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📋 '''Tail coverage (M&A)''' is an extended reporting period endorsement purchased in connection with a [[Definition:Insurance mergers and acquisitions (M&A) | merger or acquisition]] that allows [[Definition:Claims | claims]] arising from pre-closing acts to be reported after a [[Definition:Claims-made policy | claims-made policy]] has been cancelled or non-renewed as a result of the transaction. The most common application involves [[Definition:Directors and officers liability insurance (D&O) | directors and officers (D&O) liability insurance]]: when a company is acquired, its existing D&O policy typically terminates, but the directors and officers who served before the deal still face exposure from lawsuits filed after closing. Tail coverage — sometimes called a "run-off" policy — fills this gap by keeping the reporting window open, usually for three to six years.

⏳ In practice, the obligation to procure tail coverage is negotiated as part of the [[Definition:Stock purchase agreement | acquisition agreement]]. The seller's board of directors often insists on tail coverage as a condition of approving the deal, and the cost is either borne by the target company pre-closing or factored into the transaction economics. The tail endorsement attaches to the existing policy's terms, limits, and retentions — no new [[Definition:Underwriting | underwriting]] occurs, and coverage applies only to wrongful acts that took place during the original policy period. For [[Definition:Insurance carrier | insurance company]] acquisitions specifically, tail coverage extends beyond D&O to include [[Definition:Errors and omissions insurance (E&O) | errors and omissions (E&O)]] policies that protect former executives against [[Definition:Professional liability | professional liability]] claims tied to pre-closing [[Definition:Underwriting | underwriting]] or [[Definition:Claims management | claims-handling]] decisions.

🛡️ Neglecting tail coverage in an insurance M&A context can leave former directors, officers, and key employees personally exposed to litigation at exactly the moment they lose the corporate infrastructure that would have defended them. Shareholder lawsuits challenging the sale price, [[Definition:Regulatory action | regulatory enforcement actions]] relating to pre-deal conduct, and [[Definition:Policyholder | policyholder]] suits alleging mismanagement of [[Definition:Loss reserves | reserves]] are all realistic scenarios. Sophisticated deal counsel treats tail coverage as a non-negotiable element of transaction planning — and buyers who resist providing it may find that qualified board members and executives are unwilling to remain through the transition, undermining the very value the acquisition was designed to capture.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Directors and officers liability insurance (D&O)]]
* [[Definition:Claims-made policy]]
* [[Definition:Run-off insurance]]
* [[Definition:Errors and omissions insurance (E&O)]]
* [[Definition:Side A DIC insurance]]
* [[Definition:Extended reporting period (ERP)]]
{{Div col end}}

Definition:Tail coverage (M&A) - Revision history

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