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13G filed by BIOTECHNOLOGY VALUE FUND L P

BIOTECHNOLOGY VALUE FUND L P and 9 other reporting persons reported 3,608,968 STOK shares, 5.6% of the class, as of 2026-09-23, in a 13G accepted by EDGAR 2026-09-30 22:30:29 UTC.

Accession
0000921895-26-002685
Filed
2026-09-30
Accepted by EDGAR
Ingested
Source
EDGAR daily index

Original filing

Stake

Shares
3,608,968
Percent of class
5.6%
Event date
2026-09-23

How the shares relate across the reporting persons: ambiguous: the persons may hold separate positions, so the group total can be higher. The page shows the largest row.

Read for the filer group BVF INC/IL.

Reporting persons

PersonTypeSole votingShared votingSole dispositiveShared dispositiveAggregatePercent
BIOTECHNOLOGY VALUE FUND L PPN01,866,76101,866,7611,866,7612.9%
BVF I GP LLCOO01,866,76101,866,7611,866,7612.9%
BIOTECHNOLOGY VALUE FUND II LPPN01,404,26301,404,2631,404,2632.2%
BVF II GP LLCOO01,404,26301,404,2631,404,2632.2%
Biotechnology Value Trading Fund OS LPPN0261,0060261,006261,0060.4%
BVF Partners OS Ltd.CO0261,0060261,006261,0060.4%
BVF GP HOLDINGS LLCOO03,271,02403,271,0243,271,0245.1%
BVF PARTNERS L P/ILIA,PN03,608,96803,608,9683,608,9685.6%
BVF INC/ILCO03,608,96803,608,9683,608,9685.6%
LAMPERT MARK NIN03,608,96803,608,9683,608,9685.6%