Devyser Diagnostics Ownership

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

Recent Insider Transactions

BST:OL0 Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
10 Jun 26	Buy€640,496	Mia Arnhult	Individual	76,251	€8.40
22 May 26	Buy€26,712	Jan Wahlstrom	Individual	3,045	€8.89
20 Mar 26	Buy€10,910	Mia Arnhult	Individual	1,500	€7.36
21 Nov 25	Buy€1,286	Mia Arnhult	Individual	135	€9.53
07 Nov 25	Buy€140,794	Mia Arnhult	Individual	14,084	€10.00

Insider Trading Volume

Insider Buying: OL0 insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of OL0?
Owner Type	Number of Shares	Ownership Percentage
Institutions	8,902,224	48.6%
Individual Insiders	9,415,815	51.4%

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

Top Shareholders

Top 25 shareholders own 108.91% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
24.7%	Mia Arnhult	4,151,633	€23.2m	2.12%	no data
24.1%	Jakob Morndal	4,039,204	€22.5m	0%	no data
6.72%	Nordnet AB (publ)	1,127,768	€6.3m	0%	0.64%
5.86%	Premier Fund Managers Ltd.	983,500	€5.5m	-1.37%	0.1%
5.81%	Nordnet Pensionsförsäkring AB	976,225	€5.4m	-0.96%	0.68%
5.62%	Deka Investment GmbH	944,000	€5.3m	19.8%	no data
4.53%	Fourth Swedish National Pension Fund (AP4)	759,821	€4.2m	0%	0.02%
4.49%	Handelsbanken Asset Management	753,000	€4.2m	0%	0.01%
3.96%	Asa Riisberg	664,294	€3.7m	0%	no data
3.84%	Swedbank Robur AB	645,000	€3.6m	0%	0.66%
3.11%	Protean Funds Scandinavia AB	521,572	€2.9m	32.1%	14.05%
2.69%	Healthinvest Partners AB	451,374	€2.5m	0%	0.81%
2.61%	Janus Henderson Investors	438,846	€2.4m	0%	0.54%
2.13%	Joh. Berenberg, Gossler & Co. KG	357,037	€2.0m	0%	0.1%
2.1%	Anders Hedrum	353,198	€2.0m	0%	no data
1.4%	Schroder Investment Management Limited	234,461	€1.3m	0%	no data
1.22%	Polar Capital Holdings Plc	205,120	€1.1m	-34.4%	no data
1.13%	Carnegie Fonder AB	190,000	€1.1m	0%	0.02%
1.04%	Fondita Rahastoyhtio AB	175,000	€976.1k	0%	0.25%
0.63%	Thomas Eklund	105,405	€587.9k	0%	no data
0.48%	Evli Fund Management Company Ltd.	80,000	€446.2k	0%	0.01%
0.28%	Barius Capital Management GmbH	47,000	€262.1k	0%	3.36%
0.26%	Fredrik Dahl	44,150	€246.3k	0%	no data
0.12%	Theis Kipling	20,839	€116.2k	0%	no data
0.1%	Olle Myrberg	16,739	€93.4k	0%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/07/09 11:25
End of Day Share Price	2026/07/09 00:00
Earnings	2026/03/31
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 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

Devyser Diagnostics AB (publ) is covered by 4 analysts. 3 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
Erik Hultgård	Carnegie Investment Bank AB
Erik Hultgård	DNB Carnegie
Ludvig Lundgren	Nordea Markets