Company: CWAN
Filing Date: 2025-03-31
Form Type: S-3ASR
Source: 0001193125-25-068794
Chunk: 1

Company: Clearwater Analytics Holdings, Inc.
Filing Date: 2025-03-31
Form: S-3ASR
Chunk 1
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 Act, check the following box: ☒ If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box: ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-acceleratedfiler, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2of the Exchange Act.

| Large accelerated filer |     | ☒ |     | Accelerated filer         |     | ☐ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☐ |
|                         |     |   |     | Emerging growth company   |     | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

Prospectus

Clearwater Analytics Holdings, Inc.

Class A Common Stock

Offered, from time to time, by Clearwater Analytics Holdings, Inc.

3,833,333 Shares

Class A Common Stock

Offered, from time to time, by the Selling Stockholder

Clearwater
Analytics Holdings, Inc. (“Clearwater,” the “Company,” “we,” “us” or “our”) may offer and sell shares of our Class A common stock from time to time in one or more transactions in amounts, at
prices and on terms that will be determined at the time of the relevant offering.

In addition, the selling stockholder of Clearwater
named herein (the “Selling Stockholder”) may, from time to time, in one or more transactions, offer and sell up to 3,833,333 shares of Class A common stock, at prices and on terms that will be determined at the time of the relevant
offering. We will not receive any of the proceeds from the sale of our Class A common stock offered by the Selling Stockholder.

We
may offer and sell shares of our Class A common stock, in the same offering or in separate offerings, to or through one or more under