Whittier Trust Co reports 11.90% decrease in ownership of PNW / Pinnacle West Capital Corporation

Pinnacle West Capital Corporation

US ˙ NYSE ˙ US7234841010

Security	PNW / Pinnacle West Capital Corporation
Institution	Whittier Trust Co
Latest Disclosed Ownership	444 shares
Latest Disclosed Value	$ 45,497

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 444 shares of Pinnacle West Capital Corporation (US:PNW) valued at $44,733 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 504 shares of Pinnacle West Capital Corporation. This represents a change in shares of -11.90% during the quarter. The current value of the position is $45,759 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 Premium Registration Required .

Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-04-28	2026-03-31	13F	PINNACLE WEST	common	723484101	444	-60	-11.90	45	2.27	0.0005
2026-01-26	2025-12-31	13F	PINNACLE WEST	common	723484101	504	60	13.51	45	10.00	0.0005
2025-10-31	2025-09-30	13F	PINNACLE WEST CAP	common	723484101	444	0	0.00	40	2.56	0.0005
2025-07-30	2025-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	444	0	0.00	40	-7.14	0.0005
2025-05-02	2025-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	444	0	0.00	42	13.51	0.0006
2025-02-11	2024-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	444	0	0.00	38	-5.13	0.0005
2024-10-21	2024-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	444	0	0.00	39	18.18	0.0005
2024-07-29	2024-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	444	-1,500	-77.16	34	-77.24	0.0005
2024-05-02	2024-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,944	-46	-2.31	145	2.11	0.0021
2024-01-11	2023-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,990	46	2.37	143	-0.70	0.0023
2023-10-27	2023-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,944	0	0.00	143	-9.49	0.0025
2023-07-24	2023-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,944	-110	-5.36	158	-2.47	0.0028
2023-04-21	2023-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,054	0	0.00	163	3.85	0.0030
2023-01-25	2022-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,054	0	0.00	156	17.29	0.0030
2022-10-21	2022-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,054	-26	-1.25	133	-12.50	0.0028
2022-07-28	2022-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,080	0	0.00	152	-6.17	0.0031
2022-04-29	2022-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,080	0	0.00	162	10.20	0.0027
2022-01-19	2021-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,080	-460	-18.11	147	-20.11	0.0024
2021-11-01	2021-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	184	-11.54	0.0034
2021-07-29	2021-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	208	0.48	0.0037
2021-04-26	2021-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	207	1.97	0.0040
2021-01-29	2020-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	203	7.41	0.0043
2020-10-30	2020-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	189	1.61	0.0045
2020-07-10	2020-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	0	0.00	186	-3.63	0.0052
2020-04-27	2020-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,540	-6	-0.24	193	-15.72	0.0063
2020-01-31	2019-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,546	0	0.00	229	-7.29	0.0060
2019-10-18	2019-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,546	40	1.60	247	4.66	0.0071
2019-07-23	2019-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,506	0	0.00	236	-1.67	0.0069
2019-04-29	2019-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,506	6	0.24	240	12.68	0.0073
2019-02-07	2018-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,500	0	0.00	213	7.58	0.0073
2018-10-23	2018-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	2,500	700	38.89	198	36.55	0.0062
2018-07-27	2018-06-30	13F/A-1	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,800	0	0.00	145	0.69	0.0048
2018-05-01	2018-03-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,800	0	0.00	144	-5.88	0.0048
2018-02-07	2017-12-31	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,800	0	0.00	153	0.66	0.0053
2017-10-23	2017-09-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,800	0	0.00	152	-0.65	0.0055
2017-07-20	2017-06-30	13F	PINNACLE WEST CAP CORP COM	US MID-CAP EQUITIES	723484101	1,800	0	0.00	153	2.00	0.0059
2017-04-26	2017-03-31	13F	PINNACLE WEST CAP	US SMALL AND MID-CAP EQUITIES	723484101	1,800	0	0.00	150	7.14	0.0061
2017-01-18	2016-12-31	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	1,800	0	0.00	140	2.19	0.0060
2016-11-10	2016-09-30	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	1,800	-2,250	-55.56	137	-58.23	0.0060
2016-07-28	2016-06-30	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,050	0	0.00	328	7.89	0.0145
2016-04-28	2016-03-31	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,050	0	0.00	304	16.48	0.0134
2016-02-10	2015-12-31	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,050	-500	-10.99	261	-10.62	0.0118
2015-11-12	2015-09-30	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,550	0	0.00	292	12.74	0.0142
2015-08-13	2015-06-30	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,550	300	7.06	259	-4.43	0.0115
2015-05-05	2015-03-31	13F	PINNACLE WEST CAP CORP COM	US SMALL AND MID-CAP EQUITIES	723484101	4,250	4,250		271		0.0124

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.