Biosergen
SwedenEntry
2004
Hold
22yr
Status
Active
Who owns Biosergen?
Biosergen is a Swedish Biotech company, currently owned by Karolinska Development since 2004.
Hand-verified · updated 2026-06-30
Open JSON · CC-BYMost recent investor
Karolinska DevelopmentKarolinska Development · 2003 · Life Sciences VC
2 ownership periods · full history below
Key facts
HQSweden
SectorBiotech
StatusAcquired
Ownership history
2 ownership periods · co-invest detected
Active
Co-invest · 2 holders · 2004 · present
Karolinska DevelopmentActive
2004 · present(22yr) · Karolinska Development · 2003 · Life Sciences VC
Rosetta CapitalExited 2021
2013 · 2021(8yr) · Rosetta Capital IV · 2013 · Secondaries
IPO
Rosetta Capital took Biosergen public via IPO in 2021 after 8 years.
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USQuestions
Who owns Biosergen?
Biosergen is currently owned by Karolinska Development, through Karolinska Development, since 2004.
When did Karolinska Development acquire Biosergen?
Karolinska Development acquired Biosergen in 2004.
Who has owned Biosergen over time?
Biosergen has been through 2 private-equity ownership periods: Karolinska Development · via Karolinska Development · since 2004; Rosetta Capital · via Rosetta Capital IV · 2013–2021 · (IPO).
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