Western Alliance Bancorporation
MX ˙ BMV ˙ US9576381092
SecurityMX:WAL / Western Alliance Bancorporation
InstitutionPrelude Capital Management, Llc
Latest Disclosed Ownership4,693 shares
Latest Disclosed Value $ 332,499
Prelude Capital Management, Llc reports 90.54% increase in ownership of WAL / Western Alliance Bancorporation

On May 15, 2026 - Prelude Capital Management, Llc filed a 13F-HR form disclosing ownership of 4,693 shares of Western Alliance Bancorporation (MX:WAL) valued at $332,499 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,463 shares of Western Alliance Bancorporation. This represents a change in shares of 90.54% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 4,693 2,230 90.54 332 60.39 0.0254
2026-02-17 2025-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 2,463 -1,799 -42.21 207 -43.90 0.0152
2025-11-14 2025-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 4,262 4,262 370 0.0288
2023-08-14 2023-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -7,721 -100.00 0 -100.00
2023-06-01 2023-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 7,721 7,721 274 0.0164
2023-05-15 2023-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 7,721 7,721 274 0.0089
2022-11-14 2022-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -19,972 -100.00 0 -100.00
2022-08-24 2022-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 19,972 -602 -2.93 1,410 -17.25 0.0401
2022-08-15 2022-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 19,972 -602 1,410 0.0401
2022-05-16 2022-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 20,574 -6,323 -23.51 1,704 -41.14 0.0490
2022-02-14 2021-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 26,897 -3,144 -10.47 2,895 -11.44 0.0742
2021-11-15 2021-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 30,041 -360 -1.18 3,269 15.80 0.0836
2021-08-16 2021-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 30,401 9,225 43.56 2,823 41.15 0.0839
2021-05-17 2021-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 21,176 17,009 408.18 2,000 700.00 0.0515
2021-02-16 2020-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 4,167 4,167 250 0.0064
2020-08-14 2020-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -6,406 -100.00 0 -100.00
2020-05-15 2020-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 6,406 -642 -9.11 196 -51.24 0.0131
2020-02-14 2019-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 7,048 2,123 43.11 402 77.09 0.0153
2019-11-14 2019-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 4,925 4,515 1,101.22 227 1,161.11 0.0102
2019-08-14 2019-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 410 -428 -51.07 18 -47.06 0.0009
2019-05-15 2019-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 838 692 473.97 34 466.67 0.0019
2019-02-14 2018-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 146 146 6 0.0004
2018-11-14 2018-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -241 -100.00 0 -100.00
2018-08-14 2018-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 241 37 18.14 14 16.67 0.0009
2018-05-15 2018-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 204 204 12 0.0009
2014-08-14 2014-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -1,400 -100.00 0 -100.00
2014-05-15 2014-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 1,400 910 185.71 34 183.33 0.0046
2014-02-14 2013-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 490 490 12 0.0020
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.