Company: EVLVW
Filing Date: 2025-04-30
Form Type: DEFA14A
Source: 0001628280-25-021095
Chunk: 0

Company: Evolv Technologies Holdings, Inc.
Filing Date: 2025-04-30
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, DC 20549

#### SCHEDULE 14A
<div align='center'>(Rule 14a-101)</div>

### INFORMATION REQUIRED IN PROXY STATEMENT

#### SCHEDULE 14A INFORMATION
<div align='center'>Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No. )</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                                           |

| Evolv Technologies Holdings, Inc.                |
| (Name of Registrant as Specified in its Charter) |

| (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant) |

Payment of Filing Fee (Check the appropriate box):

| 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. |

Your Vote Counts! EVOLV TECHNOLOGIES HOLDINGS, INC. 500 TOTTEN POND ROAD, 4TH FLOOR WALTHAM, MA 02451 EVOLV TECHNOLOGIES HOLDINGS, INC. 2025 Annual Meeting Vote by June 19, 2025 11:59 PM ET You invested in EVOLV TECHNOLOGIES HOLDINGS, INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on June 20, 2025. Vote Virtually at the Meeting* June 20, 2025 10:00 AM Eastern Time Virtually at: www.virtualshareholdermeeting.com/EVLV2025 *Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control