Saturn V Capital Management LP

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Saturn V Capital Management LP reported 21 stock positions worth $198.2 million. Its top holding was Ascendis Pharma A/S (ASND) at 15.7% of the portfolio, followed by Disc Medicine (IRON, 13.0%) and CG Oncology (CGON, 7.1%). Compared with Q4 2024, it opened 1 new position, sold out of 4, added to 11 and reduced 9. The biggest buy was Ascendis Pharma A/S (ASND, shares +0%) and the biggest sale an exit from Cytokinetics (CYTK).

Most Recent 13F
Q2 2026
Location
AUSTIN, TX
CIK
0001964437
Portfolio Value
$198.2M (Q1 2025)
SEC Filing
0001964437-25-000005 ↗ filed May 15, 2025

Holdings Value

0$200.0M$400.0M$600.0M$800.0M Q1 2024: $249.4M Q1 2024 Q2 2024: $264.6M Q2 2024 Q3 2024: $279.8M Q3 2024 Q4 2024: $255.4M Q4 2024 Q1 2025: $198.2M $198.2M Q1 2025 Q2 2025: $246.8M Q2 2025 Q3 2025: $456.0M Q3 2025 Q4 2025: $544.9M Q4 2025 Q1 2026: $552.2M Q1 2026 Q2 2026: $697.5M Q2 2026

Holdings 21 stocks · $198.2M

ASND Ascendis Pharma A/S 15.67% 199,264 $31.1M Add +0.1%
IRON Disc Medicine Inc. 12.98% 518,177 $25.7M Add +1.7%
CGON CG Oncology Inc. 7.14% 577,696 $14.1M Reduce -2.6%
XENE Xenon Pharmaceuticals Inc. 7.00% 413,711 $13.9M Add +28.3%
MRUS Merus NV 6.87% 323,211 $13.6M Add +37.8%
MLTX Moonlake Immunotherapeutics 6.78% 343,849 $13.4M Reduce -0.7%
SNDX Syndax Pharmaceuticals Inc. 6.46% 1,041,280 $12.8M Add +5.3%
CELC Celcuity Inc. 5.58% 1,093,677 $11.1M Add +2.8%
COGT Cogent Biosciences Inc. 4.47% 1,480,020 $8.9M Reduce -1.2%
PCVX Vaxcyte Inc. 4.43% 232,295 $8.8M Add +13.7%
AMLX Amylyx Pharmaceuticals Inc. 4.33% 2,426,436 $8.6M Add +172.9%
ARGX Argenx SE - ADR 4.14% 13,862 $8.2M Reduce -29.8%
CNTA Centessa Pharmaceuticals Ltd. 3.26% 448,692 $6.5M New
OCUL Ocular Therapeutix Inc. 2.21% 598,191 $4.4M Add +212.4%
CTNM Contineum Therapeutics Inc. Class A 1.98% 560,979 $3.9M Reduce -2.1%
ABVX Abivax SA-ADR 1.74% 552,926 $3.5M Reduce -15.3%
KALV Kalvista Pharmaceuticals Inc. 1.49% 255,060 $2.9M Reduce -54.2%
NAMS Newamsterdam Pharma Co. NV 1.20% 116,353 $2.4M Add +16.4%
SLN Silence Therapeutics PLC-ADR 1.04% 732,463 $2.1M Add +85.4%
CRNX Crinetics Pharmaceuticals Inc. 1.00% 59,017 $2.0M Reduce -0.2%
INZY Inozyme Pharma Inc. 0.23% 499,254 $454K Reduce -63.7%

Portfolio Sells Q4 2024 → Q1 2025

CYTK Cytokinetics Inc. Sold out 0.00% −6.42
CRGX Cargo Therapeutics Inc. Sold out 0.00% −5.69
IRWD Ironwood Pharmaceuticals Inc. Sold out 0.00% −1.41
CTNM Contineum Therapeutics Inc. Class A Reduce -2.1% 1.98% −1.31
INZY Inozyme Pharma Inc. Reduce -63.7% 0.23% −1.26
ARGX Argenx SE - ADR Reduce -29.8% 4.14% −0.62
MLTX Moonlake Immunotherapeutics Reduce -0.7% 6.78% −0.56
KALV Kalvista Pharmaceuticals Inc. Reduce -54.2% 1.49% −0.36
CRNX Crinetics Pharmaceuticals Inc. Reduce -0.2% 1.00% −0.18
MBX MBX Biosciences Inc. Sold out 0.00% −0.13
ABVX Abivax SA-ADR Reduce -15.3% 1.74% −0.13
COGT Cogent Biosciences Inc. Reduce -1.2% 4.47% −0.10
CGON CG Oncology Inc. Reduce -2.6% 7.14% +0.48

Portfolio Buys Q4 2024 → Q1 2025

ASND Ascendis Pharma A/S Add +0.1% 15.67% +4.95
CNTA Centessa Pharmaceuticals Ltd. New 3.26% +3.26
AMLX Amylyx Pharmaceuticals Inc. Add +172.9% 4.33% +3.02
MRUS Merus NV Add +37.8% 6.87% +3.00
XENE Xenon Pharmaceuticals Inc. Add +28.3% 7.00% +2.05
OCUL Ocular Therapeutix Inc. Add +212.4% 2.21% +1.57
SNDX Syndax Pharmaceuticals Inc. Add +5.3% 6.46% +1.34
IRON Disc Medicine Inc. Add +1.7% 12.98% +0.33
NAMS Newamsterdam Pharma Co. NV Add +16.4% 1.20% +0.20
CELC Celcuity Inc. Add +2.8% 5.58% +0.13
SLN Silence Therapeutics PLC-ADR Add +85.4% 1.04% −0.02
PCVX Vaxcyte Inc. Add +13.7% 4.43% −2.12

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 23$697.5MAMLX, ALMS, ABVX, PCVX, IMMX
Q1 2026 21$552.2MALMS, AMLX, ABVX, PCVX, PHVS
Q4 2025 20$544.9MABVX, AMLX, COGT, JAZZ, PCVX
Q3 2025 17$456.0MABVX, AMLX, JAZZ, DYN, COGT
Q2 2025 24$246.8MJAZZ, IRON, AMLX, PCVX, COGT
Q1 2025 21$198.2MASND, IRON, CGON, XENE, MRUS
Q4 2024 24$255.4MIRON, ASND, MLTX, CGON, PCVX
Q3 2024 25$279.8MASND, IRON, PCVX, CGON, COGT
Q2 2024 26$264.6MARGX, IRON, CRNX, PCVX, ASND
Q1 2024 21$249.4MCRNX, ARGX, CYTK, KALV, MRUS