Fund family · SEC Form D record
Keystone Bio funds
Keystone Bio has 3 vehicles on the SEC Form D record, in 2 numbered generations, filed from 2019 to 2026. The newest is Keystone Bio SPV II, LP, first filed Mar 13, 2026.
- Vehicles
- 3
- Numbered generations
- 2
- First filing
- 2019
- Latest filing
- Mar 13, 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 II
1 vehicle · first filed
| Vehicle | Sleeve | First filed | Latest filing | Filing record | SEC |
|---|---|---|---|---|---|
| Keystone Bio SPV II, LPCIK 2119404 | Filed within 13 months | EDGAR |
Sold to date and investors
Unlock in the terminal (Investor)Fund I
1 vehicle · first filed
| Vehicle | Sleeve | First filed | Latest filing | Filing record | SEC |
|---|---|---|---|---|---|
| Keystone Bio SPV I, LPCIK 2037201 | Sold the stated amount | EDGAR |
Sold to date and investors
Unlock in the terminal (Investor)Unnumbered
1 vehicle · first filed
| Vehicle | Sleeve | First filed | Latest filing | Filing record | SEC |
|---|---|---|---|---|---|
| Keystone Bio, Inc.CIK 1774842 | Sold the stated amount | EDGAR |
Sold to date and investors
Unlock in the terminal (Investor)Questions about the Keystone Bio funds
- How many Keystone Bio funds are there?
- The SEC Form D record shows 3 vehicles in 2 numbered generations, the earliest filed Apr 29, 2019 and the latest filing on Mar 13, 2026. By generation: Fund II (Keystone Bio SPV II, LP, first filed Mar 13, 2026); Fund I (Keystone Bio SPV I, LP, first filed Sep 12, 2024).
- What is the latest Keystone Bio fund?
- Keystone Bio SPV II, LP, which first filed a Form D on Mar 13, 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 Keystone Bio 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 Keystone Bio 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.