Pinnacle West Capital Corporation
US ˙ NYSE ˙ US7234841010

SecurityPNW / Pinnacle West Capital Corporation
InstitutionQuarry LP
Latest Disclosed Ownership1,300 shares
Latest Disclosed Value $ 130,975
Quarry LP reports 42.45% decrease in ownership of PNW / Pinnacle West Capital Corporation

On May 15, 2026 - Quarry LP filed a 13F-HR form disclosing ownership of 1,300 shares of Pinnacle West Capital Corporation (US:PNW) valued at $130,975 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,259 shares of Pinnacle West Capital Corporation. This represents a change in shares of -42.45% during the quarter. The current value of the position is $129,207 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.

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 PINNACLE WEST CAP COM 723484101 1,300 -959 -42.45 131 -35.00 0.0235
2026-02-13 2025-12-31 13F PINNACLE WEST CAP COM 723484101 2,259 1,254 124.78 200 122.22 0.0313
2025-11-14 2025-09-30 13F PINNACLE WEST CAP COM 723484101 1,005 -1,546 -60.60 90 -60.53 0.0198
2025-08-14 2025-06-30 13F PINNACLE WEST CAP COM 723484101 2,551 2,551 228 0.0486
2025-02-14 2024-12-31 13F PINNACLE WEST CAP COM 723484101 0 -55 -100.00 0 -100.00
2024-11-14 2024-09-30 13F PINNACLE WEST CAP COM 723484101 55 55 5 0.0012
2024-05-15 2024-03-31 13F PINNACLE WEST CAP COM 723484101 0 -1,734 -100.00 0 -100.00
2024-02-20 2023-12-31 13F/A-1 PINNACLE WEST CAP COM 723484101 1,734 958 123.45 125 117.54 0.0192
2024-02-14 2023-12-31 13F PINNACLE WEST CAP COM 723484101 1,734 958 125 0.0180
2023-11-14 2023-09-30 13F PINNACLE WEST CAP COM 723484101 776 776 57 0.0133
2023-08-14 2023-06-30 13F PINNACLE WEST CAP COM 723484101 0 -149 -100.00 0 -100.00
2023-05-15 2023-03-31 13F PINNACLE WEST CAP COM 723484101 149 48 47.52 12 57.14 0.0026
2023-02-14 2022-12-31 13F PINNACLE WEST CAP COM 723484101 101 101 8 0.0017
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.