Stocks/Funds/CIK 2038158

NEXTBio Capital Management LP

concentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 2038158
Assets
$215M
Holdings
24
Lifetime alpha vs market
+104.53% annual
Average hold time
0.5 yr
median 0.5 yr

Quarterly history

Cum return +14% vs S&P -4% · α +19% lifetimeAUM $215M · peak $215MFlow $20M (+12%)2025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+35.31%
adds when stocks drop
when a holding falls −10%+
Middle response
-1.59%
baseline attrition
Rally response
-1.67%
trims into rallies
when a holding rises +10%+

Top positions · 24

Ticker$ value% portYoYHold time
TERNTerns Pharmaceuticals, I$32M14.8%0.5 yr
PTGXProtagonist Therapeutics$24M11.2%0.5 yr
STTKShattuck Labs, Inc.$20M9.4%0.5 yr
VORVor Biopharma Inc.$18M8.3%0.5 yr
CMPSCOMPASS Pathways plc$11M5.2%0.5 yr
RYTMRhythm Pharmaceuticals, $11M5.1%0.5 yr
XENEXenon Pharmaceuticals In$11M4.9%0.5 yr
PVLAPalvella Therapeutics, I$10M4.8%0.5 yr
ZBIOZenas BioPharma, Inc.$8M3.9%0.5 yr
IVAInventiva S.A.$7M3.4%0.5 yr
0LOV.LVerastem, Inc.$7M3.2%0.5 yr
$7M3.2%0.5 yr
ORICORIC Pharmaceuticals, In$7M3.1%0.5 yr
GPCRStructure Therapeutics I$6M3.0%0.5 yr
PCVXVaxcyte, Inc.$6M2.6%0.5 yr

Portfolio composition (YoY)

Industry mix
Biotechnology89.3%$192M
Unknown5.5%$12M
Medical - Care Facilities5.2%$11M
Country
US79.3%
Unknown5.5%
GB5.2%
CA4.9%
FR3.4%
CN1.6%
Top 5: 48.9% · Top 10: 71.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 10

TERN Terns Pharmaceuticals, Inc.+$0M
CMPS COMPASS Pathways plc+$7M
RYTM Rhythm Pharmaceuticals, Inc.+$5M
ZBIO Zenas BioPharma, Inc.+$8M
GPCR Structure Therapeutics Inc.+$6M
SMMT Summit Therapeutics Inc.new+$2M
COGT Cogent Biosciences, Inc.+$1M
IRON Disc Medicine, Inc.+$3M
ZLAB Zai Lab Limited+$0M
IVA Inventiva S.A.+$0M

Top sells this quarter · 7

0LOV.L Verastem, Inc.$0M
$3M
CMPX Compass Therapeutics, Inc.$1M
ORIC ORIC Pharmaceuticals, Inc.$5M
EVMN Evommune, Inc.$4M
XENE Xenon Pharmaceuticals Inc.$8M
PCVX Vaxcyte, Inc.$4M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$215M24+14.36%-4.37%+18.73%+0.02B
2025-12-31$170M23