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GREEN CENTURY CAPITAL MANAGEMENT INC
CRD 112442File 801-39630
APPROVED
Filing as of Sep 30, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$1.36B
Above cohort median (national)
Discretionary AUM
$1.36B
Clients
3
4 accounts
Employees
16
Above cohort median in MA
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Aug 15, 1991
- Principal office
- 22 BATTERYMARCH STREET STREET SUITE 5A, BOSTON, MA, 02109-2424
- Phone
- 617-482-0800
- Website
- HTTPS://WWW.GREENCENTURY.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $1.36B
- Discretionary AUM
- $1.36B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 4
- Non-discretionary accounts
- 0
- Total accounts
- 4
- AUM per client
- $452.8M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Investment companies | 3 | $1.36B |
Compensation & activities
ADV Items 5E, 5GCompensation
- A percentage of assets under your management
Advisory activities
- Selection of other advisers
- Portfolio management for investment companies
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Oct 1, 2026 | AUM | $1,258,196,265 | $1,358,315,122 | increased by$100,118,857 |
| Aug 17, 2026 | Clients | 4 | 3 | decreased by1 |
| Dec 1, 2025 vs May 1, 2025 | Employees | 15 | 16 | increased by1 |
| Dec 1, 2025 vs May 1, 2025 | AUM | $1,284,681,138 | $1,258,196,265 | decreased by$26,484,873 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 11 | 15 | increased by4 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $998,345,717 | $1,284,681,138 | increased by$286,335,421 |
| Oct 1, 2022 | Employees | 13 | 11 | decreased by2 |
| Oct 1, 2022 | AUM | $1,053,780,845 | $998,345,717 | decreased by$55,435,128 |
| Oct 1, 2021 | Employees | 17 | 13 | decreased by4 |
| Oct 1, 2021 | AUM | $726,102,159 | $1,053,780,845 | increased by$327,678,686 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “GREEN CENTURY” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“GREEN CENTURY” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.