Fund family · SEC Form D record
West Street Infrastructure Partners funds
West Street Infrastructure Partners has 4 vehicles on the SEC Form D record, in 2 numbered generations, filed from 2022 to 2026. The newest is West Street Infrastructure Partners V LP, first filed Jun 11, 2026.
- Vehicles
- 4
- Numbered generations
- 2
- First filing
- 2022
- Latest filing
- Jun 11, 2026
Names, dates and status as filed on SEC EDGAR. A Form D is a notice of an exempt offering; the SEC does not review or approve it. Grouped by name; see the last question below.
Fund V
3 vehicles · first filed
| Vehicle | Sleeve | First filed | Latest filing | Filing record | SEC |
|---|---|---|---|---|---|
| West Street Infrastructure Partners V LPCIK 2081965 | First sale yet to occur | EDGAR | |||
| West Street Infrastructure Partners V Offshore (UB) LPCIK 2081966 | First sale yet to occur | EDGAR | |||
| West Street Infrastructure Partners V Offshore LPCIK 2081967 | First sale yet to occur | EDGAR |
Sold to date and investors
Unlock in the terminal (Investor)Fund IV
1 vehicle · first filed · latest filing
| Vehicle | Sleeve | First filed | Latest filing | Filing record | SEC |
|---|---|---|---|---|---|
| West Street Offshore Infrastructure Partners IV, L.P.CIK 1874483 | Annual amendment overdue | EDGAR |
Sold to date and investors
Unlock in the terminal (Investor)Questions about the West Street Infrastructure Partners funds
- How many West Street Infrastructure Partners funds are there?
- The SEC Form D record shows 4 vehicles in 2 numbered generations, the earliest filed Jan 3, 2022 and the latest filing on Jun 11, 2026. By generation: Fund V (3 vehicles, first filed Jun 11, 2026); Fund IV (West Street Offshore Infrastructure Partners IV, L.P., first filed Jan 3, 2022).
- What is the latest West Street Infrastructure Partners fund?
- West Street Infrastructure Partners V LP, which first filed a Form D on Jun 11, 2026. Its own page carries the filed terms, the people named on the form and every filing on EDGAR.
- Who is the adviser to the West Street Infrastructure Partners funds?
- AltStreet has not joined a Form ADV adviser to this family's Form D filings. The adviser, if any, appears in each fund's offering documents, which a Form D does not include.
- How much have the West Street Infrastructure Partners funds raised?
- Each vehicle reports an amount sold and an investor count on its latest Form D or amendment, and those figures are on each vehicle's entity page. The totals by generation are in the AltStreet Terminal (Investor), where master and parallel sleeves that report one family-wide figure are counted once.
- How does AltStreet group these funds into a family?
- By name: the base name minus the fund number, sleeve letters, jurisdiction and legal form, read from each issuer's Form D (lib/edgar/fundFamilies.ts). 'Fund IV' is generation 4; a vehicle whose name carries no number is listed as unnumbered. It is a name-based grouping, not a statement of common control; the filings on each entity page show the related persons as filed.