William Cassidy Biography and Net Worth

CTO of Janus Henderson Group

William (Bill) Cassidy is Chief Technology Officer at Janus Henderson Investors, a position he has held since 2024. He is responsible for all aspects of the global technology programme, including developing future technology strategy and fostering innovation across the firm. He is a member of the Janus Henderson Executive Committee and the Strategic Leadership Team. Prior to joining the firm, Bill held several roles at New York Life Insurance Company from 2018, most recently as senior vice president, global chief information officer from 2021. Before that, he was global head of reference data at Och-Ziff Capital Management (now Sculptor Capital Management) from 2014 and served as managing director, chief information officer from 2015. Previously, Bill was managing director and global head of data and index services at BlackRock for fourteen years. Earlier, he was senior development manager, back office platforms at Western Asset Management Company from 1999. He began his career as an analyst at Goldman Sachs in 1992 and became vice president, information technology in 1997.

William received a Bachelor of Science degree in computer mathematics with a minor in economics from Long Island University, graduating magna cum laude. He has 34 years of financial industry experience.

What is William B. Cassidy's net worth?: The estimated net worth of William B. Cassidy is at least $6.14 million as of February 27th, 2026. Mr. Cassidy owns 118,939 shares of Janus Henderson Group stock worth more than $6,139,750 as of March 5th. This net worth estimate does not reflect any other assets that Mr. Cassidy may own. Learn More about William B. Cassidy's net worth.
How do I contact William B. Cassidy?: The corporate mailing address for Mr. Cassidy and other Janus Henderson Group executives is 201 BISHOPSGATE, LONDON X0, EC2M 3AE. Janus Henderson Group can also be reached via phone at 442078181818 and via email at [email protected]. Learn More on William B. Cassidy's contact information.
Has William B. Cassidy been buying or selling shares of Janus Henderson Group?: Over the course of the past ninety days, William B. Cassidy has sold $885,819.69 of Janus Henderson Group stock. Most recently, William B. Cassidy sold 16,947 shares of the business's stock in a transaction on Friday, February 27th. The shares were sold at an average price of $52.27, for a transaction totalling $885,819.69. Following the completion of the sale, the chief technology officer now directly owns 118,939 shares of the company's stock, valued at $6,216,941.53. Learn More on William B. Cassidy's trading history.
Who are Janus Henderson Group's active insiders?: Janus Henderson Group's insider roster includes Suzanne Cain (Insider), William Cassidy (CTO), Ali Dibadj (CEO), Kevin Dolan (Director), Georgina Fogo (Insider), Edward Garden (Director), Brennan Hughes (CAO), James Lowry (Global COO), Nelson Peltz (Director), Michelle Rosenberg (Chief Administrative Officer and General Counsel), Glenn Schafer (Director), Anne Sheehan (Director), Anne Sheehan (Director), Roger Thompson (CFO), and Richard Weil (CEO). Learn More on Janus Henderson Group's active insiders.
Are insiders buying or selling shares of Janus Henderson Group?: In the last year, insiders at the sold shares 4 times. They sold a total of 241,070 shares worth more than $11,371,176.19. The most recent insider tranaction occured on February, 27th when CTO William B Cassidy sold 16,947 shares worth more than $885,819.69. Insiders at Janus Henderson Group own 19.6% of the company. Learn More about insider trades at Janus Henderson Group.
Information on this page was last updated on 2/27/2026.

William B. Cassidy Insider Trading History at Janus Henderson Group

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction	Details
2/27/2026	Sell	16,947	$52.27	$885,819.69	118,939

William B. Cassidy Buying and Selling Activity at Janus Henderson Group

Janus Henderson Group Company Overview

Janus Henderson Group plc is an asset management holding entity. Through its subsidiaries, the firm provides services to institutional, retail clients, and high net worth clients. It manages separate client-focused equity and fixed income portfolios. The firm also manages equity, fixed income, and balanced mutual funds for its clients. It invests in public equity and fixed income markets, as well as invests in real estate and private equity. Janus Henderson Group plc was founded in 1934 and is based in London, United Kingdom with additional offices in Jersey, United Kingdom and Sydney, Australia.

Today's Range

Now: $51.50

$51.24

$51.69

50 Day Range

MA: $48.65

$47.57

$53.17

2 Week Range

Now: $51.50

$28.26

$53.76

Volume

1,960,107 shs

Average Volume

2,274,300 shs

Market Capitalization

$7.93 billion

P/E Ratio

9.79

Dividend Yield

3.07%

Beta

1.53