# Long Duration Fund LLC — Form D/A

Long Duration Fund LLC of LOS ANGELES, CA, a pooled investment fund, filed a Form D amendment with the SEC on 2025-06-23. $225.0M was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2025-06-23
- Form: D/A
- Accession: 0001882841-25-000003
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.7
- Amount sold: $225.0M
- Investors: 3
- Date of first sale: 2019-02-01
- Security types: fund interests
- SEC file number: 021-316875

## Issuer

- Name: Long Duration Fund LLC
- CIK: 0001619603
- Entity type: Limited Liability Company
- Jurisdiction: DELAWARE
- Incorporated: 2014
- Address: 11111 Santa Monica Blvd Suite 300, LOS ANGELES, CA, 90025
- Phone: 310-785-9755

## Officers, directors & promoters (10)

| Name | Role | Location |
| --- | --- | --- |
| Scott B Lange | Executive Officer | Los Angeles, CA |
| David B Lindberg | Executive Officer | Los Angeles, CA |
| Dan B Sommers | Executive Officer | Los Angeles, CA |
| John B Wagner | Executive Officer | Los Angeles, CA |
| Dan Sommers | Related Person | LOS ANGELES, CA |
| Scott Lange | Related Person | LOS ANGELES, CA |
| David Lindberg | Related Person | LOS ANGELES, CA |
| Alexander B Lach | Executive Officer | Los Angeles, CA |
| John B. Wagner | Related Person | Los Angeles, CA |
| James Band | Related Person | LOS ANGELES, CA |

## Other filings by this issuer (9)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-06-18](https://search.stillhousedata.com/formd/0001619603-26-000003) | D/A | — | $225.0M |
| [2024-06-24](https://search.stillhousedata.com/formd/0002027857-24-000002) | D/A | — | $225.0M |
| [2023-06-26](https://search.stillhousedata.com/formd/0001982695-23-000004) | D/A | — | $150.0M |
| [2022-07-15](https://search.stillhousedata.com/formd/0001935782-22-000001) | D/A | — | $100.0M |
| [2021-07-15](https://search.stillhousedata.com/formd/0001817792-21-000001) | D/A | — | $75.0M |
| [2020-07-15](https://search.stillhousedata.com/formd/0001817296-20-000002) | D/A | — | $25.0M |
| [2019-07-15](https://search.stillhousedata.com/formd/0001782100-19-000009) | D/A | — | $25.0M |
| [2018-07-13](https://search.stillhousedata.com/formd/0001746145-18-000001) | D | — | — |
| [2014-11-10](https://search.stillhousedata.com/formd/0001140361-14-041036) | D | — | $100.0M |

## More

- [CIK 1619603 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1619603&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001882841-25-000003.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.