PSP Research LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 17, 2026), PSP Research LLC reported 79 stock positions worth $141.3 million. Its top holding was iShares 0-3 Month Treasury B (SGOV) at 49.9% of the portfolio, followed by SS SPDR S&P Biotech ETF (XBI, 25.7%) and Sera Prognostics Class A (SERA, 3.4%). Compared with Q4 2025, it opened 20 new positions, sold out of 26, added to 10 and reduced 43. The biggest buy was a new position in SS SPDR S&P Biotech ETF (XBI) and the biggest sale an exit from Travere Therapeutics (TVTX).

Most Recent 13F
Q2 2026
Location
LAS VEGAS, NV
CIK
0002106939
Portfolio Value
$141.3M (Q1 2026)
SEC Filing
0001951757-26-000630 ↗ filed Apr 17, 2026

Holdings Value

0$50.0M$100.0M$150.0M$200.0M Q4 2025: $114.4M Q4 2025 Q1 2026: $141.3M $141.3M Q1 2026 Q2 2026: $187.9M Q2 2026

Holdings 79 stocks · $141.3M

SGOV iShares 0-3 Month Treasury B 49.86% 700,000 $70.5M No change
XBI SS SPDR S&P Biotech ETF 25.75% 284,900 $36.4M New
SERA Sera Prognostics Inc. Class A 3.44% 2,396,685 $4.9M New
DFTX Definium Therapeutics Inc. 0.47% 34,800 $658K Reduce -0.1%
TYRA Tyra Biosciences Inc. 0.43% 16,000 $613K Reduce -26.8%
ASND Ascendis Pharma A/S 0.40% 2,500 $572K Reduce -3.1%
PHVS Pharvaris NV 0.40% 20,000 $565K Reduce -2.5%
CYTK Cytokinetics Inc. 0.39% 8,300 $547K Reduce -0.2%
RPRX Royalty Pharma PLC Class A 0.37% 11,000 $528K Reduce -20.4%
KYMR Kymera Therapeutics Inc. 0.37% 6,300 $525K Reduce -0.8%
HALO Halozyme Therapeutics Inc. 0.37% 8,026 $519K No change
EXEL Exelixis Inc. 0.36% 11,948 $512K No change
IRON Disc Medicine Inc. 0.36% 8,000 $512K New
IONS Ionis Pharmaceuticals Inc. 0.36% 6,800 $511K No change
AGIO Agios Pharmaceuticals Inc. 0.36% 15,000 $507K New
NBIX Neurocrine Biosciences Inc. 0.36% 3,848 $507K Add +3.0%
INCY Incyte Corp. 0.35% 5,300 $499K Reduce -0.9%
TARS Tarsus Pharmaceuticals Inc. 0.35% 7,000 $491K Add +7.4%
VKTX Viking Therapeutics Inc. 0.35% 15,000 $488K Add +1.9%
ALNY Alnylam Pharmaceuticals Inc. 0.34% 1,465 $485K Add +11.2%
PRAX Praxis Precision Medicines I 0.34% 1,500 $483K Reduce -24.3%
AXSM Axsome Therapeutics Inc. 0.34% 2,845 $481K New
NAMS Newamsterdam Pharma Co. NV 0.34% 15,000 $480K Add +0.5%
ARDX Ardelyx Inc. 0.34% 80,000 $479K New
IMVT Immunovant Inc. 0.34% 19,200 $477K Reduce -5.4%
ARGX Argenx SE - ADR 0.33% 641 $468K Add +1.8%
SNDX Syndax Pharmaceuticals Inc. 0.33% 20,000 $467K Reduce -19.1%
INBX Inhibrx Biosciences Inc. 0.33% 6,927 $466K Add +8.4%
ARQT Arcutis Biotherapeutics Inc. 0.33% 19,700 $464K Add +5.3%
RARE Ultragenyx Pharmaceutical Inc. 0.33% 22,100 $463K New
MIRM Mirum Pharmaceuticals Inc. 0.33% 5,000 $462K Reduce -27.1%
COGT Cogent Biosciences Inc. 0.33% 12,000 $462K Reduce -9.3%
GLUE Monte Rosa Therapeutics Inc. 0.33% 28,000 $461K New
IMCR Immunocore Holdings PLC-ADR 0.32% 15,141 $457K Add +5.0%
CRSP Crispr Therapeutics AG 0.32% 9,500 $452K Reduce -0.8%
BBIO Bridgebio Pharma Inc. 0.32% 6,000 $446K Reduce -16.0%
NRIX Nurix Therapeutics Inc. 0.31% 28,700 $445K Reduce -0.1%
AUPH Aurinia Pharmaceuticals Inc. 0.31% 30,000 $445K Reduce -11.6%
ACAD Acadia Pharmaceuticals Inc. 0.31% 19,766 $440K No change
RAPP Rapport Therapeutics Inc. 0.31% 14,000 $438K Reduce -20.0%
IMNM Immunome Inc. 0.31% 20,000 $437K Reduce -20.8%
KNSA Kiniksa Pharmaceuticals Inte 0.31% 9,000 $433K Reduce -28.9%
TGTX TG Therapeutics Inc. 0.31% 13,000 $432K Reduce -27.0%
DNTH Dianthus Therapeutics Inc. 0.30% 5,000 $420K Reduce -60.7%
CLDX Celldex Therapeutics Inc. 0.29% 13,000 $412K Reduce -36.2%
PTCT PTC Therapeutics Inc. 0.29% 6,000 $409K Reduce -14.8%
VERA Vera Therapeutics Inc. 0.28% 10,000 $402K Add +0.0%
HRMY Harmony Biosciences Holdings 0.28% 14,283 $400K No change
CRNX Crinetics Pharmaceuticals Inc. 0.28% 11,000 $400K Reduce -2.8%
CMPS Compass Pathways PLC 0.28% 71,000 $393K New
STOK Stoke Therapeutics Inc. 0.28% 12,000 $391K Reduce -27.8%
KOD Kodiak Sciences Inc. 0.27% 10,000 $381K Reduce -48.5%
DYN Dyne Therapeutics Inc. 0.26% 20,000 $363K Reduce -7.1%
TRVI Trevi Therapeutics Inc. 0.25% 30,000 $358K New
NTLA Intellia Therapeutics Inc. 0.24% 26,900 $345K New
PTGX Protagonist Therapeutics Inc. 0.22% 3,000 $316K Reduce -51.0%
MDGL Madrigal Pharmaceuticals Inc. 0.22% 600 $314K Reduce -32.7%
SUPN Supernus Pharmaceuticals Inc. 0.22% 6,000 $310K Reduce -44.2%
TNGX Tango Therapeutics Inc. 0.21% 14,400 $301K New
ERAS Erasca Inc. 0.20% 17,327 $280K New
ELVN Enliven Therapeutics Inc. 0.19% 7,000 $274K New
SYRE Spyre Therapeutics Inc. 0.18% 5,159 $260K Reduce -67.4%
ZYME Zymeworks Inc. 0.18% 10,000 $250K Reduce -50.8%
XENE Xenon Pharmaceuticals Inc. 0.17% 4,200 $244K Reduce -64.0%
ORKA Oruka Therapeutics Inc. 0.17% 4,968 $244K New
CELC Celcuity Inc. 0.16% 2,000 $228K Reduce -61.9%
KALV Kalvista Pharmaceuticals Inc. 0.15% 10,795 $217K New
LEGN Legend Biotech Corp.-ADR 0.15% 12,000 $217K Reduce -50.8%
ALKS Alkermes PLC 0.15% 6,000 $212K Reduce -68.9%
APGE Apogee Therapeutics Inc. 0.15% 2,500 $210K Reduce -64.2%
UTHR United Therapeutics Corp. 0.15% 350 $208K Reduce -67.6%
EWTX Edgewise Therapeutics Inc. 0.14% 6,500 $205K New
SMMT Summit Therapeutics Inc. 0.14% 10,223 $194K New
ORIC Oric Pharmaceuticals Inc. 0.12% 13,000 $165K New
CMPX Compass Therapeutics Inc. 0.11% 30,000 $159K New
AMLX Amylyx Pharmaceuticals Inc. 0.11% 10,838 $151K Reduce -75.5%
OLMA Olema Pharmaceuticals Inc. 0.11% 10,000 $149K Reduce -47.5%
EYPT Eyepoint Inc. 0.09% 10,000 $129K Reduce -66.1%
OCUL Ocular Therapeutix Inc. 0.09% 15,000 $127K Reduce -65.0%

Portfolio Sells Q4 2025 → Q1 2026

TVTX Travere Therapeutics Inc. Sold out 0.00% −0.51
JAZZ Jazz Pharmaceuticals PLC Sold out 0.00% −0.48
CGON CG Oncology Inc. Sold out 0.00% −0.48
BLTE Belite Bio Inc. - ADR Sold out 0.00% −0.48
APLS Apellis Pharmaceuticals Inc. Sold out 0.00% −0.48
TERN Terns Pharmaceuticals Inc. Sold out 0.00% −0.48
RVMD Revolution Medicines Inc. Sold out 0.00% −0.48
CNTA Centessa Pharmaceuticals Ltd. Sold out 0.00% −0.48
MLYS Mineralys Therapeutics Inc. Sold out 0.00% −0.47
ACLX Arcellx Inc. Sold out 0.00% −0.47
ROIV Roivant Sciences Ltd. Sold out 0.00% −0.47
LQDA Liquidia Corp. Sold out 0.00% −0.47
PVLA Palvella Therapeutics Inc. Sold out 0.00% −0.47
INSM Insmed Inc. Sold out 0.00% −0.46
NUVL Nuvalent Inc. Class A Sold out 0.00% −0.46
VRDN Viridian Therapeutics Inc. Sold out 0.00% −0.46
WVE Wave Life Sciences Ltd. Sold out 0.00% −0.46
MAZE Maze Therapeutics Inc. Sold out 0.00% −0.46
DNLI Denali Therapeutics Inc. Sold out 0.00% −0.46
BMRN Biomarin Pharmaceutical Inc. Sold out 0.00% −0.46
BEAM Beam Therapeutics Inc. Sold out 0.00% −0.44
RYTM Rhythm Pharmaceuticals Inc. Sold out 0.00% −0.44
UPB Upstream Bio Inc. Sold out 0.00% −0.42
GPCR Structure Therapeutics Inc. Sold out 0.00% −0.41
ARWR Arrowhead Pharmaceuticals Inc. Sold out 0.00% −0.39
EYPT Eyepoint Inc. Reduce -66.1% 0.09% −0.38
ALMS Alumis Inc. Sold out 0.00% −0.37
OCUL Ocular Therapeutix Inc. Reduce -65.0% 0.09% −0.36
AMLX Amylyx Pharmaceuticals Inc. Reduce -75.5% 0.11% −0.36
ALKS Alkermes PLC Reduce -68.9% 0.15% −0.32
UTHR United Therapeutics Corp. Reduce -67.6% 0.15% −0.31
APGE Apogee Therapeutics Inc. Reduce -64.2% 0.15% −0.31
OLMA Olema Pharmaceuticals Inc. Reduce -47.5% 0.11% −0.31
LEGN Legend Biotech Corp.-ADR Reduce -50.8% 0.15% −0.31
CELC Celcuity Inc. Reduce -61.9% 0.16% −0.30
ZYME Zymeworks Inc. Reduce -50.8% 0.18% −0.29
XENE Xenon Pharmaceuticals Inc. Reduce -64.0% 0.17% −0.28
SYRE Spyre Therapeutics Inc. Reduce -67.4% 0.18% −0.27
SUPN Supernus Pharmaceuticals Inc. Reduce -44.2% 0.22% −0.25
PTGX Protagonist Therapeutics Inc. Reduce -51.0% 0.22% −0.24
MDGL Madrigal Pharmaceuticals Inc. Reduce -32.7% 0.22% −0.23
KOD Kodiak Sciences Inc. Reduce -48.5% 0.27% −0.20
CLDX Celldex Therapeutics Inc. Reduce -36.2% 0.29% −0.19
STOK Stoke Therapeutics Inc. Reduce -27.8% 0.28% −0.18
PTCT PTC Therapeutics Inc. Reduce -14.8% 0.29% −0.18
CRNX Crinetics Pharmaceuticals Inc. Reduce -2.8% 0.28% −0.18
PRAX Praxis Precision Medicines I Reduce -24.3% 0.34% −0.17
IMNM Immunome Inc. Reduce -20.8% 0.31% −0.16
BBIO Bridgebio Pharma Inc. Reduce -16.0% 0.32% −0.16
DNTH Dianthus Therapeutics Inc. Reduce -60.7% 0.30% −0.16

Portfolio Buys Q4 2025 → Q1 2026

XBI SS SPDR S&P Biotech ETF New 25.75% +25.75
SERA Sera Prognostics Inc. Class A New 3.44% +3.44
IRON Disc Medicine Inc. New 0.36% +0.36
AGIO Agios Pharmaceuticals Inc. New 0.36% +0.36
AXSM Axsome Therapeutics Inc. New 0.34% +0.34
ARDX Ardelyx Inc. New 0.34% +0.34
RARE Ultragenyx Pharmaceutical Inc. New 0.33% +0.33
GLUE Monte Rosa Therapeutics Inc. New 0.33% +0.33
CMPS Compass Pathways PLC New 0.28% +0.28
TRVI Trevi Therapeutics Inc. New 0.25% +0.25
NTLA Intellia Therapeutics Inc. New 0.24% +0.24
TNGX Tango Therapeutics Inc. New 0.21% +0.21
ERAS Erasca Inc. New 0.20% +0.20
ELVN Enliven Therapeutics Inc. New 0.19% +0.19
ORKA Oruka Therapeutics Inc. New 0.17% +0.17
KALV Kalvista Pharmaceuticals Inc. New 0.15% +0.15
EWTX Edgewise Therapeutics Inc. New 0.14% +0.14
SMMT Summit Therapeutics Inc. New 0.14% +0.14
ORIC Oric Pharmaceuticals Inc. New 0.12% +0.12
CMPX Compass Therapeutics Inc. New 0.11% +0.11
NBIX Neurocrine Biosciences Inc. Add +3.0% 0.36% −0.10
VKTX Viking Therapeutics Inc. Add +1.9% 0.35% −0.11
INBX Inhibrx Biosciences Inc. Add +8.4% 0.33% −0.11
IMCR Immunocore Holdings PLC-ADR Add +5.0% 0.32% −0.11
ALNY Alnylam Pharmaceuticals Inc. Add +11.2% 0.34% −0.12
NAMS Newamsterdam Pharma Co. NV Add +0.5% 0.34% −0.12
TARS Tarsus Pharmaceuticals Inc. Add +7.4% 0.35% −0.12
ARGX Argenx SE - ADR Add +1.8% 0.33% −0.13
ARQT Arcutis Biotherapeutics Inc. Add +5.3% 0.33% −0.15
VERA Vera Therapeutics Inc. Add +0.0% 0.28% −0.16

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 75$187.9MXBI, SGOV, RPRX, NRIX, INCY
Q1 2026 79$141.3MSGOV, XBI, SERA, DFTX, TYRA
Q4 2025 85$114.4MSGOV, PRAX, TVTX, TYRA, PHVS