Company: NE-WTA
Filing Date: 2025-03-27
Form Type: DEFA14A
Source: 0001628280-25-015027
Chunk: 0

Company: Noble Corp plc
Filing Date: 2025-03-27
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
<div align='center'>Washington, D.C. 20549

_____________________

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

_____________________</div>

Filed by the Registrant x

Filed by a Party other than the Registrant o

Check the appropriate box:

| o |     | Preliminary Proxy Statement                                                     |
| o |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| o |     | Definitive Proxy Statement                                                      |
| x |     | Definitive Additional Materials                                                 |
| o |     | Soliciting Material under § 240.14a-12                                          |

<div align='center'>Noble Corporation plc

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</div>

Payment of Filing Fee (Check all boxes that apply):

| x |     | No fee required                                                                                     |
| o |     | Fee paid previously with preliminary materials                                                      |
| o |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |