{"ticker": "BLLN", "overview": {"cik": "2070849", "ticker": "BLLN", "name": "BillionToOne, Inc.", "industry": "Services-Medical Laboratories", "country": "United States", "sic": "8071", "announcements": [{"form": "4", "date": "2026-10-30", "title": "FORM 4", "accession": "0002088549-26-000017", "price_sensitive": false}, {"form": "3", "date": "2026-10-30", "title": "OWNERSHIP DOCUMENT", "accession": "0001104659-26-120691", "price_sensitive": false}, {"form": "144", "date": "2026-10-28", "title": "Notice of proposed sale", "accession": "0001959173-26-007518", "price_sensitive": false}, {"form": "144", "date": "2026-10-28", "title": "Notice of proposed sale", "accession": "0001959173-26-007517", "price_sensitive": false}, {"form": "4", "date": "2026-10-19", "title": "FORM 4", "accession": "0002070849-26-000074", "price_sensitive": false}, {"form": "4", "date": "2026-10-16", "title": "FORM 4", "accession": "0002088549-26-000015", "price_sensitive": false}, {"form": "144", "date": "2026-10-15", "title": "Notice of proposed sale", "accession": "0001959173-26-007402", "price_sensitive": false}, {"form": "4", "date": "2026-10-14", "title": "FORM 4", "accession": "0002070849-26-000072", "price_sensitive": false}, {"form": "144", "date": "2026-10-14", "title": "Notice of proposed sale", "accession": "0001959173-26-007375", "price_sensitive": false}, {"form": "144", "date": "2026-10-14", "title": "Notice of proposed sale", "accession": "0001959173-26-007366", "price_sensitive": false}, {"form": "4", "date": "2026-10-13", "title": "FORM 4", "accession": "0002070849-26-000071", "price_sensitive": false}, {"form": "144", "date": "2026-10-13", "title": "Notice of proposed sale", "accession": "0001959173-26-007347", "price_sensitive": false}, {"form": "144", "date": "2026-10-13", "title": "Notice of proposed sale", "accession": "0001959173-26-007346", "price_sensitive": false}, {"form": "4", "date": "2026-10-07", "title": "FORM 4", "accession": "0002087126-26-000018", "price_sensitive": false}, {"form": "4", "date": "2026-10-07", "title": "FORM 4", "accession": "0002087127-26-000015", "price_sensitive": false}, {"form": "144", "date": "2026-10-05", "title": "Notice of proposed sale", "accession": "0001959173-26-007272", "price_sensitive": false}, {"form": "144", "date": "2026-10-05", "title": "Notice of proposed sale", "accession": "0001959173-26-007258", "price_sensitive": false}, {"form": "144", "date": "2026-10-05", "title": "Notice of proposed sale", "accession": "0001959173-26-007252", "price_sensitive": false}, {"form": "4", "date": "2026-09-30", "title": "FORM 4", "accession": "0002088549-26-000012", "price_sensitive": false}, {"form": "4", "date": "2026-09-28", "title": "FORM 4", "accession": "0002087127-26-000013", "price_sensitive": false}, {"form": "4", "date": "2026-09-28", "title": "FORM 4", "accession": "0002087126-26-000015", "price_sensitive": false}, {"form": "144", "date": "2026-09-28", "title": "Notice of proposed sale", "accession": "0001959173-26-007122", "price_sensitive": false}, {"form": "144", "date": "2026-09-28", "title": "Notice of proposed sale", "accession": "0001959173-26-007121", "price_sensitive": false}, {"form": "144", "date": "2026-09-24", "title": "Notice of proposed sale", "accession": "0001959173-26-007109", "price_sensitive": false}, {"form": "144", "date": "2026-09-24", "title": "Notice of proposed sale", "accession": "0001959173-26-007102", "price_sensitive": false}]}, "description": "BillionToOne, Inc. trades as BLLN on the NASDAQ and is registered in the United States, classified under Services-Medical Laboratories (SIC 8071). Privy Trades holds 57 insider filings for the company, from November 2025 to October 2026. Across those, 8 insiders disclosed 6 open-market purchases totalling $3.18M against 27 sales totalling $33.66M. The most recent filing on record is dated 28 October 2026.", "exchange": "NASDAQ", "stats": {"buy_n": 6, "buy_sum": 3177960.0, "sell_n": 27, "sell_sum": 33664244.4717, "net": -30486284.471699998, "insiders": 8, "first_date": "2025-11-07", "last_date": "2026-10-28"}, "metrics": {"ticker": "BLLN", "has_prices": true, "as_of": "2026-07-24", "last": 126.08, "prev_close": 128.94, "change": -2.8599999999999994, "change_pct": -0.022180859314409797, "session_volume": 479106.0, "vwap_5": 128.3088123136171, "vwap_20": 124.65341846634153, "vwap_60": 102.90399982765895, "vwap_250": 96.0898625518511, "high_52w": 132.53, "low_52w": 64.03, "avg_volume_20": 643021.25, "sessions": 178, "market_cap": null}, "trades": [{"id": "0002088549-26-000017", "src": "INSIDERS", "ticker": "BLLN", "cik": "2070849", "company": "BillionToOne, Inc.", "company_raw": "BillionToOne, Inc.", "who": "Oguzhan Atay", "who_key": "Atay Oguzhan", "role": "Chairman and CEO, Director", "person_type": "CEO", "person_label": "CEOs", "action": "SELL", "amount": 1298000.0, "score": 0.0, "price_sensitive": true, "cluster": 0, "industry": "Services-Medical Laboratories", "country": "United States", "headline": "Big sell in BLLN \u2014 The CEO offloads $1.3M", "source_url": "https://www.sec.gov/Archives/edgar/data/2088549/000208854926000017/0002088549-26-000017-index.htm", "trade_date": "2026-10-28", "timestamp": "2026-10-28", "mins": 8141}, {"id": "0002088549-26-000015", "src": "INSIDERS", "ticker": "BLLN", "cik": "2070849", "company": "BillionToOne, Inc.", "company_raw": "BillionToOne, Inc.", "who": "Oguzhan Atay", "who_key": "Atay Oguzhan", "role": "Chairman and CEO, Director", "person_type": "CEO", "person_label": "CEOs", "action": "SELL", "amount": 1090574.7214000002, "score": 0.0, "price_sensitive": true, "cluster": 0, "industry": "Services-Medical Laboratories", "country": "United States", "headline": "CEO sells $1.1M of BLLN", "source_url": "https://www.sec.gov/Archives/edgar/data/2088549/000208854926000015/0002088549-26-000015-index.htm", "trade_date": "2026-10-15", "timestamp": "2026-10-15", "mins": 26861}, {"id": "0002070849-26-000074", "src": "INSIDERS", "ticker": "BLLN", "cik": "2070849", "company": "BillionToOne, Inc.", "company_raw": "BillionToOne, Inc.", "who": "Thomas P. 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