Western Alliance Bancorporation
MX ˙ BMV ˙ US9576381092
SecurityMX:WAL / Western Alliance Bancorporation
InstitutionTwinbeech Capital Lp
Latest Disclosed Ownership21,699 shares
Latest Disclosed Value $ 1,537,374
Twinbeech Capital Lp ownership in WAL / Western Alliance Bancorporation

On May 15, 2026 - Twinbeech Capital Lp filed a 13F-HR form disclosing ownership of 21,699 shares of Western Alliance Bancorporation (MX:WAL) valued at $1,537,374 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 14, 2024 disclosing 0 shares of Western Alliance Bancorporation.

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.

Upgrade to unlock premium data and export to Excel .

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 21,699 21,699 1,537 0.1593
2024-08-14 2024-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -7,234 -100.00 0 -100.00
2024-05-15 2024-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 7,234 7,234 464 0.0096
2024-02-14 2023-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -220,848 -100.00 0 -100.00
2023-11-14 2023-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 220,848 -57,028 -20.52 10,152 0.18 0.1950
2023-08-14 2023-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 277,876 277,876 10,134 0.2001
2023-05-15 2023-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -200,631 -100.00 0 -100.00
2023-02-14 2022-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 200,631 134,800 204.77 11,950 176.09 0.2270
2022-11-14 2022-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 65,831 65,831 4,328 0.1142
2022-08-15 2022-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -48,911 -100.00 0 -100.00
2022-05-16 2022-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 48,911 32,437 196.90 4,051 128.48 0.1783
2022-02-14 2021-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 16,474 16,474 1,773 0.1010
2021-11-15 2021-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -19,008 -100.00 0 -100.00
2021-08-16 2021-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 19,008 19,008 1,765 0.2140
2021-02-16 2020-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 0 -25,495 -100.00 0 -100.00
2020-11-16 2020-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 25,495 25,495 806 0.1747
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.