Securities Class Actions
Securities
Class Actions
Experienced economists with over thirty years in litigation consulting — specializing in securities class actions, mergers and acquisitions, investment banking, shareholder derivatives, and valuation cases.
PRACTICE AREA · EXPERT WITNESS & CONSULTING
About this practice
PRACTICE OVERVIEW
SEDA's securities class actions practice is spearheaded by experienced economists who have over twenty-five years in litigation consulting. They specialize in securities class actions, mergers and acquisitions, investment banking, shareholder derivatives, and valuation cases.
Their expertise focuses on key areas such as market efficiency, materiality, loss causation, and damage estimation in securities class actions — providing rigorous economic analysis supporting both plaintiffs and defendants at class certification, summary judgment, and trial.
Our practitioners combine deep financial expertise with economic rigor to provide credible and defensible opinions on the most complex securities fraud and class action matters.
WHY SEDA
Over 30 years of securities class action experience — specializing in market efficiency, materiality, loss causation, and damage estimation under Rule 10b-5 and Section 11.
Deep expertise in event study methodology, price impact analysis, inflation ribbon calculations, and aggregate damages estimation for class certification and merits testimony.
Former investment bankers and economists providing integrated financial and economic analysis in securities fraud, IPO liability, and M&A class action matters.
SUB-PRACTICE AREAS
Areas of expertise
01
Market Efficiency & Price Impact
Related: Securities & Derivatives · Capital Markets
02
Loss Causation & Damages
Related: Damages, Forensics & Fraud · Investment Banking
03
Materiality & Disclosure
Related: Investigation & Regulatory Enforcement · Corporate Governance
04
Expert analysis of market efficiency using Cammer and Krogman factors, event studies, and price impact analysis for class certification under Rule 23 in securities fraud cases.
Expert opinions on the materiality of alleged misstatements and omissions, disclosure timing, and the impact of corrective disclosures in securities fraud and IPO liability cases.
Expert testimony on loss causation, price inflation ribbons, disaggregation of price declines, and aggregate damages estimation in securities class actions under the PSLRA.
Expert analysis in M&A-related class actions — including merger price adequacy, fairness opinion challenges, and shareholder derivative claims arising from alleged fiduciary breaches.
M&A Class Actions & Shareholder Derivatives
Related: M&A, Private Equity & Corporate Finance
