{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-212705","form_type":"8-K","ticker":null,"cik":"0000949039","company_name":"DIAMOND OFFSHORE DRILLING, INC.","filed_at":"2024-09-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:16.473562+00:00","generated_at":"2026-05-31T06:32:47.320628+00:00","sec_items":["1.01","1.02","2.01","3.01","3.03","5.03","5.01","5.02","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Noble completes acquisition of Diamond Offshore for $5.65 cash plus 0.2316 shares per DO share","bullets":["Merger closed Sept 4, 2024; each Diamond Offshore share converted into $5.65 cash and 0.2316 Noble ordinary shares.","Diamond Offshore warrants assumed by Noble, exercisable for Merger Consideration through Dec 3, 2024.","Diamond Offshore common stock (DO) delisted from NYSE; company to file Form 15 to suspend SEC reporting.","All Diamond Offshore directors and officers resigned; new directors and officers appointed for surviving entity.","Credit agreement terminated with all obligations paid; supplemental indenture for 8.500% senior secured notes assumed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-212705","json":"https://secwatch.observer/filing/0001193125-24-212705.json","markdown":"https://secwatch.observer/filing/0001193125-24-212705.md","text":"https://secwatch.observer/filing/0001193125-24-212705.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/d886651d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T06:32:47.320628+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"41385d4dae","claim":"Craig Muirhead was appointed as Director at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"63a7ef4d16","claim":"Jennie Howard was appointed as Director at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"70ebfa8186","claim":"Craig Muirhead was appointed as Treasurer at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Treasurer"}],"fact_type":"executive_change"},{"claim_id":"73153e26d0","claim":"Jennie Howard was appointed as Secretary at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Secretary"}],"fact_type":"executive_change"},{"claim_id":"86df2cdf66","claim":"Richard Barker was appointed as Director at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"abf74e98bb","claim":"Richard Barker was appointed as President at DIAMOND OFFSHORE DRILLING, INC..","evidence_excerpt":"At the Effective Time, Richard Barker, Jennie Howard and Craig Muirhead became the directors of Merger Sub 2, as the surviving entity in the Second Merger, and Mr. Barker became President, Ms. Howard became Secretary and Mr. Muirhead became Treasurer of Merger Sub 2, as the surviving entity in the Second Merger.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President"}],"fact_type":"executive_change"},{"claim_id":"11e61a337fcd8ab386fb9539c61e657e0825c282","claim":"DIAMOND OFFSHORE DRILLING, INC. underwent a change of control involving Noble Corporation plc for $5.65 in cash, without interest, plus 0.2316 Noble Ordinary Shares per share (closed 2024-09-04).","evidence_excerpt":"in accordance with Section 262 of the Delaware General Corporation Law, was converted into the right to receive the following (collectively, the “Merger Consideration”): (a) $5.65 in cash, without interest, payable to the holder of each share of Diamond Offshore Common Stock (the “Per Share Cash Consideration”); (b) 0.2316 (the “Exchange Ratio”) of validly","evidence_source":"SEC 8-K Item 2.01/5.01","evidence_url":"https://www.sec.gov/Archives/edgar/data/949039/000119312524212705/0001193125-24-212705-index.htm","confidence":0.9,"family_label":"M&A Transactions","details":[{"label":"Action","value":"change of control"},{"label":"Counterparty","value":"Noble Corporation plc"},{"label":"Consideration","value":"$5.65 in cash, without interest, plus 0.2316 Noble Ordinary Shares per share"},{"label":"Closing","value":"2024-09-04"}],"fact_type":"ma_transaction"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}