{"schema_version":"ctm-public-research-1.0","id":"airbnb","name":"Airbnb","ticker":"ABNB","sector":"Travel · historical IPO case","description":"A historical bridge from preferred shares to an IPO. Offering price and cash you could actually receive are different things.","coverage_note":"Five filing prices support approximate share-equivalent models. The split is already reflected. B, B-1, D, E and F use reviewed 1:1 mappings. Series C is excluded for its additional conversion adjustment; Seed and A are held back because their coarsely rounded low prices need further precision review.","url":"https://capitaltimemachine.com/private/airbnb","publisher":"CapitalTimeMachine","dataset_revision":"ctm-research-2026-10-01","dataset_reviewed_on":"2026-09-19","feed_released_on":"2026-10-01","methodology_url":"https://capitaltimemachine.com/methodology","terms_url":"https://capitaltimemachine.com/terms","corrections":"mailto:capitaltimemachine@gmail.com","observations":[{"id":"ABNB-B","title":"Series B issuance price","note":"Rounded filing price; the December 2019 table date is not the purchase date. Preferred and listed shares differ in rights.","observation_date":"2019-12-31","date_precision":"day","date_role":"historical_table_snapshot","actual_entry_date":null,"value":"3.31","value_qualifier":"","currency":"USD","value_scope":"per_share_issuance_price","share_class":"Series B preferred","share_basis":"retrospectively_split_restated","confidence_class":"B","verification_status":"primary_verified","checked_on":"2026-09-17","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Note 12: December 31, 2019 preferred-stock table; Notes 2 and 12: split and conversion"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-B"},{"id":"ABNB-B1","title":"Series B-1 issuance price","note":"Rounded filing price; the December 2019 table date is not the purchase date. Preferred and listed shares differ in rights.","observation_date":"2019-12-31","date_precision":"day","date_role":"historical_table_snapshot","actual_entry_date":null,"value":"1.11","value_qualifier":"","currency":"USD","value_scope":"per_share_issuance_price","share_class":"Series B-1 preferred","share_basis":"retrospectively_split_restated","confidence_class":"B","verification_status":"primary_verified","checked_on":"2026-09-17","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Note 12: December 31, 2019 preferred-stock table; Notes 2 and 12: split and conversion"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-B1"},{"id":"ABNB-D","title":"Series D issuance price","note":"Rounded filing price. The table date is not the purchase date; no holding period is inferred.","observation_date":"2019-12-31","date_precision":"day","date_role":"historical_table_snapshot","actual_entry_date":null,"value":"20.36","value_qualifier":"","currency":"USD","value_scope":"per_share_issuance_price","share_class":"Series D preferred","share_basis":"retrospectively_split_restated","confidence_class":"B","verification_status":"primary_verified","checked_on":"2026-09-17","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Note 12: December 31, 2019 preferred-stock table; Notes 2 and 12: split and conversion"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-D"},{"id":"ABNB-E","title":"Series E issuance price","note":"Rounded filing price. The table date is not the purchase date; no holding period is inferred.","observation_date":"2019-12-31","date_precision":"day","date_role":"historical_table_snapshot","actual_entry_date":null,"value":"46.55","value_qualifier":"","currency":"USD","value_scope":"per_share_issuance_price","share_class":"Series E preferred","share_basis":"retrospectively_split_restated","confidence_class":"B","verification_status":"primary_verified","checked_on":"2026-09-17","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Note 12: December 31, 2019 preferred-stock table; Notes 2 and 12: split and conversion"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-E"},{"id":"ABNB-F","title":"Series F preferred","note":"Rounded filing price. The table date is not the purchase date; no holding period is inferred.","observation_date":"2019-12-31","date_precision":"day","date_role":"historical_table_snapshot","actual_entry_date":null,"value":"52.50","value_qualifier":"","currency":"USD","value_scope":"per_share_issuance_price","share_class":"Series F preferred","share_basis":"retrospectively_split_restated","confidence_class":"B","verification_status":"primary_verified","checked_on":"2026-09-16","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Note 12, table as of December 31 2019"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-F"},{"id":"ABNB-OFFER","title":"IPO completed","note":"Class A offer price on completion of the IPO. It is not a market closing price or assumed sale proceeds.","observation_date":"2020-12-14","date_precision":"day","date_role":"offering_completion","value":"68.00","value_qualifier":"","currency":"USD","value_scope":"public_offer_price_per_share","share_class":"Class A common","confidence_class":"A","verification_status":"primary_verified","checked_on":"2026-09-16","source":{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","publisher":"SEC · Airbnb filing","title":"2020 Form 10-K","locator":"Stock Split and Initial Public Offering notes"},"supporting_sources":[],"citation_url":"https://capitaltimemachine.com/private/airbnb#ABNB-OFFER"}],"calculation_options":{"early_stage_assumptions":null,"ipo_offer_models":[{"id":"ABNB-B-IPO","company":"airbnb","start":"ABNB-B","end":"ABNB-OFFER","label":"Series B → IPO offer-price mark","conversion_factor":"1","split_adjustment":"already_reflected_do_not_apply_again","reviewed_on":"2026-09-17","basis_note":"The 2020 Form 10-K restates per-share amounts for the October 2020 split, describes initial 1:1 preferred-to-Class B conversion and identifies extra conversion shares for Series C. D/E/F models assume no holder-specific adjustment. Class B can convert 1:1 to Class A. Offering-price mark only; no sale assumed.","source_url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","source_locators":["Note 2: Stock Split; Initial Public Offering","Note 12: preferred-stock table; Conversion Rights; Common Stock","Risk Factors: lock-up and market standoff restrictions"]},{"id":"ABNB-B1-IPO","company":"airbnb","start":"ABNB-B1","end":"ABNB-OFFER","label":"Series B-1 → IPO offer-price mark","conversion_factor":"1","split_adjustment":"already_reflected_do_not_apply_again","reviewed_on":"2026-09-17","basis_note":"The 2020 Form 10-K restates per-share amounts for the October 2020 split, describes initial 1:1 preferred-to-Class B conversion and identifies extra conversion shares for Series C. D/E/F models assume no holder-specific adjustment. Class B can convert 1:1 to Class A. Offering-price mark only; no sale assumed.","source_url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","source_locators":["Note 2: Stock Split; Initial Public Offering","Note 12: preferred-stock table; Conversion Rights; Common Stock","Risk Factors: lock-up and market standoff restrictions"]},{"id":"ABNB-D-IPO","company":"airbnb","start":"ABNB-D","end":"ABNB-OFFER","label":"Series D → IPO offer-price mark","conversion_factor":"1","split_adjustment":"already_reflected_do_not_apply_again","reviewed_on":"2026-09-17","basis_note":"The 2020 Form 10-K restates per-share amounts for the October 2020 split, describes initial 1:1 preferred-to-Class B conversion and identifies extra conversion shares for Series C. D/E/F models assume no holder-specific adjustment. Class B can convert 1:1 to Class A. Offering-price mark only; no sale assumed.","source_url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","source_locators":["Note 2: Stock Split; Initial Public Offering","Note 12: preferred-stock table; Conversion Rights; Common Stock","Risk Factors: lock-up and market standoff restrictions"]},{"id":"ABNB-E-IPO","company":"airbnb","start":"ABNB-E","end":"ABNB-OFFER","label":"Series E → IPO offer-price mark","conversion_factor":"1","split_adjustment":"already_reflected_do_not_apply_again","reviewed_on":"2026-09-17","basis_note":"The 2020 Form 10-K restates per-share amounts for the October 2020 split, describes initial 1:1 preferred-to-Class B conversion and identifies extra conversion shares for Series C. D/E/F models assume no holder-specific adjustment. Class B can convert 1:1 to Class A. Offering-price mark only; no sale assumed.","source_url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","source_locators":["Note 2: Stock Split; Initial Public Offering","Note 12: preferred-stock table; Conversion Rights; Common Stock","Risk Factors: lock-up and market standoff restrictions"]},{"id":"ABNB-F-IPO","company":"airbnb","start":"ABNB-F","end":"ABNB-OFFER","label":"Series F → IPO offer-price mark","conversion_factor":"1","split_adjustment":"already_reflected_do_not_apply_again","reviewed_on":"2026-09-17","basis_note":"The 2020 Form 10-K restates per-share amounts for the October 2020 split, describes initial 1:1 preferred-to-Class B conversion and identifies extra conversion shares for Series C. D/E/F models assume no holder-specific adjustment. Class B can convert 1:1 to Class A. Offering-price mark only; no sale assumed.","source_url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","source_locators":["Note 2: Stock Split; Initial Public Offering","Note 12: preferred-stock table; Conversion Rights; Common Stock","Risk Factors: lock-up and market standoff restrictions"]}],"valuation_comparisons":[],"user_entered_private_prices":false,"entered_public_price_review":{"company":"airbnb","ticker":"ABNB","issuer_cik":"1559720","model_ids":["ABNB-B-IPO","ABNB-B1-IPO","ABNB-D-IPO","ABNB-E-IPO","ABNB-F-IPO"],"from_date":"2024-06-10","through_date":"2026-09-19","reviewed_on":"2026-09-19","status":"reviewed_user_price_scenario","historical_only":false,"limitation":"Entered price is unverified. Use the actual common-share price on its dated basis, not a dividend-adjusted or retrospectively split-adjusted history.","listed_equivalent_factor":"1","splits":[],"sources":[{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972021000010/airbnb-10k.htm","title":"Original IPO share basis","locator":"Prospectus / offering and capital-stock terms; the existing private-to-IPO model supplies the entry conversion."},{"url":"https://www.sec.gov/Archives/edgar/data/1559720/000155972026000027/abnb-20260630.htm","title":"Issuer 10-Q · 2026-08-06","locator":"Common-stock presentation and corporate-action screening. A missing split keyword alone is not evidence of a complete history."},{"url":"https://www.stocksplithistory.com/?symbol=ABNB","title":"Supplemental split-history screen","locator":"Dated post-IPO corporate actions only. Ticker reuse can introduce unrelated pre-IPO events; those are excluded. No market quote was copied."}],"review_note":"Entry-to-IPO conversion reuses the approved company-specific model. The post-IPO corporate-action screen matches the issuer CIK and excludes reused ticker history predating its IPO. This is a bounded price-only scenario, not a licensed quote or a certified corporate-action feed."},"public_ipo":null},"limitations":["Historical research and hypothetical arithmetic, not live quotes, investment advice or an offer to invest.","Company valuation changes are not shareholder returns. Financing, dilution, security rights and exit access matter.","IPO offer-price marks are not realized sale proceeds; minimum investments and access are not established.","User-entered prices and valuations are assumptions, not sourced observations. Fee and carry treatment is stated by each method; taxes and distributions are excluded.","Selected surviving companies are not representative of private-market outcomes; investments may lose all value."]}