Linnaeus Therapeutics LLC

Philadelphia, PA · Founded 2015 · Biotech · Private

LNS8801, a first-in-class GPER agonist small molecule therapeutic

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Updated · linnaeustx.com

Sector
Biotech
Headquarters
Philadelphia, PA
Founded
2015
Latest Form D
$4.5M, Feb 2026
Total capital
$31.7M
Federal grants
$12.6M
9 awards · 2018–2026
Rank in peer group#207 of 514
Private capital raised
$19.1M
7 Form D · last Feb 2026
8 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
2
11 pending · first 2021
Rank in peer group#142 of 514

Capital timeline

20182020202220242026FEDERAL ↑EQUITY ↓Cumulative $31.7M$1M$1M$2M$4M$2M$1.0M1st Form D$2.2M3rd Form D$4.3M4th Form D$3.1M7th Form D$4.5M
20182020202220242026FEDERAL ↑EQUITY ↓Cumulative $31.7M$1M$2M$4M3rd Form D$4.3M

Latest events

  • Federal grantHealth and Human S · Phase II · Development of LNS8801 for cutaneous melanoma patients who cannot tolerate immunotherapy$1.0M
  • Private capital raisedForm D · SEC · 7th filing$4.5M
  • Private capital raisedForm D · SEC · 6th filing$1.3M
  • Federal grantHealth and Human S · Phase II · Development of LNS8801 for cutaneous melanoma patients who cannot tolerate immunotherapy$1.0M
  • Private capital raisedForm D · SEC · 5th filing$1.6M
  • Federal grantHealth and Human S · Phase II · Development of GPER Agonists as Therapeuticsfor Cutaneous and Uveal Melanoma$2M
  • Private capital raisedForm D · SEC · 4th filing$3.1M
  • Private capital raisedForm D · SEC · 3rd filing$4.3M
  • Private capital raisedForm D · SEC · 2nd filing$2.2M
  • Private capital raisedForm D · SEC · 1st filing$2.2M
Show 6 earlier federal awards
  • Federal grantHealth and Human S · Phase II · Development of GPER Agonists as Therapeuticsfor Cutaneous and Uveal Melanoma$4M
  • Federal grantHealth and Human S · Phase II · Development of GPER Agonists as Therapeuticsfor Cutaneous and Uveal Melanoma$2M
  • Federal grantHealth and Human S · Phase II · Development of GPER Agonists as Cancer Therapeutics$1M
  • Federal grantHealth and Human S · Phase II · Development of GPER Agonists as Cancer Therapeutics$1M
  • Federal grantHealth and Human S · Phase I · Development of GPER agonists as Cancer Therapeutics$300K
  • Federal grantHealth and Human S · Phase I · Development of GPER agonists as Cancer Therapeutics$300K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Federal first

6months

from Linnaeus Therapeutics LLC’s first federal award to its first private round.

First federal award · Mar 2018
Health and Human S · $300K
First Form D · Sep 2018
$2.2M · 1st Form D
Awards before first raise
2 awards

An association in public records, not a cause or a prediction.

Standing among 514 peers

Line = median

Biotech · Molecule

  • Federal grants#207 · top 40%
  • Granted patents#142 · top 28%
  • Linked publications#46 · top 9%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

Researcher links verified by same-company patents and grants
  • Christopher D. NataleResearcherExecutive OfficerLinked by 2 patents
  • Chris ArendtDirectorNamed in SEC Form D filings
  • Jack T. LeppingDirectorNamed in SEC Form D filings
  • James T. DemetriadesDirectorNamed in SEC Form D filings
  • John LeppingDirectorNamed in SEC Form D filings
  • Michael PoiselDirectorNamed in SEC Form D filings
Show all 9 people
  • Nicholas D. IatropoulosDirectorNamed in SEC Form D filings
  • Patrick MooneyExecutive Officer, DirectorNamed in SEC Form D filings
  • Todd T. ThomsonDirectorNamed in SEC Form D filings

What it has protected

USPTO · 2 granted of 13
  • PendingEnantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsUSPTOApplication 18752146
  • PendingOncologic Variations Associated With Cancer And Methods Of TreatmentUSPTOApplication 18554260
  • PendingDiagnostic Methods And Compositions For Treatment Of CancerUSPTOApplication 18561965
Show all 13 patent records
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsMay 29, 2025 · Application 18752146Pending
  • Oncologic Variations Associated With Cancer And Methods Of TreatmentNov 14, 2024 · Application 18554260Pending
  • Diagnostic Methods And Compositions For Treatment Of CancerJul 25, 2024 · Application 18561965Pending
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsNov 30, 2023 · Application 18364690Pending
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsSep 19, 2023 · US 11,760,749Granted
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsMar 24, 2022 · Application 17328590Pending
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsMar 2, 2021 · US 10,934,277Granted
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsJan 23, 2020 · Application 16518516Pending
  • Enantiomerically Purified Gper Angonist For Use In Treating Disease States And ConditionsApplication 62701726Pending
  • Oncologic Variations Associated With Cancer And Methods Of TreatmentApplication PCTUS2022023768Pending
  • Diagnostic Methods And Compositions For Treatment Of CancerApplication 63190484Pending
  • Oncologic Variations Associated with Cancer and Methods of TreatmentApplication 63172485Pending
  • Enantiomerically Purified Gper Agonist For Use In Treating Disease States And ConditionsApplication PCTUS2019042827Pending

Recent research by its founders

  • LNS8801: An Enantiomerically Pure Agonist of the G Protein–Coupled Estrogen Receptor Suitable for Clinical Development20258 cites
  • Data from LNS8801: An Enantiomerically Pure Agonist of the G Protein–Coupled Estrogen Receptor Suitable for Clinical Development20250 cites
  • Figure 1 from LNS8801: An Enantiomerically Pure Agonist of the G Protein–Coupled Estrogen Receptor Suitable for Clinical Development20250 cites
  • Inflection MedicineSimilar federal contract value in Biotech · null in contracts
  • TenvieSimilar federal contract value in Biotech · null in contracts
  • Aplexis, Inc.Similar federal contract value in Biotech · null in contracts
  • TARGETSITE THERAPEUTICS CORPORATIONSimilar federal contract value in Biotech · null in contracts
  • C2N DIAGNOSTICS LLCSimilar federal contract value in Biotech · null in contracts
  • I Peace, Inc.Similar federal contract value in Biotech · null in contracts

Regulatory activity · Biotech

Sector-level, not company-level

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .