DIANNE M. NAST
NastLaw LLC
- Address of record
- 1101 Market Street, Suite 2801, Philadelphia, PA 19107, 215-923-9300
- dnast@nastlaw.com
- Phone
- (215) 923-9300
- Fax
- Fax 215-923-9302
Contact details as filed with the court in the cases below.
Case history
Publicly tracked matters where this attorney is listed as counsel.
Archery Products Antitrust Class Action
A proposed class action alleges that defendants engaged in anticompetitive conduct related to archery products, apparently involving price-fixing, market allocation, or other antitrust violations. The case has been designated as multidistrict litigation, suggesting multiple related claims have been consolidated in federal court in Colorado.
- Filed
- October 16, 2025
- Represents
- Jon Borreson
American Society of Health-System Pharmacists Pharmacy Residency Antitrust Class Action
A proposed class action against the American Society of Health-System Pharmacists and other defendants, apparently alleging anticompetitive conduct related to pharmacy residency matching or employment. The docket indicates the court dismissed most claims without prejudice for failure to state a claim, dismissed claims against two defendants for lack of personal jurisdiction, and granted plaintiffs leave to file an amended complaint. These are allegations in a newly filed case, not proven facts and not yet a settlement.
- Filed
- February 28, 2025
- Represents
- Meaghan Walker
Gerber Products Antitrust Class Action
A proposed class action against Gerber Products Company, apparently concerning federal antitrust violations. The nature of suit is listed as Anti-Trust, but the docket text is unavailable, so the specific conduct alleged cannot be described. The allegations are not proven.
- Filed
- September 24, 2024
- Represents
- Thomas Conry, Brittany Cameron, Kelsey Daker, Kathryn Follett, Christina Hall, Danielle Harris, Carey LaVallee, Amy Moore, Ashley Orozco, Jessica Patrich, Hailey Ronayne, Nicole Satterly, Sydney Segretto, Robyn Sussman, Laila Volle, Samantha Zomer
Liquid Aluminum Sulfate Antitrust Settlement
Major manufacturers of liquid aluminum sulfate (Alum) allegedly engaged in a price-fixing conspiracy from 1997 through at least February 2011 to artificially inflate the price of this chemical used in municipal water treatment, causing municipalities and their taxpayers to overpay millions of dollars.
- Claim deadline
- Represents
- CENTRAL ARKANSAS WATER
Blue Cross Blue Shield Antitrust Settlement
Blue Cross Blue Shield companies allegedly violated antitrust laws by entering into an agreement not to compete with each other and to limit competition among themselves in selling health insurance and administrative services. The defendants deny wrongdoing and claim their conduct results in lower healthcare costs and greater access to care. The parties settled to avoid the risk and cost of further litigation.
- Settlement fund
- $2.7B
- Claim deadline
- November 5, 2021
- Represents
- Plaintiffs' Counsel
“Recovery” and “exposure” refer to total disclosed settlement funds in associated cases, not money personally won or lost by an attorney. Settlements generally resolve disputed allegations without a finding that either side won. Data comes from public court dockets and may be incomplete.