Senior Associate
Complex Commercial Litigation
Hayley’s principal area of practice is complex commercial litigation.
The following is a list of representative matters in which Hayley has assisted.
(Okla.) – Defending controller and board of directors against breach-of-duty claims in connection with controller’s take-private transaction of energy company; defending energy company in statutory appraisal litigation related to same take-private transaction
(Del. Ch.) – Represented sellers of technology company in Delaware Court of Chancery on breach of contract and fraud claims related to sales pipeline and accounting issues
(Harris Cty.) – Defended CEO of proppant and logistics services company against Texas Securities Act and negligent misrepresentation claims; obtained favorable settlement
(Del. Ch) – Defended fintech company against breach of contract and fraud claims brought by SPAC related to terminated de-SPAC transaction; obtained favorable settlement
(AAA Arbitration) – Represented large investment fund in a week-long arbitration hearing related to a minority owner’s consent and payment rights related to the expansion of a large export facility; presented and cross-examined fact and expert witnesses on finance concepts and contract formation issues
(Del. Ch.) – Obtained dismissal of breach of contract and tortious interference claims on behalf of company and board member related to securities offering
(Del. Ch.) – Defended private equity company in derivative litigation challenging a financing with energy company in which it holds substantial stock
Assisted with a comprehensive investigation into allegations of deficient internal audit practices made by a senior member of a public company’s internal audit team
Representing leading renewable energy company federal securities class action involving allegations of greenwashing
Represented the special committee of the board of directors of a biotechnology company in an internal investigation arising out of possible violations of the federal securities laws
Education
Admissions
Client Alerts
Bounty Hunters: SEC Pays Record Amount to Whistleblower
On May 5, 2023, the Securities and Exchange Commission (“SEC”) issued an order (the “Order”)1 providing that it would pay a $279 million award to a whistleblower who assisted with the enforcement of an action by the SEC and two other related actions brought by unnamed agencies.
May 19, 2023
May 19, 2023 • 6-minute read
Client Alerts
On March 14, 2023, the Securities and Exchange Commission (“SEC”) issued a cease-and-desist order (the “Order”) and charged DXC Technology Company (“DXC”), an IT company based in Virginia, with violations of Rule 100(b) of Regulation G and various other securities laws based on material misstatements in DXC’s non-GAAP financial measures reported in its earnings releases and annual and quarterly reports.
March 29, 2023 • V&E SEC Update
March 29, 2023 • 5-minute read
Client Alerts
Missing Gold: Misappropriation by SPAC CFO Underscores Importance of Internal Controls
On February 22, 2023, the Securities and Exchange Commission (“SEC”) issued a cease-and-desist order (the “Order”) charging African Gold Acquisition Corp. (“African Gold”) with multiple violations of the Securities Exchange Act of 1934 (the “Exchange Act”) related to African Gold’s failure to maintain a sufficient system of internal controls.1
March 9, 2023
March 9, 2023 • 4-minute read
Client Alerts
On January 9, 2023, the Securities and Exchange Commission (“SEC”) issued a cease-and-desist order (the “Order”) charging McDonald’s Corporation (“McDonald’s”) and its ex-CEO, Stephen Easterbrook, with multiple disclosure violations related to Easterbrook’s departure from McDonald’s following his inappropriate relationships with McDonald’s employees.
January 24, 2023
January 24, 2023 • 5-minute read
Awards & Rankings
The Best Lawyers in America (BL Rankings, LLC) has named 125 Vinson & Elkins lawyers in its “Best Lawyers” category in the 2026 edition. Additionally, 76 Vinson & Elkins attorneys have been named in the “Ones to Watch” category, which recognizes lawyers with 5–10 years’ experience. Some individuals are listed in more than one practice area, giving the firm a total of 305 rankings.
August 21, 2025
August 21, 2025 • 3-minute read
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