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MARINE BIOLOGICAL LABORATORY

EIN 04-2104690 WOODS HOLE, MA

Revenue 2023
$57,348,551
Expenses 2023
$55,742,822

Program services were 83.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
U500
Classification
2800
Street
7 MBL STREET

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • A Paul Alivisatos

    Former Chair of the Board of Trustees

    Total calculated
    $1,899,535
    From this org
    $0
    From related orgs
    $1,850,854
    Other
    $48,681
    Hours/week
    1 + 40 related

    Schedule J breakdown matched by us

    Base
    $0 + $1,249,077 related
    Bonus
    $0 + $580,981 related
    Other
    $0 + $20,797 related
    Deferred
    $0 + $26,400 related
    Nontaxable benefits
    $0 + $22,281 related
    Filer's total
    $0 + $1,899,536 related

  • Juan J de Pablo

    Trustee

    Total calculated
    $949,251
    From this org
    $0
    From related orgs
    $883,412
    Other
    $65,839
    Hours/week
    2 + 40 related

    Schedule J breakdown matched by us

    Base
    $0 + $708,594 related
    Bonus
    $0 + $166,859 related
    Other
    $0 + $7,958 related
    Deferred
    $0 + $26,400 related
    Nontaxable benefits
    $0 + $39,439 related
    Filer's total
    $0 + $949,250 related

  • Lori Berko

    Secretary of the MBL Corporation

    Total calculated
    $566,707
    From this org
    $0
    From related orgs
    $524,718
    Other
    $41,989
    Hours/week
    2 + 40 related

    Schedule J breakdown matched by us

    Base
    $0 + $475,525 related
    Bonus
    $0 + $47,500 related
    Other
    $0 + $1,692 related
    Deferred
    $0 + $26,400 related
    Nontaxable benefits
    $0 + $15,589 related
    Filer's total
    $0 + $566,706 related

  • Nipam H Patel

    Director of the MBL

    Total calculated
    $515,477
    From this org
    $461,683
    From related orgs
    $0
    Other
    $53,794
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $461,682
    Bonus
    $0
    Other
    $0
    Deferred
    $26,000
    Nontaxable benefits
    $27,794
    Filer's total
    $515,476

  • Paul E Speer

    Chief Operating Officer

    Total calculated
    $358,332
    From this org
    $310,625
    From related orgs
    $0
    Other
    $47,707
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $310,625
    Bonus
    $0
    Other
    $0
    Deferred
    $25,037
    Nontaxable benefits
    $22,670
    Filer's total
    $358,332

  • Linda Hyman

    Director of Education

    Total calculated
    $333,308
    From this org
    $292,423
    From related orgs
    $0
    Other
    $40,885
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $292,423
    Bonus
    $0
    Other
    $0
    Deferred
    $26,988
    Nontaxable benefits
    $13,897
    Filer's total
    $333,308

  • Anne Sylvester

    Director, Division of Research

    Total calculated
    $296,255
    From this org
    $282,970
    From related orgs
    $0
    Other
    $13,285
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $282,969
    Bonus
    $0
    Other
    $0
    Deferred
    $13,285
    Nontaxable benefits
    $0
    Filer's total
    $296,254

  • Joshua Rosenthal

    Senior Scientist

    Total calculated
    $275,495
    From this org
    $239,825
    From related orgs
    $0
    Other
    $35,670
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $239,825
    Bonus
    $0
    Other
    $0
    Deferred
    $13,000
    Nontaxable benefits
    $22,670
    Filer's total
    $275,495

  • Mary S Harrington

    Chief Financial Officer

    Total calculated
    $275,373
    From this org
    $226,703
    From related orgs
    $0
    Other
    $48,670
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $226,702
    Bonus
    $0
    Other
    $0
    Deferred
    $26,000
    Nontaxable benefits
    $22,670
    Filer's total
    $275,372

  • David B Mark Welch

    Senior Scientist

    Total calculated
    $261,953
    From this org
    $195,226
    From related orgs
    $0
    Other
    $66,727
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $195,225
    Bonus
    $0
    Other
    $0
    Deferred
    $25,037
    Nontaxable benefits
    $41,690
    Filer's total
    $261,952

  • Sebastien Laye

    Former Chief Advancement Officer

    Total calculated
    $259,839
    From this org
    $0
    From related orgs
    $223,892
    Other
    $35,947
    Hours/week
    0 + 40 related

    Schedule J breakdown matched by us

    Base
    $0 + $223,892 related
    Bonus
    $0
    Other
    $0
    Deferred
    $0 + $18,589 related
    Nontaxable benefits
    $0 + $17,359 related
    Filer's total
    $0 + $259,840 related

  • Scott Koerner

    Director of Information Technology

    Total calculated
    $228,789
    From this org
    $184,949
    From related orgs
    $0
    Other
    $43,840
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $184,949
    Bonus
    $0
    Other
    $0
    Deferred
    $9,835
    Nontaxable benefits
    $34,005
    Filer's total
    $228,789

  • Jennifer Morgan

    Director of the Eugene Bell Center

    Total calculated
    $225,839
    From this org
    $214,504
    From related orgs
    $0
    Other
    $11,335
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $214,504
    Bonus
    $0
    Other
    $0
    Deferred
    $0
    Nontaxable benefits
    $11,335
    Filer's total
    $225,839

  • Marie Russell

    Director of Facilities and Services

    Total calculated
    $223,997
    From this org
    $212,662
    From related orgs
    $0
    Other
    $11,335
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $212,662
    Bonus
    $0
    Other
    $0
    Deferred
    $0
    Nontaxable benefits
    $11,335
    Filer's total
    $223,997

  • William I Huyett

    Chair of the Board of Trustees

    Total calculated
    $0
    Hours/week
    1

  • Saul J Pannell

    Vice Chair of the Board of Trustees

    Total calculated
    $0
    Hours/week
    1

  • Walter E Massey

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • Brien M OBrien

    Trustee

    Total calculated
    $0
    Hours/week
    0

  • Catherine E Hibbitt

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • Christopher G Kennedy

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • Constance T Keller

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • David A Greene

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • Dyann F Wirth

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • Ethan A Lerner

    Trustee

    Total calculated
    $0
    Hours/week
    1

  • John W McCarter

    Trustee

    Total calculated
    $0
    Hours/week
    1

The first 25 listed. 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 — 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. Earlier years are each on their own filing page.

Filings

  • 2023
    Revenue
    $57,348,551
    Expenses
    $55,742,822
    Contributions
    $44,173,808
    Grants paid
    $4,902,958
  • 2022
    Revenue
    $53,580,215
    Expenses
    $54,031,145
    Contributions
    $44,770,074
    Grants paid
    $4,669,856

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

Nonprofiteer parses the Form 990 only. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2023 return

The first 25 as filed. The return lists every one.

Declared as related by

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.