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Nonprofiteer
← PLANETARY SCIENCE INSTITUTE

Form 990 for tax year 2023

Filed by PLANETARY SCIENCE INSTITUTE.

Totals

Total revenue
$17,875,430
Total expenses
$17,793,247
Contributions and grants received
$127,528
Grants paid
$0
Program service revenue
$17,674,797
Investment income
$66,962
Other revenue
$6,143
Total assets, end of year
$5,660,734
Total liabilities, end of year
$2,230,439
Net assets or fund balances, end of year
$3,430,295
Program services expenses (Part IX)
$16,019,376
Management and general expenses
$1,772,537
Fundraising expenses
$1,334
Program service expenses (Part III)
$16,019,376

Program services were 90.0% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

Listed in Part VII

  • Mark V Sykes

    CEO / Trustee

    Total calculated
    $307,198
    From this org
    $262,687
    From related orgs
    $0
    Other
    $44,511
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $245,415
    Bonus
    $15,000
    Other
    $2,272
    Deferred
    $36,268
    Nontaxable benefits
    $8,243
    Filer's total
    $307,198
  • Scott Fouse

    Trustee/Board Chair

    Total calculated
    $0
    Hours/week
    5
  • William Craig

    Trustee/Vice Chair

    Total calculated
    $0
    Hours/week
    5
  • William Hartmann

    Trustee

    Total calculated
    $0
    Hours/week
    5
  • Alison Nordt

    Trustee

    Total calculated
    $0
    Hours/week
    5
  • Arun Seraphin

    Trustee

    Total calculated
    $0
    Hours/week
    5
  • Maurizio A Ienna-Balistreri

    CFO / Treasurer

    Total calculated
    $254,737
    From this org
    $201,307
    From related orgs
    $0
    Other
    $53,430
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $186,007
    Bonus
    $15,000
    Other
    $300
    Deferred
    $27,545
    Nontaxable benefits
    $25,885
    Filer's total
    $254,737
  • Linda L Rueger

    HR Director / Secretary

    Total calculated
    $179,844
    From this org
    $150,967
    From related orgs
    $0
    Other
    $28,877
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $146,740
    Bonus
    $2,000
    Other
    $2,227
    Deferred
    $20,634
    Nontaxable benefits
    $8,243
    Filer's total
    $179,844
  • Nathaniel Putzig

    Senior Scientist

    Total calculated
    $215,502
    From this org
    $175,167
    From related orgs
    $0
    Other
    $40,335
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $172,931
    Bonus
    $946
    Other
    $1,290
    Deferred
    $23,966
    Nontaxable benefits
    $16,369
    Filer's total
    $215,502
  • Amanda R Hendrix

    Senior Scientist

    Total calculated
    $248,677
    From this org
    $196,113
    From related orgs
    $0
    Other
    $52,564
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $183,956
    Bonus
    $10,867
    Other
    $1,290
    Deferred
    $26,679
    Nontaxable benefits
    $25,885
    Filer's total
    $248,677
  • Catherine M Weitz

    Senior Scientist

    Total calculated
    $218,313
    From this org
    $178,166
    From related orgs
    $0
    Other
    $40,147
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $172,983
    Bonus
    $3,893
    Other
    $1,290
    Deferred
    $24,400
    Nontaxable benefits
    $15,747
    Filer's total
    $218,313
  • Melinda Dyar

    Senior Scientist

    Total calculated
    $208,850
    From this org
    $183,202
    From related orgs
    $0
    Other
    $25,648
    Hours/week
    30

    Schedule J breakdown matched by us

    Base
    $176,309
    Bonus
    $6,893
    Other
    $0
    Deferred
    $25,648
    Nontaxable benefits
    $0
    Filer's total
    $208,850
  • Eldar Z Noe Dobrea

    Senior Scientist

    Total calculated
    $204,399
    From this org
    $172,659
    From related orgs
    $0
    Other
    $31,740
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $172,209
    Bonus
    $0
    Other
    $450
    Deferred
    $23,929
    Nontaxable benefits
    $7,811
    Filer's total
    $204,399

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us.

Schedule J

Answered yes

  • 3 · Written employment contract
  • 3 · Compensation survey or study
  • 3 · Approval by the board or compensation committee

Answered no

  • 4a · Severance or change-of-control payment
  • 4b · Supplemental nonqualified retirement plan
  • 4c · Equity-based compensation arrangement
  • 5a · Pay contingent on this organization's revenues
  • 5b · Pay contingent on a related organization's revenues
  • 6a · Pay contingent on this organization's net earnings
  • 6b · Pay contingent on a related organization's net earnings
  • 7 · Other non-fixed payments
  • 8 · Paid under the initial-contract exception

Part I's answers as filed. A line not listed was left unanswered; on lines 1a and 3 that means the box was not checked.

Grants on this return

No itemized grants to organizations on this return.

Provenance

Return type
form_990
Tax year
2023
Filed
12 August 2025
IRS schema version
2023v6.0
Source object
202532269349302548

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