# Seismic Therapeutic funding: rounds and investors

> Seismic Therapeutic has raised $25M across 1 round since 2024. Investors include Lightspeed Venture Partners, Bessemer Venture Partners and Gaingels.

Source: https://millionrounds.com/company/seismic-therapeutic (Millionrounds; every figure on the page links to its filing or article)

United States · [Series B startup](https://millionrounds.com/companies)

# Who invested in *Seismic Therapeutic*

One round we have observed, with the 5 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Funding summary Updated 26 Oct 2026

**$25M** raised across 1 round since 2024, from 1 source

- **Latest round:** Series B, $25M Sept 2024
- **Investors:** 5

See who backed them

## The rounds

- **Sept 2024** Series B **$25M** [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) [Gaingels](https://millionrounds.com/fund/gaingels) [Polaris Partners](https://millionrounds.com/fund/polaris-partners) [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) Source recorded SEC filing: $146M sold, first sale Nov 2023

## Founders and team

From Seismic Therapeutic's own website: 2 founders, 1 on the team.

**Alan Crane** Founder and Chairman of Seismic Therapeutic; Polaris Partners

**Harvard Medical School** Founder

- **Melanie Manning** Chief People Officer

## Everyone who backed them

[Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **1** round

[Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) VC firm **1** round

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **1** round

[Polaris Partners](https://millionrounds.com/fund/polaris-partners) VC firm **1** round

[Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=seismic-therapeutic).

## Quick answers about Seismic Therapeutic

### Who invested in Seismic Therapeutic?

Seismic Therapeutic's investors include Lightspeed Venture Partners, Bessemer Venture Partners, Gaingels, Polaris Partners and Samsara BioCapital.

### How much has Seismic Therapeutic raised?

Seismic Therapeutic has raised $25M across 1 round since 2024.

### When did Seismic Therapeutic last raise?

Seismic Therapeutic's most recent round was a Series B of $25M in Sept 2024.

### What was Seismic Therapeutic's biggest round?

Its most recent round, $25M in Sept 2024, is also its largest on record.

### Who backed Seismic Therapeutic first?

Seismic Therapeutic's first round on record, in Sept 2024, was backed by Lightspeed Venture Partners, Bessemer Venture Partners and Gaingels and 2 others.

### What stage is Seismic Therapeutic at?

Seismic Therapeutic's latest named round is a Series B, in Sept 2024.

### Where is Seismic Therapeutic based?

Seismic Therapeutic is based in the United States.

## Companies like Seismic Therapeutic

In the same sector, and raised in the last eighteen months.

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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