secwatch.observer — SEC 8-K summary ====================================== Issuer: ERP OPERATING LTD PARTNERSHIP (—) CIK: 0000931182 Form: 8-K Filed at: 2026-08-17T20:01:49+00:00 Accession: 0001140361-26-033377 Event type: m_and_a Sentiment: neutral Materiality: 1.00 Item codes: 2.01, 3.03, 5.03, 5.02, 7.01, 9.01, 1.01 LLM model: deepseek-v4-flash:cloud@v2 Equity Residential closes AvalonBay merger, renames to Vivmark Residential, ticker VMRK -------------------------------------------------------------------------------- - Merger closed Aug 17, 2026; AvalonBay shareholders receive 2.793 Vivmark shares per share; ~400M shares issued. - Company renamed Vivmark Residential; ticker changes to VMRK on NYSE effective Aug 18, 2026. - Board expanded to 14 trustees, 7 from each legacy board; Stephen E. Sterrett named Chairman. - Benjamin W. Schall (ex-AvalonBay CEO) becomes President & CEO; CFO Kevin P. O'Shea, COO Sean J. Breslin, CDO Matthew H. Birenbaum from AvalonBay. - AvalonBay audited and unaudited financial statements and pro forma financials included as exhibits. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/931182/000114036126033377/0001140361-26-033377-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/906107/000114036126033377/ef20080318_8k.htm HTML page: https://secwatch.observer/filing/0001140361-26-033377 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer