Pinnacle West Capital Corporation
US ˙ NYSE ˙ US7234841010

SecurityPNW / Pinnacle West Capital Corporation
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership1,227,848 shares
Latest Disclosed Value $ 123,705,686
Squarepoint Ops LLC reports 10.96% increase in ownership of PNW / Pinnacle West Capital Corporation

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 1,227,848 shares of Pinnacle West Capital Corporation (US:PNW) valued at $123,705,686 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,106,609 shares of Pinnacle West Capital Corporation. This represents a change in shares of 10.96% during the quarter. The current value of the position is $122,035,813 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)
2026-05-15 2026-03-31 13F PINNACLE WEST CAP COM 723484101 1,227,848 121,239 10.96 123,706 26.03 0.1453
2026-02-13 2025-12-31 13F PINNACLE WEST CAP COM 723484101 1,106,609 388,325 54.06 98,156 52.41 0.1044
2025-11-14 2025-09-30 13F PINNACLE WEST CAP COM 723484101 718,284 90,237 14.37 64,401 14.61 0.0647
2025-08-27 2025-06-30 13F/A-1 PINNACLE WEST CAP COM 723484101 628,047 -24,925 -3.82 56,191 -9.65 0.0584
2025-08-14 2025-06-30 13F PINNACLE WEST CAP COM 723484101 628,047 -24,925 56,191 0.0584
2025-08-27 2025-03-31 13F/A-1 PINNACLE WEST CAP COM 723484101 652,972 236,260 56.70 62,196 76.07 0.0755
2025-05-15 2025-03-31 13F PINNACLE WEST CAP COM 723484101 652,972 236,260 62,196 0.0755
2025-02-14 2024-12-31 13F PINNACLE WEST CAP COM 723484101 416,712 3,289 0.80 35,325 -3.55 0.0348
2024-11-14 2024-09-30 13F PINNACLE WEST CAP COM 723484101 413,423 84,858 25.83 36,625 45.95 0.0573
2024-08-14 2024-06-30 13F PINNACLE WEST CAP COM 723484101 328,565 -235,715 -41.77 25,096 -40.49 0.0415
2024-05-15 2024-03-31 13F PINNACLE WEST CAP COM 723484101 564,280 252,253 80.84 42,169 88.12 0.0726
2024-02-14 2023-12-31 13F PINNACLE WEST CAP COM 723484101 312,027 158,506 103.25 22,416 98.18 0.0424
2023-11-14 2023-09-30 13F PINNACLE WEST CAP COM 723484101 153,521 92,772 152.71 11,311 128.60 0.0279
2023-08-14 2023-06-30 13F PINNACLE WEST CAP COM 723484101 60,749 26,707 78.45 4,949 83.46 0.0152
2023-05-15 2023-03-31 13F PINNACLE WEST CAP COM 723484101 34,042 -3,335 -8.92 2,697 -5.10 0.0110
2023-02-14 2022-12-31 13F PINNACLE WEST CAP COM 723484101 37,377 24,529 190.92 2,842 242.82 0.0112
2022-11-14 2022-09-30 13F PINNACLE WEST CAP COM 723484101 12,848 12,848 829 0.0042
2022-08-15 2022-06-30 13F PINNACLE WEST CAP COM 723484101 0 -75,590 -100.00 0 -100.00
2022-05-16 2022-03-31 13F PINNACLE WEST CAP COM 723484101 75,590 -262,464 -77.64 5,904 -75.26 0.0253
2022-02-14 2021-12-31 13F PINNACLE WEST CAP COM 723484101 338,054 173,617 105.58 23,863 100.55 0.0631
2021-11-15 2021-09-30 13F PINNACLE WEST CAP COM 723484101 164,437 114,973 232.44 11,899 193.44 0.0342
2021-08-16 2021-06-30 13F PINNACLE WEST CAP COM 723484101 49,464 -1,525 -2.99 4,055 -2.24 0.0154
2021-05-17 2021-03-31 13F PINNACLE WEST CAP COM 723484101 50,989 -79,491 -60.92 4,148 -60.24 0.0243
2021-02-16 2020-12-31 13F PINNACLE WEST CAP COM 723484101 130,480 5,818 4.67 10,432 12.24 0.0779
2020-11-16 2020-09-30 13F PINNACLE WEST CAP COM 723484101 124,662 -59,239 -32.21 9,294 -31.04 0.1252
2020-08-14 2020-06-30 13F PINNACLE WEST CAP COM 723484101 183,901 128,578 232.41 13,478 221.44 0.2180
2020-05-15 2020-03-31 13F PINNACLE WEST CAP COM 723484101 55,323 55,323 4,193 0.1073
2020-02-14 2019-12-31 13F PINNACLE WEST CAP COM 723484101 0 -59,599 -100.00 0 -100.00
2019-11-14 2019-09-30 13F PINNACLE WEST CAP COM 723484101 59,599 -75,943 -56.03 5,785 -54.64 0.0516
2019-08-14 2019-06-30 13F PINNACLE WEST CAP COM 723484101 135,542 135,542 12,753 0.1243
2019-05-15 2019-03-31 13F PINNACLE WEST CAP COM 723484101 0 -73,714 -100.00 0 -100.00
2019-02-14 2018-12-31 13F PINNACLE WEST CAP COM 723484101 73,714 -25,917 -26.01 6,280 -20.40 0.0731
2018-11-14 2018-09-30 13F PINNACLE WEST CAP COM 723484101 99,631 -5,632 -5.35 7,889 -6.97 0.0944
2018-08-14 2018-06-30 13F PINNACLE WEST CAP COM 723484101 105,263 -7,514 -6.66 8,480 -5.78 0.1124
2018-05-15 2018-03-31 13F PINNACLE WEST CAP COM 723484101 112,777 4,432 4.09 9,000 -2.48 0.1429
2018-02-14 2017-12-31 13F PINNACLE WEST CAP COM 723484101 108,345 -56,889 -34.43 9,229 -33.95 0.1608
2017-11-14 2017-09-30 13F PINNACLE WEST CAP COM 723484101 165,234 126,883 330.85 13,972 327.80 0.2688
2017-08-14 2017-06-30 13F PINNACLE WEST CAP COM 723484101 38,351 15,047 64.57 3,266 68.09 0.0643
2017-05-15 2017-03-31 13F PINNACLE WEST CAP COM 723484101 23,304 13,915 148.21 1,943 165.08 0.0536
2017-02-14 2016-12-31 13F PINNACLE WEST CAP COM 723484101 9,389 -3,963 -29.68 733 -27.71 0.0300
2016-11-14 2016-09-30 13F PINNACLE WEST CAP COM 723484101 13,352 13,352 0.00 1,014 0.0673
2016-08-15 2016-06-30 13F PINNACLE WEST CAP COM 723484101 0 -10,216 -100.00 0 -100.00
2016-05-16 2016-03-31 13F PINNACLE WEST CAP COM 723484101 10,216 2,433 31.26 767 52.79 0.0595
2016-02-16 2015-12-31 13F PINNACLE WEST CAP COM 723484101 7,783 3,709 91.04 502 92.34 0.0551
2015-11-16 2015-09-30 13F PINNACLE WEST CAP COM 723484101 4,074 4,074 261 0.0651
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.