Spirent Communications Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of SPMY.Y?
Owner Type	Number of Shares	Ownership Percentage
Employee Share Scheme	1,401,992	0.214%
Private Companies	2,209,387	0.336%
Individual Insiders	2,607,501	0.397%
Institutions	650,445,738	99.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 94.24% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.7%	Morgan Stanley	63,010,796	US$166.9m	39.9%	0.02%
8.2%	HSBC Global Asset Management (UK) Limited	48,362,760	US$128.1m	-27%	0.05%
6.92%	BlackRock, Inc.	40,833,506	US$108.2m	4.01%	no data
6.65%	BNP Paribas SA	39,193,807	US$103.8m	0%	0.31%
6.13%	JPMorgan Chase & Co.	36,129,088	US$95.7m	99.5%	0.01%
5.24%	The Vanguard Group, Inc.	30,877,916	US$81.8m	4.82%	no data
5.21%	Barclays Bank PLC	30,710,649	US$81.3m	3.13%	0.08%
5.07%	BNP Paribas Financial Markets SNC	29,910,236	US$79.2m	-26.1%	0.05%
5%	Société Générale Société anonyme	29,470,544	US$78.1m	29.4%	0.34%
4.59%	Columbia Management Investment Advisers, LLC	27,083,672	US$71.7m	0%	0.01%
4.18%	Citigroup Inc.	24,626,641	US$65.2m	91%	0.04%
3.18%	Macquarie Group Limited	18,767,999	US$49.7m	0%	0.24%
2.79%	Jefferies Group LLC	16,455,786	US$43.6m	43.7%	6.3%
2.53%	Merrill Lynch, Pierce, Fenner & Smith Incorporated	14,910,563	US$39.5m	48.7%	0.01%
2.35%	UBS Securities LLC	13,849,187	US$36.7m	354%	-50.4%
2.04%	Nomura Holdings, Inc.	12,033,471	US$31.9m	44.2%	0.09%
2.01%	State Street Global Advisors, Inc.	11,840,170	US$31.4m	2.49%	no data
1.79%	The Bank of Nova Scotia	10,526,752	US$27.9m	-1.83%	0.05%
1.72%	Legal & General Investment Management Limited	10,152,558	US$26.9m	0.29%	0.01%
1.56%	Norges Bank Investment Management	9,223,186	US$24.4m	0%	no data
1.48%	Amundi Asset Management SAS	8,721,357	US$23.1m	-76.4%	no data
1.31%	Dimensional Fund Advisors LP	7,713,275	US$20.4m	0.76%	no data
1.3%	Aberdeen Group Plc	7,684,675	US$20.4m	1.83%	0.01%
1.23%	Skandinaviska Enskilda Banken AB (publ)	7,265,250	US$19.2m	-40%	0.19%
1.08%	SEB Investment Management AB	6,360,327	US$16.8m	26.3%	0.03%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/10/10 23:13
End of Day Share Price	2025/10/10 00:00
Earnings	2025/06/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Spirent Communications plc is covered by 21 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Alban Cousin	Arete Research Services LLP
Gerardus Vos	Barclays
Stuart Jeffrey	Barclays