Catalys Pacific, LLC

Concentrated strategyMomentum followerQuality / disciplined sizing

Total reported value

$230.7M

Reporting period: 2026-03-31 · Number of holdings: 2

Catalys Pacific, LLC disclosed 2 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $230.7M and a quarterly turnover rate of 29.5%.

Personality snowflake

Concentration: 100
Portfolio Stability: 29.5
Momentum/Contrarian: 100
Sector conviction: 0
Diversification: 4
Sizing Uniformity: 87.89

Recent moves

Add MLYS
0.0%　-$72.7M
Trim PHAT
+4.5%　-$7.1M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change	4Q Trend
1	MLYS	Mineralys Therapeutics INC	Stock-Other	92.81%	+0.44%	—
2	PHAT	Phathom Pharmaceuticals INC	Stock-Other	7.19%	-0.44%	+4.54%

Portfolio Performance

Performance for Q3 2026

+1.4%

Performance Last 4 Quarters

+86.7%

Stdev: +101.1%
Beta: -0.09
Alpha: +55.2%
Max Drawdown: -37.8%
Annualized Perf: +24.5%
Batting Avg vs S&P: +41.4%
Sortino: +2.01
Stutzer: +0.17
Treynor: -6.26
Sterling: +0.53
Calmar: +0.65
Information Ratio: +0.35
Tracking Error: +102%
Stdev Down: +26.8%
Winning Months %: +44.8%
Losing Months %: +55.2%
Best 12 Months: +223.8%
Worst 12 Months: -41.2%
Efficiency Ratio: +0.16
Sharpe: +0.53
Stdev Sectors: —
Skewness: +3.28
Kurtosis: +11.04
Upside Potential: +4.29

Reported value over time

Sector allocation

Not enough sector-mapped data yet

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	2	$230.7M	30	1MLYS 2PHAT Top holdings2026-03-31 1.MLYS 2.PHAT
2025-12-31	2	$310.5M	18	1MLYS 2PHAT Top holdings2025-12-31 1.MLYS 2.PHAT
2025-09-30	2	$351.4M	84	1MLYS 2PHAT Top holdings2025-09-30 1.MLYS 2.PHAT
2025-06-30	2	$131.7M	0	1MLYS 2PHAT Top holdings2025-06-30 1.MLYS 2.PHAT
2025-03-31	2	$148.7M	0	1MLYS 2PHAT Top holdings2025-03-31 1.MLYS 2.PHAT
2024-12-31	2	$115.9M	0	1MLYS 2PHAT Top holdings2024-12-31 1.MLYS 2.PHAT
2024-09-30	3	$125.4M	0	1MLYS 2PHAT343157M Top holdings2024-09-30 1.MLYS 2.PHAT 3.43157M
2024-06-30	3	$132.5M	0	1MLYS243157M3PHAT Top holdings2024-06-30 1.MLYS 2.43157M 3.PHAT
2024-03-31	3	$148.1M	0	1MLYS243157M3PHAT Top holdings2024-03-31 1.MLYS 2.43157M 3.PHAT
2023-12-31	3	$106.7M	0	1MLYS243157M3PHAT Top holdings2023-12-31 1.MLYS 2.43157M 3.PHAT

Holding changes this quarter

Catalys Pacific, LLC's most significant position changes for 2026-03-31: Add: Phathom Pharmaceuticals INC (PHAT) — shares +4.54%.

Position changes disclosed by Catalys Pacific, LLC for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	MLYS	Mineralys Therapeutics INC	+0.4%	—	Unchanged
2	PHAT	Phathom Pharmaceuticals INC	-0.4%	+4.54%	Add

FAQ

What is Catalys Pacific, LLC and what type of investor is it?

Catalys Pacific, LLC is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $230.7M, spread across 2 disclosed positions.

What are Catalys Pacific, LLC's largest equity positions?

Based on the latest 13F filing, Catalys Pacific, LLC's top holdings by market value are: 1. Mineralys Therapeutics INC (MLYS) — $214.1M (92.8%) 2. Phathom Pharmaceuticals INC (PHAT) — $16.6M (7.2%)

What changes did Catalys Pacific, LLC make in its most recent portfolio filing?

In the latest quarter, Catalys Pacific, LLC was primarily adding exposure — initiating 0 new positions and adding to 1 existing holdings. The largest of these moves: Add: Phathom Pharmaceuticals INC (PHAT) — shares +4.54%

What sectors does Catalys Pacific, LLC focus on?

Sector breakdown data is not yet available for Catalys Pacific, LLC. Check back after the next 13F processing cycle.