PINNACLE WEST CAP CORP

Ticker: PNW CUSIP: 723484101 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 164,986 Value ($000) $14,634 Avg Close $89.23 Range $86.18 - $93.48

Q3 2025

Shares 108,683 Value ($000) $9,745 Avg Close $88.79 Range $84.44 - $93.47

Q2 2025

Shares 499,383 Value ($000) $44,680 Avg Close $89.32 Range $84.01 - $93.67

Q1 2025

Shares 543,783 Value ($000) $51,795 Avg Close $86.37 Range $78.26 - $93.02

Q4 2024

Shares 471,183 Value ($000) $39,942 Avg Close $84.97 Range $80.67 - $91.67

Q3 2024

Shares 284,583 Value ($000) $25,211 Avg Close $80.90 Range $70.66 - $87.05

Q2 2024

Shares 108,883 Value ($000) $8,316 Avg Close $70.74 Range $65.76 - $74.22

Q1 2024

Shares 386,183 Value ($000) $28,859 Avg Close $65.20 Range $60.62 - $69.54

Q3 2023

Shares 425,183 Value ($000) $31,327 Avg Close $71.78 Range $66.39 - $77.25

Q2 2023

Shares 512,883 Value ($000) $41,779 Avg Close $71.39 Range $67.35 - $75.96

Q1 2023

Shares 488,283 Value ($000) $38,692 Avg Close $66.77 Range $63.66 - $71.10

Q4 2022

Shares 590,083 Value ($000) $44,870 Avg Close $62.50 Range $51.16 - $70.75

Q3 2022

Shares 365,183 Value ($000) $23,558 Avg Close $63.64 Range $55.76 - $68.03

Q2 2022

Shares 117,683 Value ($000) $8,605 Avg Close $63.84 Range $55.80 - $68.19

Q1 2022

Shares 20,183 Value ($000) $1,576 Avg Close $60.39 Range $56.02 - $66.65

Q3 2021

Shares 264,983 Value ($000) $19,174 Avg Close $65.26 Range $58.98 - $71.06

Q2 2021

Shares 123,183 Value ($000) $10,097 Avg Close $68.95 Range $65.28 - $72.42

Q4 2020

Shares 123,483 Value ($000) $9,872 Avg Close $65.83 Range $58.83 - $73.60

Q3 2020

Shares 621,063 Value ($000) $46,300 Avg Close $60.54 Range $54.95 - $66.17

Q2 2020

Shares 525,063 Value ($000) $38,482 Avg Close $59.12 Range $52.33 - $65.86

Q1 2020

Shares 127,363 Value ($000) $9,653 Avg Close $70.35 Range $46.70 - $82.05

Q4 2019

Shares 129,663 Value ($000) $11,661 Avg Close $69.39 Range $65.00 - $74.61

Q3 2019

Shares 135,863 Value ($000) $13,188 Avg Close $71.87 Range $68.70 - $75.42

Q2 2019

Shares 137,163 Value ($000) $12,906 Avg Close $72.15 Range $69.78 - $75.74

Q1 2019

Shares 782,594 Value ($000) $74,800 Avg Close $67.77 Range $60.95 - $73.24

Q4 2018

Shares 984,794 Value ($000) $83,904 Avg Close $64.12 Range $57.80 - $69.17

Q3 2018

Shares 141,594 Value ($000) $11,211 Avg Close $59.27 Range $56.90 - $61.30

Q2 2018

Shares 146,094 Value ($000) $11,769 Avg Close $57.22 Range $53.85 - $59.87

Q1 2018

Shares 547,894 Value ($000) $43,722 Avg Close $56.89 Range $53.69 - $61.68

Q4 2017

Shares 157,794 Value ($000) $13,441 Avg Close $63.49 Range $60.19 - $66.68

Q3 2017

Shares 653,794 Value ($000) $55,285 Avg Close $62.55 Range $59.60 - $65.04

Q2 2017

Shares 555,494 Value ($000) $47,306 Avg Close $61.03 Range $58.21 - $63.58

Q1 2017

Shares 557,894 Value ($000) $46,517 Avg Close $56.18 Range $53.40 - $59.69

Q4 2016

Shares 152,040 Value ($000) $11,864 Avg Close $52.24 Range $49.50 - $55.16

Q3 2016

Shares 154,240 Value ($000) $11,721 Avg Close $53.79 Range $51.20 - $56.86

Q2 2016

Shares 160,840 Value ($000) $13,038 Avg Close $51.08 Range $48.16 - $55.70

Q1 2016

Shares 163,840 Value ($000) $12,299 Avg Close $46.44 Range $42.15 - $51.17

Q4 2015

Shares 163,940 Value ($000) $10,571 Avg Close $42.78 Range $40.93 - $44.75

Q3 2015

Shares 766,689 Value ($000) $49,175 Avg Close $40.69 Range $37.54 - $43.56

Q2 2015

Shares 489,989 Value ($000) $27,875 Avg Close $39.75 Range $37.04 - $42.55

Q1 2015

Shares 168,789 Value ($000) $10,760 Avg Close $43.61 Range $40.31 - $47.62

Q4 2014

Shares 2,305,450 Value ($000) $157,485 Avg Close $40.25 Range $35.11 - $46.19

Q3 2014

Shares 2,258,350 Value ($000) $123,396 Avg Close $35.72 Range $33.53 - $37.13

Q2 2014

Shares 1,310,850 Value ($000) $75,820 Avg Close $35.10 Range $33.77 - $36.96

Q1 2014

Shares 1,763,550 Value ($000) $96,396 Avg Close $33.65 Range $32.14 - $35.28

Q4 2013

Shares 166,350 Value ($000) $8,803 Avg Close $34.02 Range $32.61 - $36.23

Q3 2013

Shares 157,948 Value ($000) $8,646 Avg Close $34.55 Range $32.11 - $37.02

Q2 2013

Shares 757,948 Value ($000) $42,043 Avg Close $35.40 Range $31.53 - $37.84

Q1 2013

Shares 556,748 Value ($000) $32,230 Avg Close $32.98 Range $30.89 - $35.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	164,986	$14,634	$89.23	$86.18 - $93.48
Q3 2025	108,683	$9,745	$88.79	$84.44 - $93.47
Q2 2025	499,383	$44,680	$89.32	$84.01 - $93.67
Q1 2025	543,783	$51,795	$86.37	$78.26 - $93.02
Q4 2024	471,183	$39,942	$84.97	$80.67 - $91.67
Q3 2024	284,583	$25,211	$80.90	$70.66 - $87.05
Q2 2024	108,883	$8,316	$70.74	$65.76 - $74.22
Q1 2024	386,183	$28,859	$65.20	$60.62 - $69.54
Q3 2023	425,183	$31,327	$71.78	$66.39 - $77.25
Q2 2023	512,883	$41,779	$71.39	$67.35 - $75.96
Q1 2023	488,283	$38,692	$66.77	$63.66 - $71.10
Q4 2022	590,083	$44,870	$62.50	$51.16 - $70.75
Q3 2022	365,183	$23,558	$63.64	$55.76 - $68.03
Q2 2022	117,683	$8,605	$63.84	$55.80 - $68.19
Q1 2022	20,183	$1,576	$60.39	$56.02 - $66.65
Q3 2021	264,983	$19,174	$65.26	$58.98 - $71.06
Q2 2021	123,183	$10,097	$68.95	$65.28 - $72.42
Q4 2020	123,483	$9,872	$65.83	$58.83 - $73.60
Q3 2020	621,063	$46,300	$60.54	$54.95 - $66.17
Q2 2020	525,063	$38,482	$59.12	$52.33 - $65.86
Q1 2020	127,363	$9,653	$70.35	$46.70 - $82.05
Q4 2019	129,663	$11,661	$69.39	$65.00 - $74.61
Q3 2019	135,863	$13,188	$71.87	$68.70 - $75.42
Q2 2019	137,163	$12,906	$72.15	$69.78 - $75.74
Q1 2019	782,594	$74,800	$67.77	$60.95 - $73.24
Q4 2018	984,794	$83,904	$64.12	$57.80 - $69.17
Q3 2018	141,594	$11,211	$59.27	$56.90 - $61.30
Q2 2018	146,094	$11,769	$57.22	$53.85 - $59.87
Q1 2018	547,894	$43,722	$56.89	$53.69 - $61.68
Q4 2017	157,794	$13,441	$63.49	$60.19 - $66.68
Q3 2017	653,794	$55,285	$62.55	$59.60 - $65.04
Q2 2017	555,494	$47,306	$61.03	$58.21 - $63.58
Q1 2017	557,894	$46,517	$56.18	$53.40 - $59.69
Q4 2016	152,040	$11,864	$52.24	$49.50 - $55.16
Q3 2016	154,240	$11,721	$53.79	$51.20 - $56.86
Q2 2016	160,840	$13,038	$51.08	$48.16 - $55.70
Q1 2016	163,840	$12,299	$46.44	$42.15 - $51.17
Q4 2015	163,940	$10,571	$42.78	$40.93 - $44.75
Q3 2015	766,689	$49,175	$40.69	$37.54 - $43.56
Q2 2015	489,989	$27,875	$39.75	$37.04 - $42.55
Q1 2015	168,789	$10,760	$43.61	$40.31 - $47.62
Q4 2014	2,305,450	$157,485	$40.25	$35.11 - $46.19
Q3 2014	2,258,350	$123,396	$35.72	$33.53 - $37.13
Q2 2014	1,310,850	$75,820	$35.10	$33.77 - $36.96
Q1 2014	1,763,550	$96,396	$33.65	$32.14 - $35.28
Q4 2013	166,350	$8,803	$34.02	$32.61 - $36.23
Q3 2013	157,948	$8,646	$34.55	$32.11 - $37.02
Q2 2013	757,948	$42,043	$35.40	$31.53 - $37.84
Q1 2013	556,748	$32,230	$32.98	$30.89 - $35.12