N.Y.People moves
Simpson Thacher hires six Weil partners for sponsor and asset-manager deals
Simpson Thacher & Bartlett said Brian Parness, Simon Saitowitz, Andrew Nichol, Corey Dietrich, and Alexander Miachika joined as partners and Charles Cooper-Isow will join, expanding asset-management M&A, GP-stakes, and secondaries work across New York and London. Nonbillable reported the six-partner Weil move on October 2, 2026, with Parness leading a Sponsor Transactions and Advisory Practice.
Announcement (Simpson Thacher) → · Nonbillable
Key points
- Five Weil partners joined Simpson Thacher and a sixth, Charles Cooper-Isow, will join.Simpson ThacherNonbillable
- Brian Parness will lead the firm's Sponsor Transactions and Advisory Practice covering asset-manager M&A, GP stakes, partnerships, and secondary liquidity.Simpson ThacherNonbillable
- London secondaries partners Simon Saitowitz and Charles Cooper-Isow are included; they had joined Weil from Kirkland in April.Nonbillable
- New York joiners also include Andrew Nichol, Corey Dietrich, and Alexander Miachika.Simpson ThacherNonbillable
- Nonbillable said the announcement coincided with Weil confirming other London departures, including finance head Tom Richards.Nonbillable