Rock Island Capital, LLC (Oak Brook)


Rock Island Capital, LLC is a large advisory firm based in Oak Brook. It manages $405.63 million of regulatory assets for 12 client accounts. It has been registered with the SEC as an adviser since 2012 and has operated in the jurisdiction of Illinois.

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Rock Island Capital provides portfolio management for pooled investment vehicles and portfolio company management services. It doesn't provide financial planning services to its clients. On top of advisory services, the firm doesn't engage in other business activities.

Rock Island Capital: assets under management

The assets under management (AUM) of Rock Island Capital, LLC is $405.63 million, all of which is managed in discretionary accounts. The firm's AUM has grown by 244% since the beginning of its operation, and the company doesn't manage any assets belonging to foreign clients.


The firm manages $405.63 million in discretionary accounts. On average, the discretionary accounts where all decisions are made on behalf of the client hold $33.8 million each.

Fees & Commissions

The advisory firm has several streams of revenue. Clients pay Rock Island Capital, LLC for their services and products based on a percentage of assets under management and performance-based fees. Compensation based on assets under management promotes a long-term relationship between a client and the adviser and helps align mutual interests. These fees don’t include brokerage commissions, interest, taxes, and other account expenses.

What kind of clients Rock Island Capital serves?

The only and largest group of clients of Rock Island Capital is pooled investment vehicles with 12 clients and $405.63 million of assets under management. Among the 13 most similar advisory firms, Rock Island Capital has the 3rd highest percentage of pooled investment vehicles out of all clients.


The amount of regulatory assets under management is $405.63 million for 12 clients. None of the firm’s clients are foreign persons or businesses.

Rock Island Capital also advises several private funds. Namely, twelve private equity funds. The minimum investment commitment required of non-related persons ranges from $3,000 to $500,000.

Careers at Rock Island Capital, LLC

The company employs 7 people that are either part- or full-time employees. 100 percent of the employees work as investment advisers or researchers. No employees are registered as investment adviser representatives with the state securities authorities.

There isn’t anyone with the role of looking for and bringing in new clients on behalf of the firm. The firm doesn’t compensate employees in addition to the salary for bringing in new clients. Employees don’t receive compensation from other entities for client referrals.

Direct owners and executive officers



Name Entity Date acquired Ownership Employer ID
Patrick William Hartman Managing member 1 Dec 2005 Other 2501769
Alfred Michael Mattaliano Managing member 1 Dec 2005 Other 2003492
Michael Edward Nugent Managing member 1 Dec 2005 Other 4261706
Llc Gem Holdings Member 1 Dec 2005 Other 48-1251495
David D French Revocable Trust Member 1 Dec 2005 Other 36-4428153
Llc Lanigan Holdings Member 1 Dec 2005 Other 36-4428153
David Dale French Trustee of david d french revocable trust 1 Dec 2005 Other 6915798
Robert Lawrence Zell Chief compliance officer 1 Feb 2012 Other 6032966
Zofie Mietus Chief compliance officer 1 Oct 2013 Other 6272076
Zofia Nmn Mietus Chief compliance officer, chief financial officer 1 Oct 2013 Other 6272076
Patrick William Hartman Member 1 Sep 2017 Other 2501769
Brian Eugene Bastedo Partner, managing member 1 Nov 2018 Other 7043724

Indirect Owners

The SEC currently registers 7 indirect owners.

Name Entity Date acquired Ownership Employer ID
Gregory S Maday Member 1 Dec 2005 50% - 75% 6037059
Elizabeth B Maday Member 1 Dec 2005 50% - 75% 6037060
Lp Lanigan Partners Member 1 Dec 2005 75% - 100% 36-3812163
Lawrence W Vohland Trustee 1 Dec 2005 Other 6097212
Gregory Scott Maday Member 1 Dec 2005 50% - 75% 6037059
Elizabeth Brownlee Maday Member 1 Dec 2005 50% - 75% 6037060
John Joseph Lanigan General partner 1 Dec 2005 Other 6915799

Based in Oak Brook

The principal office where Rock Island Capital, LLC performs its advisory services is located at 1415 W 22 Nd Street, Oak Brook, IL 60523, which is also the mailing address of the firm. It doesn’t run an office outside of the United States.

You can reach the main office by calling the phone number 630-413-9136 or by fax 630-574-0213. The normal business hours are 9:00-5:00 on Monday - Friday. You can find more information about the New York firm at rockislandcapital.com and its LinkedIn profile.