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Birchview Capital, LP: 13F holdings, Q2 2026

Hedge fund · SEC EDGAR filings (CIK 1618205) · Explore on the interactive board

Birchview Capital, LP disclosed 72 US equity positions worth $213.8m in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 14, 2026). Its largest position is KLAC at 25.2% of the reported book, followed by BMY, LRCX. The top ten holdings are 59.9% of the book, and the portfolio behaves like about 12 equal-weight positions. Versus the prior filing it opened 14 new positions, added to 13, reduced 18 and exited 15. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.

This manager's most recent filing is 3934 quarter(s) behind the newest quarter on file. Treat these figures as history, not current positioning.
$213.8mreported US equity book
72positions
25.2%largest position
59.9%top 10 weight
11.77effective positions (1/HHI)
2quarters on file since Q1 2026

What does Birchview Capital, LP own? Top holdings as of June 30, 2026

Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 14 new, 13 added, 18 reduced, 15 exited.

#StockSectorWeightValueSharesΔ sharesAction
1 KLAC KLA CORPORATION Technology 25.2%$53.8m178,471 798% added
2 BMY BRISTOL-MYERS SQUIBB CO Healthcare 8.0%$17.1m297,243 -3% reduced
3 LRCX LAM RESEARCH CORPORATION Technology 7.1%$15.2m35,000 -3% reduced
4 NTLA INTELLIA THERAPEUTICS INC Healthcare 3.2%$6.8m385,900 -13% reduced
5 SLDB SOLID BIOSCIENCES INC Healthcare 3.1%$6.7m666,196 6% added
6 BDSX BIODESIX INC 3.0%$6.5m286,804 0% held
7 STOK STOKE THERAPEUTICS INC Healthcare 2.7%$5.8m178,110 -15% reduced
8 OVV OVINTIV INC Energy 2.6%$5.7m107,500 0% held
9 NKTR NEKTAR THERAPEUTICS Healthcare 2.6%$5.7m81,000 161% added
10 CORT CORCEPT THERAPEUTICS INC Healthcare 2.3%$5.0m57,200 21% added
11 NBIX NEUROCRINE BIOSCIENCES INC Healthcare 2.1%$4.6m27,190 0% held
12 PRTA PROTHENA CORP PLC Healthcare 2.1%$4.4m449,019 0% held
13 ACAD ACADIA PHARMACEUTICALS INC Healthcare 2.0%$4.3m171,000 0% held
14 PTGX PROTAGONIST THERAPEUTICS INC Healthcare 2.0%$4.3m35,018 0% held
15 CMPX COMPASS THERAPEUTICS INC 1.7%$3.7m1,675,000 14% added
16 RLMD RELMADA THERAPEUTICS INC Healthcare 1.3%$2.8m408,100 -0% held
17 ALKS ALKERMES PLC Healthcare 1.2%$2.6m50,000 0% held
18 HALO HALOZYME THERAPEUTICS INC Healthcare 1.2%$2.6m33,251 229% added
19 CLDX CELLDEX THERAPEUTICS INC Healthcare 1.2%$2.6m69,900 -0% held
20 CYTK CYTOKINETICS INC Healthcare 1.2%$2.6m30,000 0% held
21 OLMA OLEMA PHARMACEUTICALS INC Healthcare 1.2%$2.5m199,000 -9% reduced
22 VERA VERA THERAPEUTICS INC Healthcare 1.2%$2.5m57,758 31% added
23 UTHR UNITED THERAPEUTICS CORP Healthcare 1.1%$2.4m4,506 0% held
24 ZBIO ZENAS BIOPHARMA INC 1.1%$2.4m93,601 34% added
25 UNIQURE NV 1.1%$2.3m50,697 -50% reduced
26 PACB PACIFIC BIOSCIENCES OF CALIFORNIA INC Healthcare 1.1%$2.3m1,350,000 -10% reduced
27 ABVX ABIVAX SA Healthcare 1.1%$2.3m17,000 new
28 VIR VIR BIOTECHNOLOGY INC Healthcare 1.0%$2.2m220,000 new
29 BIIB BIOGEN INC Healthcare 0.9%$1.9m9,000 80% added
30 EQT EQT CORPORATION Energy 0.9%$1.8m34,619 0% held
31 BIOA BIOAGE LABS INC 0.8%$1.7m69,000 new
32 TVTX TRAVERE THERAPEUTICS INC Healthcare 0.8%$1.6m29,000 -1% reduced
33 QDELUSD QUIDELORTHO CORP 0.7%$1.6m89,377 8% added
34 AXSM AXSOME THERAPEUTICS INC Healthcare 0.7%$1.5m6,000 0% held
35 FHTX FOGHORN THERAPEUTICS INC Healthcare 0.6%$1.4m281,937 0% held
36 BCYC BICYCLE THERAPEUTICS PLC Healthcare 0.6%$1.3m313,616 -32% reduced
37 GPCR STRUCTURE THERAPEUTICS INC Healthcare 0.6%$1.3m24,000 -76% reduced
38 XENE XENON PHARMACEUTICALS INC Healthcare 0.6%$1.3m21,032 0% held
39 NVO NOVO NORDISK A/S Healthcare 0.5%$1.2m24,000 new
40 FCX FREEPORT-MCMORAN CL-B Basic Materials 0.5%$1.1m18,035 -0% held
41 IMNM IMMUNOME INC Healthcare 0.5%$1.1m50,000 0% held
42 PHVS PHARVARIS N V Healthcare 0.5%$1.0m29,847 0% held
43 HROW HARROW HEALTH INC 0.5%$1.0m24,000 0% held
44 ADAG ADAGENE INC 0.5%$1.0m240,000 new
45 DFTX DEFINIUM THERAPEUTICS INC Healthcare 0.4%$940.8k20,000 new
46 SLN SILENCE THERAPEUTICS PLC 0.4%$782.0k71,218 new
47 BBIO BRIDGEBIO PHARMA INC Healthcare 0.3%$651.0k8,741 1% added
48 FDMT 4D MOLECULAR THERAPEUTICS INC Healthcare 0.3%$645.1k48,505 new
49 URGN UROGEN PHARMA LTD Healthcare 0.3%$606.7k16,487 new
50 PHAT PHATHOM PHARMACEUTICALS INC Healthcare 0.3%$596.8k55,000 -72% reduced

What did Birchview Capital, LP sell? Positions exited since the previous filing

StockPrior weightPrior value
NVCR NOVOCURE LTD19.1%$2.2m
ENGENE HOLDINGS INC14.8%$1.7m
RARE ULTRAGENYX PHARMACEUTICAL INC11.3%$1.3m
4XC1 KALVISTA PHARMACEUTICALS INC9.9%$1.1m
VSTM VERASTEM INC6.9%$795.0k
APGE APOGEE THERAPEUTICS INC6.6%$757.5k
APLSUSD APELLIS PHARMACEUTICALS INC4.9%$563.2k
IDYA IDEAYA BIOSCIENCES INC4.9%$561.8k
RCUS ARCUS BIOSCIENCES INC4.8%$559.2k
RGNX REGENXBIO INC4.8%$555.3k
RCKT ROCKET PHARMACEUTICALS INC3.9%$454.8k
VRDN VIRIDIAN THERAPEUTICS INC3.4%$393.2k
OMGBP OUTSET MEDICAL INC3.3%$379.7k
PHR PHREESIA INC1.0%$119.8k
ZNTL ZENTALIS PHARMACEUTICALS INC0.4%$41.0k

Sector mix

SectorWeight
Healthcare52.8%
Technology32.3%
Energy3.5%
Basic Materials0.5%

Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.

Filing history

QuarterPositionsEquity value
Q2 202673$213.8m
Q1 202673$175.7m

How concentrated is Birchview Capital, LP's portfolio?

Across every quarter Birchview Capital, LP has filed, its median largest position is 20.9% of the book and its median top-ten weight is 57.3%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 15.0 completed holding spells, the median lasted 1.0 quarters; 72.0 positions are still open and their final length is unknown.