Madison Dearborn Capital Partners IX-A, L.P.
Madison Dearborn Capital Partners IX-A, L.P. is a private equity fund based in Chicago, Illinois. According to its most recent Form D, filed Aug 26, 2026, it has sold $1,604,170,731 of interests to 71 investors since its first sale in Sep 2025. The filing does not set a minimum investment. It relies on the Section 3(c)(7) exclusion, so investors generally must be qualified purchasers. The offering uses Rule 506(b), which does not permit general solicitation. Related persons named in the filing include Jason Shideler; Matthew Raino; Vahe Dombalagian.
- Total raised
- $1,604,170,731Cumulative sales reported on Form D
- Investors
- 71
- First sale
- Sep 1, 2025
- Minimum investment
- None set
- Who can invest
- Qualified purchasersSection 3(c)(7): generally $5M+ in investments
- Offering exemption
- Rule 506(b)No general advertising
- Key people and entities
- Jason Shideler; Matthew Raino; Vahe Dombalagian
- Latest Form D
- Aug 26, 2026
From SEC filings, not verified. This page republishes the fund's Form D as filed. It is not an offer, solicitation or recommendation, and AltMountain has not reviewed the fund. “Raised” is cumulative sales, not current assets or performance. Returns are not part of SEC filings. Private funds are speculative, illiquid and generally limited to accredited investors or qualified purchasers. Full disclosures · Request a correction
Questions about Madison Dearborn Capital Partners IX-A, L.P.
What is the minimum investment for Madison Dearborn Capital Partners IX-A, L.P.?
Madison Dearborn Capital Partners IX-A, L.P.'s latest Form D, filed Aug 26, 2026, does not set a minimum investment. Managers can still require one in the offering documents.
Who can invest in Madison Dearborn Capital Partners IX-A, L.P.?
Madison Dearborn Capital Partners IX-A, L.P. is generally open only to qualified purchasers (generally individuals with at least $5 million in investments), because it relies on Section 3(c)(7). It uses Rule 506(b), which does not allow general advertising.
How much has Madison Dearborn Capital Partners IX-A, L.P. raised?
Madison Dearborn Capital Partners IX-A, L.P. reports $1,604,170,731 sold from 71 investors on its Form D filed Aug 26, 2026. This is cumulative sales since the offering began, not current assets or performance.
Where is Madison Dearborn Capital Partners IX-A, L.P. based?
Madison Dearborn Capital Partners IX-A, L.P. is based in Chicago, Illinois and is managed by Madison Dearborn Partners.
When did Madison Dearborn Capital Partners IX-A, L.P. launch?
Madison Dearborn Capital Partners IX-A, L.P. reports its first sale in Sep 2025.
Size compared with every private equity fund
Raised more than 95% of the 491 private equity funds based in Illinois, and more than 96% of all 9,142 that report sales.
Other funds with the same team
- Madison Dearborn Capital Partners IX-B, L.P.$1.6B
- Madison Dearborn Capital Partners IX-C, L.P.$1.6B
- Madison Dearborn Capital Partners IX Executive-A, L.P.$1.6B
- MDP Arevi Fund I-C, L.P.$0
- MDP Arevi Fund I-B, L.P.$0
- MDP Arevi Fund I-A, L.P.$0
- MDP Arevi Fund I Executive-B, L.P.$0
- MDP Arevi Fund I Executive-A, L.P.$0