{"filing":{"accession_number":"0001104659-26-069818","cik":"0001605803","ticker":null,"company_name":"Lattice Strategies Trust","form":"8-K","filing_date":"2026-06-03","report_date":null,"primary_document":"tm2616093d1_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1605803/000110465926069818/tm2616093d1_8k.htm"},"events":[{"id":7081,"run_id":6212,"accession_number":"0001104659-26-069818","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"The filing discloses that Wellington Investment Advisors Holdings, LLP has reached a definitive agreement to acquire Hartford Funds Management Group, Inc. and affiliates from The Hartford. This is a material acquisition transaction expected to close in Q1 2027, with the acquired entity to be integrated into Wellington's U.S. Wealth business. The disclosure explicitly states the transaction has been approved by both parties and describes the post-closing integration and operational structure, which are hallmarks of M\u0026A activity under Item 1.01/2.01.","company_name":"Lattice Strategies Trust","ticker":null,"filing_date":"2026-06-03","form":"8-K","submitted_at":null,"items":[{"id":3861,"accession_number":"0001104659-26-069818","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The filing discloses that Wellington Investment Advisors Holdings, LLP has reached a definitive agreement to acquire Hartford Funds Management Group, Inc. and affiliates from The Hartford. This is a material acquisition transaction expected to close in Q1 2027, with the acquired entity to be integrated into Wellington's U.S. Wealth business. The disclosure explicitly states the transaction has been approved by both parties and describes the post-closing integration and operational structure, which are hallmarks of M\u0026A activity under Item 1.01/2.01.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-04T02:16:57.460745+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":3861,"accession_number":"0001104659-26-069818","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The filing discloses that Wellington Investment Advisors Holdings, LLP has reached a definitive agreement to acquire Hartford Funds Management Group, Inc. and affiliates from The Hartford. This is a material acquisition transaction expected to close in Q1 2027, with the acquired entity to be integrated into Wellington's U.S. Wealth business. The disclosure explicitly states the transaction has been approved by both parties and describes the post-closing integration and operational structure, which are hallmarks of M\u0026A activity under Item 1.01/2.01.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-04T02:16:57.460745+00:00","company_name":"Lattice Strategies Trust","ticker":null,"filing_date":"2026-06-03"}]}