Mammoth Biosciences

SAN FRANCISCO, CA · Founded 2017 · Biotech · Private

CRISPR-based diagnostic platforms and gene editing therapies leveraging diverse Cas proteins

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Updated · mammoth.bio

Sector
Biotech
Headquarters
SAN FRANCISCO, CA
Founded
2017
Latest Form D
$13.2M, Aug 2018
Total capital
$41.4M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$20.6M
2 Form D · last Aug 2018
98 months since last filing
Federal contracts
$20.8M
1 award · Health and Human S
Rank in Biotech#41 of 4373
Granted patents
2
38 pending · first 2024
Rank in peer group#245 of 1449

Capital timeline

201820192020FEDERAL ↑EQUITY ↓Cumulative $41.4M$20.8M1st Form D$7.4M2nd Form D$13.2M
201820192020FEDERAL ↑EQUITY ↓Cumulative $41.4M$20.8M1st Form D$7.4M2nd Form D$13.2M

Latest events

  • Federal contractHealth and Human S · Radx Tech - Mammoth Biosciences Detection Of SARS-COV-2 With The Crispr-based Detectr Platform Under Radx Tech$20.8M
  • Private capital raisedForm D · SEC · 2nd filing$13.2M
  • Private capital raisedForm D · SEC · 1st filing$7.4M

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.

Standing among 1449 peers

Line = median

Biotech · Molecule

  • Granted patents#245 · top 17%

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

From SEC Form D filings
  • Ashley TehranchiExecutive Officer, DirectorNamed in SEC Form D filings
  • Janice ChenExecutive OfficerNamed in SEC Form D filings
  • Lucas HarringtonExecutive OfficerNamed in SEC Form D filings
  • Trevor MartinExecutive Officer, DirectorNamed in SEC Form D filings
  • Urshit ParikhDirectorNamed in SEC Form D filings

What it has protected

USPTO · 2 granted of 40
  • PendingEngineered Effector Proteins, Compositions, Systems And Methods Of Use ThereofUSPTOApplication 19343175
  • PendingUltracompact Precision Editing Systems And Uses ThereofUSPTOApplication 19334209
  • GrantedHigh-plex Guide Pooling For Nucleic Acid DetectionUSPTOUS 12,709,778
Show all 40 patent records
  • Engineered Effector Proteins, Compositions, Systems And Methods Of Use ThereofSep 3, 2026 · Application 19343175Pending
  • Ultracompact Precision Editing Systems And Uses ThereofSep 3, 2026 · Application 19334209Pending
  • High-plex Guide Pooling For Nucleic Acid DetectionAug 18, 2026 · US 12,709,778Granted
  • Compositions And Methods For Targeted Epigenetic ModificationJul 16, 2026 · Application 19385214Pending
  • Effector Proteins, Compositions, Systems And Methods Of Use ThereofJun 25, 2026 · Application 19361915Pending
  • Compositions And Methods For Precise Editing Of Human DystrophinApr 9, 2026 · Application 19410151Pending
  • Effector Proteins, Compositions, Systems And Methods Of Use ThereofFeb 26, 2026 · Application 19282985Pending
  • Compositions And Methods For The Modification And Regulation Of Liver Gene ExpressionJan 1, 2026 · Application 19309745Pending
  • Compositions And Methods For Modifying DUX4Sep 25, 2025 · Application 19230223Pending
  • Methods For Quantitation Of Nucleic Acid TargetsAug 21, 2025 · Application 19203260Pending
  • Compositions For The Modification Of The Human Nras And Kras GenesJun 5, 2025 · Application 18966406Pending
  • Fusion Proteins And Uses Thereof For Precision EditingJun 5, 2025 · Application 19044826Pending
  • Effector Proteins And Methods Of UseMay 15, 2025 · Application 18920678Pending
  • Engineered Cas-phi Proteins And Uses ThereofMay 8, 2025 · Application 18939374Pending
  • Compositions And Methods For Modifying A Human Dystrophin GeneMay 8, 2025 · Application 18919415Pending
  • Programmable Nuclease-based Assay ImprovementsApr 10, 2025 · Application 18741443Pending
  • Effector Proteins, Compositions, Systems, Devices, Kits And Methods Of Use ThereofMar 27, 2025 · Application 18643955Pending
  • Programmable Nucleases And Methods Of UseFeb 27, 2025 · Application 18673055Pending
  • Car T Cells Generated By Effector Proteins And Methods Related TheretoDec 12, 2024 · Application 18732352Pending
  • Methods And Compositions For Improved Snp DiscriminationDec 5, 2024 · Application 18431664Pending
  • Programmable Nuclease Diagnostic DeviceNov 21, 2024 · Application 18393023Pending
  • Systems And Uses Thereof For The Treatment Of Dmd-associated DiseasesNov 21, 2024 · Application 18679314Pending
  • Effector Proteins And Uses ThereofNov 21, 2024 · Application 18669081Pending
  • Effector Protein Compositions And Methods Of Use Thereof For Manufacturing Engineered HscsNov 7, 2024 · Application 18653793Pending
  • Devices, Systems, And Methods For Analysis Of Nucleic AcidsOct 31, 2024 · Application 18541650Pending
  • Programmable Nuclease Diagnostic DeviceOct 3, 2024 · Application 18058122Pending
  • Effector Proteins And Methods Of UseOct 3, 2024 · Application 18501102Pending
  • Fusion Effector Proteins And Uses ThereofOct 3, 2024 · Application 18632018Pending
  • Effector Proteins And Uses ThereofSep 12, 2024 · Application 18676562Pending
  • Methods And Compositions For Performing A Detection AssaySep 5, 2024 · Application 18334327Pending
  • Effector Proteins And Methods Of UseSep 3, 2024 · US 12,077,775Granted
  • Effector Proteins And Methods Of UseAug 15, 2024 · Application 18585306Pending
  • Vectors Encoding Gene Editing Systems And Uses ThereofJul 4, 2024 · Application 18413896Pending
  • Single-buffer Compositions For Nucleic Acid DetectionJun 27, 2024 · Application 18334320Pending
  • Programmable Nucleases And Methods Of UseJun 13, 2024 · Application 18364359Pending
  • Enhanced Guide Nucleic Acids And Methods Of UseJun 13, 2024 · Application 18506918Pending
  • Programmable Nucleases And Methods Of UseJun 13, 2024 · Application 18584462Pending
  • Programmable Nucleases And Methods Of UseMay 30, 2024 · Application 18481182Pending
  • Effector Proteins And Methods Of UseMay 30, 2024 · Application 18528523Pending
  • Devices, Assays And Methods For Detection Of Nucleic AcidsMay 2, 2024 · Application 18055814Pending

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 .