{"data":[{"accessionNo":"0002100121-26-000964","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings Inc","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-06-30","reportingPerson":"Vanguard Portfolio Management","reportingCik":null,"personType":"IA","sharesOwned":2211589,"percentOfClass":4.87,"filedAt":"2026-07-31"},{"accessionNo":"0000935836-26-000250","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Jason E. Moment","reportingCik":null,"personType":"HC,IN","sharesOwned":2950568,"percentOfClass":6.5,"filedAt":"2026-05-14"},{"accessionNo":"0000935836-26-000250","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"William F. Duhamel, Jr.","reportingCik":null,"personType":"HC,IN","sharesOwned":2950568,"percentOfClass":6.5,"filedAt":"2026-05-14"},{"accessionNo":"0000935836-26-000250","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Route One Investment Company, LLC","reportingCik":null,"personType":"HC,OO","sharesOwned":2950568,"percentOfClass":6.5,"filedAt":"2026-05-14"},{"accessionNo":"0000935836-26-000250","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"ROIC, LLC","reportingCik":null,"personType":"HC,OO","sharesOwned":2950568,"percentOfClass":6.5,"filedAt":"2026-05-14"},{"accessionNo":"0000935836-26-000250","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Route One Investment Company, L.P.","reportingCik":null,"personType":"IA,PN","sharesOwned":2950568,"percentOfClass":6.5,"filedAt":"2026-05-14"},{"accessionNo":"0000905729-26-000103","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Gerald W. Hakala","reportingCik":null,"personType":"HC,IN","sharesOwned":1193067,"percentOfClass":2.63,"filedAt":"2026-05-14"},{"accessionNo":"0000905729-26-000103","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Jeffrey A. Hakala","reportingCik":null,"personType":"HC,IN","sharesOwned":1193067,"percentOfClass":2.63,"filedAt":"2026-05-14"},{"accessionNo":"0000905729-26-000103","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Clarkston Companies, Inc.","reportingCik":null,"personType":"HC,CO","sharesOwned":1193067,"percentOfClass":2.63,"filedAt":"2026-05-14"},{"accessionNo":"0000905729-26-000103","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Clarkston Capital Partners, LLC","reportingCik":null,"personType":"IA","sharesOwned":1193067,"percentOfClass":2.63,"filedAt":"2026-05-14"},{"accessionNo":"0002100121-26-000554","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001530950","issuerName":"Post Holdings Inc","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Vanguard Portfolio Management","reportingCik":null,"personType":"IA","sharesOwned":2460114,"percentOfClass":5.12,"filedAt":"2026-04-29"},{"accessionNo":"0000354204-26-000574","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001530950","issuerName":"Post Holdings Inc","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-31","reportingPerson":"Dimensional Fund Advisors LP","reportingCik":null,"personType":"IA","sharesOwned":3071875,"percentOfClass":6.4,"filedAt":"2026-04-09"},{"accessionNo":"0000102909-26-002030","formType":"SCHEDULE 13G/A","amendmentNo":14,"issuerCik":"0001530950","issuerName":"Post Holdings Inc","ticker":"POST","cusip":"737446104","securityClass":"Common Stock","eventDate":"2026-03-13","reportingPerson":"The Vanguard Group","reportingCik":null,"personType":"IA","sharesOwned":0,"percentOfClass":0,"filedAt":"2026-03-27"},{"accessionNo":"0001052058-26-000003","formType":"SCHEDULE 13D/A","amendmentNo":4,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":null,"securityClass":"Common Stock, $0.01 par value","eventDate":"2026-03-04","reportingPerson":"William P. Stiritz","reportingCik":"0001052058","personType":"IN","sharesOwned":4885468,"percentOfClass":10.3,"filedAt":"2026-03-05"},{"accessionNo":"0001530950-25-000246","formType":"SCHEDULE 13D/A","amendmentNo":3,"issuerCik":"0001530950","issuerName":"Post Holdings, Inc.","ticker":"POST","cusip":null,"securityClass":"Common Stock, $0.01 par value","eventDate":"2025-10-15","reportingPerson":"William P. Stiritz","reportingCik":"0001052058","personType":"IN","sharesOwned":4882968,"percentOfClass":9.3,"filedAt":"2025-10-15"},{"accessionNo":"0000354204-25-001326","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001530950","issuerName":"Post Holdings Inc","ticker":"POST","cusip":null,"securityClass":"Common Stock","eventDate":"2025-09-30","reportingPerson":"Dimensional Fund Advisors LP","reportingCik":null,"personType":"IA","sharesOwned":2812423,"percentOfClass":5.2,"filedAt":"2025-10-09"}],"updatedAt":"2026-10-15T03:01:15.552Z","source":"xoomar.com","docs":"https://xoomar.com/markets/api","license":"https://xoomar.com/terms","attribution":"Credit XOOMAR with a link to the dataset page on xoomar.com when you republish this data","meta":{"source":"SEC","sourceAttribution":"Schedule 13D and 13G data: SEC.","notice":"10 requests a minute without a key, 30 with a free key. Get a free key at https://xoomar.com/signup?utm_source=api, register your app at https://xoomar.com/developers/register?utm_source=api, and credit the data as \"Data: XOOMAR\" together with the sourceAttribution line."}}