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FIRST RESERVE
Legal name: FIRST RESERVE MANAGEMENT, L.P.
CRD 157056File 801-73789
APPROVED
Custody
Disclosure events
Filing as of May 8, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$6.31B
Top 25% of cohort (national)
Discretionary AUM
$6.31B
Clients
25
25 accounts
Employees
38
Top 25% of cohort in CT
Identity & registration
ADV Item 1- Organization form
- Limited Partnership
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Mar 30, 2012
- Principal office
- 262 HARBOR DRIVE, 3RD FLOOR, STAMFORD, CT, 06902
- Phone
- 203-661-6601
- Website
- HTTPS://WWW.FIRSTRESERVE.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $6.31B
- Discretionary AUM
- $6.31B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 25
- Non-discretionary accounts
- 0
- Total accounts
- 25
- AUM per client
- $252.2M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Pooled investment vehicles | 25 | $6.31B |
Compensation & activities
ADV Items 5E, 5GCompensation
- Other
- Other (described) — REIMBURSEMENT OF DIRECT EXPENSES TO FIRST RESERVE
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- Yes
- Firm Custody Clients
- Yes
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11- Q11
- Q11C2
- Q11C4
- Q11C5
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Jun 1, 2026 | AUM | $6,314,614,332 | $6,305,728,850 | decreased by$8,885,482 |
| Apr 1, 2026 | Employees | 50 | 38 | decreased by12 |
| Apr 1, 2026 | Clients | 23 | 25 | increased by2 |
| Apr 1, 2026 | AUM | $5,775,098,440 | $6,314,614,332 | increased by$539,515,892 |
| Apr 1, 2026 | Accounts | 23 | 25 | increased by2 |
| Dec 1, 2025 vs May 1, 2025 | AUM | $5,785,243,275 | $5,775,098,440 | decreased by$10,144,835 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 52 | 50 | decreased by2 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 17 | 23 | increased by6 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $5,843,093,832 | $5,785,243,275 | decreased by$57,850,557 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 17 | 23 | increased by6 |
| Jun 1, 2022 | AUM | $5,872,938,918 | $5,843,093,832 | decreased by$29,845,086 |
| Apr 1, 2022 | Employees | 53 | 52 | decreased by1 |
| Apr 1, 2022 | Clients | 18 | 17 | decreased by1 |
| Apr 1, 2022 | AUM | $5,338,044,769 | $5,872,938,918 | increased by$534,894,149 |
| Apr 1, 2022 | Accounts | 18 | 17 | decreased by1 |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “FIRST RESERVE” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“FIRST RESERVE” 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.