- conflicts or gaps
- [[{"field": {"value": "total_funding", "source_urls": ["https://www.linkedin.com/company/persephone-biosciences", "https://www.cbinsights.com/company/persephone-biome/financials", "https://www.trysignalbase.com/news/funding/persephone-biosciences-secures-6.3-million-in-seed-funding-to-revolutionize-microbial-products-for-health-solutions"]}, "conflict": {"value": "LinkedIn reports $15.12M total; CB Insights reports $15M over 6 rounds including undisclosed Oct 2024 Mesa Verde round; Signalbase/BiotechMetro cite additional $6.3M in early 2025 without company press release confirmation.", "source_urls": ["https://www.linkedin.com/company/persephone-biosciences", "https://www.cbinsights.com/company/persephone-biome/financials", "https://www.trysignalbase.com/news/funding/persephone-biosciences-secures-6.3-million-in-seed-funding-to-revolutionize-microbial-products-for-health-solutions", "https://biotechmetro.com/inside-persephones-strategy-unlocking-the-microbiome-for-scalable-precision-therapeutics/", "https://persephone.bio/pages/press"]}}, {"field": {"value": "employee_count", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://www.sdbj.com/life-sciences/biotech-life-sciences/persephone-lands-15m-seed-for-microbiome-platform/", "https://www.linkedin.com/company/persephone-biosciences"]}, "conflict": {"value": "YC lists team size 6; SDBJ (Jul 2022) lists 11 employees; LinkedIn (2026) lists 19 employees with declining trend.", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://www.sdbj.com/life-sciences/biotech-life-sciences/persephone-lands-15m-seed-for-microbiome-platform/", "https://www.linkedin.com/company/persephone-biosciences"]}}, {"field": {"value": "co_founder_cto_name", "source_urls": ["https://persephone.bio/pages/team", "https://www.ycombinator.com/companies/persephone-biosciences", "https://www.sec.gov/Archives/edgar/data/1848850/000184885021000002/0001848850-21-000002.txt"]}, "conflict": {"value": "Company site uses 'Steve Van Dien'; YC and SEC Form D use 'Stephen Van Dien'.", "source_urls": ["https://persephone.bio/pages/team", "https://www.ycombinator.com/companies/persephone-biosciences", "https://www.sec.gov/Archives/edgar/data/1848850/000184885021000002/0001848850-21-000002.txt"]}}, {"field": {"value": "co_founder_cto_current_role", "source_urls": ["https://persephone.bio/pages/team", "https://people.equilar.com/bio/person/stephanie-culler-persephone-biosciences/27184229"]}, "conflict": {"value": "Company team page still lists Van Dien as CTO & Co-Founder; Equilar (2026) lists Stephen van Dien as VP Commercialization at Kalion, Inc., suggesting possible role change not reflected on Persephone site.", "source_urls": ["https://persephone.bio/pages/team", "https://people.equilar.com/bio/person/stephanie-culler-persephone-biosciences/27184229"]}}, {"field": {"value": "headquarters_address", "source_urls": ["https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&filenum=021-391291", "https://www.linkedin.com/company/persephone-biosciences"]}, "conflict": {"value": "SEC filings list 3210 Merryfield Row; LinkedIn HQ lists 10835 Road To the Cure Suite 150; company may operate multiple San Diego sites or have relocated.", "source_urls": ["https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&filenum=021-391291", "https://www.linkedin.com/company/persephone-biosciences"]}}, {"field": {"value": "website_domain", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://persephone.bio/pages/press-persephone-biosciences-closes-15m-seed-financing-round", "https://www.globenewswire.com/news-release/2026/06/23/3315923/0/en/Persephone-Biosciences-Science-Backed-Infant-and-Toddler-Synbiotics-Now-Available-on-Amazon.html"]}, "conflict": {"value": "YC and older press reference persephonebiosciences.com; current primary domain is persephone.bio.", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://persephone.bio/pages/press-persephone-biosciences-closes-15m-seed-financing-round", "https://www.globenewswire.com/news-release/2026/06/23/3315923/0/en/Persephone-Biosciences-Science-Backed-Infant-and-Toddler-Synbiotics-Now-Available-on-Amazon.html"]}}, {"field": {"value": "business_focus", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://www.linkedin.com/company/persephone-biosciences", "https://www.bloomberg.com/profile/company/1991362D:US"]}, "conflict": {"value": "YC tagline emphasizes oncology ('end cancer'); LinkedIn/Bloomberg emphasize B2C infant probiotics; company now operates both therapeutics (ARGONAUT) and consumer health (Amazon synbiotics) divisions.", "source_urls": ["https://www.ycombinator.com/companies/persephone-biosciences", "https://www.linkedin.com/company/persephone-biosciences", "https://www.bloomberg.com/profile/company/1991362D:US", "https://apnews.com/press-release/globenewswire-mobile/laurence-watts-1626e641e08c273ce8dfe62ddd0ec23f"]}}, {"field": {"value": "argonaut_trial_status", "source_urls": ["https://clinicaltrials.gov/study/NCT04638751", "https://www.centerwatch.com/clinical-trials/listings/NCT04638751/argonaut-stool-and-blood-sample-bank-for-cancer-patients"]}, "conflict": {"value": "ClinicalTrials.gov lists overall status UNKNOWN; CenterWatch lists multiple sites as Active-Recruiting.", "source_urls": ["https://clinicaltrials.gov/study/NCT04638751", "https://www.centerwatch.com/clinical-trials/listings/NCT04638751/argonaut-stool-and-blood-sample-bank-for-cancer-patients"]}}, {"field": {"value": "2025_funding_round", "source_urls": ["https://www.trysignalbase.com/news/funding/persephone-biosciences-secures-6.3-million-in-seed-funding-to-revolutionize-microbial-products-for-health-solutions", "https://persephone.bio/pages/press"]}, "gap": {"value": "No official Persephone press release or SEC filing found confirming the reported $6.3M January 2025 round; only secondary sources (Signalbase, BiotechMetro) cite it.", "source_urls": ["https://www.trysignalbase.com/news/funding/persephone-biosciences-secures-6.3-million-in-seed-funding-to-revolutionize-microbial-products-for-health-solutions", "https://biotechmetro.com/inside-persephones-strategy-unlocking-the-microbiome-for-scalable-precision-therapeutics/", "https://persephone.bio/pages/press"]}}, {"field": {"value": "2024_mesa_verde_round_amount", "source_urls": ["https://www.cbinsights.com/company/persephone-biome/financials", "https://pitchbook.com/profiles/investor/52568-20"]}, "gap": {"value": "Oct 11, 2024 Mesa Verde investment confirmed by CB Insights and PitchBook but dollar amount not publicly disclosed.", "source_urls": ["https://www.cbinsights.com/company/persephone-biome/financials", "https://pitchbook.com/profiles/investor/52568-20"]}}]]
- source urls
- ["https://apnews.com/press-release/globenewswire-mobile/laurence-watts-1626e641e08c273ce8dfe62ddd0ec23f", "https://biotechmetro.com/inside-persephones-strategy-unlocking-the-microbiome-for-scalable-precision-therapeutics/", "https://clinicaltrials.gov/study/NCT04638751", "https://linkedin.com/in/stephanie-culler", "https://people.equilar.com/bio/person/stephanie-culler-persephone-biosciences/27184229", "https://persephone.bio/pages/press", "https://persephone.bio/pages/press-persephone-biosciences-closes-15m-seed-financing-round", "https://persephone.bio/pages/team", "https://pitchbook.com/profiles/investor/52568-20", "https://startupintros.com/news/2018-01-01-persephone-biosciences-seed", "https://techcrunch.com/2022/07/19/persephone-puts-poop-to-work-to-explore-and-heal-your-gut-microbiome/", "https://thesis.library.caltech.edu/2277/", "https://www.bloomberg.com/profile/company/1991362D:US", "https://www.businesswire.com/news/home/20220719005509/en/Persephone-Biosciences-Closes-%2415M-Seed-Financing-Round", "https://www.cbinsights.com/company/persephone-biome/financials", "https://www.centerwatch.com/clinical-trials/listings/NCT04638751/argonaut-stool-and-blood-sample-bank-for-cancer-patients", "https://www.globenewswire.com/news-release/2022/09/20/2519538/0/en/Persephone-Biosciences-Announces-First-Participant-Enrolled-in-the-ARGONAUT-Study-of-Gut-Microbiome-Linked-Immune-Modulation-in-Cancer-Treatment-Response.html", "https://www.globenewswire.com/news-release/2026/06/23/3315923/0/en/Persephone-Biosciences-Science-Backed-Infant-and-Toddler-Synbiotics-Now-Available-on-Amazon.html", "https://www.linkedin.com/company/persephone-biosciences", "https://www.sdbj.com/life-sciences/biotech-life-sciences/persephone-lands-15m-seed-for-microbiome-platform/", "https://www.sec.gov/Archives/edgar/data/1848850/000184885021000002/0001848850-21-000002.txt", "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&filenum=021-391291", "https://www.trysignalbase.com/news/funding/persephone-biosciences-secures-6.3-million-in-seed-funding-to-revolutionize-microbial-products-for-health-solutions", "https://www.ycombinator.com/companies/persephone-biosciences"]