Pinnacle West Capital Corporation
US ˙ NYSE ˙ US7234841010

SecurityPNW / Pinnacle West Capital Corporation
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership81,173 shares
Latest Disclosed Value $ 8,178,180
Quantbot Technologies LP reports 151.25% increase in ownership of PNW / Pinnacle West Capital Corporation

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 81,173 shares of Pinnacle West Capital Corporation (US:PNW) valued at $8,178,180 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 32,308 shares of Pinnacle West Capital Corporation. This represents a change in shares of 151.25% during the quarter. The current value of the position is $8,067,784 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)
2026-05-13 2026-03-31 13F PINNACLE WEST CAPITAL COM 723484101 81,173 48,865 151.25 8,178 185.45 0.3346
2026-02-10 2025-12-31 13F PINNACLE WEST CAPITAL COM 723484101 32,308 2,252 7.49 2,866 6.35 0.0953
2025-11-12 2025-09-30 13F PINNACLE WEST CAPITAL COM 723484101 30,056 13,158 77.87 2,695 78.29 0.0733
2025-08-13 2025-06-30 13F PINNACLE WEST CAPITAL COM 723484101 16,898 16,898 1,512 0.0388
2025-05-13 2025-03-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -1,978 -100.00 0 -100.00
2025-02-11 2024-12-31 13F PINNACLE WEST CAPITAL COM 723484101 1,978 -41,752 -95.48 168 -95.69 0.0061
2024-11-13 2024-09-30 13F PINNACLE WEST CAPITAL COM 723484101 43,730 -19,233 -30.55 3,874 -19.44 0.1528
2024-08-09 2024-06-30 13F PINNACLE WEST CAPITAL COM 723484101 62,963 48,212 326.84 4,809 336.39 0.2327
2024-05-06 2024-03-31 13F PINNACLE WEST CAPITAL COM 723484101 14,751 14,751 1,102 0.0621
2024-02-14 2023-12-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -31,569 -100.00 0 -100.00
2023-11-07 2023-09-30 13F PINNACLE WEST CAPITAL COM 723484101 31,569 31,569 2,326 0.1563
2022-02-11 2021-12-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -22,862 -100.00 0 -100.00
2021-11-09 2021-09-30 13F PINNACLE WEST CAPITAL COM 723484101 22,862 21,786 2,024.72 1,654 1,779.55 0.1210
2021-08-12 2021-06-30 13F PINNACLE WEST CAPITAL COM 723484101 1,076 1,076 88 0.0069
2020-08-13 2020-06-30 13F PINNACLE WEST CAPITAL COM 723484101 0 -56 -100.00 0 -100.00
2020-05-13 2020-03-31 13F PINNACLE WEST CAPITAL COM 723484101 56 -26,769 -99.79 4 -99.83 0.0026
2020-02-10 2019-12-31 13F PINNACLE WEST CAPITAL COM 723484101 26,825 26,317 5,180.51 2,412 4,822.45 0.2393
2019-11-12 2019-09-30 13F PINNACLE WEST CAPITAL COM 723484101 508 508 -98.11 49 -97.97 0.0048
2019-05-13 2019-03-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -12,669 -100.00 0 -100.00
2019-02-13 2018-12-31 13F PINNACLE WEST CAPITAL COM 723484101 12,669 -13,113 -50.86 1,079 -47.13 0.1056
2018-11-13 2018-09-30 13F PINNACLE WEST CAPITAL COM 723484101 25,782 24,720 2,327.68 2,041 2,301.18 0.1428
2018-08-13 2018-06-30 13F PINNACLE WEST CAPITAL COM 723484101 1,062 -5,377 -83.51 85 -83.43 0.0058
2018-05-11 2018-03-31 13F PINNACLE WEST CAPITAL COM 723484101 6,439 -42,953 -86.96 513 -87.81 0.0442
2018-02-12 2017-12-31 13F PINNACLE WEST CAPITAL COM 723484101 49,392 19,330 64.30 4,207 65.50 0.3897
2017-11-07 2017-09-30 13F PINNACLE WEST CAPITAL COM 723484101 30,062 11,662 63.38 2,542 62.32 0.2437
2017-08-11 2017-06-30 13F PINNACLE WEST CAPITAL COM 723484101 18,400 17,259 1,512.62 1,566 1,548.42 0.1475
2017-05-10 2017-03-31 13F PINNACLE WEST CAPITAL COM 723484101 1,141 1,141 -93.80 95 -93.93 0.0100
2016-04-28 2016-03-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -5,562 -100.00 0 -100.00
2016-01-22 2015-12-31 13F PINNACLE WEST CAPITAL COM 723484101 5,562 -264 -4.53 358 -4.02 0.0614
2015-10-22 2015-09-30 13F PINNACLE WEST CAPITAL COM 723484101 5,826 5,826 4.75 373 4.19 0.0650
2015-07-27 2015-06-30 13F PINNACLE WEST CAPITAL COM 723484101 0 -82 -100.00 0 -100.00
2015-04-24 2015-03-31 13F PINNACLE WEST CAPITAL COM 723484101 82 82 5 0.0012
2015-01-27 2014-12-31 13F PINNACLE WEST CAPITAL COM 723484101 0 -2,065 -100.00 0 -100.00
2014-10-15 2014-09-30 13F PINNACLE WEST CAPITAL COM 723484101 2,065 674 48.45 112 40.00 0.0154
2014-07-08 2014-06-30 13F PINNACLE WEST CAPITAL COM 723484101 1,391 -10,112 -87.91 80 -87.26 0.0126
2014-05-21 2014-03-31 13F PINNACLE WEST CAPITAL COM 723484101 11,503 7,203 167.51 628 176.65 0.1481
2014-01-31 2013-12-31 13F PINNACLE WEST CAPITAL COM 723484101 4,300 4,300 227 0.1111
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.