BioArctic Ownership

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

Recent Insider Transactions

OM:BIOA B Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
18 Dec 25	SellSEK 53,862,500	Lars Lannfelt	Individual	173,750	SEK 310.00
18 Dec 25	SellSEK 53,862,500	Ackelsta AB	Company	173,750	SEK 310.00
12 Dec 25	BuySEK 159,200	Anna-Kaija Gronblad	Individual	500	SEK 318.40
11 Dec 25	SellSEK 158,200	Anna-Kaija Gronblad	Individual	500	SEK 316.40
04 Dec 25	SellSEK 319,600	Mikael Moge	Individual	1,000	SEK 319.60
28 Aug 25	SellSEK 1,176,557	Oskar Bosson	Individual	3,941	SEK 309.20

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 BIOA B?
Owner Type	Number of Shares	Ownership Percentage
General Public	20,860,088	23.5%
Individual Insiders	28,563,667	32.2%
Institutions	39,300,730	44.3%

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

Top Shareholders

Top 25 shareholders own 79.51% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
31.9%	Lars Lannfelt	28,332,050	SEK 9.1b	0.64%	no data
20.2%	Ackelsta AB	17,903,199	SEK 5.8b	0.98%	no data
5.73%	Fourth Swedish National Pension Fund (AP4)	5,080,000	SEK 1.6b	0%	0.54%
3.51%	RA Capital Management, L.P.	3,117,736	SEK 1.0b	0%	1.08%
3.09%	Nordea Investment Management, AB	2,745,136	SEK 885.6m	0%	0.05%
2.77%	E. Öhman J:or Wealth Management	2,459,172	SEK 793.3m	0%	0.8%
2.18%	Handelsbanken Asset Management	1,931,783	SEK 623.2m	0%	0.11%
1.92%	Vanguard Capital Management, LLC	1,706,288	SEK 550.4m	3.08%	no data
1.63%	Tredje AP-fonden	1,444,212	SEK 465.9m	0%	0.13%
1.58%	Unionen	1,400,000	SEK 451.6m	0%	17.61%
1.46%	Swedbank Robur Fonder AB	1,292,558	SEK 417.0m	0%	0.03%
1.03%	BlackRock, Inc.	913,299	SEK 294.6m	9.94%	no data
0.96%	SEB Funds AB	853,700	SEK 275.4m	0%	0.05%
0.38%	Rhenman & Partners Asset Management AB	337,025	SEK 108.7m	0%	0.88%
0.29%	Dimensional Fund Advisors LP	261,369	SEK 84.3m	22%	no data
0.24%	American Century Investment Management Inc	216,915	SEK 70.0m	52.8%	no data
0.11%	Deutsche Asset & Wealth Management	100,453	SEK 32.4m	0%	no data
0.1%	Charles Schwab Investment Management, Inc.	89,404	SEK 28.8m	3.14%	no data
0.1%	Eugen Steiner	89,000	SEK 28.7m	0%	no data
0.081%	Gunilla Osswald	72,000	SEK 23.2m	0%	no data
0.063%	East Capital Financial Services AB	56,000	SEK 18.1m	0%	0.21%
0.042%	Geode Capital Management, LLC	36,848	SEK 11.9m	-1.51%	no data
0.039%	UBS Asset Management AG	34,889	SEK 11.3m	0%	no data
0.038%	State Street Investment Management	34,083	SEK 11.0m	1.95%	no data
0.038%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	33,338	SEK 10.8m	0%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/08/18 06:04
End of Day Share Price	2026/08/18 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

BioArctic AB (publ) is covered by 5 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
Kristofer Liljeberg-Svensson	DNB Carnegie
Rajan Sharma	Goldman Sachs
Viktor Sundberg	Nordea Markets