# Co-Investors-IX (Catalyst-C), L.P. — Form D

Co-Investors-IX (Catalyst-C), L.P. of CHICAGO, IL, a pooled investment fund, filed a Form D exempt-offering notice with the SEC on 2026-06-26. Industry: Pooled Investment Fund.

## Offering

- Filed: 2026-06-26
- Form: D
- Accession: 0002139761-26-000001
- Industry: Pooled Investment Fund
- Exemptions: 06b,3C,3C.7
- Security types: equity, fund interests
- Revenue range: Decline to Disclose
- SEC file number: 021-588835

## Issuer

- Name: Co-Investors-IX (Catalyst-C), L.P.
- CIK: 0002139761
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Address: C/O MADISON DEARBORN PARTNERS 70 WEST MADISON STREET, SUITE 4600, CHICAGO, IL, 60602
- Phone: (312) 895-1000

## Officers, directors & promoters (14)

| Name | Role | Location |
| --- | --- | --- |
| BRENDAN BARRETT | Related Person | CHICAGO, IL |
| ELIZABETH Q. BETTEN | Related Person | CHICAGO, IL |
| KARLA J. BULLARD | Related Person | CHICAGO, IL |
| MATTHEW M. DENISON | Related Person | CHICAGO, IL |
| MICHAEL DOLCE | Related Person | CHICAGO, IL |
| VAHE A. DOMBALAGIAN | Related Person | CHICAGO, IL |
| PAUL J. FINNEGAN | Related Person | CHICAGO, IL |
| ALEX FISHER | Related Person | CHICAGO, IL |
| JOHN ERIC KNUTSEN | Related Person | CHICAGO, IL |
| BRANDON LEVITAN | Related Person | CHICAGO, IL |
| MATTHEW W. RAINO | Related Person | CHICAGO, IL |
| TANNER SCOTT | Related Person | CHICAGO, IL |
| Jason Shideler | Related Person | CHICAGO, IL |
| ANNIE S. TERRY | Related Person | CHICAGO, IL |

## More

- [CIK 2139761 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2139761&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0002139761-26-000001.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.
