RenaissanceRe founded Nov 1993 in Bermuda by James Stanard, Neill Currie + others post-Hurricane Andrew when Florida property reinsurance capacity collapsed. Capitalized at $141M from USF&G + General Re + Warburg Pincus. Pioneers catastrophe modeling-driven underwriting — uses AIR/RMS/EQECAT cat models as core pricing tool.

RenaissanceRe IPO Jul 1995 at $13.50/share on NYSE; raises $69M. Founded just 18 months prior; one of fastest Bermudian reinsurer IPOs ever. James Stanard CEO leads with catastrophe modeling-first underwriting; RNR pioneers Renaissance Underwriting Managers (RUM) sidecar concept.

RenaissanceRe launches Top Layer Reinsurance Co (joint venture with State Farm) 1999 — sidecar vehicle that brings third-party capital alongside RNR's balance sheet. Pioneers the alternative capital model that becomes industry-defining; later DaVinciRe (PGGM JV 2001), Vermeer (2021), Renaissance Reinsurance Ltd structures.

RenaissanceRe 2005 — James Stanard CEO faces SEC investigation over finite reinsurance accounting; Stanard resigns Nov 2005. Neill Currie becomes CEO. RNR accounting restatement: $54M reduction in net income. Minor scandal vs AIG's 2005 finite reinsurance debacle but demonstrates SEC scrutiny of industry.

Kevin O'Donnell becomes RenaissanceRe CEO Jul 2013 — succeeds Neill Currie (CEO 2005-2013) who succeeded James Stanard. O'Donnell continues RNR's catastrophe model-driven underwriting + alternative capital strategy. Stock 3x's 2013-2025 from $90 to $290+.

RenaissanceRe acquires Platinum Underwriters Mar 2015 for $1.9B cash — adds US casualty reinsurance + Bermuda exposures. Kevin O'Donnell CEO since 2013 executes JV sidecar strategy (DaVinciRe, Vermeer JV with PGGM) — alternative capital + balance sheet equity drive growth.

RenaissanceRe 2017 hurricane season — Harvey, Irma, Maria, California fires drive $135B global insured cat losses. RNR pays $200M+ in claims; demonstrates balance sheet strength. Year tests RNR's cat model + reserve adequacy; emerges as one of best-performing post-2017 reinsurers.

RenaissanceRe acquires Validus Re from AIG May 2023 for $2.985B cash + AIG retains 5% RNR stake. Largest RenRe acquisition; doubles size. Combined RNR becomes one of top-5 global property cat reinsurers. Demonstrates AIG's continued post-bailout simplification + RNR's hard market opportunism.

RenaissanceRe FY2025 — Kevin O'Donnell CEO reports $11B+ premium post-Validus integration; combined ratio 78%. Stock $300+ all-time high. RNR + DaVinciRe + Vermeer JV vehicles remain leading bermudian property cat reinsurance platform. Continues cat model-driven underwriting culture.