Diligence memo · auto-generated · as of July 2, 2026
Z53 Therapeutics, LLC
Z53 Therapeutics, LLC looks fair against its niche peers and is dormant on financing cadence.
Businessfiled
Z53 Therapeutics, LLC operates in Pharmaceuticals, based in CLEVELAND.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Z53 Therapeutics, LLC has raised $550K in disclosed capital across 1 recorded round, aggregated from public filings. Its latest round is modeled as Pre-Seed (a round under $1.0M).
Largest single filing: $550K on 2016-02-19.
Most recent recorded round closed around 2016-02-19.
Valuation (modeled)modeled
Provath models Z53 Therapeutics, LLC at approximately $26M (range $308K–$295M). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Fair. Modeled value is 1.37× the median modeled value of Pre-Seed Pharmaceuticals companies in 2016–2018 (56 peers) — value vs value, same stage and era. Within the normal band (137% of peer median) for its niche.
Financing rhythm & timingmixed
Last raise 10.4 yr ago; this sector typically re-raises about every 13 months.
Only one round on record and long silent — often defunct, acquired, or gone quiet.
Comparablesmixed
Capital scale ranks ahead of 13% of Pharmaceuticals peers (1613 compared).
Modeled value ranks above 32% of those peers.
Closest niche peers: Essentia Pharma Socal, Llc, Essentia Pharma Florida, Llc, Novellus LLC, Blake Insomnia Therapeutics, Inc., Eleusis Benefit Corporation, PBC.
Peoplefiled
1 named person on file across officers, directors and signatories.
Risks & flagsmixed
Financing has been silent well beyond sector cadence — possibly defunct, acquired, or paused.
No clearly named CEO/founder/principal in the surfaced records — key-person evidence is thin.