Therini Bio Funding, Investors & Competitors

Therini Bio has raised $101M across 4 funding rounds, most recently a $39M Series A in May 2025.

Last Therini Bio funding round

$39M

Series A · May 2025

Cumulative funding Therini Bio raised

$101M

across 4 funding rounds

Key investors in Therini Bio

  • Dolby Family Ventures
  • Dementia Discovery Fund
  • SV Health Investors
  • Sanofi Ventures
  • MRL Ventures Fund
  • Foundation for a Better World
  • Eli Lilly
  • Angelini Ventures

Therini Bio Overview

About Therini Bio

Therini Bio engineers fibrin-targeting biologics to treat neuroinflammatory diseases like multiple sclerosis and Alzheimer's. Drawing from Gladstone Institutes research, the South San Francisco-based company develops antibodies that block fibrin's role in chronic immune activation within the central nervous system and retina. Therini advances clinical candidates inhibiting fibrin-driven pathology while preserving its essential clotting functions.


Founded

2016

HQ

United StatesSan Francisco, CA

Status

Privately held

Customer focus

B2B

Revenue model

Product sales

Therini Bio Funding History

Therini Bio has raised a total of $101M across 4 funding rounds.

Therini Bio's first fundraising round was a $9M seed round in July 2019. The most recent completed round was a $39M Series A in May 2025.

Therini Bio funding rounds

Therini Bio funding rounds
DateStageInvestorsRaisedDeal Summary
May 2025Series ASV Health Investors; Angelini Ventures; Eli Lilly; MRL Ventures Fund; Dolby Family Ventures; Foundation for a Better World; Apollo Health Ventures; Sanofi Ventures; Dementia Discovery Fund$39MTherini Bio is a clinical-stage biotech company based in Sacramento, California, developing fibrin-targeting immunotherapies to address neuroinflammation in neurodegenerative diseases driven by vascular dysfunction, such as Alzheimer's disease (AD) and diabetic macular edema (DME). Its lead candidate, THN391, is a potential first-in-class, high-affinity humanized monoclonal antibody designed to selectively block fibrin-mediated neuroinflammation without affecting coagulation pathways. Preclinical data have shown THN391 prevents vascular and neuronal degeneration in models of AD and retinal diseases. On May 14, 2025, Therini Bio announced a $39 million Series A extension financing, bringing the total Series A raised to $75 million following an initial $36 million raise in April 2023. The extension included new investors Angelini Ventures and Apollo Health Ventures, alongside existing investors such as SV Health Investors' Biotech Fund, Dementia Discovery Fund, MRL Ventures Fund, Sanofi Ventures, Eli Lilly and Company, Dolby Family Ventures, and Foundation for a Better World. Proceeds from the financing are designated to fund Phase 1b clinical trials of THN391 in AD and DME, as well as to support development of a fibrin/VEGF bispecific therapy. The company is preparing to begin dosing patients in these Phase 1b studies, building on promising preclinical results. Tara Nickerson, PhD, CEO of Therini Bio, highlighted the investor support in advancing this novel mechanism to patients. The funding underscores investor confidence in Therini Bio's approach to targeting toxic fibrin accumulation as a central driver of destructive neuroinflammation in these indications.
Apr 2023Series ADementia Discovery Fund (lead); MRL Ventures Fund (lead); SV Health Investors; Eli Lilly; Dolby Family Ventures; Foundation for a Better World; Alzheimer's Drug Discovery Foundation; Sanofi Ventures$36MTherini Bio is a South San Francisco-based biotechnology company developing fibrin-targeted therapies to address chronic inflammation in neurodegenerative diseases like Alzheimer's and multiple sclerosis, as well as retinal diseases such as diabetic macular edema. The company's lead candidate, THN391, is a monoclonal antibody that selectively binds the inflammatory component of fibrin without interfering with its clotting function, supported by preclinical data. Originating from technology by Katerina Akassoglou at UCSF and initially named MedaRed, Therini has advanced from seed funding stages to clinical development. On April 27, 2023, Therini closed a $36 million Series A financing round, co-led by Dementia Discovery Fund, MRL Ventures Fund (Merck's venture arm), Sanofi Ventures, and SV Health Investors’ Impact Medicine Fund. New investor Eli Lilly participated alongside existing backers Alzheimer's Drug Discovery Foundation, Dolby Family Ventures, and Foundation for a Better World. This round brought total funding since 2016 inception to $62 million, following prior seed rounds of $6.5 million in 2019 and $17 million extension in 2021. The company issued 60,000,000 series A preferred shares for the gross proceeds. Proceeds will advance THN391 into clinical trials, with early safety and proof-of-mechanism data expected by end of 2024. Therini also received a $3 million non-dilutive grant from the National Institute on Aging in 2021.
May 2021SeedMRL Ventures Fund (lead); Sanofi Ventures (lead); SV Health Investors (lead); Dolby Family Ventures; Foundation for a Better World; Dementia Discovery Fund$17MTherini Bio is a vascular biology company based in South San Francisco, focused on discovering and developing therapeutics targeting fibrin for neurological and peripheral diseases, including inflammatory conditions associated with vascular damage. The company was co-founded by Dr. Katerina Akassoglou based on discoveries from her laboratory at Gladstone Institutes and UC San Francisco regarding a cryptic epitope on fibrin that drives toxic chronic inflammation. Therini’s lead program is a monoclonal antibody against fibrin designed to selectively block this epitope without affecting coagulation. On May 10, 2021, Therini Bio completed an oversubscribed Seed Extension round raising $17 million. The round was co-led by SV Health Investors’ Impact Medicine Fund, MRL Ventures, and Sanofi Ventures, joining existing investors Dementia Discovery Fund and Dolby Family Ventures, plus new investor Foundation for a Better World. Proceeds will accelerate development of the lead antibody program towards clinical trials and expand the portfolio of antibodies for treating and diagnosing various clinical indications. Dr. Christine Brennan from MRL Ventures and Dr. Jim Trenkle from Sanofi Ventures joined the board upon closing. This followed an initial Seed funding of $9.35 million in 2020 led by Dementia Discovery Fund, Dolby Family Ventures, and Alzheimer's Drug Discovery Foundation.
Jul 2019SeedDementia Discovery Fund (lead); Dolby Family Ventures (lead)$9M-

Who has invested in Therini Bio?

10 investors have backed Therini Bio across its funding rounds, including Dolby Family Ventures, Dementia Discovery Fund, SV Health Investors, Sanofi Ventures, MRL Ventures Fund and Foundation for a Better World.

Lead investors include Dementia Discovery Fund, MRL Ventures Fund, Sanofi Ventures, SV Health Investors and Dolby Family Ventures.


Therini Bio Investors

Investors in Therini Bio by funding rounds participated
InvestorHQRoundsRoleFirst check
Dolby Family VenturesUnited StatesSan Francisco, CA4LeadJul 2019
Dementia Discovery FundUnited KingdomLondon4LeadJul 2019
SV Health InvestorsUnited StatesBoston, MA3LeadMay 2021
MRL Ventures FundUnited StatesUnited States3LeadMay 2021
Foundation for a Better WorldUnited StatesAtlanta, GA3ParticipantMay 2021
Sanofi VenturesUnited StatesUnited States3LeadMay 2021
Eli LillyUnited StatesIndianapolis, IN2ParticipantApr 2023
Angelini VenturesItalyRome1ParticipantMay 2025

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Therini Bio Competitors

Therini Bio competitors include listed companies like Eli Lilly, Johnson & Johnson, AbbVie and Merck, and private ones like Biosplice Therapeutics and Biocon Biologics.

Public and private companies comparable to Therini Bio
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Eli LillyUnited StatesUnited StatesPublicly listed$65B$28B$1.0T13.1x
Johnson & JohnsonUnited StatesUnited StatesPublicly listed$94B$40B$651B6.8x
AbbVieUnited StatesUnited StatesPublicly listed$61B$17B$467B8.1x
MerckUnited StatesUnited StatesPublicly listed$65B$28B$363B6.2x
Biosplice TherapeuticsUnited StatesSan Diego, CAPrivate--$12B-
Biocon BiologicsIndiaBangalorePrivate$1.1B-$4.5B4.2x

Therini Bio Public Comps

Therini Bio is still privately-owned, but its public comps include Eli Lilly, Johnson & Johnson, AbbVie, Merck, Roche, Novartis, AstraZeneca, Amgen, Novo Nordisk and Gilead Sciences.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Eli Lilly$65B$28B16.5x13.1x38.7x27.0x
Johnson & Johnson$94B$40B7.2x6.8x17.0x18.3x
AbbVie$61B$17B8.7x8.1x30.6x17.6x
Merck$65B$28B6.3x6.2x14.7x21.0x
Roche$77B$26B5.0x4.9x14.6x12.4x
Novartis$57B$22B5.5x5.5x14.2x13.3x
AstraZeneca$59B$19B4.8x4.5x14.6x12.7x
Amgen$37B$17B6.8x6.5x14.8x14.4x

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Common questions about Therini Bio

When was Therini Bio founded?Therini Bio was founded in 2016.
Where is Therini Bio headquartered?Therini Bio is headquartered in San Francisco, CA, United States.
Is Therini Bio publicly listed?No, Therini Bio is a private, VC-backed company.
How much funding has Therini Bio raised?Therini Bio has raised $101M across 4 funding rounds.
What was Therini Bio's last funding round?Therini Bio's last funding round was a $39M Series A in May 2025.
Who are Therini Bio's investors?Therini Bio's investors include Dolby Family Ventures, Dementia Discovery Fund, SV Health Investors, MRL Ventures Fund, Foundation for a Better World, Sanofi Ventures, Eli Lilly, Angelini Ventures, Apollo Health Ventures and Alzheimer's Drug Discovery Foundation.
Which companies are comparable to Therini Bio?Companies comparable to Therini Bio include Eli Lilly, Johnson & Johnson, AbbVie, Merck, Biosplice Therapeutics and Biocon Biologics.

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