| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| DUNLAP MICHAEL S | Executive Chairman of Board, Director, 10%+ Owner | 121 SOUTH 13TH STREET, SUITE 100, LINCOLN | /s/ Nicole M. Stawniak, Attorney-in-Fact for Michael S. Dunlap | 2025-12-03 | 0001269797 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NNI | Class B Common Stock | Gift | $0 | -302K | -100% | $0.00 | 0 | Dec 1, 2025 | By GRAT | F1 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +67.1K | +144.88% | $0.00 | 113K | Dec 1, 2025 | By trust | F1, F2 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +101K | +149.29% | $0.00 | 168K | Dec 1, 2025 | By trust | F1, F3 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +101K | +149.29% | $0.00 | 168K | Dec 1, 2025 | By trust | F1, F4 |
| transaction | NNI | Class B Common Stock | Gift | $0 | -266K | -100% | $0.00 | 0 | Dec 1, 2025 | By GRAT | F5 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +59.1K | +132.07% | $0.00 | 104K | Dec 1, 2025 | By trust | F5, F6 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +88.7K | +136.07% | $0.00 | 154K | Dec 1, 2025 | By trust | F5, F7 |
| transaction | NNI | Class B Common Stock | Gift | $0 | +88.7K | +136.07% | $0.00 | 154K | Dec 1, 2025 | By trust | F5, F8 |
| holding | NNI | Class A Common Stock | 1.38M | Dec 1, 2025 | Direct | ||||||
| holding | NNI | Class B Common Stock | 575K | Dec 1, 2025 | Direct | ||||||
| holding | NNI | Class B Common Stock | 545K | Dec 1, 2025 | By spouse | ||||||
| holding | NNI | Class B Common Stock | 453K | Dec 1, 2025 | By GRAT | F9 | |||||
| holding | NNI | Class B Common Stock | 351K | Dec 1, 2025 | By GRAT | F10 | |||||
| holding | NNI | Class A Common Stock | 46 | Dec 1, 2025 | By trust | F11 | |||||
| holding | NNI | Class B Common Stock | 173K | Dec 1, 2025 | By trust | F11 | |||||
| holding | NNI | Class A Common Stock | 45 | Dec 1, 2025 | By trust | F12 | |||||
| holding | NNI | Class B Common Stock | 173K | Dec 1, 2025 | By trust | F12 | |||||
| holding | NNI | Class A Common Stock | 45 | Dec 1, 2025 | By trust | F13 | |||||
| holding | NNI | Class B Common Stock | 173K | Dec 1, 2025 | By trust | F13 | |||||
| holding | NNI | Class B Common Stock | 16.1K | Dec 1, 2025 | By trust | F14 | |||||
| holding | NNI | Class B Common Stock | 24.2K | Dec 1, 2025 | By trust | F15 | |||||
| holding | NNI | Class B Common Stock | 24.2K | Dec 1, 2025 | By trust | F16 | |||||
| holding | NNI | Class B Common Stock | 21.4K | Dec 1, 2025 | By GRAT | F17 | |||||
| holding | NNI | Class B Common Stock | 24.6K | Dec 1, 2025 | By GRAT | F18 | |||||
| holding | NNI | Class B Common Stock | 23.9K | Dec 1, 2025 | By GRAT | F19 | |||||
| holding | NNI | Class B Common Stock | 27.3K | Dec 1, 2025 | By GRAT | F20 | |||||
| holding | NNI | Class B Common Stock | 31.2K | Dec 1, 2025 | By GRAT | F21 | |||||
| holding | NNI | Class B Common Stock | 36K | Dec 1, 2025 | By GRAT | F22 | |||||
| holding | NNI | Class B Common Stock | 34.7K | Dec 1, 2025 | By GRAT | F23 | |||||
| holding | NNI | Class B Common Stock | 39.7K | Dec 1, 2025 | By GRAT | F24 |
| Id | Content |
|---|---|
| F1 | Represents the transfer of shares upon the termination of a Grantor Retained Annuity Trust dated October 13, 2015 pursuant to its terms. 268,480 shares of Class B Common Stock were transferred to the trusts described in footnotes (2) through (4) below. The remaining 33,560 shares of Class B Common Stock were transferred to an adult son of the reporting person. |
| F2 | Shares held by a 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F3 | Shares held by a separate 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F4 | Shares held by a separate 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F5 | Represents the transfer of shares upon the termination of a separate Grantor Retained Annuity Trust dated October 13, 2015 pursuant to its terms. 236,526 shares of Class B Common Stock were transferred to the trusts described in footnotes (6) through (8) below. The remaining 29,566 shares of Class B Common Stock were transferred to an adult son of the reporting person. |
| F6 | Shares held by a separate 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F7 | Shares held by a separate 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F8 | Shares held by a separate 2015 post annuity irrevocable trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F9 | Shares held by a separate Grantor Retained Annuity Trust dated October 13, 2015. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F10 | Shares held by a separate Grantor Retained Annuity Trust dated October 13, 2015. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F11 | Shares held by a Michael S. Dunlap 2023 Post Annuity Irrevocable Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F12 | Shares held by a separate Michael S. Dunlap 2023 Post Annuity Irrevocable Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F13 | Shares held by a separate Michael S. Dunlap 2023 Post Annuity Irrevocable Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F14 | Shares held by a 2020 Post-Annuity Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F15 | Shares held by a separate 2020 Post-Annuity Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F16 | Shares held by a separate 2020 Post-Annuity Trust, of which an adult son of the reporting person is the beneficiary. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F17 | Shares held by a Michael S. Dunlap Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F18 | Shares held by a separate Michael S. Dunlap Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F19 | Shares held by a separate Michael S. Dunlap Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F20 | Shares held by a separate Michael S. Dunlap Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F21 | Shares held by a Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F22 | Shares held by a separate Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F23 | Shares held by a separate Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
| F24 | Shares held by a separate Grantor Retained Annuity Trust dated May 12, 2020. The reporting person continues to report beneficial ownership of all the shares held by the trust, but disclaims beneficial ownership of the shares held by the trust except to the extent of his pecuniary interest therein. |
One of two Form 4s filed on December 3, 2025 for the reporting of the December 1, 2025 transfers included in this first Form 4. The second Form 4 includes additional holdings that could not be included in this first Form 4 due to a limitation on the number of line items that can be included per table in a single Form 4.