Updated Jul 16, 2026
CASSIDY WILLIAM B has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $886K.

William B. Cassidy is the Chief Technology Officer at Janus Henderson Group PLC, a global investment management firm. He has held this position as part of the company's leadership team, focusing on technology strategies to support investment management services.
| Role | Chief Technology Officer |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-03 | JHG | Janus Henderson Group Ltd. | D — Derivative transaction | 15.9K | — | |
| 2026-07-03 | JHG | Janus Henderson Group Ltd. | A — Grant or award | 15.9K | — | |
| 2026-07-03 | JHG | Janus Henderson Group Ltd. | D — Derivative transaction | 106.1K | — | |
| 2026-07-03 | JHG | Janus Henderson Group Ltd. | D — Derivative transaction | 7.6K | $52.00 | $394K |
| 2026-03-04 | JHG | Janus Henderson Group Ltd. | F — Tax withholding / forfeiture | 5.4K | $51.91 | $280K |
| 2026-03-04 | JHG | Janus Henderson Group Ltd. | S — Open-market sale | 16.9K | $52.27 | $886K |
| 2026-03-04 | JHG | Janus Henderson Group Ltd. | A — Grant or award | 19.8K | $49.00 | $972K |
| 2025-09-02 | JHG | Janus Henderson Group Ltd. | F — Tax withholding / forfeiture | 13.2K | $43.79 | $577K |
William B. Cassidy is the Chief Technology Officer at Janus Henderson Group PLC, a global investment management firm. He has held this position as part of the company's leadership team, focusing on technology strategies to support investment management services.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($886K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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