Old Ironsides Energy
Private Equity SEC-registered adviser
Legal name: Old Ironsides Energy, LLC
Waltham, MA Website
AUM
$1.2B
Regulatory AUM
Private funds
8
Private Equity 8
Private fund assets
$1.2B
Gross asset value
Employees
13
Last Form D raise
Jan 2026
Most recent fund filing
From SEC Form ADV filing (filed Apr 14, 2026). View on SEC
People(2)
Owners and executive officers named on the firm's SEC Form ADV.
D
S
Funds(8)
Private funds reported on Form ADV, with amounts raised from the funds' SEC Form D filings.
| Fund | Type | Gross assets | Raised (Form D) | Investors | Last Form D | Recency |
|---|---|---|---|---|---|---|
| Old Ironsides Pine Wave III, LP | Private Equity | $28.5M | — | — | Jan 2026 | Warm |
| Oie Stream Fund I, LP | Private Equity | $107.5M | — | — | May 2024 | Cold |
| Oie Stream Co-Invest Fund I, LP | Private Equity | $20.8M | — | — | May 2024 | Cold |
| Old Ironsides Brazos Iii-A, LP | Private Equity | $355.4M | — | — | Jun 2023 | Cold |
| Old Ironsides Energy Fund Iii-A, LP | Private Equity | $356.9M | $75.0M | 2 | May 2019 | Cold |
| Old Ironsides Energy Fund Iii-B, LP | Private Equity | $89.1M | $177.5M | 9 | May 2019 | Cold |
| Old Ironsides Energy Fund Ii-A, LP | Private Equity | $214.2M | $60.1M | 2 | Apr 2015 | Cold |
| Old Ironsides Energy Fund Ii-B, LP | Private Equity | $42.5M | $219.0M | 13 | Apr 2015 | Cold |
Board seats
Companies whose SEC Form D filings name one of this firm's people as a director, matched by name and office ZIP code.
No board seats matched from SEC filings yet.
Regulatory identifiers
- CRD number
- 168670
- SEC file number
- 801-78440
Sources
- SEC Form ADV Oct 14, 2026