Stocks/Funds/CIK 2011385

Catalys Pacific, LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 2011385
Assets
$231M
+55.1% YoY
Holdings
2
Lifetime alpha vs market
+37.04% annual
Average hold time
2.5 yr
median 2.5 yr

Quarterly history

Cum return +186% vs S&P +41% · α +145% lifetimeAUM $231M · peak $351MFlow $1M (+0%)2023-122024-062024-122025-062025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+1.04%
adds when stocks drop
when a holding falls −10%+
Middle response
-4.30%
baseline attrition
Rally response
+9.49%
adds into rallies
when a holding rises +10%+

Top positions · 2

Ticker$ value% portYoYHold time
MLYSMineralys Therapeutics, $214M92.8%+70.6%2.5 yr
PHATPhathom Pharmaceuticals,$17M7.2%+77.2%2.5 yr

Portfolio composition (YoY)

Industry mix
Biotechnology100.0%+0.0pp$231M
Country
US100.0%+0.0pp
Top 5: 100.0% · Top 10: 100.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
MLYS$141M+0.10B70.6%
PHAT$7M+0.01B77.2%

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 1

PHAT Phathom Pharmaceuticals, Inc.+$17M

Top sells this quarter · 0

No sells this quarter

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$231M2+70.57%+17.59%+52.97%+0.00B
2025-12-31$311M2+187.34%+17.72%+169.62%-0.03B
2025-09-30$351M2+172.50%+17.52%+154.98%+0.00B
2025-06-30$132M2+10.44%+14.94%-4.50%-0.00B
2025-03-31$149M2+13.53%+8.30%+5.23%+0.00B
2024-12-31$116M2+34.23%+24.89%+9.35%-0.00B
2024-09-30$125M3+8.16%+5.75%+2.41%-0.02B
2024-06-30$132M3-8.99%+4.38%-13.37%-0.00B
2024-03-31$148M3+47.52%+10.39%+37.12%-0.01B
2023-12-31$107M3