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 | |||
|---|---|---|---|---|---|
|
Femasys Inc
13G
FEMY · 31447E204
|
7.2% |
8/31/2026
Event 8/10/2026
|
|||
| Stonepine Capital Management, LLC | 7.2% | ||||
| Stonepine Capital, L.P. | 7.2% | ||||
| Stonepine GP, LLC | 7.2% | ||||
| Jon M. Plexico | 7.2% | ||||
|
Edesa Biotech, Inc.
13G
EDSA · 27966L306
|
6.9% |
8/26/2026
Event 8/20/2026
|
|||
| Stonepine Capital Management, LLC | 6.9% | ||||
| Stonepine Capital, L.P. | 6.9% | ||||
| Stonepine GP, LLC | 6.9% | ||||
| Jon M. Plexico | 6.9% | ||||
|
CalciMedica, Inc.
13G
CALC · 38942Q202
|
6.0% |
8/25/2026
Event 8/19/2026
|
|||
| Stonepine Capital Management, LLC | 6.0% | ||||
| Stonepine Capital, L.P. | 6.0% | ||||
| Stonepine GP, LLC | 6.0% | ||||
| Jon M. Plexico | 6.0% | ||||
|
AEON Biopharma, Inc.
13G
AEON · 00791X209
|
9.9% |
7/21/2026
Event 7/15/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Pasithea Therapeutics Corp.
13G
KTTA · 70261F202
|
5.8% |
6/23/2026
Event 6/17/2026
|
|||
| Stonepine Capital Management, LLC | 5.8% | ||||
| Stonepine Capital, L.P. | 5.8% | ||||
| Stonepine GP, LLC | 5.8% | ||||
| Jon M. Plexico | 5.8% | ||||
|
Azitra, Inc.
13G
AZTR · 05479L203
|
9.9% |
6/22/2026
Event 6/16/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Eloxx Pharmaceuticals, Inc.
13G
ELOX · 29014R301
|
9.9% |
6/16/2026
Event 6/9/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
SINTX Technologies, Inc.
13G
SINT · 829392703
|
9.9% |
6/9/2026
Event 6/2/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Tenax Therapeutics, Inc.
13G/A
Amendment 2
TENX · 88032L605
|
3.7% |
5/15/2026
Event 3/31/2026
|
|||
| Stonepine Capital Management, LLC | 3.7% | ||||
| Stonepine Capital, L.P. | 3.7% | ||||
| Stonepine GP, LLC | 3.7% | ||||
| Jon M. Plexico | 3.7% | ||||
|
Quoin Pharmaceuticals, Ltd.
13G/A
Amendment 2
QNRX · 74907L409
|
10.0% |
5/15/2026
Event 3/31/2026
|
|||
| Stonepine Capital Management, LLC | 10.0% | ||||
| Stonepine Capital, L.P. | 10.0% | ||||
| Stonepine GP, LLC | 10.0% | ||||
| Jon M. Plexico | 10.0% | ||||
|
Edesa Biotech, Inc.
13G/A
Amendment 1
EDSA · 27966L306
|
0.3% |
5/15/2026
Event 3/31/2026
|
|||
| Stonepine Capital Management, LLC | 0.3% | ||||
| Stonepine Capital, L.P. | 0.3% | ||||
| Stonepine GP, LLC | 0.3% | ||||
| Jon M. Plexico | 0.3% | ||||
|
CNS Pharmaceuticals, Inc.
13G/A
Amendment 2
CNSP · 18978H508
|
9.9% |
5/15/2026
Event 3/31/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Cellectar Biosciences, Inc.
13G
CLRB · 15117F880
|
9.9% |
5/11/2026
Event 5/4/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Curis Inc
13G
CRIS · 231269309
|
9.9% |
3/27/2026
Event 3/17/2026
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Surrozen, Inc./DE
13G/A
Amendment 4
SRZN · 86889P208
|
3.6% |
2/13/2026
Event 12/31/2025
|
|||
| Stonepine Capital Management, LLC | 3.6% | ||||
| Stonepine Capital, L.P. | 3.6% | ||||
| Stonepine GP, LLC | 3.6% | ||||
| Jon M. Plexico | 3.6% | ||||
|
CNS Pharmaceuticals, Inc.
13G/A
Amendment 1
CNSP · 18978H508
|
7.9% |
2/13/2026
Event 12/31/2025
|
|||
| Stonepine Capital Management, LLC | 7.9% | ||||
| Stonepine Capital, L.P. | 7.9% | ||||
| Stonepine GP, LLC | 7.9% | ||||
| Jon M. Plexico | 7.9% | ||||
|
Kezar Life Sciences, Inc.
13G/A
Amendment 1
KZR · 49372L209
|
2.1% |
2/13/2026
Event 12/31/2025
|
|||
| Stonepine Capital Management, LLC | 2.1% | ||||
| Stonepine Capital, L.P. | 2.1% | ||||
| Stonepine GP, LLC | 2.1% | ||||
| Jon M. Plexico | 2.1% | ||||
|
Quoin Pharmaceuticals, Ltd.
13G/A
Amendment 1
QNRX · 74907L409
|
10.6% |
2/2/2026
Event 1/29/2026
|
|||
| Stonepine Capital Management, LLC | 10.6% | ||||
| Stonepine Capital, L.P. | 10.6% | ||||
| Stonepine GP, LLC | 10.6% | ||||
| Jon M. Plexico | 10.6% | ||||
|
IN8BIO, Inc.
13G
INAB · 45674E208
|
9.9% |
12/22/2025
Event 12/19/2025
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Quoin Pharmaceuticals, Ltd.
13G
QNRX · 74907L409
|
9.9% |
12/16/2025
Event 12/10/2025
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Verastem, Inc.
13G/A
Amendment 1
VSTM · 92337C203
|
4.3% |
11/13/2025
Event 9/30/2025
|
|||
| Stonepine Capital Management, LLC | 4.3% | ||||
| Stonepine Capital, L.P. | 4.3% | ||||
| Stonepine GP, LLC | 4.3% | ||||
| Jon M. Plexico | 4.3% | ||||
|
CNS Pharmaceuticals, Inc.
13G
CNSP · 18978H508
|
5.6% |
11/4/2025
Event 10/29/2025
|
|||
| Stonepine Capital Management, LLC | 5.6% | ||||
| Stonepine Capital, L.P. | 5.6% | ||||
| Stonepine GP, LLC | 5.6% | ||||
| Jon M. Plexico | 5.6% | ||||
|
Kezar Life Sciences, Inc.
13G
KZR · 49372L209
|
5.2% |
9/8/2025
Event 9/2/2025
|
|||
| Stonepine Capital Management, LLC | 5.2% | ||||
| Stonepine Capital, L.P. | 5.2% | ||||
| Stonepine GP, LLC | 5.2% | ||||
| Jon M. Plexico | 5.2% | ||||
|
Aytu Biopharma, Inc
13G/A
Amendment 3
AYTU · 054754858
|
9.9% |
8/13/2025
Event 6/30/2025
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
Surrozen, Inc./DE
13G/A
Amendment 3
SRZN · 86889P208
|
5.8% |
8/13/2025
Event 6/30/2025
|
|||
| Stonepine Capital Management, LLC | 5.8% | ||||
| Stonepine Capital, L.P. | 5.8% | ||||
| Stonepine GP, LLC | 5.8% | ||||
| Jon M. Plexico | 5.8% | ||||
|
Verastem, Inc.
13G
VSTM · 92337C203
|
5.0% |
8/6/2025
Event 7/22/2025
|
|||
| Stonepine Capital Management, LLC | 5.0% | ||||
| Stonepine Capital, L.P. | 5.0% | ||||
| Stonepine GP, LLC | 5.0% | ||||
| Jon M. Plexico | 5.0% | ||||
|
Surrozen, Inc./DE
13G/A
Amendment 2
SRZN · 86889P208
|
9.9% |
5/14/2025
Event 3/31/2025
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
OptiNose, Inc.
13G/A
Amendment 2
OPTN · 68404V209
|
7.8% |
5/14/2025
Event 3/31/2025
|
|||
| Stonepine Capital Management, LLC | 7.8% | ||||
| Stonepine Capital, L.P. | 7.8% | ||||
| Stonepine GP, LLC | 7.8% | ||||
| Jon M. Plexico | 7.8% | ||||
|
Inovio Pharmaceuticals, Inc.
13G/A
Amendment 1
INO · 45773H409
|
3.8% |
5/14/2025
Event 3/31/2025
|
|||
| Stonepine Capital Management, LLC | 3.8% | ||||
| Stonepine Capital, L.P. | 3.8% | ||||
| Stonepine GP, LLC | 3.8% | ||||
| Jon M. Plexico | 3.8% | ||||
|
CalciMedica, Inc.
13G/A
Amendment 1
CALC · 38942Q202
|
4.6% |
5/14/2025
Event 3/31/2025
|
|||
| Stonepine Capital Management, LLC | 4.6% | ||||
| Stonepine Capital, L.P. | 4.6% | ||||
| Stonepine GP, LLC | 4.6% | ||||
| Jon M. Plexico | 4.6% | ||||
|
Aprea Therapeutics, Inc.
13G/A
Amendment 2
APRE · 03836J201
|
4.3% |
5/14/2025
Event 3/31/2025
|
|||
| Stonepine Capital Management, LLC | 4.3% | ||||
| Stonepine Capital, L.P. | 4.3% | ||||
| Stonepine GP, LLC | 4.3% | ||||
| Jon M. Plexico | 4.3% | ||||
|
Edesa Biotech, Inc.
13G
EDSA · 27966L306
|
9.9% |
2/25/2025
Event 2/13/2025
|
|||
| Stonepine Capital Management, LLC | 9.9% | ||||
| Stonepine Capital, L.P. | 9.9% | ||||
| Stonepine GP, LLC | 9.9% | ||||
| Jon M. Plexico | 9.9% | ||||
|
OptiNose, Inc.
13G/A
Amendment 1
OPTN · 68404V209
|
5.9% |
2/13/2025
Event 12/31/2024
|
|||
| Stonepine Capital Management, LLC | 5.9% | ||||
| Stonepine Capital, L.P. | 5.9% | ||||
| Stonepine GP, LLC | 5.9% | ||||
| Jon M. Plexico | 5.9% | ||||
|
Verastem, Inc.
13G/A
Amendment 2
VSTM · 92337C203
|
4.8% |
2/13/2025
Event 12/31/2024
|
|||
| Stonepine Capital Management, LLC | 4.8% | ||||
| Stonepine Capital, L.P. | 4.8% | ||||
| Stonepine GP, LLC | 4.8% | ||||
| Jon M. Plexico | 4.8% | ||||
|
Aprea Therapeutics, Inc.
13G/A
Amendment 1
APRE · 03836J201
|
5.1% |
2/13/2025
Event 12/31/2024
|
|||
| Stonepine Capital Management, LLC | 5.1% | ||||
| Stonepine Capital, L.P. | 5.1% | ||||
| Stonepine GP, LLC | 5.1% | ||||
| Jon M. Plexico | 5.1% | ||||
|
TELA Bio, Inc.
13G/A
Amendment 1
TELA · 872381108
|
6.0% |
2/13/2025
Event 12/31/2024
|
|||
| Stonepine Capital Management, LLC | 6.0% | ||||
| Stonepine Capital, L.P. | 6.0% | ||||
| Stonepine GP, LLC | 6.0% | ||||
| Jon M. Plexico | 6.0% | ||||
|
Inovio Pharmaceuticals, Inc.
13G
INO · 45773H409
|
5.2% |
12/23/2024
Event 12/17/2024
|
|||
| Stonepine Capital Management, LLC | 5.2% | ||||
| Stonepine Capital, L.P. | 5.2% | ||||
| Stonepine GP, LLC | 5.2% | ||||
| Jon M. Plexico | 5.2% | ||||
|
CalciMedica, Inc.
13G
CALC · 38942Q202
|
5.4% |
12/13/2024
Event 12/6/2024
|
|||
| Stonepine Capital Management, LLC | 5.4% | ||||
| Stonepine Capital, L.P. | 5.4% | ||||
| Stonepine GP, LLC | 5.4% | ||||
| Jon M. Plexico | 5.4% | ||||