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Who

Jeffrey B. Guldner

Director

Company insider

Files Form 4 as: Director, Nextpower; Director, Duke Energy Corporation (Holding Company); Chairman, President and CEO, Pinnacle West Capital.

In numbers

Trades disclosed
365
Buys
0
Sells
3
Bought
$0
Sold
$431K
Companies
3
Companies where not an officer
2
First trade
17 Feb 2012
Last trade
19 Aug 2026
Last filed
19 Aug 2026

Companies traded

Where they are an officer
PNW Pinnacle West CapitalDirector, Officer, Other · Electric Utilities & IPPs · last 18 Mar 20250 buys · 3 sells
Everywhere else they filed: board seats, 10% stakes, other companies
NXT NextpowerDirector · Solar & Renewables · last 19 Aug 20260 buys · 0 sells
DUK Duke Energy Corporation (Holding Company)Director · Electric Utilities & IPPs · last 7 May 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
19 Aug 2026filed 19 Aug 2026NXT NextpowerSolar & RenewablesSEC FORM 4 Code A—2,742 at $0.00filing
19 Aug 2026filed 19 Aug 2026NXT NextpowerSolar & RenewablesSEC FORM 4 Code A—2,742 at $0.00filing
7 May 2026filed 11 May 2026DUK Duke Energy Corporation (Holding Company)option or derivative · Electric Utilities & IPPsSEC FORM 4 Code A$200K1,602 at $124.87filing
7 May 2026filed 11 May 2026DUK Duke Energy Corporation (Holding Company)option or derivative · Electric Utilities & IPPsSEC FORM 4 Code A$200K1,602 at $124.87filing
15 Sep 2025filed 16 Sep 2025DUK Duke Energy Corporation (Holding Company)option or derivative · Electric Utilities & IPPsSEC FORM 4 Code A$123K1,005 at $122.37filing
19 Aug 2025filed 20 Aug 2025NXT NextpowerSolar & RenewablesSEC FORM 4 Code A—3,692 at $0.00filing
18 Mar 2025filed 20 Mar 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code A—94,008 at $0.00filing
18 Mar 2025filed 20 Mar 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code D$1.1M11,859 at $93.38filing
18 Mar 2025filed 20 Mar 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code F$3.3M35,202 at $93.38filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West Capitaloption or derivative · Electric Utilities & IPPsSEC FORM 4 Code M—3,838filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West Capitaloption or derivative · Electric Utilities & IPPsSEC FORM 4 Code M—5,401filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West Capitaloption or derivative · Electric Utilities & IPPsSEC FORM 4 Code M—5,396filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West Capitaloption or derivative · Electric Utilities & IPPsSEC FORM 4 Code M—6,760filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code M—3,838filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code F$141K1,555 at $90.77filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code M—5,401filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code D$62K682 at $90.77filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code F$174K1,912 at $90.77filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code M—5,396filing
20 Feb 2025filed 24 Feb 2025PNW Pinnacle West CapitalElectric Utilities & IPPsSEC FORM 4 Code D$41K454 at $90.77filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Utilities3

Buys in green, sells in red, by the company’s sector.

Related people

Elizabeth A. BlankenshipVP, Controller and CAO · VP, Controller and CAO at Pinnacle West Capital, filing Form 4 there in the last year
Jose Luis Esparza Jr.Other role · Other at Pinnacle West Capital, filing Form 4 there in the last year
Susan T. FlanaganDirector · Director at Pinnacle West Capital, filing Form 4 there in the last year
William H. SpenceDirector · Director at Pinnacle West Capital, filing Form 4 there in the last year
Paula J. SimsDirector · Director at Pinnacle West Capital, filing Form 4 there in the last year