Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.
| Issuer | % of Class | Filed | |||
|---|---|---|---|---|---|
|
Longeveron Inc.
13G
LGVN · 54303L302
|
6.3% |
9/10/2026
Event 9/2/2026
|
|||
| Logos Global Management LP | 6.3% | ||||
| Logos Global Management GP LLC | 6.3% | ||||
| Logos Opportunities Fund V LP | 6.3% | ||||
| Logos Opportunities V GP LLC | 6.3% | ||||
| Arsani William | 6.3% | ||||
| Graham Walmsley | 6.3% | ||||
|
Achieve Life Sciences, Inc.
13G
ACHV · 004468500
|
10.0% |
8/17/2026
Event 5/11/2026
|
|||
| Logos Global Management LP | 10.0% | ||||
| Logos Global Management GP LLC | 10.0% | ||||
| Logos Global Master Fund LP | 5.1% | ||||
| Logos GP LLC | 5.1% | ||||
| Logos Opportunities Fund V LP | 5.0% | ||||
| Logos Opportunities V GP LLC | 5.0% | ||||
| Arsani William | 10.0% | ||||
| Graham Walmsley | 5.0% | ||||
|
Yarrow Bioscience, Inc.
13G/A
Amendment 1
YARW · 92941V407
|
10.7% |
8/7/2026
Event 7/31/2026
|
|||
| Logos Global Management LP | 10.7% | ||||
| Logos Global Management GP LLC | 10.7% | ||||
| Logos Global Master Fund LP | 6.6% | ||||
| Logos GP LLC | 6.6% | ||||
| Logos Opportunities Fund V LP | 4.1% | ||||
| Logos Opportunities V GP LLC | 4.1% | ||||
| Arsani William | 10.7% | ||||
| Graham Walmsley | 4.1% | ||||
|
Yarrow Bioscience, Inc.
13G
YARW · 92941V407
|
9.9% |
8/4/2026
Event 7/27/2026
|
|||
| Logos Global Management LP | 9.9% | ||||
| Logos Global Management GP LLC | 9.9% | ||||
| Logos Global Master Fund LP | 9.9% | ||||
| Logos GP LLC | 9.9% | ||||
| Logos Opportunities Fund V LP | 9.9% | ||||
| Logos Opportunities V GP LLC | 9.9% | ||||
| Arsani William | 9.9% | ||||
| Graham Walmsley | 9.9% | ||||
|
Tenax Therapeutics, Inc.
13G/A
Amendment 1
TENX · 88032L605
|
3.0% |
5/15/2026
Event 3/31/2026
|
|||
| Logos Global Management LP | 3.0% | ||||
| Logos Global Management GP LLC | 3.0% | ||||
| Logos Global Master Fund LP | 3.0% | ||||
| Logos GP LLC | 3.0% | ||||
| Arsani William | 3.0% | ||||
|
Palatin Technologies Inc
13G/A
Amendment 1
PTN · 696077601
|
9.9% |
5/15/2026
Event 3/31/2026
|
|||
| Logos Global Management LP | 9.9% | ||||
| Logos Global Management GP LLC | 9.9% | ||||
| Logos Opportunities Fund IV LP | 9.9% | ||||
| Logos Opportunities Fund IV GP LLC | 9.9% | ||||
| Arsani William | 9.9% | ||||
| Graham Walmsley | 9.9% | ||||
|
iBio, Inc.
13G/A
Amendment 2
IBIO · 451033708
|
0% |
5/15/2026
Event 3/31/2026
|
|||
| Logos Global Management LP | 0% | ||||
| Logos Global Management GP LLC | 0% | ||||
| Logos Global Master Fund LP | 0% | ||||
| Logos GP LLC | 0% | ||||
| Arsani William | 0% | ||||
|
Avalo Therapeutics, Inc.
13G/A
Amendment 1
AVTX · 05338F306
|
3.2% |
5/15/2026
Event 3/31/2026
|
|||
| Logos Global Management LP | 3.2% | ||||
| Logos Global Management GP LLC | 3.2% | ||||
| Logos Global Master Fund LP | 3.2% | ||||
| Logos GP LLC | 3.2% | ||||
| Arsani William | 3.2% | ||||
|
Avalo Therapeutics, Inc.
13G
AVTX · 05338F306
|
5.6% |
4/1/2026
Event 3/26/2026
|
|||
| Logos Global Management LP | 5.6% | ||||
| Logos Global Management GP LLC | 5.6% | ||||
| Logos Global Master Fund LP | 5.6% | ||||
| Logos GP LLC | 5.6% | ||||
| Arsani William | 5.6% | ||||
|
Tenax Therapeutics, Inc.
13G
TENX · 88032L605
|
9.9% |
3/9/2026
Event 2/27/2026
|
|||
| Logos Global Management LP | 9.9% | ||||
| Logos Global Management GP LLC | 9.9% | ||||
| Logos Global Master Fund LP | 9.9% | ||||
| Logos GP LLC | 9.9% | ||||
| Arsani William | 9.9% | ||||
|
iBio, Inc.
13G/A
Amendment 1
IBIO · 451033708
|
4.6% |
2/17/2026
Event 12/31/2025
|
|||
| Logos Global Management LP | 4.6% | ||||
| Logos Global Management GP LLC | 4.6% | ||||
| Logos Global Master Fund LP | 4.6% | ||||
| Logos GP LLC | 4.6% | ||||
| William Arsani | 4.6% | ||||
|
Minerva Neurosciences, Inc.
13G
NERV · 603380205
|
9.9% |
2/17/2026
Event 12/23/2025
|
|||
| Logos Global Management LP | 9.9% | ||||
| Logos Global Management GP LLC | 9.9% | ||||
| Logos Opportunities Fund IV LP | 7.9% | ||||
| Logos Opportunities Fund IV GP LLC | 7.9% | ||||
| William Arsani | 9.9% | ||||
| Graham G. Walmsley | 7.9% | ||||
|
iBio, Inc.
13G
IBIO · 451033708
|
8.9% |
12/19/2025
Event 12/12/2025
|
|||
| Logos Global Management LP | 8.9% | ||||
| Logos Global Management GP LLC | 8.9% | ||||
| Logos Global Master Fund LP | 8.9% | ||||
| Logos GP LLC | 8.9% | ||||
| William Arsani | 8.9% | ||||
|
Design Therapeutics, Inc.
13D/A
Amendment 3
DSGN · 25056L103
|
4.4% |
11/18/2025
Event 11/14/2025
|
|||
| Logos Global Management LP | 4.4% | ||||
| Logos Global Management GP LLC | 4.4% | ||||
| Logos Global Master Fund LP | 2.6% | ||||
| Logos GP LLC | 2.6% | ||||
| Arsani William | 4.4% | ||||
|
Palatin Technologies Inc
13G
PTN · 696077601
|
9.9% |
11/14/2025
Event 11/6/2025
|
|||
| Logos Global Management LP | 9.9% | ||||
| Logos Global Management GP LLC | 9.9% | ||||
| Logos Opportunities Fund IV LP | 9.9% | ||||
| Logos Opportunities Fund IV GP LLC | 9.9% | ||||
| Arsani William | 9.9% | ||||
| Graham Walmsley | 9.9% | ||||
|
Verastem, Inc.
13G/A
Amendment 1
VSTM · 92337C203
|
4.8% |
11/14/2025
Event 9/30/2025
|
|||
| Logos Global Management LP | 4.8% | ||||
| Logos Global Management GP LLC | 4.8% | ||||
| Logos Global Master Fund LP | 4.8% | ||||
| Logos GP LLC | 4.8% | ||||
| Arsani William | 4.8% | ||||
|
Erasca, Inc.
13G/A
Amendment 1
ERAS · 29479A108
|
4.8% |
11/14/2025
Event 9/30/2025
|
|||
| Logos Global Management LP | 4.8% | ||||
| Logos Global Management GP LLC | 4.8% | ||||
| Arsani William | 4.8% | ||||
|
Design Therapeutics, Inc.
13D/A
Amendment 2
DSGN · 25056L103
|
5.7% |
11/12/2025
Event 11/7/2025
|
|||
| Logos Global Management LP | 5.7% | ||||
| Logos Global Management GP LLC | 5.7% | ||||
| Logos Global Master Fund LP | 3.9% | ||||
| Logos GP LLC | 3.9% | ||||
| Arsani William | 5.7% | ||||
|
Arvinas, Inc.
13D/A
Amendment 2
ARVN · 04335A105
|
3.4% |
10/15/2025
Event 10/13/2025
|
|||
| Logos Global Management LP | 3.4% | ||||
| Logos Global Management GP LLC | 3.4% | ||||
| Logos Global Master Fund LP | 2.7% | ||||
| Logos GP LLC | 2.7% | ||||
| Logos Opportunities Fund IV GP LLC | 0.7% | ||||
| Logos Opportunities Fund IV LP | 0.7% | ||||
| Arsani William | 3.4% | ||||
| Graham Walmsley | 0.7% | ||||
|
Arvinas, Inc.
13D/A
Amendment 1
ARVN · 04335A105
|
8.6% |
8/22/2025
Event 8/15/2025
|
|||
| Logos Global Management LP | 8.6% | ||||
| Logos Global Management GP LLC | 8.6% | ||||
| Logos Global Master Fund LP | 6.8% | ||||
| Logos GP LLC | 6.8% | ||||
| Logos Opportunities Fund IV GP LLC | 1.8% | ||||
| Logos Opportunities Fund IV LP | 1.8% | ||||
| Arsani William | 8.6% | ||||
| Graham Walmsley | 1.8% | ||||
|
Erasca, Inc.
13G
ERAS · 29479A108
|
5.3% |
8/14/2025
Event 6/30/2025
|
|||
| Logos Global Management LP | 5.3% | ||||
| Logos Global Management GP LLC | 5.3% | ||||
| Arsani William | 5.3% | ||||
|
Crescent Biopharma, Inc.
13G/A
Amendment 1
CBIO · G2545C104
|
4.1% |
8/14/2025
Event 6/30/2025
|
|||
| Logos Global Management LP | 4.1% | ||||
| Logos Global Management GP LLC | 4.1% | ||||
| Logos Global Master Fund LP | 0.7% | ||||
| Logos GP LLC | 0.7% | ||||
| Arsani William | 4.1% | ||||
|
Prothena Corp Public Ltd Co
13G/A
Amendment 1
PRTA · G72800108
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| Logos Global Management LP | 0% | ||||
| Logos Global Management GP LLC | 0% | ||||
| Logos Global Master Fund LP | 0% | ||||
| Logos GP LLC | 0% | ||||
| Arsani William | 0% | ||||
|
Annexon, Inc.
13G/A
Amendment 1
ANNX · 03589W102
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| Logos Global Management LP | 0% | ||||
| Logos Global Management GP LLC | 0% | ||||
| Logos Global Master Fund LP | 0% | ||||
| Logos GP LLC | 0% | ||||
| Arsani William | 0% | ||||
|
Verastem, Inc.
13G
VSTM · 92337C203
|
6.2% |
7/28/2025
Event 7/21/2025
|
|||
| Logos Global Management LP | 6.2% | ||||
| Logos Global Management GP LLC | 6.2% | ||||
| Logos Global Master Fund LP | 6.2% | ||||
| Logos GP LLC | 6.2% | ||||
| Arsani William | 6.2% | ||||
|
Arvinas, Inc.
13D
ARVN · 04335A105
|
6.4% |
6/16/2025
Event 6/9/2025
|
|||
| Logos Global Management LP | 6.4% | ||||
| Logos Global Management GP LLC | 6.4% | ||||
| Logos Global Master Fund LP | 4.7% | ||||
| Logos GP LLC | 4.7% | ||||
| Logos Opportunities Fund IV GP LLC | 1.7% | ||||
| Logos Opportunities Fund IV LP | 1.7% | ||||
| Arsani William | 6.4% | ||||
| Graham Walmsley | 1.7% | ||||
|
Prothena Corp Public Ltd Co
13G
PRTA · G72800108
|
5.5% |
6/4/2025
Event 5/29/2025
|
|||
| Logos Global Management LP | 5.5% | ||||
| Logos Global Management GP LLC | 5.5% | ||||
| Logos Global Master Fund LP | 5.5% | ||||
| Logos GP LLC | 5.5% | ||||
| Arsani William | 5.5% | ||||
|
Olema Pharmaceuticals, Inc.
13D/A
Amendment 3
OLMA · 68062P106
|
4.7% |
5/13/2025
Event 3/18/2025
|
|||
| Logos Global Management LP | 4.7% | ||||
| Logos Global Management GP LLC | 4.7% | ||||
| Arsani William | 4.7% | ||||
| Graham Walmsley | 4.7% | ||||
| Logos Opportunities GP LLC | 1.0% | ||||
| Logos GP LLC | 3.7% | ||||
|
Annexon, Inc.
13G
ANNX · 03589W102
|
6.0% |
4/28/2025
Event 4/21/2025
|
|||
| Logos Global Management LP | 6.0% | ||||
| Logos Global Management GP LLC | 6.0% | ||||
| Logos Global Master Fund LP | 6.0% | ||||
| Logos GP LLC | 6.0% | ||||
| Arsani William | 6.0% | ||||
|
NextCure, Inc.
13G/A
Amendment 2
NXTC · 65343E108
|
0% |
2/14/2025
Event 12/31/2024
|
|||
| Logos Global Management LP | 0% | ||||
| Logos Global Management GP LLC | 0% | ||||
| Logos Global Master Fund LP | 0% | ||||
| Logos GP LLC | 0% | ||||
| Arsani William | 0% | ||||
|
Elevation Oncology, Inc.
13G/A
Amendment 2
ELEV · 28623U101
|
0% |
2/14/2025
Event 12/31/2024
|
|||
| Logos Global Management LP | 0% | ||||
| Logos Global Master Fund LP | 0% | ||||
| Logos GP LLC | 0% | ||||
| Arsani William | 0% | ||||
| Logos Global Management GP LLC | 0% | ||||