Western Alliance Bancorporation
MX ˙ BMV ˙ US9576381092
SecurityMX:WAL / Western Alliance Bancorporation
InstitutionUBS Group AG
Latest Disclosed Ownership433,742 shares
Latest Disclosed Value $ 30,730,621
UBS Group AG ownership in WAL / Western Alliance Bancorporation

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 433,742 shares of Western Alliance Bancorporation (MX:WAL) valued at $30,730,621 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 341,359 shares of Western Alliance Bancorporation. This represents a change in shares of 27.06% during the quarter.

UBS Group AG has a history of taking positions in derivatives of the underlying security (WAL) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:WAL / Western Alliance Bancorporation Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 433,742 92,383 27.06 30,731 7.08 0.0046
2026-01-29 2025-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 341,359 -215,627 -38.71 28,698 -40.59 0.0047
2025-11-13 2025-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 556,986 -299,675 -34.98 48,302 -27.70 0.0076
2025-08-14 2025-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 856,661 344,871 67.39 66,802 69.89 0.0116
2025-05-13 2025-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 511,790 118,242 30.05 39,321 19.60 0.0072
2025-02-14 2024-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 393,548 32,417 8.98 32,877 5.26 0.0061
2024-11-14 2024-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 361,131 147,177 68.79 31,234 132.40 0.0068
2024-08-14 2024-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 213,954 -9,805 -4.38 13,441 -6.43 0.0033
2024-05-13 2024-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 223,759 98,350 78.42 14,363 74.10 0.0036
2024-02-09 2023-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 125,409 53,906 75.39 8,251 151.07 0.0025
2023-11-09 2023-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 71,503 -81,261 -53.19 3,287 -41.02 0.0011
2023-08-11 2023-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 152,764 -13,296 -8.01 5,571 -5.59 0.0019
2023-05-12 2023-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 166,060 65,190 64.63 5,902 -1.76 0.0022
2023-02-08 2022-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 100,870 16,631 19.74 6,008 8.49 0.0022
2022-11-10 2022-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 84,239 -20,360 -19.46 5,537 -25.02 0.0024
2022-08-10 2022-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 104,599 -10,718 -9.29 7,385 -22.67 0.0030
2022-05-16 2022-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 115,317 -5,793 -4.78 9,550 -26.75 0.0032
2022-02-14 2021-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 121,110 -6,677 -5.23 13,038 -6.24 0.0037
2021-11-15 2021-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 127,787 -64,832 -33.66 13,906 -22.25 0.0044
2021-08-13 2021-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 192,619 45,469 30.90 17,885 28.70 0.0058
2021-05-12 2021-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 147,150 72,398 96.85 13,897 210.13 0.0046
2021-02-11 2020-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 74,752 -89,326 -54.44 4,481 -13.63 0.0015
2020-11-12 2020-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 164,078 25,277 18.21 5,188 -1.31 0.0020
2020-07-31 2020-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 138,801 47,064 51.30 5,257 87.22 0.0022
2020-05-01 2020-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 91,737 -1,547 -1.66 2,808 -47.19 0.0013
2020-02-14 2019-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 93,284 -51,210 -35.44 5,317 -20.14 0.0019
2019-11-14 2019-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 144,494 3,696 2.63 6,658 5.75 0.0026
2019-08-14 2019-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 140,798 -17,967 -11.32 6,296 -3.38 0.0024
2019-05-14 2019-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 158,765 52,423 49.30 6,516 55.18 0.0027
2019-02-14 2018-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 106,342 -32,175 -23.23 4,199 -46.71 0.0019
2018-11-14 2018-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 138,517 15,278 12.40 7,880 12.94 0.0031
2018-08-14 2018-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 123,239 -15,864 -11.40 6,977 -13.69 0.0030
2018-05-15 2018-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 139,103 -57,501 -29.25 8,084 -27.38 0.0035
2018-02-14 2017-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 196,604 67,626 52.43 11,132 62.58 0.0046
2017-11-14 2017-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 128,978 59,579 85.85 6,847 100.50 0.0032
2017-11-14 2017-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 69,399 17,467 33.63 3,415 33.97 0.0018
2017-08-14 2017-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 69,399 17,467 3,415
2017-11-14 2017-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 51,932 21,170 68.82 2,549 70.16 0.0014
2017-05-12 2017-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 51,932 21,170 2,549
2017-02-14 2016-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 30,762 2,316 8.14 1,498 40.26 0.0008
2016-11-14 2016-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 28,446 -76,574 -72.91 1,068 -68.85 0.0006
2016-08-12 2016-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 105,020 69,154 192.81 3,429 186.47 0.0022
2016-05-12 2016-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 35,866 -12,411 -25.71 1,197 -30.85 0.0008
2016-02-16 2015-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 48,277 10,372 27.36 1,731 48.84 0.0011
2015-11-13 2015-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 37,905 -35,253 -48.19 1,163 -52.93 0.0008
2015-08-14 2015-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 73,158 61,788 543.43 2,471 633.23 0.0016
2015-05-14 2015-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 11,370 -4,907 -30.15 337 -25.61 0.0002
2015-02-17 2014-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 16,277 16,277 453 0.0003
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-01-29 2025-12-31 13F WESTERN ALLIANCE BANCORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-13 2025-09-30 13F WESTERN ALLIANCE BANCORP COM Put 2,800 243 n/a n/a n/a
2025-08-14 2025-06-30 13F WESTERN ALLIANCE BANCORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-13 2025-03-31 13F WESTERN ALLIANCE BANCORP COM Put 9,900 761 n/a n/a n/a
2024-05-13 2024-03-31 13F WESTERN ALLIANCE BANCORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F WESTERN ALLIANCE BANCORP COM Put 28,200 1,855 n/a n/a n/a
2019-02-14 2018-12-31 13F WESTERN ALLIANCE BANCORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F WESTERN ALLIANCE BANCORP COM Put 800 46 n/a n/a n/a
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.