{"cik":"0001991131","entityType":"other","sic":"","sicDescription":"","ownerOrg":"","insiderTransactionForOwnerExists":1,"insiderTransactionForIssuerExists":0,"name":"Whalen Amanda","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":null,"stateOfIncorporation":"","stateOfIncorporationDescription":"","addresses":{"mailing":{"street1":"KLAVIYO, INC.","street2":"125 SUMMER STREET, 6TH FLOOR","city":"BOSTON","stateOrCountry":"MA","zipCode":"02110","stateOrCountryDescription":"MA","isForeignLocation":0,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":null,"street2":null,"city":null,"stateOrCountry":null,"zipCode":null,"stateOrCountryDescription":null,"isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":null,"flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001950047-26-009637","0001470831-26-000839","0001193125-26-318111","0001470831-26-000720","0001470831-26-000561","0001950047-26-006312","0001193125-26-239816","0001470831-26-000455","0001470831-26-000380","0001950047-26-003558","0001470831-26-000270","0001193125-26-091539","0001470831-26-000157","0001470831-26-000041","0001470831-25-000444","0001950047-25-010503","0001470831-25-000332","0001950047-25-008876","0001470831-25-000254","0001470831-25-000197","0001470831-25-000142","0001470831-25-000082","0001950047-25-004974","0001835830-25-000070","0001835830-25-000055","0001835830-25-000034","0001950047-25-002435","0001835830-25-000032","0001835830-25-000021","0001835830-25-000007","0001835830-25-000001","0001950047-25-000199","0001835830-24-000120","0001835830-24-000118","0001835830-24-000112","0001950047-24-008765","0001835830-24-000099","0001835830-24-000093","0001950047-24-006846","0001835830-24-000085","0001991131-24-000003","0001950047-24-005908","0001835830-24-000057","0001835830-24-000036","0001835830-24-000011","0001835830-24-000007","0001835830-23-000010","0001628280-23-032663"],"filingDate":["2026-09-17","2026-08-18","2026-07-27","2026-07-17","2026-06-18","2026-06-18","2026-05-26","2026-05-18","2026-04-17","2026-04-16","2026-03-13","2026-03-04","2026-02-18","2026-01-16","2025-12-19","2025-12-18","2025-11-18","2025-11-14","2025-10-10","2025-09-12","2025-08-19","2025-07-14","2025-07-11","2025-06-13","2025-05-16","2025-04-11","2025-04-11","2025-03-18","2025-02-19","2025-02-04","2025-01-10","2025-01-10","2024-12-13","2024-12-09","2024-11-19","2024-11-18","2024-10-04","2024-09-06","2024-09-06","2024-08-16","2024-08-09","2024-08-09","2024-05-17","2024-04-17","2024-02-20","2024-02-16","2023-11-17","2023-09-20"],"reportDate":["","2026-08-14","2026-07-24","2026-07-16","2026-06-18","","2026-05-21","2026-05-14","2026-04-15","","2026-03-12","2026-03-01","2026-02-13","2026-01-15","2025-12-18","","2025-11-14","","2025-10-10","2025-09-12","2025-08-15","2025-07-11","","2025-06-13","2025-05-15","2025-04-11","","2025-03-14","2025-02-15","2025-02-03","2025-01-10","","2024-12-13","2024-12-06","2024-11-15","","2024-10-04","2024-09-06","","2024-08-15","2024-08-09","","2024-05-15","2024-04-15","2024-02-15","2024-02-15","2023-11-15","2023-09-20"],"acceptanceDateTime":["2026-09-17T20:33:15.000Z","2026-08-19T00:02:54.000Z","2026-07-27T20:15:25.000Z","2026-07-18T00:01:17.000Z","2026-06-19T00:08:45.000Z","2026-06-18T20:23:38.000Z","2026-05-26T22:10:35.000Z","2026-05-19T00:08:41.000Z","2026-04-18T00:10:58.000Z","2026-04-16T20:11:06.000Z","2026-03-13T23:57:52.000Z","2026-03-04T21:15:11.000Z","2026-02-18T21:12:33.000Z","2026-01-16T21:06:01.000Z","2025-12-19T21:06:25.000Z","2025-12-18T21:20:40.000Z","2025-11-18T21:07:10.000Z","2025-11-14T21:30:52.000Z","2025-10-10T21:36:15.000Z","2025-09-12T22:10:00.000Z","2025-08-20T00:51:10.000Z","2025-07-14T20:09:04.000Z","2025-07-11T20:17:43.000Z","2025-06-13T22:55:37.000Z","2025-05-17T00:41:31.000Z","2025-04-11T23:10:35.000Z","2025-04-11T20:16:55.000Z","2025-03-18T22:57:04.000Z","2025-02-19T22:51:24.000Z","2025-02-04T21:26:59.000Z","2025-01-10T23:58:35.000Z","2025-01-10T21:21:27.000Z","2024-12-14T01:49:12.000Z","2024-12-09T22:27:18.000Z","2024-11-19T23:09:37.000Z","2024-11-18T22:14:10.000Z","2024-10-04T23:00:28.000Z","2024-09-07T00:13:26.000Z","2024-09-06T20:18:38.000Z","2024-08-16T23:45:06.000Z","2024-08-09T23:32:58.000Z","2024-08-09T20:10:32.000Z","2024-05-17T20:34:03.000Z","2024-04-17T20:22:28.000Z","2024-02-21T02:23:51.000Z","2024-02-16T21:50:03.000Z","2023-11-17T22:01:48.000Z","2023-09-20T20:35:17.000Z"],"act":["","34","34","34","34","","34","34","34","","34","34","34","34","34","","34","","34","34","34","34","","34","34","34","","34","34","34","34","","34","34","34","","34","34","","34","34","","34","34","34","34","34","34"],"form":["144","4","4","4","4","144","4","4","4","144","4","3","4","4","4","144","4","144","4","4","4","4","144","4","4","4","144","4","4","4","4","144","4","4","4","144","4","4","144","4","4","144","4","4","4/A","4","4","3"],"fileNumber":["","001-41806","001-35873","001-41806","001-41806","","001-35873","001-41806","001-41806","","001-41806","001-35873","001-41806","001-41806","001-41806","","001-41806","","001-41806","001-41806","001-41806","001-41806","","001-41806","001-41806","001-41806","","001-41806","001-41806","001-41806","001-41806","","001-41806","001-41806","001-41806","","001-41806","001-41806","","001-41806","001-41806","","001-41806","001-41806","001-41806","001-41806","001-41806","001-41806"],"filmNumber":["","261292608","261205904","261184944","261104548","","261021499","26995587","26873067","","26754030","26721443","26648407","26539492","251587566","","251494655","","251388848","251312655","251233608","251121824","","251048060","25961250","25833883","","25750235","25642082","25588663","25524326","","241549875","241536392","241477619","","241355892","241285646","","241217963","241194382","","24960404","24851346","24656177","24649140","231419746","231266862"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"core_type":["144","4","4","4","4","144","4","4","4","144","4","3","4","4","4","144","4","144","4","4","4","4","144","4","4","4","144","4","4","4","4","144","4","4","4","144","4","4","144","4","4","144","4","4","4/A","4","4","3"],"size":[7002,7636,6289,6008,6008,6287,6026,15401,14771,6288,7593,14715,17186,11873,7593,6279,17189,6842,11876,9947,11801,11356,6286,9959,11796,11882,6292,9071,9680,9527,11880,7723,9950,15329,11794,6294,9952,11870,5421,9674,9848,4862,9546,5409,9839,9506,9388,13730],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[0,0,0,0,0,0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["xsl144X01/primary_doc.xml","xslF345X06/wk-form4_1787097772.xml","xslF345X06/ownership.xml","xslF345X06/wk-form4_1784332874.xml","xslF345X06/wk-form4_1781827722.xml","xsl144X01/primary_doc.xml","xslF345X06/ownership.xml","xslF345X06/wk-form4_1779149319.xml","xslF345X06/wk-form4_1776471055.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1773446269.xml","xslF345X02/ownership.xml","xslF345X05/wk-form4_1771449150.xml","xslF345X05/wk-form4_1768597559.xml","xslF345X05/wk-form4_1766178380.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1763500027.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1760132172.xml","xslF345X05/wk-form4_1757714997.xml","xslF345X05/wk-form4_1755651065.xml","xslF345X05/wk-form4_1752523733.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1749855331.xml","xslF345X05/wk-form4_1747442485.xml","xslF345X05/wk-form4_1744413027.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1742338617.xml","xslF345X05/wk-form4_1740005478.xml","xslF345X05/wk-form4_1738704413.xml","xslF345X05/wk-form4_1736553508.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1734140939.xml","xslF345X05/wk-form4_1733783231.xml","xslF345X05/wk-form4_1732057767.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1728082822.xml","xslF345X05/wk-form4_1725668000.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1723851900.xml","xslF345X05/wk-form4_1723246372.xml","xsl144X01/primary_doc.xml","xslF345X05/wk-form4_1715978017.xml","xslF345X05/wk-form4_1713385338.xml","xslF345X05/wk-form4a_1708482199.xml","xslF345X05/wk-form4_1708120193.xml","xslF345X05/wk-form4_1700258496.xml","xslF345X02/wk-form3_1695242110.xml"],"primaryDocDescription":["","FORM 4","4","FORM 4","FORM 4","","4","FORM 4","FORM 4","","FORM 4","3","FORM 4","FORM 4","FORM 4","","FORM 4","","FORM 4","FORM 4","FORM 4","FORM 4","","FORM 4","FORM 4","FORM 4","","FORM 4","FORM 4","FORM 4","FORM 4","","FORM 4","FORM 4","FORM 4","","FORM 4","FORM 4","","FORM 4","FORM 4","","FORM 4","FORM 4","FORM 4/A","FORM 4","FORM 4","FORM 3"]},"files":[]}}