173K −17.9% | 795K | $12.7M |
| Arrowmark Colorado Holdings LLC | −166K −29.4% | 400K | $6.4M |
| Lazard Asset Management LLC Active manager | −159K Sold out | 0 | — |
| Nuveen, LLC | −154K −14.3% | 919K | $14.6M |
| Thrivent Financial For Lutherans | −152K −9.1% | 1.5M | $24.1M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | −501K −47.3% | 559K | $8.9M |
| Arrowstreet Capital, Limited Partnership Hedge fund | −405K −26.3% | 1.1M | $18.1M |
| Algert Global LLC Hedge fund | −248K −66.8% | 123K | $2M |
| Point72 Asset Management, L.P. Hedge fund | −244K −80.1% | 60K | $961,362 |
| Lazard Asset Management LLC Active manager | −159K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −137K −37.8% | 225K | $3.6M |
| Man Group PLC Hedge fund | −125K Sold out | 0 | — |
| Calamos Advisors LLC Active manager | −123K −34.8% | 231K | $3.7M |
| Engineers Gate Manager LP Hedge fund | −122K −87.5% | 17K | $275,641 |
| Exoduspoint Capital Management, LP Hedge fund | −105K −77.2% | 31K | $493,608 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Emerald Advisers, LLC | 1.6M | $25M |
| Massachusetts Financial Services CoActive manager | 1.5M | $23.1M |
| Emerald Mutual Fund Advisers Trust | 1.1M | $17.1M |
| First Trust Advisors LP | 538K | $8.6M |
| Edgestream Partners, L.P.Hedge fund | 258K | $4.1M |
| Teacher Retirement System Of Texas | 218K | $3.5M |
| Credit Agricole S A | 121K | $1.9M |
| Conestoga Capital Advisors, LLC | 89K | $1.4M |
| Trexquant Investment LPHedge fund | 86K | $1.4M |
| Varcov Co. | 81K | $1.3M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Jane Street Group, LLC | 338K | $4.9M |
| Roubaix Capital, LLC | 270K | $3.9M |
| Lazard Asset Management LLCActive manager | 159K | $2.3M |
| Panoramic Capital, LLC | 128K | $1.9M |
| Man Group PLCHedge fund | 125K | $1.8M |
| Walleye Capital LLCHedge fund | 58K | $846,578 |
| Bridgeway Capital Management, LLCActive manager | 51K | $735,223 |
| Empowered Funds, LLC | 50K | $720,733 |
| HRT Financial LP | 32K | $467,000 |
| Fox Run Management, L.L.C. | 28K | $395,651 |
Who holds the shares
- Institutions reporting
- 253
- Ten largest holders
- 42.8% of 13F-reported shares
- Index fund managers
- 24.6% of 13F-reported shares
- Active managers and hedge funds
- 30.5% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 28 | 28 | 9 | 4 | +3.3M | +15.9% |
| Index fund managers | 7 | 4 | 0 | 0 | +1.0M | +5.6% |
| Other institutions | 98 | 77 | 26 | 21 | −999K | −2.8% |