Bolt Threads, Inc.
Engineered biomaterials for personal care formulations
- Sector
- Materials
- Headquarters
- EMERYVILLE, CA
- Founded
- 2009
- Latest Form D
- $56.9M, Oct 2017
- Total capital
- $129M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $129M
- 5 Form D · last Oct 2017
- 108 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 18
- 22 pending · first 2021
- Rank in peer group#10 of 369
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 4th filing$56.9M
- Private capital raisedForm D · SEC · 3rd filing$34.9M
- Private capital raisedForm D · SEC · 2nd filing$32.4M
- Private capital raisedForm D · SEC · 1st filing$5.1M
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.
1 record has no date or no amount, so it isn’t placed on the timeline.
Standing among 369 peers
Line = medianMaterials · Material
- Granted patents#10 · top 3%
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- Daniel WidmaierResearcherExecutive Officer, DirectorLinked by 1 patent
- David BreslauerExecutive Officer, DirectorNamed in SEC Form D filings
- Ethan MirskyExecutive OfficerNamed in SEC Form D filings
- Jerry FiddlerDirectorNamed in SEC Form D filings
- Jim KimDirectorNamed in SEC Form D filings
- Steven VassalloDirectorNamed in SEC Form D filings
What it has protected
USPTO · 18 granted of 40- GrantedModified Strains For The Production Of Recombinant SilkUSPTOUS 12,655,411
- PendingCross-Linked Elastomeric Proteins in Polar Nonaqueous Solvents and Uses ThereofUSPTOApplication 19172617
- GrantedMethods And Compositions For Synthesizing Improved Silk FibersUSPTOUS 12,577,354
Show all 40 patent records
- Modified Strains For The Production Of Recombinant SilkJun 16, 2026 · US 12,655,411Granted
- Cross-Linked Elastomeric Proteins in Polar Nonaqueous Solvents and Uses ThereofApr 23, 2026 · Application 19172617Pending
- Methods And Compositions For Synthesizing Improved Silk FibersMar 17, 2026 · US 12,577,354Granted
- Cosmetic And Personal Care Compositions Comprising Recombinant SilkMar 12, 2026 · Application 18706281Pending
- Compositions And Methods For Producing High Secreted Yields Of Recombinant ProteinsSep 18, 2025 · Application 19223644Pending
- Cosmetic and Personal Care compositionsSep 11, 2025 · Application 19060145Pending
- Modified Strains For Improved Secretion Of Recombinant ProteinsSep 11, 2025 · Application 19191916Pending
- Compositions and Methods for Producing High Secreted Yields of Recombinant ProteinsJun 10, 2025 · US 12,325,730Granted
- Composite Mycelium Materials With Enhanced Mechanical And Aesthetic Properties, And Embossing Methods For Producing SameMay 8, 2025 · Application 18730006Pending
- Cross-linked Elastomeric Proteins In Polar Nonaqueous Solvents And Uses ThereofApr 8, 2025 · US 12,268,275Granted
- Methods of Generating Highly-Crystalline Recombinant Spider Silk Protein FibersJan 28, 2025 · US 12,209,331Granted
- Compositions For Producing Cellulose-resilin And Cellulose-collagen FibersJan 16, 2025 · Application 18713165Pending
- Composition For A Molded BodyJan 2, 2025 · Application 18825861Pending
- Compositions and Methods for Producing High Secreted Yields of Recombinant ProteinsOct 22, 2024 · US 12,122,810Granted
- Elastomeric ProteinsSep 5, 2024 · Application 18533639Pending
- A Composite Material With Enhanced Resistance, And Methods For Production ThereofJun 13, 2024 · Application 18287601Pending
- Recombinant Silk Compositions And Methods Of Making ThereofFeb 15, 2024 · Application 18017216Pending
- Composite Material, And Methods For Production ThereofFeb 6, 2024 · US 11,891,514Granted
- Functionalization of Mycelium MaterialsJan 4, 2024 · Application 18254129Pending
- Elastomeric ProteinsJan 2, 2024 · US 11,858,971Granted
- Compositions And Methods For Producing High Secreted Yields Of Recombinant ProteinsAug 15, 2023 · US 11,725,030Granted
- SEC Modified Strains for Improved Secretion of Recombinant ProteinsApr 25, 2023 · US 11,634,729Granted
- Composite Material With Increased Yield, And Methods For Production ThereofApr 20, 2023 · Application 17962130Pending
- Recombinant Silk Solids And FilmsMar 9, 2023 · Application 17799051Pending
- Long Uniform Recombinant Protein FibersMar 2, 2023 · Application 17819126Pending
- Mycelium Materials, And Methods For Production ThereofFeb 23, 2023 · Application 17792176Pending
- System And Method For Manufacturing Custom-sized GarmentsDec 6, 2022 · US 11,519,109Granted
- Methods For Isolating Spider Silk Proteins Via High Shear SolubilizationNov 24, 2022 · Application 17636721Pending
- Methods and Compositions for Synthesizing Improved Silk FibersNov 22, 2022 · US 11,505,654Granted
- Long Uniform Recombinant Protein FibersSep 20, 2022 · US 11,447,532Granted
- Methods For Improved Extraction Of Spider Silk ProteinsSep 15, 2022 · Application 17633498Pending
- Recombinant Spider Silk Extrudate FormulationsSep 1, 2022 · Application 17626258Pending
- Compositions And Methods For Producing High Secreted Yields Of Recombinant ProteinsJun 28, 2022 · US 11,370,815Granted
- Compositions And Methods For Producing High Secreted Yields Of Recombinant ProteinsApr 19, 2022 · US 11,306,127Granted
- Alkaline Purification Of Spider Silk ProteinsJan 20, 2022 · Application 17297787Pending
- Methods Of Generating Mycelium Materials With Improved PropertiesJan 13, 2022 · Application 17293384Pending
- Modified Strains for the Production of Recombinant SilkJan 4, 2022 · US 11,214,785Granted
- Resilin Material Footwear And Fabrication MethodsDec 30, 2021 · Application 17470062Pending
- Methods Of Generating Highly-crystalline Recombinant Spider Silk Protein FibersDec 28, 2021 · US 11,208,736Granted
- Methods and Compositions for Synthesizing Improved Silk FibersDec 7, 2021 · US 11,192,982Granted
Related companies, and why
- Meijo Nano CarbonSimilar federal contract value in Materials · null in contracts
- Bernastic, LLCSimilar federal contract value in Materials · null in contracts
- AnCatt Inc.Similar federal contract value in Materials · null in contracts
- MEMBRANE TECHNOLOGY & RESEARCH, INC.Similar federal contract value in Materials · null in contracts
- Graphene Composites USA, Inc.Similar federal contract value in Materials · null in contracts
- KULTEVAT, INC.Similar federal contract value in Materials · null in contracts
Regulatory activity · Materials
- Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
- Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
- Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology
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 .