ATCO Ownership

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

Recent Insider Transactions

DB:8A6 Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
30 Jun 26	Sell€12,315	Rebecca Kalmacoff	Individual	270	€45.61
08 Jun 26	Sell€9,878	Colin Jackson	Individual	225	€43.91
04 Jun 26	Sell€43,791	G. Friesen	Individual	1,000	€43.79
30 Mar 26	Sell€33,264	Adam Beattie	Individual	786	€42.32
06 Mar 26	Sell€1,794,618	Rebecca Penrice	Individual	43,473	€41.76
08 Dec 25	Buy€1,471,850	Nancy Southern	Individual	44,425	€33.32
08 Dec 25	Buy€1,471,850	Linda Southern-Heathcott	Individual	44,425	€33.32
08 Dec 25	Buy€1,471,850	Margaret Southern	Individual	44,425	€33.32
08 Dec 25	Buy€1,471,850	Sentgraf Enterprises Ltd.	Company	44,425	€33.32
25 Nov 25	Sell€1,707	Colin Jackson	Individual	50	€34.15
12 Nov 25	Sell€109,339	Donald Sharpe	Individual	3,189	€34.29
11 Nov 25	Sell€47,157	Kyle Brunner	Individual	1,378	€34.28
10 Nov 25	Sell€10,320	Adam Beattie	Individual	300	€34.44
10 Nov 25	Sell€495,990	Adam Beattie	Individual	14,550	€34.24
06 Nov 25	Sell€48,005	Adam Beattie	Individual	1,400	€34.29
23 Sep 25	Sell€8,866	Christine Simpson	Individual	300	€29.55
22 Sep 25	Buy€1,455,020	Sentgraf Enterprises Ltd.	Company	48,945	€29.78

Insider Trading Volume

Insider Buying: 8A6 insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of 8A6?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	1,112,643	0.989%
Institutions	25,643,255	22.8%
Private Companies	38,529,233	34.2%
General Public	47,242,356	42%

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

Top Shareholders

Top 25 shareholders own 56.1% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
34.2%	Sentgraf Enterprises Ltd.	38,529,233	€1.8b	0%	no data
7.85%	RBC Global Asset Management Inc.	8,833,227	€402.4m	0.02%	0.2%
3.34%	BlackRock, Inc.	3,763,266	€171.5m	7.59%	no data
2.81%	BMO Asset Management Corp.	3,162,273	€144.1m	4.99%	0.05%
1.09%	Energy Income Partners LLC	1,226,588	€55.9m	0.09%	0.97%
1.06%	Dimensional Fund Advisors LP	1,198,411	€54.6m	0.32%	0.01%
0.98%	TD Asset Management, Inc.	1,102,070	€50.2m	15.8%	0.04%
0.64%	Victory Capital Management Inc.	717,539	€32.7m	57.7%	0.02%
0.44%	Nancy Southern	499,999	€22.8m	0%	no data
0.36%	MD Private Trust Company	410,550	€18.7m	-19.4%	1.44%
0.35%	Margaret Southern	394,593	€18.0m	0%	no data
0.35%	Mackenzie Financial Corporation	391,564	€17.8m	0.25%	0.02%
0.3%	Invesco Ltd.	342,497	€15.6m	-9.58%	no data
0.29%	Picton Mahoney Asset Management	321,591	€14.7m	0%	0.17%
0.27%	La Caisse de dépôt et placement du Québec	300,321	€13.7m	0%	0.01%
0.22%	CI Global Asset Management	251,603	€11.5m	-2.25%	0.02%
0.22%	Norges Bank Investment Management	251,603	€11.5m	-73.7%	no data
0.21%	Manulife Asset Management	241,494	€11.0m	23.5%	0.01%
0.2%	SEI Investments Company	222,612	€10.1m	-0.8%	0.01%
0.19%	Charles Schwab Investment Management, Inc.	214,040	€9.8m	14.6%	no data
0.18%	Montrusco Bolton Investments Inc.	207,273	€9.4m	0%	0.13%
0.15%	State Street Investment Management	164,728	€7.5m	0.88%	no data
0.12%	Deka Investment GmbH	138,074	€6.3m	0%	no data
0.11%	Allianz Asset Management GmbH	127,679	€5.8m	0%	0.01%
0.11%	Vanguard Capital Management, LLC	118,610	€5.4m	0.08%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/09/18 09:14
End of Day Share Price	2026/09/18 00:00
Earnings	2026/06/30
Annual Earnings	2025/12/31

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 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

ATCO Ltd. is covered by 9 analysts. 6 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
Benjamin Pham	BMO Capital Markets Equity Research
Mark Jarvi	CIBC Capital Markets
Mark Jarvi	Desjardins Securities Inc.