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Governance Register
US nonprofit · EIN 951644606 · Pasadena, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 951644606) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay, related organisations (Schedule R).Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Norton Simon Museum of Art at Pasadena's network

12 people8 organisationsi12 people and 8 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (12). Violet dotted lines (13) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

12 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 12 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Thomas L Pfister ChairChairman2018
8 yrs
Douglas SimonTrustee2018
8 yrs
Dr Earl A Powell IIITrustee2018
8 yrs
Dr Michael E PhelpsTrustee2019
7 yrs
John ArmourTrustee2019
7 yrs
Kerry C O'NeillTrustee2019
7 yrs
Pamela Simon JensenTrustee2018
8 yrs
Paul J WatfordTrustee2023
3 yrs
Ronald L OlsonTrustee2018
8 yrs
Tom BrokawTrustee2018
8 yrs
Victoria B RogersTrustee2018
8 yrs
Walter W TimoshukPresident & CEO2018
8 yrs
Under 5 years5 to 6 years6 years or moreShow all 12 →

Officers and senior leadership

10 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Carol TogneriChief Curatorsince 2018
Cindy SchembriControllersince 2018
Emily TalbotChief Curator2023
John SudolcanDirector of Operationssince 2018
Leslie DenkDirector of External Affairssince 2018
Leslie Denk VP beg 111422Vice President2023
Ronald H DykhuizenVP; CFO; Trsr; Assist Secsince 2018
Sally SwaneyExecutive Administratorsince 2019
Sally Swaney Term 92322Executive Admin2023
Stephanie VillasenorVP (beg 11/13/17); Secretarysince 2018

Pay and hours

year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Walter W TimoshukPresident & CEO & Chair30$473k$473k$219k
Ronald H DykhuizenCFO/EVP/Treasurer/Asst Sec30$234k$234k$139k
Jennifer CorriganDirector of Facilites37.5$121k$6k
James K RobertsDirector of Security37.5$105k$12k
Jenina GarrettController25$76k$76k$59k
Emily TalbotChief Curator25$73k$73k$39k
Stephanie VillasenorVP & Secretary(Thru 2/11/2025)12.5$66k$198k$38k
Leslie C DenkVP External Affairs12.5$43k$128k$54k
John GriswoldConservator12.5$32k$97k$35k
John ArmourTrustee & Vice Chair1$0
Pamela SimonTrustee1$0
Kerry O'neillTrustee1$0
Ronald L OlsonTrustee1$0
Dr Michael E PhelpsTrustee1$0
Victoria B RogersTrustee1$0
Douglas SimonTrustee1$0
Paul J WatfordTrustee1$0
Tom Brokaw Thru 111124Trustee & Vice Chair1$0
Thomas L PfisterTrustee & Chair(Thru 11/11/24)2$0
Stephen W ClarkTrustee1$0
Judge Kim McLane WardlawTrustee1$0

About

Legal name
Norton Simon Museum of Art at Pasadena
EIN
951644606
Address
411 W Colorado Blvd, Pasadena, CA, 91105-1825
State
California
Mission
(as filed on the Form 990)
Activity (NTEE)
A510 Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
9 (IRS master file code)
Formed
1924
Principal officer
Walter W Timoshuk (as named on the Form 990)
IRS ruling date
1 May 1943
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Related organisations (Schedule R)

Longest observed on the filings

≥8years on the filingsThomas L Pfister
≥8years on the filingsDouglas Simon
≥8years on the filingsDr Earl A Powell III
≥8years on the filingsPamela Simon Jensen

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$152.3m
Total liabilities
$2.6m
Net assets or fund balances
$149.6m
Contributions and grants received
$6.5m
Program service revenue
$1.2m
Employees
160
Volunteers
12