Western Alliance Bancorporation
US ˙ NYSE ˙ US9576381092

SecurityWAL / Western Alliance Bancorporation
InstitutionSei Investments Co
Latest Disclosed Ownership62,121 shares
Latest Disclosed Value $ 5,222,537
Sei Investments Co reports 29.03% decrease in ownership of WAL / Western Alliance Bancorporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 62,121 shares of Western Alliance Bancorporation (US:WAL) valued at $5,222,512 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 87,535 shares of Western Alliance Bancorporation. This represents a change in shares of -29.03% during the quarter. The current value of the position is $4,829,908 USD.

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)
2026-02-13 2025-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 62,121 -25,414 -29.03 5,223 -31.20 0.0052
2025-11-13 2025-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 87,535 5,556 6.78 7,591 18.74 0.0082
2025-08-14 2025-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 81,979 -18,832 -18.68 6,393 -17.47 0.0074
2025-05-14 2025-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 100,811 15,989 18.85 7,745 9.32 0.0100
2025-05-13 2025-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 93,089 8,267 7,676 0.0083
2025-02-11 2024-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 84,822 -5,063 -5.63 7,086 -8.86 0.0091
2024-11-12 2024-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 89,885 21,080 30.64 7,774 79.87 0.0101
2024-08-13 2024-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 68,805 -23,852 -25.74 4,322 -27.32 0.0061
2024-05-07 2024-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 92,657 -38,230 -29.21 5,948 -30.94 0.0087
2024-02-14 2023-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 130,887 29,330 28.88 8,611 84.47 0.0138
2023-11-14 2023-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 101,557 69,545 217.25 4,669 300.00 0.0084
2023-08-11 2023-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 32,012 20,985 190.31 1,167 198.47 0.0020
2023-05-12 2023-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 11,027 -129,526 -92.15 392 -95.33 0.0007
2023-02-10 2022-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 140,553 -15,229 -9.78 8,371 -18.26 0.0186
2022-11-14 2022-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 155,782 6,640 4.45 10,241 -2.21 0.0228
2022-08-15 2022-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 149,142 22,945 18.18 10,472 0.31 0.0226
2022-05-13 2022-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 126,197 15,297 13.79 10,440 -12.56 0.0210
2022-02-14 2021-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 110,900 721 0.65 11,940 -0.45 0.0224
2021-11-12 2021-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 110,179 -35,576 -24.41 11,994 -11.42 0.0252
2021-08-06 2021-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 145,755 -9,024 -5.83 13,540 -1.73 0.0300
2021-05-12 2021-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 154,779 -55,601 -26.43 13,778 9.26 0.0347
2021-02-08 2020-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 210,380 47,751 29.36 12,610 145.00 0.0326
2020-12-04 2020-09-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 162,629 -14,375 -8.12 5,147 -22.93 0.0149
2020-11-06 2020-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 163,799 -13,205 5,184 12,481.9194
2020-08-17 2020-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 177,004 -59,911 -25.29 6,678 -7.65 0.0207
2020-08-11 2020-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 329,367 92,452 18,682 50,675.9194
2020-05-14 2020-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 236,915 -90,545 -27.65 7,231 -61.23 0.0266
2020-02-06 2019-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 327,460 6,960 2.17 18,653 26.36 0.0556
2019-11-12 2019-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 320,500 29,290 10.06 14,762 13.35 0.0378
2019-08-14 2019-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 291,210 24,034 9.00 13,023 18.75 0.0425
2019-05-15 2019-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 267,176 49,797 22.91 10,967 -11.18 0.0368
2019-02-13 2018-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 217,379 -7,887 -3.50 12,348 -3.62 0.0440
2018-11-08 2018-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 225,266 -37,742 -14.35 12,812 -13.95 0.0464
2018-08-03 2018-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 263,008 -16,721 -5.98 14,889 -8.41 0.0506
2018-05-11 2018-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 279,729 -51,247 -15.48 16,256 -13.26 0.0623
2018-02-08 2017-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 330,976 59,296 21.83 18,740 29.95 0.0651
2017-11-06 2017-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 271,680 21,332 8.52 14,421 17.08 0.0513
2017-07-31 2017-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 250,348 16,236 6.94 12,317 7.17 0.0491
2017-05-05 2017-03-31 13F WESTERN ALLIANCE BANCORP COM 957638109 234,112 -6,450 -2.68 11,493 -1.92 0.0504
2017-02-02 2016-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 240,562 16,284 7.26 11,718 39.19 0.0567
2016-11-04 2016-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 224,278 -3,813 -1.67 8,419 13.04 0.0428
2016-08-11 2016-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 228,091 18,265 8.70 7,448 6.34 0.0447
2016-05-10 2016-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 209,826 -45,323 -17.76 7,004 -23.45 0.0436
2016-02-03 2015-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 255,149 182,232 249.92 9,150 308.66 0.0558
2015-11-02 2015-09-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 72,917 -11,196 -13.31 2,239 -21.16 0.0206
2015-10-30 2015-09-30 13F WESTERN ALLIANCE BANCORP COM 957638109 72,917 2,240
2015-08-07 2015-06-30 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 84,113 -4,790 -5.39 2,840 7.78 0.0257
2015-08-04 2015-06-30 13F WESTERN ALLIANCE BANCORP COM 957638109 84,113 -4,790 2,840 0.0257
2015-05-14 2015-03-31 13F/A-1 WESTERN ALLIANCE BANCORP COM 957638109 88,903 1,025 1.17 2,635 7.86 0.0229
2015-05-01 2015-03-31 13F WESTBURY BANCORP COM 957638109 88,903 2,635
2015-02-10 2014-12-31 13F WESTERN ALLIANCE BANCORP COM 957638109 87,878 87,878 2,443 0.0216
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.