Company: DHR
Filing Date: 2025-03-26
Form Type: DEFA14A
Source: 0000313616-25-000084
Chunk: 0

Company: DANAHER CORP /DE/
Filing Date: 2025-03-26
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
<div align='center'>Washington, DC 20549</div>

#### SCHEDULE 14A

#### PROXY STATEMENT PURSUANT TO SECTION 14(a)

#### OF THE SECURITIES EXCHANGE ACT OF 1934
<div align='center'>(Amendment No. )</div>

| ☑ |     | Filed by Registrant |     | ☐ |     | Filed by a Party other than the Registrant |

| Check the appropriate box: |     |                                                                                 |
| ☐                          |     | Preliminary Proxy Statement                                                     |
| ☐                          |     | Confidential, for Use of the Commission Only (as permitted by Rule 14A-6(E)(2)) |
| ☐                          |     | Definitive Proxy Statement                                                      |
| ☑                          |     | Definitive Additional Materials                                                 |
| ☐                          |     | Soliciting Material under §240.14a-12                                           |

### DANAHER CORPORATION
<div align='center'>(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): |     |                                                                                                     |
| ☑                                                   |     | No fee required.                                                                                    |
| ☐                                                   |     | Fee paid previously with preliminary materials.                                                     |
| ☐                                                   |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |