Atty. Mark Ian Greenberg

Atty. Mark Ian Greenberg

Mark Ian Greenberg is a lawyer practicing financial markets and services, transactions, global finance and 13 other areas of law. Mark received a A.B. degree from Harvard University in 1987, and has been licensed for 35 years.

Chicago Chicago 35 yrs experience 35 year
Call (312) 535-4941 Book Appointment

Profile Summary

About Mark Ian Greenberg at a glance

Mark Ian Greenberg is a Partner based in Chicago, Illinois, practicing at Sidley Austin LLP. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on securities, insurance, and adr. Admitted to practice in Illinois (1991) and U.S. District Court, Northern District of Illinois (1991). Educated at University of Chicago Law School (J.D., 1991) and Harvard University (A.B., 1987). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Ian Greenberg is a lawyer practicing financial markets and services, transactions, global finance and 13 other areas of law
  • Mark received a A.B. degree from Harvard University in 1987, and has been licensed for 35 years
  • Mark practices at Sidley Austin LLP in Chicago, IL

Practice Areas Explained

Mark Ian Greenberg's Areas of Practice

Each practice area below reflects the types of cases Mark Ian Greenberg handles, with a brief overview of what that area of law covers.

Securities Law

Mark Ian Greenberg is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Illinois →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

Mark Ian Greenberg is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in Illinois →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

Mark Ian Greenberg is one of 73,906 adr attorneys indexed nationally. Browse adr attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Illinois courts without local counsel or pro hac vice admission.

Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.

Frequently Asked

Common questions about Mark Ian Greenberg

Where is Mark Ian Greenberg's law office located?
Mark Ian Greenberg's law practice is located in Chicago, Illinois. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does Mark Ian Greenberg handle?
Mark Ian Greenberg focuses on securities, insurance, adr. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark Ian Greenberg practiced law?
Mark Ian Greenberg has 35+ years of legal experience and has been licensed since 1991.
Where did Mark Ian Greenberg go to law school?
Mark Ian Greenberg earned their education at (J.D., 1991); (A.B., 1987).
How can I contact Mark Ian Greenberg for a consultation?
You can contact Mark Ian Greenberg directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark Ian Greenberg received?
Mark Ian Greenberg's notable recognition includes: AV Preeminent.

Education

J.D.
University of Chicago Law School
- 1991
A.B.
Harvard University
- 1987

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1991
U.S. District Court, Northern District of Illinois
Admitted: 1991

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