| Major Shareholders* | % Held |
|---|---|
| Ameriprise Financial, Inc. | 12.74 |
| Aviva plc | 10.12 |
| Standard Life Investments Ltd | 5.29 |
| BlackRock, Inc | 5.00 |
| AXA Investment Managers SA | 4.99 |
| Franklin Templeton Fund Management Limited | 4.98 |
| Brandes Investment Partners (various clients) | 4.99 |
| Prudential plc | 4.98 |
| Aberforth Partners | 4.96 |
| Neptune Investment Management Ltd | 4.87 |
| Artemis Investment Management Limited | 4.77 |
| Schroders plc | 4.41 |
| PrimeStone Capital LLP | 4.32 |
| Teleois Capital Partners LLC | 4.03 |
| Sun Life Assurance Company of Canada (UK) Ltd | 3.82 |
| Kames Capital (fka Global AEGON Asset Management Group) | 3.03 |
| Norges Bank | 2.95 |
*At 22 March 2023 Spirent had been notified of the following significant interest in its Ordinary Shares pursuant to Disclosure and Transparency Rule 5.