Western Alliance (WAL) CRO Emily Nachlas Exercises Units, Sells 189 Shares

What Happened
Emily Nachlas, Chief Risk Officer of Western Alliance Bancorporation (WAL), exercised/converted vested derivative units and immediately disposed of the resulting economic shares back to the issuer on September 15, 2026. She converted three lots (72, 53 and 64 units — 189 units total) and the reported disposition price was $79.03 per unit, producing aggregate proceeds of $14,937. The filing shows exercise/conversion (code M) followed by disposition to the issuer (code D).

Key Details

• Transaction date: 2026-09-15; filing date: 2026-09-17 (filing appears timely).
• Shares acquired by conversion: 72, 53, and 64 (total 189).
• Shares disposed to issuer: 72, 53, and 64 at $79.03 each; proceeds listed as $5,690, $4,189, and $5,058 respectively (total $14,937).
• Transaction codes: M = exercise/conversion of derivative; D = disposition to the issuer.
• Shares owned after the transactions: not specified in this Form 4 filing.
• Footnotes: the converted units are cash-settled units (each unit equals one share economically) that vest monthly over 36-month schedules from March 2024, March 2025, and March 2026 (see F1–F4).

Context
The filing indicates these were vested units payable solely in cash (not an open-market sale of previously held unrestricted shares). The pattern — conversion/exercise followed immediately by disposition to the issuer — is consistent with cash settlement or a company withholding/settlement procedure rather than an independent open-market sell. This is a routine insider cash-settlement of vested awards and is informational rather than a clear signal of sentiment.