# William Ericson

William Ericson of Menlo Park, CA appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 13 filing roles across Form D (11), Form ADV (2).

## Filings (13)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-04-01 | Form ADV | [WILDCAT VENTURE PARTNERS, LLC](https://search.stillhousedata.com/firm/288146) | MANAGER AND MEMBER | SAN MATEO, CA |
| 2025-03-31 | Form ADV | [MDV MANAGEMENT CO. L.L.C](https://search.stillhousedata.com/firm/163182) | MANAGING MEMBER - NINTH MDV PARTNERS, LLC | SAN MATEO, CA |
| 2009-05-06 | Form D | [RAINDANCE TECHNOLOGIES INC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1391950&type=&dateb=&owner=include&count=40) | Director | Billerica, MA |
| 2009-12-03 | Form D | [MDV IX LP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1410787&type=&dateb=&owner=include&count=40) | Director | Menlo Park, CA |
| 2009-12-03 | Form D | [MDV VIII L P](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1315917&type=&dateb=&owner=include&count=40) | Director | MENLO PARK, CA |
| 2009-12-03 | Form D | [MDV VII LP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1129541&type=&dateb=&owner=include&count=40) | Director | MENLO PARK, CA |
| 2012-01-20 | Form D | [FINSPHERE CORP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1435845&type=&dateb=&owner=include&count=40) | Director | BELLEVUE, WA |
| 2014-09-25 | Form D | [Rocket Fuel Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1477200&type=&dateb=&owner=include&count=40) | Director | REDWOOD CITY, CA |
| 2013-11-12 | Form D | [AudienceScience Inc](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1304082&type=&dateb=&owner=include&count=40) | Director | BELLEVUE, WA |
| 2011-03-02 | Form D | [CARDIODX INC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1304909&type=&dateb=&owner=include&count=40) | Director | PALO ALTO, CA |
| 2019-03-11 | Form D | [Splice Machine Inc](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1557701&type=&dateb=&owner=include&count=40) | Director | MENLO PARK, CA |
| 2016-12-16 | Form D | [Wildcat Technology Partners 2015, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1628488&type=&dateb=&owner=include&count=40) | Director | SAN MATEO, CA |
| 2018-11-20 | Form D | [Wildcat Technology Partners II, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1759572&type=&dateb=&owner=include&count=40) | Executive Officer | SAN MATEO, CA |


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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.