Stonepine Capital Management, LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), Stonepine Capital Management, LLC reported 66 stock positions worth $113.7 million. Its top holding was Verastem (VSTM) at 15.4% of the portfolio, followed by Tenax Therapeutics (TENX, 13.7%) and Evolus (EOLS, 6.4%). Compared with Q4 2025, it opened 19 new positions, sold out of 14, added to 19 and reduced 24. The biggest buy was Tenax Therapeutics (TENX, shares +8106%) and the biggest sale an exit from Indivior (INDV).

Most Recent 13F
Q2 2026
Location
Bend, OR
CIK
0001440771
Portfolio Value
$113.7M (Q1 2026)
SEC Filing
0001440771-26-000002 ↗ filed May 14, 2026

Holdings Value

0$50.0M$100.0M$150.0M$200.0M Q1 2024: $126.1M Q1 2024 Q2 2024: $109.6M Q2 2024 Q3 2024: $158.2M Q3 2024 Q4 2024: $123.9M Q4 2024 Q1 2025: $102.8M Q1 2025 Q2 2025: $101.5M Q2 2025 Q3 2025: $123.0M Q3 2025 Q4 2025: $126.4M Q4 2025 Q1 2026: $113.7M $113.7M Q1 2026 Q2 2026: $131.4M Q2 2026

Holdings 66 stocks · $113.7M

VSTM Verastem Inc. 15.39% 3,302,300 $17.5M Add +20.9%
TENX Tenax Therapeutics Inc. 13.72% 975,200 $15.6M Add +8106.0%
EOLS Evolus Inc. 6.36% 1,759,091 $7.2M Add +7.8%
ADMA Adma Biologics Inc. 5.86% 740,000 $6.7M No change
CAMP CAMP4 Therapeutics Corp. 5.39% 1,389,622 $6.1M Add +507.1%
NKTR Nektar Therapeutics 5.38% 85,000 $6.1M No change
ZVRA Zevra Therapeutics Inc. 3.93% 480,000 $4.5M Reduce -15.7%
CRBP Corbus Pharmaceuticals Holdi 3.17% 383,462 $3.6M Reduce -1.7%
ABEO Abeona Therapeutics Inc. 2.94% 746,587 $3.3M Add +5.2%
KZIA Kazia Therapeutics-Spon ADR 2.26% 345,179 $2.6M Reduce -25.0%
ANTX AN2 Therapeutics Inc. 2.15% 713,845 $2.4M Add +13.7%
SLGL Sol-Gel Technologies Ltd. 1.94% 27,778 $2.2M New
XOMA Xoma Royalty Corporation 1.92% 69,500 $2.2M Reduce -39.6%
AYTU Aytu Biopharma Inc. 1.90% 792,289 $2.2M Reduce -2.6%
CRIS Curis Inc. 1.79% 3,726,406 $2.0M Add +6178.8%
TELA Tela Bio Inc. 1.43% 2,617,252 $1.6M Add +11.3%
IKT Inhibikase Therapeutics Inc. 1.41% 957,202 $1.6M Reduce -59.2%
CBIO Crescent Biopharma Inc. 1.37% 85,000 $1.6M Reduce -3.1%
ACET Adicet Bio Inc. 1.33% 221,955 $1.5M Add +0.9%
XFOR X4 Pharmaceuticals Inc. 1.22% 335,309 $1.4M Reduce -43.5%
OKYO Okyo Pharma Ltd. 1.20% 850,000 $1.4M New
HRTX Heron Therapeutics Inc. 0.99% 1,402,191 $1.1M Add +13.3%
LUNG Pulmonx Corp. 0.87% 768,288 $991K Add +58.0%
INAB IN8BIO Inc. 0.86% 663,412 $982K Add +302.3%
SRZN Surrozen Inc. 0.85% 33,005 $961K Reduce -71.0%
CTMX Cytomx Therapeutics Inc. 0.83% 200,000 $940K New
PMVP PMV Pharmaceuticals Inc. 0.77% 708,102 $878K Reduce -38.5%
BIOA Bioage Labs Inc. 0.77% 50,000 $875K Add +11.1%
CNTB Connect Biopharma Holdings L 0.71% 310,000 $812K New
RADX Radiopharm Theranostics Ltd. 0.65% 51,000,000 $739K No change
MXCT Maxcyte Inc. 0.62% 1,004,673 $706K Add +114.2%
CDXS Codexis Inc. 0.60% 417,994 $681K Add +63.2%
BOLD Boundless Bio Inc. 0.58% 597,682 $657K Reduce -15.8%
HELP Cybin Inc. 0.57% 134,060 $643K Reduce -60.6%
ZNTL Zentalis Pharmaceuticals Inc. 0.55% 269,100 $630K Reduce -42.0%
KTTA Pasithea Therapeutics Corp. 0.54% 831,301 $617K Add +202.2%
MSLE Satellos Bioscience Inc. 0.50% 100,000 $563K New
PHAT Phathom Pharmaceuticals Inc. 0.49% 50,010 $556K New
OKUR Onkure Therapeutics Inc. Class A 0.48% 132,578 $549K New
XLO Xilio Therapeutics Inc. 0.47% 64,162 $540K Add +611.4%
VRCA Verrica Pharmaceuticals Inc. 0.46% 99,735 $528K Reduce -71.8%
CADL Candel Therapeutics Inc. 0.44% 102,500 $502K New
POCI Precision Optics Corp. Inc. 0.39% 100,000 $439K New
QNRX Quoin Pharmaceuticals LT-ADR 0.31% 53,460 $353K Reduce -31.6%
ESTA Establishment Labs Holdings 0.30% 6,000 $341K New
UPB Upstream Bio Inc. 0.28% 35,000 $315K New
IRD Opus Genetics Inc. 0.27% 68,688 $313K New
ARVN Arvinas Inc. 0.26% 27,500 $292K New
PLRX Pliant Therapeutics Inc. 0.25% 224,650 $283K Reduce -2.4%
JANX Janux Therapeutics Inc. 0.24% 20,000 $278K No change
OABI Omniab Inc. 0.23% 164,045 $258K Reduce -76.6%
XERS Xeris Biopharma Holdings Inc. 0.20% 40,030 $232K New
CGEN Compugen Ltd. 0.20% 104,300 $222K Reduce -65.8%
NMRA Neumora Therapeutics Inc. 0.17% 100,000 $195K New
SABS Sab Biotherapeutics Inc. 0.17% 50,000 $192K New
SIBN Si-Bone Inc. 0.17% 14,964 $189K New
EDSA Edesa Biotech Inc. 0.14% 30,000 $157K Reduce -95.6%
CNSP CNS Pharmaceuticals Inc. 0.13% 61,000 $146K Add +24.9%
PCSA Processa Pharmaceuticals Inc. 0.12% 55,000 $139K Add +346.3%
CABA Cabaletta Bio Inc. 0.12% 50,000 $135K Reduce -70.8%
KLRS Kalaris Therapeutics Inc. 0.10% 20,400 $118K New
ELDN Eledon Pharmaceuticals Inc. 0.09% 35,000 $108K Reduce -96.1%
OVID Ovid Therapeutics Inc. 0.08% 40,000 $89K Reduce -60.9%
EVAX Evaxion A/S 0.06% 19,713 $73K Reduce -1.4%
MNKD Mannkind Corp. 0.04% 16,300 $40K Reduce -81.1%
BCAB Bioatla Inc. 0.01% 65,387 $11K New

Options reported separately and not counted above: XBI puts ($51.1M), XBI calls ($51.1M), ADMA calls ($10.4M), TERN calls ($5.3M), ESTA calls ($2.8M), ARE calls ($2.3M), ACAD calls ($2.2M), EOLS calls ($1.7M), XERS calls ($1.6M), SIBN calls ($1.3M), MNKD calls ($1.2M), NMRA calls ($975K), and 5 more.

Portfolio Sells Q4 2025 → Q1 2026

INDV Indivior Ltd. Sold out 0.00% −2.84
IKT Inhibikase Therapeutics Inc. Reduce -59.2% 1.41% −2.39
ACAD Acadia Pharmaceuticals Inc. Sold out 0.00% −2.11
VRCA Verrica Pharmaceuticals Inc. Reduce -71.8% 0.46% −1.86
HELP Cybin Inc. Reduce -60.6% 0.57% −1.63
DAWN Day One Biopharmaceuticals I Sold out 0.00% −1.47
SPRB Spruce Biosciences Inc. Sold out 0.00% −1.36
ENTA Enanta Pharmaceuticals Inc. Sold out 0.00% −1.25
SRZN Surrozen Inc. Reduce -71.0% 0.85% −1.19
MIST Milestone Pharmaceuticals Inc. Sold out 0.00% −1.06
ELDN Eledon Pharmaceuticals Inc. Reduce -96.1% 0.09% −0.97
GERN Geron Corp. Sold out 0.00% −0.84
OABI Omniab Inc. Reduce -76.6% 0.23% −0.80
KZR Kezar Life Sciences Inc. Sold out 0.00% −0.78
XFOR X4 Pharmaceuticals Inc. Reduce -43.5% 1.22% −0.66
EDSA Edesa Biotech Inc. Reduce -95.6% 0.14% −0.63
SMLR Semler Scientific Inc. Sold out 0.00% −0.60
QNRX Quoin Pharmaceuticals LT-ADR Reduce -31.6% 0.31% −0.58
GOSS Gossamer Bio Inc. Sold out 0.00% −0.50
XOMA Xoma Royalty Corporation Reduce -39.6% 1.92% −0.50
PMVP PMV Pharmaceuticals Inc. Reduce -38.5% 0.77% −0.37
MNKD Mannkind Corp. Reduce -81.1% 0.04% −0.35
FENC Fennec Pharmaceuticals Inc. Sold out 0.00% −0.30
KZIA Kazia Therapeutics-Spon ADR Reduce -25.0% 2.26% −0.25
DCTH Delcath Systems Inc. Sold out 0.00% −0.22
KPRX Kiora Pharmaceuticals Inc. Sold out 0.00% −0.20
TNYA Tenaya Therapeutics Inc. Sold out 0.00% −0.20
CABA Cabaletta Bio Inc. Reduce -70.8% 0.12% −0.18
CGEN Compugen Ltd. Reduce -65.8% 0.20% −0.17
ZVRA Zevra Therapeutics Inc. Reduce -15.7% 3.93% −0.10
BOLD Boundless Bio Inc. Reduce -15.8% 0.58% −0.10
OVID Ovid Therapeutics Inc. Reduce -60.9% 0.08% −0.05
EVAX Evaxion A/S Reduce -1.4% 0.06% −0.01
PLRX Pliant Therapeutics Inc. Reduce -2.4% 0.25% +0.03
ZNTL Zentalis Pharmaceuticals Inc. Reduce -42.0% 0.55% +0.06
AYTU Aytu Biopharma Inc. Reduce -2.6% 1.90% +0.23
CBIO Crescent Biopharma Inc. Reduce -3.1% 1.37% +0.55
CRBP Corbus Pharmaceuticals Holdi Reduce -1.7% 3.17% +0.66

Portfolio Buys Q4 2025 → Q1 2026

TENX Tenax Therapeutics Inc. Add +8106.0% 13.72% +13.60
CAMP CAMP4 Therapeutics Corp. Add +507.1% 5.39% +4.28
SLGL Sol-Gel Technologies Ltd. New 1.94% +1.94
CRIS Curis Inc. Add +6178.8% 1.79% +1.75
ANTX AN2 Therapeutics Inc. Add +13.7% 2.15% +1.58
OKYO Okyo Pharma Ltd. New 1.20% +1.20
CTMX Cytomx Therapeutics Inc. New 0.83% +0.83
CNTB Connect Biopharma Holdings L New 0.71% +0.71
INAB IN8BIO Inc. Add +302.3% 0.86% +0.56
MSLE Satellos Bioscience Inc. New 0.50% +0.50
PHAT Phathom Pharmaceuticals Inc. New 0.49% +0.49
OKUR Onkure Therapeutics Inc. Class A New 0.48% +0.48
CADL Candel Therapeutics Inc. New 0.44% +0.44
XLO Xilio Therapeutics Inc. Add +611.4% 0.47% +0.41
POCI Precision Optics Corp. Inc. New 0.39% +0.39
ESTA Establishment Labs Holdings New 0.30% +0.30
BIOA Bioage Labs Inc. Add +11.1% 0.77% +0.30
UPB Upstream Bio Inc. New 0.28% +0.28
IRD Opus Genetics Inc. New 0.27% +0.27
CDXS Codexis Inc. Add +63.2% 0.60% +0.27
KTTA Pasithea Therapeutics Corp. Add +202.2% 0.54% +0.26
ARVN Arvinas Inc. New 0.26% +0.26
XERS Xeris Biopharma Holdings Inc. New 0.20% +0.20
NMRA Neumora Therapeutics Inc. New 0.17% +0.17
SABS Sab Biotherapeutics Inc. New 0.17% +0.17
SIBN Si-Bone Inc. New 0.17% +0.17
KLRS Kalaris Therapeutics Inc. New 0.10% +0.10
PCSA Processa Pharmaceuticals Inc. Add +346.3% 0.12% +0.09
MXCT Maxcyte Inc. Add +114.2% 0.62% +0.05
LUNG Pulmonx Corp. Add +58.0% 0.87% +0.02
BCAB Bioatla Inc. New 0.01% +0.01
ABEO Abeona Therapeutics Inc. Add +5.2% 2.94% −0.02
CNSP CNS Pharmaceuticals Inc. Add +24.9% 0.13% −0.07
ACET Adicet Bio Inc. Add +0.9% 1.33% −0.14
HRTX Heron Therapeutics Inc. Add +13.3% 0.99% −0.29
TELA Tela Bio Inc. Add +11.3% 1.43% −0.77
VSTM Verastem Inc. Add +20.9% 15.39% −1.29
EOLS Evolus Inc. Add +7.8% 6.36% −2.22

Options Activity Q4 2025 → Q1 2026

XBI SS SPDR S&P Biotech ETF put New 400,000 $51.1M
XBI SS SPDR S&P Biotech ETF call New 400,000 $51.1M
ADMA Adma Biologics Inc. call New 1,150,000 $10.4M
TERN Terns Pharmaceuticals Inc. call New 100,000 $5.3M
ESTA Establishment Labs Holdings call New 50,000 $2.8M
CRSP Crispr Therapeutics AG call Sold out 50,000 $2.6Mbefore exit
RARE Ultragenyx Pharmaceutical Inc. call Sold out 100,000 $2.3Mbefore exit
ACAD Acadia Pharmaceuticals Inc. call New 100,000 $2.2M
NKTR Nektar Therapeutics call Sold out 50,000 $2.1Mbefore exit
EOLS Evolus Inc. call New 420,000 $1.7M
XERS Xeris Biopharma Holdings Inc. call New 280,000 $1.6M
SIBN Si-Bone Inc. call New 100,000 $1.3M
MNKD Mannkind Corp. call New 500,000 $1.2M
NMRA Neumora Therapeutics Inc. call New 500,000 $975K
CTMX Cytomx Therapeutics Inc. call New 200,000 $940K
DCTH Delcath Systems Inc. call New 100,000 $928K
ARDX Ardelyx Inc. call New 150,000 $899K
HRTX Heron Therapeutics Inc. call New 1,000,000 $800K
ABEO Abeona Therapeutics Inc. call Reduce -50.0% 100,000 $448K

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026Amended 72$131.4MVSTM, EOLS, TENX, NKTR, ADMA
Q1 2026 66$113.7MVSTM, TENX, EOLS, ADMA, CAMP
Q4 2025 61$126.4MVSTM, ADMA, EOLS, ZVRA, IKT
Q3 2025 58$123.0MVSTM, ADMA, EOLS, ZVRA, NKTR
Q2 2025 58$101.5MADMA, EOLS, ZVRA, VSTM, INDV
Q1 2025 66$102.8MANIP, EOLS, OPTINOSE INC, ZVRA, VSTM
Q4 2024 52$123.9MADMA, EOLS, TELA, LKFT, ZVRA
Q3 2024 38$158.2MADMA, EOLS, LKFT, JAZZ, RPRX
Q2 2024Amended 25$109.6MADMA, ALIM, EOLS, LKFT, RVNC
Q1 2024 20$126.1MEOLS, ADMA, ALIM, LKFT, RVNC