Company: TXG
Filing Date: 2025-04-15
Form Type: DEFA14A
Source: 0001770787-25-000020
Chunk: 0

Company: 10x Genomics, Inc.
Filing Date: 2025-04-15
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549
#### ______________________

#### SCHEDULE 14A

#### Proxy Statement Pursuant to Section 14(a) of the

#### Securities Exchange Act of 1934
#### ______________________

| 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 Pursuant to §240.14a-12                                     |

#### 10x Genomics, Inc.
<div align='center'>(Name of Registrant as Specified In Its Charter)</div>

| 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) and 0-11 |