# Beth Seidenberg

Beth Seidenberg of South San Francisco, CA appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 21 filing roles across Form D (20), Form ADV (1).

## Filings (21)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-03-29 | Form ADV | [WESTLAKE BIOPARTNERS, LLC](https://search.stillhousedata.com/firm/299325) | MANAGING DIRECTOR | WESTLAKE VILLAGE, CA |
| 2009-09-25 | Form D | [HX DIAGNOSTICS INC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1455041&type=&dateb=&owner=include&count=40) | Director | DANVILLE, CA |
| 2021-01-05 | Form D | [Sagimet Biosciences Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1400118&type=&dateb=&owner=include&count=40) | Director | SAN MATEO, CA |
| 2009-07-16 | Form D | [iPierian, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1468247&type=&dateb=&owner=include&count=40) | Director | SOUTH SAN FRANCISCO, CA |
| 2014-10-21 | Form D | [Practice Fusion Inc](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1461356&type=&dateb=&owner=include&count=40) | Director | SAN FRANCISCO, CA |
| 2016-06-29 | Form D | [Progyny, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1551306&type=&dateb=&owner=include&count=40) | Director | NEW YORK, NY |
| 2018-04-26 | Form D | [Transform Health Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1557789&type=&dateb=&owner=include&count=40) | Director | NEW YORK, NY |
| 2017-03-31 | Form D | [BREATHE TECHNOLOGIES INC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1361267&type=&dateb=&owner=include&count=40) | Director | Irvine, CA |
| 2019-10-30 | Form D | [Tmunity Therapeutics, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1661702&type=&dateb=&owner=include&count=40) | Director | PHILADELPHIA, PA |
| 2016-06-17 | Form D | [Cell Design Labs, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1663076&type=&dateb=&owner=include&count=40) | Director | LAFAYETTE, CA |
| 2018-01-04 | Form D | [RAPT Therapeutics, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1673772&type=&dateb=&owner=include&count=40) | Director | SOUTH SAN FRANCISCO, CA |
| 2016-10-04 | Form D | [Hixme Insurance Solutions, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1655235&type=&dateb=&owner=include&count=40) | Director | AGOURA HILLS, CA |
| 2017-11-02 | Form D | [Breathe Technologies, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1701956&type=&dateb=&owner=include&count=40) | Director | Irvine, CA |
| 2018-09-04 | Form D | [Westlake BioPartners Fund I, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1749591&type=&dateb=&owner=include&count=40) | Director | WESTLAKE VILLAGE, CA |
| 2021-06-14 | Form D | [Westlake BioPartners Opportunity Fund I, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1811946&type=&dateb=&owner=include&count=40) | Director | WESTLAKE VILLAGE, CA |
| 2020-07-06 | Form D | [Westlake BioPartners Fund II, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1811947&type=&dateb=&owner=include&count=40) | Director | WESTLAKE VILLAGE, CA |
| 2021-02-25 | Form D | [Vera Therapeutics, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1831828&type=&dateb=&owner=include&count=40) | Director | SOUTH SAN FRANCISCO, CA |
| 2024-09-04 | Form D | [Arsenal Biosciences, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1945638&type=&dateb=&owner=include&count=40) | Director | South San Francisco, CA |
| 2023-06-29 | Form D | [Westlake BioPartners Fund III, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1980313&type=&dateb=&owner=include&count=40) | Director | WESTLAKE VILLAGE, CA |
| 2025-02-13 | Form D | [Latigo Biotherapeutics, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2056611&type=&dateb=&owner=include&count=40) | Director | THOUSAND OAKS, CA |
| 2025-10-06 | Form D | [Star Therapeutics LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2088123&type=&dateb=&owner=include&count=40) | Director | SOUTH SAN FRANCISCO, CA |


---

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.