NATIONAL RESH CORP NRC
COM NEW · Common Stock · CUSIP 637372202 · ISIN US6373722023
US healthcare consumer data mining company
- SectorHealth care
- IndustryServices-Commercial Physical & Biological Research
- HeadquartersLincoln, NE
- Founded1981
- Websitenrchealth.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($44.7k this quarter). Holder counts are more reliable. Shares outstanding: 22.1m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $21.57. Options: 1 managers hold calls ($10.8k notional), 1 hold puts ($351.6k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 111 |
| Q4 2022 | 117 |
| Q1 2023 | 127 |
| Q2 2023 | 117 |
| Q3 2023 | 122 |
| Q4 2023 | 133 |
| Q1 2024 | 143 |
| Q2 2024 | 137 |
| Q3 2024 | 139 |
| Q4 2024 | 134 |
| Q1 2025 | 124 |
| Q2 2025 | 127 |
| Q3 2025 | 119 |
| Q4 2025 | 117 |
| Q1 2026 | 121 |
| Q2 2026 | 124 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 72 | 59 |
| Q4 2024 | 70 | 63 |
| Q1 2025 | 48 | 73 |
| Q2 2025 | 66 | 61 |
| Q3 2025 | 48 | 59 |
| Q4 2025 | 39 | 79 |
| Q1 2026 | 41 | 67 |
| Q2 2026 | 60 | 51 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $8.0k | $1.0k | 0.12 |
| Q4 2025 | $1.0m | $3.8k | 0.00 |
| Q1 2026 | $708.1k | $468.6k | 0.66 |
| Q2 2026 | $10.8k | $351.6k | 32.60 |
Biggest buyers
| FARMERS & MERCHANTS INVESTMENTS INC | Added | +330.5k |
| Willis Investment Counsel | Added | +210.1k |
| BlackRock, Inc. | Added | +85.5k |
| CITADEL ADVISORS LLC | New | +64.1k |
| HEARTLAND ADVISORS INC | Added | +62.9k |
| WELLS FARGO & COMPANY/MN | Added | +62.7k |
| Linden Thomas Advisory Services, LLC | Added | +50.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +46.4k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +26.2k |
| MARSHALL WACE, LLP | New | +23.3k |
Biggest sellers
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Reduced | -605.9k |
| MORGAN STANLEY | Reduced | -142.6k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | Sold out | -101.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Reduced | -98.9k |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -49.6k |
| BANK OF AMERICA CORP /DE/ | Reduced | -29.5k |
| Northwest & Ethical Investments L.P. | Reduced | -26.8k |
| AMERIPRISE FINANCIAL INC | Reduced | -24.8k |
| SEI INVESTMENTS CO | Reduced | -19.3k |
| Dynamic Technology Lab Private Ltd | Sold out | -18.6k |
Biggest calls
| SIMPLEX TRADING, LLC | Reduced | $10.8k500 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $351.6k16.3k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Common Property Trust
13D · may seek influence
-0.8 pts · filed 2026-06-12
Stated purposeItem 4 is hereby amended by changing the words "Chief Executive Officer" to "Chairman" in the first sentence thereof. Full filing |
45.7% |
Fell to 5% or below in the last year: KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC (9.0%, 2026-08-13)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 1 | $10.0k | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 1 | $98.2k | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.14% of their portfolio | 2.0m $43.8m | Reduced -605.9k |
| BlackRock, Inc. 0.00% of their portfolio | 1.1m $22.9m | Added +85.5k |
| MORGAN STANLEY 0.00% of their portfolio | 859.3k $18.5m | Reduced -142.6k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 666.6k $14.4m | Added +3.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 491.2k $10.6m | Added +1.5k |
| Willis Investment Counsel 0.45% of their portfolio | 434.8k $9.4m | Added +210.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 420.1k $9.1m | Added +26.2k |
| QV Investors Inc. 0.62% of their portfolio | 372.5k $8.0m | Reduced -8.8k |
| FARMERS & MERCHANTS INVESTMENTS INC 0.17% of their portfolio | 330.6k $7.1m | Added +330.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 325.4k $7.0m | Reduced -15.4k |
| HEARTLAND ADVISORS INC 0.29% of their portfolio | 300.0k $6.5m | Added +62.9k |
| STATE STREET CORP 0.00% of their portfolio | 298.4k $6.5m | Reduced -2.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 252.2k $5.4m | Added +1.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 238.2k $5.1m | Reduced -17.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 187.9k $4.1m | Reduced -98.9k |
| iA Global Asset Management Inc. 0.05% of their portfolio | 187.5k $4.0m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 179.6k $3.9m | Added +62.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 122.2k $2.6m | Reduced -49.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 113.3k $2.4m | Added +938 |
| Northwest & Ethical Investments L.P. 0.05% of their portfolio | 102.4k $2.2m | Reduced -26.8k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 97.2k $2.1m | Added +4.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 96.8k $2.1m | Added +14.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 87.4k $1.9m | Added +16.9k |
| FIFTH THIRD BANCORP 0.00% of their portfolio | 85.4k $1.8m | Reduced -4.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 82.9k $1.8m | Reduced -29.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 81.7k $1.8m | Added +11.1k |
| Linden Thomas Advisory Services, LLC 0.14% of their portfolio | 77.9k $1.7m | Added +50.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 77.7k $1.7m | Added +46.4k |
| Quantinno Capital Management LP 0.00% of their portfolio | 73.2k $1.6m | Added +10.8k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 64.1k $1.4m | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 62.9k $1.4m | Reduced -872 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 62.8k $1.4m | Added +15.7k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 47.7k $1.0m | Reduced -19.3k |
| BESSEMER GROUP INC 0.00% of their portfolio | 47.1k $1.0m | Unchanged |
| ALPS ADVISORS INC 0.00% of their portfolio | 47.1k $1.0m | Added +10.3k |
| Williams Jones Wealth Management, LLC. 0.01% of their portfolio | 41.8k $901.6k | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 38.6k $831.8k | Added +97 |
| Squarepoint Ops LLC 0.00% of their portfolio | 37.0k $798.1k | Reduced -10.4k |
| US BANCORP \DE\ 0.00% of their portfolio | 33.2k $715.2k | Added +483 |
| Nuveen, LLC 0.00% of their portfolio | 30.3k $654.0k | Added +2.8k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 29.5k $634.8k | Added +19.1k |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 29.2k $629.2k | Added +9.3k |
| Creative Planning 0.00% of their portfolio | 29.0k $624.5k | Added +4.5k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 23.3k $502.2k | New |
| Empirical Finance, LLC 0.02% of their portfolio | 20.0k $431.4k | New |
| Invesco Ltd. 0.00% of their portfolio | 19.9k $429.8k | Reduced -1.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 18.9k $321.0k | Added +2.7k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 18.1k $389.3k | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 17.0k $366.9k | Reduced -24.8k |
| EXCHANGE TRADED CONCEPTS, LLC 0.00% of their portfolio | 14.7k $317.0k | Added +1.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 14.6k $315.3k | Reduced -818 |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 14.4k $310.8k | Added +2.2k |
| XTX Topco Ltd 0.00% of their portfolio | 14.2k $306.5k | Reduced -5.7k |
| PCM Encore, LLC 0.05% of their portfolio | 13.4k $289.8k | Unchanged |
| Empowered Funds, LLC 0.00% of their portfolio | 13.2k $284.7k | Reduced -84 |
| MANGROVE PARTNERS IM, LLC 0.02% of their portfolio | 13.2k $284.6k | Reduced -9.5k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 13.1k $282.7k | Reduced -2.1k |
| R Squared Ltd 0.14% of their portfolio | 12.3k $265.1k | New |
| Graham Capital Management, L.P. 0.01% of their portfolio | 11.8k $253.8k | Reduced -128 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 11.7k $252.4k | Added +1.7k |
| Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio | 11.5k $248.7k | Reduced -1.0k |
| Vident Advisory, LLC 0.00% of their portfolio | 10.7k $230.9k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 9.7k $210.0k | New |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 9.4k $202.3k | New |
| Aquatic Capital Management LLC 0.01% of their portfolio | 8.7k $187.8k | New |
| UBS Group AG 0.00% of their portfolio | 8.1k $174.7k | Reduced -15.6k |
| BARCLAYS PLC 0.00% of their portfolio | 8.0k $171.9k | Reduced -747 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 6.7k $143.9k | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 6.0k $130.2k | Reduced -190 |
| CITIGROUP INC 0.00% of their portfolio | 5.6k $120.3k | Added +4.9k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 5.4k $117.5k | Reduced -204 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 5.2k $113.0k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 4.6k $99.0k | Added +507 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 4.4k $95.4k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 4.1k $88.4k | Added +1.5k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 4.1k $88.1k | Added +2.4k |
| Copeland Capital Management, LLC 0.00% of their portfolio | 3.6k $78.0k | Reduced -118 |
| Aviso Financial Inc. 0.00% of their portfolio | 3.6k $77.3k | Added +190 |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 3.0k $64.9k | Unchanged |
| MEEDER ASSET MANAGEMENT INC 0.00% of their portfolio | 2.9k $62.2k | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 2.9k $62.0k | Added +77 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 2.5k $53.6k | Added +2.3k |
| FMR LLC 0.00% of their portfolio | 2.5k $53.0k | Reduced -3 |
| Arax Advisory Partners 0.00% of their portfolio | 2.2k $48.4k | Added +2.2k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.4k $30.1k | Added +101 |
| HUNTINGTON NATIONAL BANK 0.00% of their portfolio | 1.3k $28.6k | Reduced -281 |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 1.3k $27.0k | Unchanged |
| Legal & General Group Plc 0.00% of their portfolio | 1.2k $25.8k | Added +243 |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 1.2k $25.2k | Reduced -3 |
| Basecamp Wealth Advisors LLC 0.00% of their portfolio | 1.1k $24.5k | Unchanged |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 1.1k $23.2k | Reduced -1 |
| GAMMA Investing LLC 0.00% of their portfolio | 1.1k $23.1k | Added +259 |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 1.0k $22.0k | New |
| WealthCollab, LLC 0.01% of their portfolio | 987 $21.3k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 982 $21.2k | Unchanged |
| SIGNATUREFD, LLC 0.00% of their portfolio | 957 $20.6k | Reduced -453 |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 839 $18.1k | New |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 564 $12.2k | Unchanged |
| IFP Advisors, Inc 0.00% of their portfolio | 418 $9.0k | Reduced -12 |
| Parallel Advisors, LLC 0.00% of their portfolio | 395 $8.5k | Unchanged |