Investment adviser · CRD 109962

ESSEX INVESTMENT MANAGEMENT COMPANY, LLC

Investment adviser filing (IA)

BOSTON, MA, United States · Form ADV filed Mar 30, 2026

Regulatory AUM: $713M
Client accounts: 117
Employees: 13
Advisory professionals: 9

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client type	Clients	Regulatory assets	Share of AUM
Government entities	8	$226,855,136	31.8%
High-net-worth individuals	55	$130,392,300	18.3%
Investment companies	2	$122,987,038	17.3%
Charities	14	$79,091,587	11.1%
Individuals	35	$78,404,767	11.0%
Pooled investment vehicles	2	$68,777,482	9.7%
Retirement plans	Fewer than 5	$6,168,133	0.9%

Filing source

Form ADV 2053778 · Mar 30, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

18 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

ESSEX GLOBAL LIFE SCIENCES FUND, LPHedge Fund · Last reported Dec 16, 2019$16.7MGross asset value

Form D fundraising filings

Essex Global Life Sciences Fund, LP

Fund administrator FINANCIAL SOLUTIONS ACCOUNTING & ADMINISTRATIVE SERVICES, INC. SAGAMORE BEACH, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor WITHUM SMITH+BROWN, PC BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Marketer HAMERSLEY PARTNERS LLC WELLESLEY, Massachusetts, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: Yes

WITHUM SMITH+BROWN, PC
PCAOB 100

MORGAN STANLEY & CO. LLC
SEC 8-15869

HAMERSLEY PARTNERS LLC
CRD 131134 · SEC 8-66427

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-2755250625
Reported beneficial owners: 5
Minimum commitment: $500K
Form D file number: 021-150594

Form ADV 1362666 · Dec 16, 2019 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX PERFORMANCE FUND, LPHedge Fund · Last reported Apr 24, 2024$13.7MGross asset value

Form D fundraising filings

ESSEX PERFORMANCE FUND, LP

Auditor WITHUM SMITH+BROWN, PC BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

WITHUM SMITH+BROWN, PC
PCAOB 100

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-3195538984
Reported beneficial owners: 7
Minimum commitment: $500K
Form D file number: 021-149786

Form ADV 1869351 · Apr 24, 2024 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX EVOLUTION LONG/SHORT FUND, LLCHedge Fund · Last reported Dec 7, 2023$12.8MGross asset value

Form D fundraising filings

Essex Evolution Long/Short Fund, LLC

Auditor WITHUM SMITH+ BROWN, PC BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

WITHUM SMITH+ BROWN, PC
PCAOB 100

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-4057338416
Reported beneficial owners: 2
Minimum commitment: $500K
Form D file number: 021-330476

Form ADV 1804948 · Dec 7, 2023 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX CLIMATE CHANGE FUND, LLCHedge Fund · Last reported May 24, 2017$4.87MGross asset value

Form D fundraising filings

Essex Climate Change Fund, LLC

Auditor WITHUM SMITH+BROWN, PC BOSTON, Massachusetts, United States

Custodian STATE STREET BANK QUINCY, Massachusetts, United States Related to adviser: No

Marketer HAMERSLEY PARTNERS LLC WELLESLEY, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: Yes

HAMERSLEY PARTNERS LLC
CRD 131134 · SEC 8-66427

Fund details & source

Fund ID: 805-6305762470
Reported beneficial owners: 5
Minimum commitment: $500K
Form D file number: 021-167614

Form ADV 1115429 · May 24, 2017 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX LONG SHORT FUND, LLCHedge Fund · Last reported Nov 5, 2012$3.74MGross asset value

Form D fundraising filings

Essex Long Short Fund, LLC

Auditor WALSH, JASTREM & BROWNE, LLP BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-3950415928
Reported beneficial owners: 2
Minimum commitment: $500K
Form D file number: 021-153700

Form ADV 678366 · Nov 5, 2012 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX NATURAL RESOURCES FUND, LLCHedge Fund · Last reported May 27, 2014$3.7MGross asset value

Form D fundraising filings

ESSEX NATURAL RESOURCES FUND LLC

Auditor WALSH, JASTREM & BROWNE, LLP BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-4905634482
Reported beneficial owners: 2
Minimum commitment: $500K
Form D file number: 021-80464

Form ADV 826286 · May 27, 2014 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

ESSEX FLEXPORT FUND, LPHedge Fund · Last reported May 27, 2014$2.32MGross asset value

Form D fundraising filings

Essex Flexport Fund, L.P.

Auditor WALSH, JASTREM & BROWNE, LLP BOSTON, Massachusetts, United States

Custodian MORGAN STANLEY & CO. LLC NEW YORK, New York, United States Related to adviser: No

Prime broker MORGAN STANLEY & CO. LLC NEW YORK, New York, United States

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

MORGAN STANLEY & CO. LLC
SEC 8-15869

MORGAN STANLEY & CO. LLC
CRD 8209 · SEC 8-15869

Fund details & source

Fund ID: 805-7814682642
Reported beneficial owners: 5
Minimum commitment: $500K
Form D file number: 021-149787

Form ADV 826286 · May 27, 2014 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Services & filing details

Most recent filing: Mar 30, 2026. View historical filings

Reported services

Individual portfolio management · Investment company portfolio management · Pooled investment vehicle management · Business portfolio management

Compensation

Percentage of assets

Principal office

125 HIGH STREET, SUITE 1803
BOSTON, MA, 02110, United States

CRD 109962

Filing source

Form ADV 2053778 · Mar 30, 2026 · Items 1 & 5

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.