Samuel J. Lieberman

Top rated Securities Litigation attorney in New York, New York

Sadis & Goldberg LLP
Samuel J. Lieberman
Sadis & Goldberg LLP

Practice Areas: Securities Litigation, Business Litigation, White Collar Crimes; view more

Licensed in New York since: 2001

Education: Columbia Law School

Languages Spoken: English, Hebrew

Selected to Super Lawyers: 2018 - 2023 Selected to Rising Stars: 2013 - 2014
Virtual Appointments

Sadis & Goldberg LLP

551 5th Avenue
21st Floor
New York, NY 10176 Visit website


Sam Lieberman is Co-Head of Sadis’s Litigation department. He is a tenacious trial lawyer who consistently delivers successful results for high-profile plaintiffs and defendants in securities and business disputes. He regularly represents clients in high-stakes securities, M&A, shareholder rights, blockchain technology, RMBS, and business divorce litigation. He regularly defends clients in investigations by the SEC, FINRA, U.S. Attorneys’ Office, and other regulators.

On the Plaintiffs’ side, Sam has obtained well over $100 million in judgments and recoveries for clients.  As defense counsel, Sam has repeatedly won full dismissal of claims at the pleading stage and at trial, and has had success persuading government regulators to close investigations without bringing any charges.  Sam has been recognized as a leading lawyer or profiled by SuperLawyers, Martindale-Hubbell (AV-rated), the American Lawyer, and the National Law Journal.  

Sam’s representative matters include:


  • Won $57.7 million trial victory as lead counsel for private equity investors in appraisal action. Won a valuation that was 25 times higher than trading price of merger consideration on date of judgment, three times higher than the opposing party’s position, and a substantial premium to deal price.

  • Won $25 million as lead counsel for hedge fund alleging fraudulent valuation of mortgage-backed securities. Forced favorable settlements by defeating motions to dismiss and developing evidence exposing Defendants to significant liability.

  • Won $12.1 million for investors as co-lead counsel in related M&A fiduciary duties & appraisal actions, including winning trial verdict in appraisal action and partial summary judgment in M&A fiduciary duties action. Obtained 195% premium over deal price for all investors.

  • Won over $3.7 million as lead counsel for family office investor in securities litigation over hedge fund investment, after winning Second Circuit appeal reinstating case and ordering trial.

  • Lead counsel representing several large hedge funds as certificateholders of residential mortgage backed securities (RMBS) trusts in disputes over the allocation of write-ups and principal payments.


  • Won recovery of $8 million in Pokadot (DOT) cryptocurrency tokens for a hedge fund from a former officer.

  • Won three of the five largest FINRA Arbitration awards ever against major online broker, at the time, including:

    • $2.4 million FINRA arbitration award for VIX Futures trader arising out of broker’s misstatement of settlement date.

    • $1.9 million FINRA arbitration award for hedge fund arising from the broker’s inability to trade WTI Oil Futures at negative prices. 

  • Won millions of dollars in arbitration awards and favorable settlements for customers against brokers-dealers arising from a range of improper practices.

  • Representing cryptocurrency hedge fund in arbitration against former officer over ownership of MobileCoin cryptocurrency and terms of his termination.


  • Successfully defended Managing Director of investment bank against SEC insider trading claims. Won rare summary disposition dismissing part of SEC’s case. Won favorable settlement reducing nine fraud claims to one negligence claim, with no suspension.

  • Successfully defended executives of multi-billion dollar hedge fund in U.S. Attorneys’ Office and SEC investigation into valuation fraud. No charges filed.

  • Representing fund portfolio manager and venture capital fund in separate ongoing SEC and FINRA investigations focused on cryptocurrency trading and valuation.

  • Successfully defended CIO of $1 Billion-plus investment adviser in SEC investigation into misallocation of expenses and soft-dollar credits. Obtained termination notice with no charges filed against client.

  • Successfully defended broker-dealer and CEO in FINRA investigation into front-running and cross-trading. Obtained letter of caution with no money sanctions, even after S.E.C. referred the investigation to FINRA Department of Enforcement.

  • Successfully defended CEO of broker-dealer in SEC insider trading investigation. S.E.C. closed investigation without bringing any claims.

Sam’s cases have been featured in national, high-profile media publications such as Law360, Bloomberg, the New York Post, The New York Times and the Wall Street Journal. Named Runner Up Litigator of the Week by The American Lawyer, he was also recognized by the National Law Journal on their Appellate Hot List, and has received the the highest AV Preeminent* rating from Martindale-Hubbell.

After graduating with a Bachelor of Arts from Binghamton University in 1996, Sam attended Columbia Law School. A Kent Scholar and Senior Editor of the Columbia Law Review, he earned his Juris Doctor in 1999. 

Sam is admitted to practice in the state of New York, as well as admitted before several federal courts. These include the United States Supreme Court, the United States Court of Appeals for the 2nd Circuit, the United States Court of Appeals for the 3rd Circuit, the United States Court of Appeals for the 5th Circuit, the United States Court of Appeals for the 9th Circuit, the United States District Court for the Southern District of New York and the United States District Court for the Eastern District of New York.

Practice areas

Securities Litigation, Business Litigation, Criminal Defense: White Collar

Focus areas

White Collar Crime

  • 50% Securities Litigation
  • 40% Business Litigation
  • 10% Criminal Defense: White Collar

First Admitted: 2001, New York

Professional Webpage:

Firm News (Newsletters):
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the June 2013 issue: The New Regulatory Landscape for Broker-Dealers Selling Funds: Domestic and International Implications Update on FATCA Compliance for Alternative Investment Funds SEC Brings Record Number of Cases Against Hedge Funds and Other Investment Advisers Compliance Calendar for Investment Advisers Hedge Fund Trends - Shifts in Key Terms Investors in Hedge Funds and Private Equity Funds and Fund Managers Should Consider the Impact of the Fiscal Cliff Tax Deal on their Fund Investments and Fund Structures CFTC Announced that Mandatory Clearing Began on March 11, 2013, New Rule Against Front-Running Block Trades Includes Derivatives Attention: Chief Compliance Officers - Mandatory Compliance Requirement Reminder - Annual Privacy Policy Notification Obligation Delaware Supreme Court Affirms Sadis & Goldberg Appraisal Rights Victory Awarding Its Client Over Two Times the Value of the Merger Price., S&G Investment Manager Alert - June 2013
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the May 2014 issue: The SEC Loses Four High-Profile Trials in a Two-Month Span: Circumstances and Lessons SEC Allows Broader Use of Social Media for Investment Manager Advertising IRS Extends FATCA Registration Deadline and Issues FATCA Registration Guidance on Pending IGAs Key Takeaways from the Long-Awaited Final Volcker Rule Successfully Launching a Hedge Fund SEC Will be Conducting Cybersecurity Examinations of More Than 50 Registered Brokers-Dealers and Registered Investment Advisers Compliance Calendar for Investment Advisers, S&G Investment Manager Alert - May 2014
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the August 2015 issue: SEC Enforcement Division issues new guidance on choosing in-house vs. Federal Courts Major tax case on US lending activities of offshore funds heads to the US tax court Federal Judge criticizes the SEC for “incredible government overreach” SEC proposed rules impact registered investment advisers The SEC’s OCIE provided insight on its private equity industry initiatives and objectives Goldman Sachs former employee beats conviction for theft of high-frequency trading code. Again. SEC issues cybersecurity guidance Compliance Deadlines – Third Quarter Financial crimes enforcement network issues an advisory notice Sadis & Goldberg obtain a favorable settlement of No Bar or Suspension for former executive of an investment bank in high-profile SEC insider trading case., S&G Investment Manager Alert - August 2015
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the October 2012 issue: A More Aggressive SEC Makes Hedge Funds Its No. 1 Target The Supreme Court's Landmark Decision on the Health Reform Legislation Left the New 3.8% Medicare Surtax on Unearned Income Intact High Frequency Trading - Issues Facing Investment Firms Litigation Finance and Litigation Structured Settlements: Elusive Alpha for Alternative Investment Managers JOBS Act Timeline - Enacted April 5, 2012 Update on the JOBS Act - SEC Seeks Comments Before Lifting HF Advertising Restrictions Sadis & Goldberg Comment Letter to the SEC Update on the Impact of FATCA on Alternative Investment Funds CFTC Adopts Final Definition of Swaps, S&G Investment Manager Alert - October 2012
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the January 2014 issue: Fundraising Against the Odds: Considerations for Start-Up Private Equity Fund Managers Recent Federal Tax Developments New World for Emerging Hedge Fund Managers Private Fund Managers: New Form D is in Effect Study Finds That SEC Decides Not to Bring Charges in 20% of Cases Where It Issues a Wells Notice All Private Investment Funds Must Take Steps to Identify Bad Actors Under SEC Rules, S&G Investment Manager Alert - January 2014
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the January 2015 issue: Insurance Dedicated Funds: Private Placement Insurance Make an Unexpected Comeback Family Offices Granted Relief From Registration As Commodity Trading Advisors Insider Trading After the Newman Decision The Latest on Virtual Currency Private Equity Update: In Case You Missed It. Sadis & Goldberg Wins 195% Above Merger Price for Cashed-Out Orchard Stockholders Compliance Calendar for Investment Advisers - First Quarter 2015 SEC Adopts Recommendations for Changing Accredited Investor Definition, S&G Investment Manager Alert - January 2015
  • The S&G Investment Manager Alert, published by Sadis & Goldberg LLP, provides timely information to parties with interests in the alternative investment community. In the March 2016 issue: SEC Loses Appeal of Controversial Flannery Decision SEC & FINRA Release 2016 Exam Priorities FIRPTA and REIT Reform Provisions in New Tax Law Open Door to Increased Foreign Investment in U.S. Real Property Interests The SEC Turns Up the Heat of Private Equity Expense Allocations NextShares Declared Effective by the SEC NFA Adopts Cybersecurity Interpretive Notice Regarding Information Systems Security Programs Compliance Deadlines – March 2016 SEC Proposed Rules Would Require Algorithmic Trading Developers to Register as Securities Traders Miami Broker-Dealer Violates Anti-Money Laundering Protocols and Pays SEC a $1 Million Penalty, S&G Investment Manager Alert - March 2016
Bar/Professional Activity:
  • U.S. Courts of Appeals for the Second, Third, Fifth and Ninth Circuits 
  • U.S. Supreme Court
  • U.S. District Courts for the Southern and Eastern District of New York 
  • Member of the Association of the Bar of the City of New York 
  • Member, American Bar Association Litigation Committee; New York City Bar
  • New York Metro Rising Star – Securities Litigation 2013-2014 
  • Litigator of the Week Runner Up, American Lawyer, April 22, 2019 
  • New York Metro Super Lawyer 2018-2019
  • Editor, Columbia Law Review; Kent Scholar; Law Clerk, Hon. Raymond C. Fisher, U.S. Court of Appeals for Ninth Circuit, 1999-200; Hon. Patricia M. Wald (Ret.), U.S. Court of Appeals for D.C. Circuit, 1999; Corpus Juris Secundum Award for Scholastic Excellence; CALI Excellence for the Future Award
  • Martindale-Hubbell AV Preeminent Peer Rated, Martindale-Hubbell, 2017
  • Sam Lieberman - Recognized, 2010 Appellate Hot List, The National Law Journal, 2010
  • Sam Lieberman - winner in the category of Securities Litigation, Winner in Category of Securities Litigation, Corporate LiveWire Global Awards, 2016
Representative Clients:
  • Hedge funds, Private Equity Funds, Broker-Dealers and Family Offices
Special Licenses/Certifications:
  • Admitted in State of New York, Southern and Eastern Districts of New York, U.S. Court of Appeals for Ninth Circuit; U.S. Supreme Court
Verdicts/Settlements (Case Results):
  • Obtained dismissal of all claims in lawsuit seeking hostile acquisition of 49% interest in financial services company by obtaining dismissal of all claims.  Belesis v. Hudson Fin. Partners, LLC, No. 650692/2012 (N.Y. Sup. Ct., March 11, 2013).
  • Succesfully defended cryptocurrency fund and portfolio manager in investigation by FINRA Department of Enforcement into bitcoin futures losses on OKX exchange.  Obtained FINRA termination letter, with no claims brought against client., 2022
  • Successfully defended blockchain-focused Venture Capital fund against S.E.C. investigation into valuation; obtained S.E.C. termination letter without any claims brought against client, 2022
  • Won full recovery of $8 million of Polkadot cryptocurrency tokens for hedge fund in arbitration to recover assets , 2021
  • Won full defense victory in arbitration for cryptocurrency hedge fund and cryptocurrency inventor against $33 million claims for breach of contract and breach of fiduciary duties by former officer of fund., 2022
  • Won $57.8 million trial verdict in appraisal rights action for minority private equity investor, achieving a significant premium over deal price, and obtaining an investment exit that was over 50 times higher per share than exit price for one of the world's largest private equity firms.   , 2021
  • Cerisano v. Interactive Brokers, LLC, No. 13-03526 (January 14, 2015):  Won $2.4 million FINRA arbitration award for a large trader alleging misstatements about VIX futures, serving as trial counsel handling all ten witnesses during a hearing that spanned two weeks.  This award was more than three times higher than any previous FINRA arbitration award against Interactive Brokers.
  • Christensen v. Twin Focus Capital Partners, LP, No. 13148Y0232-09 (2011):  As trial counsel, obtained complete victory for Respondent in AAA arbitration against claims of negligence and breach of fiduciary duties arising out of investment in fund of funds that had selected Bernard Madoff as one of its underlying advisors.
  • Represented Ader Investment Management in successful short-slate proxy contest against IGT, Inc. board.  Proxy contest coincided with 56% stock price increase related to investment.
  • SEC Ad. Pro. File No. 3-16178 (Securities Act Rel. No. 9795, May 28, 2015): As lead counsel, obtained favorable settlement of high-profile SEC insider trading case, resulting in no bar or suspension, a no admit-no deny settlement of negligence-based claim of Section 17(a)(3) of the Securities Act, and relatively small civil penalty. Won rare award of partial summary disposition against SEC Enforcement Division claims, which provided leverage to negotiate original allegation of nine claims of intentional insider trading down to just one negligence-based claim in final settlement.
  • Orchard Enterps. Appraisal Litig., 2012 WL 2923305 (Del. Ch. July 18, 2012, aff’d Mar. 28, 2013):  Successfully represented appraisal arbitrage hedge fund in obtaining post-trial judgment of 128% above merger price.
  • Represented hedge fund that at one time held $800 million AUM in litigation against SEC, including negotiating favorable settlement after obtaining Court order requiring SEC to amend and refile complaint to address deficiencies raised by motion to dismiss.
  • San Antonio Fire & Police Pension Fund v. Amylin Pharmaceuticals, Inc., et al., 2010 WL 4273171 (Del. Ch. 2010)*: Successfully represented pension fund in precedent-setting challenge to “Proxy Puts,” including post-trial verdict holding majority slate of dissident directors could be elected and approved without triggering Proxy Put and favorable settlements that disabled Proxy Puts in pending and future proxy contests.
  • In re Orchard Enterps. Inc. S’holder Litig., 88 A.3d 1 (Del. Ch. 2014): Successfully represented merger arbitrage hedge fund as Co-Lead Counsel in a fiduciary duty action that recovered 195% above merger price for cashed-out stockholders.  Argued all motion practice, including obtaining partial summary judgment.  Obtained a total class settlement fund of $10.725 million.
  • Successfully represented Senior Managing Director of leading Equity Research and Trading firm in internal investigation into tipping inside information, resulting in finding that client did not violate any investment-related statutes.
Pro bono/Community Service:
  • Member, Pro Bono Panel, U.S. Court of Appeals for the Second Circuit 2006-09
  • Member of the American Technion Society’s Leadership Development Committee 
Educational Background:
  • Binghamton University, Bachelor of Arts (History/Philosophy), 1996
  • Columbia Law School (J.D.; Kent Scholar; Senior Editor, Columbia Law Review), 1999
White Papers:
  • Sullivan v. Harnisch and SEC Proposed Whistleblower Rules Bolster Internal Compliance Programs While Creating Catch-22 for Compliance Officers, 2011
  • Whistleblower rules -- most hedge fund employees can bypass internal compliance but have no remedy for internal report retaliation, 2011
  • The Activist Report Interview with Doug Hirsch and Sam Lieberman Doug Hirsch and Sam Lieberman was interviewed by 13D Monitor for the May 2016 edition of The Activist Report.  Here is an excerpt from the article. 13DM: The size of the activist investor community is growing at an exponential rate. You represent seasoned activists and first-time activists as well as activists across that spectrum. Do you see a difference in how different types of activists are received by boards with whom they engage? Doug Hirsch & Sam Lieberman: Absolutely. I think newer activists have a greater burden to prove their credibility with the board and management. Our seasoned activist clients, who have won proxy contests before, have credibility the moment they arrive.  Boards are much more likely to have meaningful engagement with them. But newer activists need to quickly show a board of directors that they have a serious and significant activist plan. And I think the first impression a new activist makes is critical because a new activist already has an uphill battle to be taken seriously. So the first contact a new activist makes with the board or management can dictate the course of the entire activist campaign., The Activist Report - Ten Questions, 2016
  • Current Trends and Cross-Border Developments, Shareholder Activism in North America, 2014
  • The importance of successfully managing and containing risk events cannot be overstated. This session will provide guidance for a strong compliance culture effectively handling regulatory investigations and succeeding through litigation when necessary. Our presenters will help attendees: minimize reputational risks; determine what a CCO needs to do when a compliance program fails; minimize the damage from regulatory investigations; and effectively litigate enforcement proceeding to successful outcomes., Dealing with the Regulators: Examinations, Investigations and Litigation with SEC and Others, 2015
Scholarly Lectures/Writings:
  • D.C. Circuit Rejects Constitutional Challenge to SEC In-House Courts - Sadis & Goldberg The SEC’s increasing use of in-house courts has drawn criticism as a cynical ploy to increase its chances of winning while avoiding protections available to defendants in federal court – resulting in several constitutional challenges.[1] But the U.S. Court of Appeals for the D.C. Circuit has rejected a Constitutional challenge to the SEC’s use of in-house courts under the Appointments Clause, in Raymond J. Lucia Companies v. S.E.C., (D.C. Cir., Aug. 9, 2016). The SEC’s winning percentage in in-house courts has been 90%, compared to 69% in federal court contested cases.[2] Thus, defendants have challenged the constitutionality of SEC in-house courts to force the SEC into federal court. The D.C. Circuit’s Lucia ruling likely brings an end to this defense tactic and means the SEC’s increasing use of in-house courts is here to stay., D.C. Circuit Rejects Constitutional Challenge to SEC In-House Courts, 2016
  • Columbia Law School (J.D. 1999; Kent Scholar; Senior Editor, Columbia Law Review) 
  • Stewart Conviction Reveals Government Blueprint for Proving Insider Trading Post-Newman - Sadis & Goldberg New York federal prosecutors found a way around U.S. v. Newman to win a major insider trading conviction against Sean Stewart, a former major investment bank Managing Director, which likely will become a blueprint for future tipper-tippee cases. Newman made it harder to prove tipper-tippee insider trading, by requiring “a meaningfully close personal relationship that generates an exchange that … represents at least a potential gain of a pecuniary or similarly valuable nature,” for the tipper. 773 F.3d 438, 452 (2d Cir. 2014). It led to the reversal of over a dozen insider trading convictions, and to government complaints that it “creat[ed] an obvious roadmap for unscrupulous investors” to avoid prosecution.[1] But Stewart’s conviction shows prosecutors may have found a roadmap for success to get around Newman.  , Stewart Conviction Reveals Government Blueprint for Proving Insider Trading Post-Newman, 2016
  • This article summarizes the background of this focus on expense allocations and, drawing from the recent SEC enforcement actions focused on this issue, identifies both the types of expenses and disclosure breakdowns that caught SEC attention and the remedial measures sought by the SEC informing the ensuing settlement arrangements., Co-Author, The SEC Turns Up the Heat on Private Equity Expense Allocations, Journal of Investment Compliance, Accounting And Finance, 2016
  • This article summarizes four recent insider trading trials where the S.E.C. lost the case, and highlights defenses and strategies that lawyers and litigants can use to win against the S.E.C. at trial., Author, "The SEC Loses Four High-Profile Trials in a Four-Month Span: Circumstances and Lessons", Securities Litigation Commentator, 2014
  • This article summarizes the SEC's Whistleblower Rules and identifies gaps and loopholes, including for Chief Compliance Officers, Author, "Sullivan v. Harnisch and Proposed S.E.C. Whistleblower Rules, Hedge Fund Law Report, Hedge Fund; Chief Compliance Officers, 2011
  • SEC Sanctions Apollo $52.7 Million for Misleading Expense Disclosures - Sadis & Goldberg The SEC sent a message to the private equity industry that it will severely punish managers for expense allocation conflicts of interest by sanctioning Apollo Management $52.7 million for misleading disclosures about portfolio monitoring fees.[1]  The SEC’s Order against Apollo is one of several recent cases imposing large fines on private equity titans.  In late – 2015, the SEC imposed $39 million in sanctions against Blackstone Management for similar portfolio monitoring fees issues. In mid – 2015, the SEC imposed $30 million in sanctions against KKR for misallocating broken-deal expenses between Fund investors and co-investors.[2] And the Wall Street Journal has reported that the SEC is investigating private equity titan Silver Lake regarding portfolio monitoring fee acceleration disclosures.[3] The message is clear:  absent express disclosure of expenses raising conflicts of interest, the SEC will impose severe sanctions.  , SEC Sanctions Apollo $52.7 Million for Misleading Expense Disclosures, 2016
  • "The Cooperman Insider Trading Case -- Eery Similarities to Mark Cuban Case,"  117 Hedge Fund Journal 42 (October 2016), available at (Page 44 of .pdf), Cooperman Insider Trading Case Suffers from Same Flaw as SEC’s Loss to Cuban, but is Bolstered by Cooperman Invoking Right Against Self-Incrimination in SEC Testimony, 2016
  • Leon Cooperman just proved that fighting SEC charges is better than settling quickly, by reaching a favorable SEC insider trading settlement after a fierce Court battle. Cooperman fought his SEC insider trading case in Court, and got part of it thrown out on a motion to dismiss.1 He leveraged that victory into a settlement approved on May 22, 2017, which did not impose any industry bar or suspension, rare for an insider trading settlement. In stark contrast, the SEC had earlier sought a five-year industry bar against Cooperman.2 Cooperman’s settlement highlights the importance of retaining counsel that is ready to fight the SEC in Court to achieve the best outcome., Author, Cooperman Insider Trading Settlement, The Hedge Fund Journal, 2017
Other Outstanding Achievements:
  • Corporate LiveWire Global Awards 2016, winner in the category of Securities Litigation, 2016
Industry Groups:
  • Broker Dealers
  • Hedgefunds
  • Private Equity Funds
  • Securities Professionals

Office location for Samuel J. Lieberman

551 5th Avenue
21st Floor
New York, NY 10176

Phone: 212-573-8164


6 Years Super Lawyers
2 Years Rising Stars
  • Super Lawyers: 2018 - 2023
  • Rising Stars: 2013 - 2014

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