ASP Isotopes Ownership

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

Recent Insider Transactions

BST:W62 Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
18 Dec 25	Sell€395,006	Heather Kiessling	Individual	80,000	€4.94
30 Sep 25	Sell€532,037	Michael Gorley	Individual	64,000	€8.31
29 Aug 25	Sell€595,209	Duncan Moore	Individual	75,000	€7.94

Insider Trading Volume

Insider Buying: W62 insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of W62?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	2,097,474	1.68%
Hedge Funds	6,413,362	5.13%
Individual Insiders	17,012,629	13.6%
General Public	38,635,919	30.9%
Institutions	60,950,738	48.7%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 75.2%.

Top Shareholders

Top 25 shareholders own 57.16% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
6.07%	Paul Mann	7,597,385	€35.1m	-2.09%	no data
5.43%	BlackRock, Inc.	6,789,417	€31.4m	24.3%	no data
5.13%	Encompass Capital Advisors LLC	6,413,362	€29.6m	1,180%	1.29%
5.12%	The Vanguard Group, Inc.	6,406,244	€29.6m	41.8%	no data
3.96%	AK Jensen Investment Management Limited	4,955,261	€22.9m	0%	40.63%
3.91%	Alyeska Investment Group, L.P.	4,895,546	€22.6m	73.4%	0.08%
3.28%	Rovida Investment Management Limited	4,100,000	€19.0m	28.1%	2.43%
3.07%	Sergey Vasnetsov	3,838,607	€17.7m	0%	no data
2.01%	UBS Asset Management AG	2,508,833	€11.6m	161%	no data
1.91%	Geode Capital Management, LLC	2,384,066	€11.0m	28%	no data
1.7%	AWM Investment Company Inc	2,124,496	€9.8m	-28.2%	1.18%
1.68%	Tianne Holdings (Pty) Ltd	2,097,474	€9.7m	0%	no data
1.47%	State Street Global Advisors, Inc.	1,844,405	€8.5m	31.2%	no data
1.38%	Citadel Advisors LLC	1,725,553	€8.0m	48%	0.01%
1.35%	Morgan Stanley	1,684,663	€7.8m	305%	no data
1.31%	The Goldman Sachs Group, Inc.	1,634,150	€7.6m	408%	no data
1.27%	Jane Street Group, LLC	1,586,961	€7.3m	30.2%	0.01%
1.23%	Robert Ainscow	1,537,817	€7.1m	-0.55%	no data
1.21%	Susquehanna International Group, LLP	1,516,643	€7.0m	13%	0.01%
1.12%	Exchange Traded Concepts, LLC	1,400,314	€6.5m	16.1%	0.06%
0.79%	Duncan Moore	994,553	€4.6m	0%	no data
0.75%	BNPP Asset Management Holding	944,326	€4.4m	42.2%	0.01%
0.71%	Charles Schwab Investment Management, Inc.	885,739	€4.1m	33.8%	no data
0.66%	Telemark Asset Management, LLC	825,000	€3.8m	-37.7%	0.46%
0.65%	Marshall Wace LLP	818,129	€3.8m	-36%	0.01%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/03/15 00:33
End of Day Share Price	2026/03/13 00:00
Earnings	2025/09/30
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

ASP Isotopes Inc. is covered by 4 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
George Gianarikas	Canaccord Genuity
null null	Cantor Fitzgerald & Co.
Derek Soderberg	Cantor Fitzgerald & Co.