Saturn V Capital Management LLC

Hedge Fund • Sector

Saturn V Capital Management LLC is a Sector-focused Hedge Fund based in Austin, TX led by Xiaoying (Nmn) Tian, managing $456.0M across 17 long positions as of Q3 2025 with 81% Healthcare concentration and 77% concentrated in top 10 holdings.

PartnerXiaoying (Nmn) Tian

Portfolio Value: $456.0M
Positions: 17
Top Holding: ABVX at 14.92%
Last Reported: Q3 2025

Address919 Congress Avenue, Suite 830, Austin, TX, 78701, United States

Top Holdings

Largest long holdings in Saturn V Capital Management LLC's portfolio (77.4% of total portfolio)

See all holdings

GthenH

Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 ABVX Abivax ABVX	Unknown Unknown	$68.0M	14.92%	+$15.2M Bought	— 801.2K shares	Q1 2024 Held for 1y 8m
2 Amylyx Pharmaceuticals, Inc. AMLX	Biotechnology Healthcare	$62.6M	13.72%	+$18.3M Bought	4.32% 4.6M shares	Q4 2024 Held for 11 months
3 Jazz Pharmaceuticals JAZZ	Biotechnology Healthcare	$39.6M	8.69%	+$12.3M Bought	0.50% 300.6K shares	Q2 2025 Held for 5 months
4 Dyne Therapeutics, Inc. DYN	Biotechnology Healthcare	$33.8M	7.42%	+$15.4M Bought	1.88% 2.7M shares	Q2 2025 Held for 5 months
5 Cogent Biosciences, Inc. COGT	Biotechnology Healthcare	$29.1M	6.38%	-$3.9M Sold	1.45% 2.0M shares	Q2 2023 Held for 2y 5m
6 Vaxcyte, Inc. PCVX	Biotechnology Healthcare	$28.4M	6.23%	+$8.8M Bought	0.61% 788.4K shares	Q1 2024 Held for 1y 8m
7 Celcuity CELC	Biotechnology Healthcare	$23.4M	5.13%	-$35.2M Sold	1.12% 473.8K shares	Q2 2024 Held for 1y 5m
8 CG Oncology CGON	Biotechnology Healthcare	$23.4M	5.12%	-$272.0K Sold	0.76% 579.9K shares	Q3 2024 Held for 1y 2m
9 Disc Medicine IRON	Biotechnology Healthcare	$22.5M	4.94%	-$3.6M Sold	0.98% 340.9K shares	Q4 2023 Held for 1y 11m
10 Pharvaris PHVS	Biotechnology Healthcare	$22.1M	4.85%	+$22.1M New	1.38% 886.3K shares	Q3 2025 Held for 2 months

See all holdings

GthenH

Changes

Portfolio activity, position movements, and quarter-over-quarter changes in Saturn V Capital Management LLC's latest filing

See all changes

GthenC

Market Value

$456.0M

Prior: $246.8M

Q/Q Change

+84.78%

+$209.2M

Net Flows % of MV

+4.58%

Turnover Ratio

22.35%

New Purchases

2 stocks

$34.8M

Added To

8 stocks

+$77.6M

Sold Out Of

9 stocks

$41.4M

Reduced Holdings

7 stocks

-$50.1M

Increased Positions

Position	Shares Δ	Change
1 Pharvaris PHVS	New	0 → 886.3K +$22.1M
2 Monopar Therapeutics MNPR	New	0 → 155.4K +$12.7M
3 Dyne Therapeutics, Inc. DYN	+83.76%	1.5M → 2.7M +$15.4M
4 Ocular Therapeutix OCUL	+58.07%	728.6K → 1.2M +$4.9M
5 Jazz Pharmaceuticals JAZZ	+45.26%	207.0K → 300.6K +$12.3M

Decreased Positions

Position	Shares Δ	Change
1 MoonLake Immunotherapeutics MLTX	Sold	290.8K → 0 −$13.7M
2 Neurocrine Biosciences NBIX	Sold	58.2K → 0 −$7.3M
3 ASND Ascendis Pharma ASND	Sold	38.2K → 0 −$6.6M
4 ARGX argenx ARGX	Sold	10.3K → 0 −$5.7M
5 Syndax Pharmaceuticals SNDX	Sold	500.6K → 0 −$4.7M