| 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 | 21 Nov 2025 | 0001269797 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NNI | Class A Common Stock | Gift | $0 | -35,000 | -2.5% | $0.000000 | 1,382,982 | 19 Nov 2025 | Direct | F1 |
| holding | NNI | Class B Common Stock | 575,114 | 19 Nov 2025 | Direct | ||||||
| holding | NNI | Class B Common Stock | 545,289 | 19 Nov 2025 | By spouse | F2 | |||||
| holding | NNI | Class B Common Stock | 302,040 | 19 Nov 2025 | By GRAT | F3 | |||||
| holding | NNI | Class B Common Stock | 452,669 | 19 Nov 2025 | By GRAT | F4 | |||||
| holding | NNI | Class B Common Stock | 266,092 | 19 Nov 2025 | By GRAT | F5 | |||||
| holding | NNI | Class B Common Stock | 351,259 | 19 Nov 2025 | By GRAT | F6 | |||||
| holding | NNI | Class A Common Stock | 46 | 19 Nov 2025 | By trust | F7 | |||||
| holding | NNI | Class B Common Stock | 173,182 | 19 Nov 2025 | By trust | F7 | |||||
| holding | NNI | Class A Common Stock | 45 | 19 Nov 2025 | By trust | F8 | |||||
| holding | NNI | Class B Common Stock | 173,183 | 19 Nov 2025 | By trust | F8 | |||||
| holding | NNI | Class A Common Stock | 45 | 19 Nov 2025 | By trust | F9 | |||||
| holding | NNI | Class B Common Stock | 173,183 | 19 Nov 2025 | By trust | F9 | |||||
| holding | NNI | Class B Common Stock | 16,119 | 19 Nov 2025 | By trust | F10 | |||||
| holding | NNI | Class B Common Stock | 24,179 | 19 Nov 2025 | By trust | F11 | |||||
| holding | NNI | Class B Common Stock | 24,178 | 19 Nov 2025 | By trust | F12 | |||||
| holding | NNI | Class B Common Stock | 21,417 | 19 Nov 2025 | By GRAT | F13 | |||||
| holding | NNI | Class B Common Stock | 24,570 | 19 Nov 2025 | By GRAT | F14 | |||||
| holding | NNI | Class B Common Stock | 23,864 | 19 Nov 2025 | By GRAT | F15 | |||||
| holding | NNI | Class B Common Stock | 27,294 | 19 Nov 2025 | By GRAT | F16 | |||||
| holding | NNI | Class B Common Stock | 31,204 | 19 Nov 2025 | By GRAT | F17 | |||||
| holding | NNI | Class B Common Stock | 36,021 | 19 Nov 2025 | By GRAT | F18 | |||||
| holding | NNI | Class B Common Stock | 34,732 | 19 Nov 2025 | By GRAT | F19 | |||||
| holding | NNI | Class B Common Stock | 39,720 | 19 Nov 2025 | By GRAT | F20 | |||||
| holding | NNI | Class B Common Stock | 432,774 | 19 Nov 2025 | By GRAT | F21 | |||||
| holding | NNI | Class B Common Stock | 353,254 | 19 Nov 2025 | By GRAT | F22 | |||||
| holding | NNI | Class B Common Stock | 1,600,000 | 19 Nov 2025 | By Dunlap Holdings, LLC | F23 | |||||
| holding | NNI | Class B Common Stock | 125,000 | 19 Nov 2025 | By Dynasty Trust | F24 | |||||
| holding | NNI | Class B Common Stock | 125,000 | 19 Nov 2025 | By Dynasty Trust | F25 | |||||
| holding | NNI | Class B Common Stock | 125,000 | 19 Nov 2025 | By Dynasty Trust | F26 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | This gift to a charitable organization as described in Section 501(c)(3) of the Internal Revenue Code was effected pursuant to a Rule 10b5-1 plan that was entered into by the reporting person on August 19, 2025. |
| F2 | Includes shares distributed to the reporting person's spouse by grantor retained annuity trusts as discussed in footnotes (3) through (6) below. |
| F3 | Shares held by a Grantor Retained Annuity Trust dated October 13, 2015, which reflect an annuity distribution from the trust to the reporting person's spouse of 28,231 shares on October 16, 2025. 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 Grantor Retained Annuity Trust dated October 13, 2015, which reflect an annuity distribution from the trust to the reporting person's spouse of 8,527 shares on October 16, 2025. 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 | Shares held by a separate Grantor Retained Annuity Trust dated October 13, 2015, which reflect an annuity distribution from the trust to the reporting person's spouse of 12,929 shares on October 16, 2025. 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. |
| F6 | Shares held by a separate Grantor Retained Annuity Trust dated October 13, 2015, which reflect an annuity distribution from the trust to the reporting person's spouse of 7,799 shares on October 16, 2025. 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 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. |
| F8 | 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. |
| F9 | 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. |
| F10 | 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. |
| F11 | 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. |
| F12 | 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. |
| F13 | 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. |
| F14 | 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. |
| F15 | 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. |
| F16 | 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. |
| F17 | 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. |
| F18 | 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. |
| F19 | 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. |
| F20 | 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. |
| F21 | Shares held by a Michael S. Dunlap Grantor Retained Annuity Trust dated December 19, 2011. 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 Michael S. Dunlap Grantor Retained Annuity Trust dated December 19, 2011. 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 Dunlap Holdings, LLC, a family limited liability company which is controlled by the reporting person and his family. The reporting person continues to report beneficial ownership of all the shares held by Dunlap Holdings, LLC, but disclaims beneficial ownership of the shares held by Dunlap Holdings, LLC except to the extent of his pecuniary interest therein. |
| F24 | Shares held by a Dynasty Trust established by the reporting person in 2011, of which an adult son of the reporting person is the initial 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. |
| F25 | Shares held by a separate Dynasty Trust established by the reporting person in 2011, of which an adult son of the reporting person is the initial 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. |
| F26 | Shares held by a separate Dynasty Trust established by the reporting person in 2011, of which an adult son of the reporting person is the initial 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. |
One of two Form 4s filed on November 21, 2025 for the reporting of the November 19, 2025 gift of shares 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. Exhibit List: Exhibit 24 - Power of Attorney