Pinnacle West Capital PNW
Pinnacle West Capital is the 468th largest S&P 500 company by market cap, worth $12.8 billion. 10 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 4 other officers are on file. At 30 Jun 2026, Capital Group was its largest institutional holder, with 13.6% of the company.
- Chair and CEO
- Theodore N. Geisler
- Sector
- Utilities
- Sub-industry
- Multi-Utilities
- Headquarters
- Phoenix, Arizona
- Founded
- 1985
- More
- Wikipedia
- Market cap
- $12.8B
- 468th largest, 23 Oct 2026 close
- Price to sales
- 2.4
- Market cap over revenue
- Market cap per employee
- $1.9M
- Market cap over employees
- Connections
- 3
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of Pinnacle West Capital. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
3 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (10) | |
| Theodore N. GeislerChairman, CEO and PresidentLast filed 20 Mar 2026 | |
| Glynis BryanDirectorAlso at Ameriprise Financial | |
| Ronald Butler Jr.Director | |
| Carol S. EicherDirector | |
| Susan T. FlanaganDirector | |
| Gonzalo A. de la Melena Jr.Director | |
| Paula J. SimsDirector | |
| William H. SpenceDirectorAlso at Williams Companies | |
| Kristine L. SvinickiDirectorAlso at Southern Company | |
| James E. Trevathan Jr.Director | |
| Officers (4) | |
| Andrew D. CooperSVP & CFOLast filed 20 Mar 2026 | |
| Christopher R. BauerVP and TreasurerLast filed 24 Feb 2026 | |
| Shirley A. BaumSVP and GCLast filed 20 Mar 2026 | |
| Elizabeth A. BlankenshipVP, Controller and CAOLast filed 11 Aug 2026 | |
Companies that share people with Pinnacle West Capital
Each person's title here, then at the other company.
- Ameriprise Financial AMP
- Glynis Bryan: Director here, Director there
- Southern Company SO
- Kristine L. Svinicki: Director here, Director there
- Williams Companies WMB
- William H. Spence: Director here, Director there
Pinnacle West Capital's market cap since December 2008
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $12.8B |
| 26 Dec 2025 | $10.6B |
| 27 Dec 2024 | $9.7B |
| 29 Dec 2023 | $8.2B |
| 30 Dec 2022 | $8.6B |
| 31 Dec 2021 | $8.0B |
| 25 Dec 2020 | $8.8B |
| 27 Dec 2019 | $10.0B |
| 28 Dec 2018 | $9.6B |
| 29 Dec 2017 | $9.5B |
| 30 Dec 2016 | $8.7B |
| 25 Dec 2015 | $7.1B |
| 26 Dec 2014 | $7.7B |
| 27 Dec 2013 | $5.9B |
| 28 Dec 2012 | $5.5B |
| 30 Dec 2011 | $5.3B |
| 31 Dec 2010 | $4.5B |
| 25 Dec 2009 | $3.8B |
| 26 Dec 2008 | $3.1B |
Download Pinnacle West Capital's data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 31 Dec 2025
- Employees
- 6,610
The table below presents the employee count as of December 31, 2025: … Total 6,610
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $97,187 of stock in 1 sale and made no open-market purchases in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 10 Aug 2026Sale | Elizabeth A. BlankenshipVP, Controller and CAO | $97K |
Not on file: no trades disclosed by members of Congress or officials since October 2023 and no WARN layoff notices under its own name since October 2023.