Stocks/Funds/CIK 1618205

Birchview Capital, LP

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1618205
Assets
$176M
+52.7% YoY
Holdings
73
Lifetime alpha vs market
-5.13% annual
Average hold time
3.0 yr
median 1.5 yr

Quarterly history

Cum return +23% vs S&P +52% · α -29% lifetimeAUM $176M · peak $193MFlow $1M (+1%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-2.71%
trims when stocks drop
when a holding falls −10%+
Middle response
-2.45%
baseline attrition
Rally response
-0.95%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
KLACKLA Corporation$29M16.7%+118.2%1.0 yr
BMYBristol-Myers Squibb Com$19M10.6%+3.4%7.3 yr
CMPXCompass Therapeutics, In$8M4.4%+178.4%1.0 yr
LRCXLam Research Corporation$8M4.4%+196.1%0.5 yr
STOKStoke Therapeutics, Inc.$7M3.9%+389.6%6.3 yr
OVVOvintiv Inc.$6M3.6%+42.6%6.0 yr
NTLAIntellia Therapeutics, I$6M3.3%+80.3%1.0 yr
GPCRStructure Therapeutics I$5M2.7%+178.5%1.0 yr
$5M2.6%1.3 yr
PRTAProthena Corporation plc$4M2.5%-21.5%5.3 yr
$4M2.4%5.5 yr
ACADACADIA Pharmaceuticals I$4M2.2%+34.0%7.0 yr
PTGXProtagonist Therapeutics$4M2.1%+117.9%5.3 yr
NBIXNeurocrine Biosciences, $4M2.0%+19.1%10.5 yr
OLMAOlema Pharmaceuticals, I$3M1.9%+296.5%1.0 yr

Portfolio composition (YoY)

Industry mix
Biotechnology49.3%+11.5pp$87M
Semiconductors21.0%$37M
Drug Manufacturers - General11.1%-25.2pp$19M
Unknown8.1%+1.5pp$14M
Oil & Gas Exploration & Production4.9%+1.3pp$9M
Medical - Devices1.3%-5.7pp$2M
Medical - Instruments & Supplies1.3%+0.8pp$2M
Medical - Care Facilities1.2%-0.8pp$2M
Copper0.6%$1M
Drug Manufacturers - Specialty & Generic0.5%-1.2pp$1M
Country
US82.6%-2.7pp
Unknown8.1%+1.5pp
IE3.5%-1.5pp
GB2.4%
NL1.4%+0.6pp
JE1.3%+0.8pp
CA0.7%+0.1pp
Top 5: 39.9% · Top 10: 54.6% · Top 25: 78.5%

Winners

TickerPrev $PnLYoY %
STOK$1M+0.01B389.6%
PTGX$2M+0.00B117.9%
UTHR$2M+0.00B92.4%
ACAD$4M+0.00B34.0%
BMY$42M+0.00B3.4%

Losers

TickerPrev $PnLYoY %
CORT$8M-0.00B-64.7%
PRTA$4M-0.00B-21.5%
NVCR$1M-0.00B-38.8%

Top buys this quarter · 15

RLMD Relmada Therapeutics, Inc.new+$3M
OCUL Ocular Therapeutix, Inc.new+$3M
CLDX Celldex Therapeutics, Inc.new+$2M
CMPS COMPASS Pathways plcnew+$2M
NTLA Intellia Therapeutics, Inc.+$2M
PACB Pacific Biosciences of Califor+$1M
QURE uniQure N.V.+$1M
ZBIO Zenas BioPharma, Inc.+$1M
UTHR United Therapeutics Corporatio+$1M
IDYA IDEAYA Biosciences, Inc.new+$1M

Top sells this quarter · 15

FOLD Amicus Therapeutics, Inc.exit$4M
KLAC KLA Corporation$27M
PTGX Protagonist Therapeutics, Inc.$2M
IMNM Immunome, Inc.$2M
CSTL Castle Biosciences, Inc.$2M
STOK Stoke Therapeutics, Inc.$2M
MASI Masimo Corporationexit$1M
VTYX Ventyx Biosciences, Inc.exit$1M
TXG 10x Genomics, Inc.exit$1M
BIIB Biogen Inc.$1M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$176M73+25.35%+17.59%+7.76%+0.00B
2025-12-31$171M68+22.83%+17.72%+5.11%+0.02B
2025-09-30$132M69+12.34%+17.52%-5.17%+0.01B
2025-06-30$101M71+6.40%+14.94%-8.54%-0.00B
2025-03-31$115M67+8.99%+8.30%+0.69%-0.01B
2024-12-31$123M67+10.94%+24.89%-13.95%+0.00B
2024-09-30$115M61+10.47%+36.04%-25.57%-0.01B
2024-06-30$108M60-15.38%+24.49%-39.87%-0.00B
2024-03-31$123M59-5.20%+29.62%-34.83%-0.01B
2023-12-31$128M58-14.00%+26.18%-40.18%+0.00B
2023-09-30$118M51-19.50%+21.57%-41.07%+0.00B
2023-06-30$133M54-3.86%+19.42%-23.28%+0.00B
2023-03-31$128M55-4.82%-7.82%+2.99%-0.00B
2022-12-31$142M57-2.09%+7.56%-9.66%+0.00B
2022-09-30$142M60+3.48%-4.93%+8.41%-0.00B
2022-06-30$137M60+1.58%-16.11%+17.69%-0.00B