Birchview Capital, LP — 13F Holdings & Portfolio
CIK 1618205 · latest 13F-HR filed 2026-05-15
Birchview Capital, LP manages $175.7M in 13F-reported U.S. long-equity assets across 73 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are KLAC (16.67%), BMY (10.57%), CMPX (4.41%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 17 new positions, exited 12, added to 20, and trimmed 26.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$175.7M
Long-equity book
73
Distinct positions
2026-03-31
Filed 2026-05-15
+17 / −12 / ↑20 / ↓26
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- INTELLIA THERAPEUTICS INC$2.9M +101.4%
- KLA CORPORATION$2.7M +10.1%
- BRISTOL-MYERS SQUIBB CO$2.2M +13.7%
- BIODESIX INC$2.2M +113.2%
- OVINTIV INC$2.2M +51.5%
Top Trims
- OLEMA PHARMACEUTICALS INC-$3.5M -51.4%
- CASTLE BIOSCIENCES INC-$2.8M -89.9%
- PHREESIA INC-$1.8M -93.6%
- IMMUNOME INC-$1.7M -60.8%
- STRUCTURE THERAPEUTICS INC-$1.4M -23.0%
New Positions
- RELMADA THERAPEUTICS INC$2.8M
- OCULAR THERAPEUTIX INC$2.7M
- CELLDEX THERAPEUTICS INC$2.2M
- COMPASS PATHWAYS LTD$2.1M
- ENGENE HOLDINGS INC$1.7M
Exited Positions
- AMICUS THERAPEUTICS INC$3.6M
- MASIMO CORP$1.1M
- 10X GENOMICS INC$962.3K
- VENTYX BIOSCIENCES INC$910.5K
- ILLUMINA INC$787.0K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | KLA CORPORATION | KLAC | 482480100 | $29.3M | 16.67% | 19,883 | SH |
| 2 | BRISTOL-MYERS SQUIBB CO | BMY | 110122108 | $18.6M | 10.57% | 306,268 | SH |
| 3 | COMPASS THERAPEUTICS INC | CMPX | 20454B104 | $7.8M | 4.41% | 1,465,867 | SH |
| 4 | LAM RESEARCH CORPORATION | LRCX | 512807306 | $7.7M | 4.38% | 36,000 | SH |
| 5 | STOKE THERAPEUTICS INC | STOK | 86150R107 | $6.8M | 3.89% | 210,000 | SH |
| 6 | OVINTIV INC | OVV | 69047Q102 | $6.4M | 3.63% | 107,500 | SH |
| 7 | INTELLIA THERAPEUTICS INC | NTLA | 45826J105 | $5.7M | 3.25% | 445,400 | SH |
| 8 | STRUCTURE THERAPEUTICS INC | GPCR | 86366E106 | $4.8M | 2.74% | 100,000 | SH |
| 9 | SOLID BIOSCIENCES INC | SLDB | 83422E204 | $4.5M | 2.57% | 625,980 | SH |
| 10 | PROTHENA CORP PLC | PRTA | G72800108 | $4.4M | 2.48% | 449,019 | SH |
| 11 | BIODESIX INC | BDSX | 09075X108 | $4.2M | 2.37% | 286,804 | SH |
| 12 | ACADIA PHARMACEUTICALS INC | ACAD | 004225108 | $3.8M | 2.17% | 171,000 | SH |
| 13 | PROTAGONIST THERAPEUTICS INC | PTGX | 74366E102 | $3.7M | 2.10% | 35,000 | SH |
| 14 | NEUROCRINE BIOSCIENCES INC | NBIX | 64125C109 | $3.6M | 2.04% | 27,190 | SH |
| 15 | OLEMA PHARMACEUTICALS INC | OLMA | 68062P106 | $3.3M | 1.86% | 219,000 | SH |
| 16 | RELMADA THERAPEUTICS INC | RLMD | 75955J402 | $2.8M | 1.62% | 409,387 | SH |
| 17 | OCULAR THERAPEUTIX INC | OCUL | 67576A100 | $2.7M | 1.54% | 320,000 | SH |
| 18 | UNITED THERAPEUTICS CORP | UTHR | 91307C102 | $2.7M | 1.52% | 4,500 | SH |
| 19 | NEKTAR THERAPEUTICS | NKTR | 640268306 | $2.2M | 1.27% | 31,000 | SH |
| 20 | CELLDEX THERAPEUTICS INC | CLDX | 15117B202 | $2.2M | 1.27% | 70,095 | SH |
| 21 | NOVOCURE LTD | NVCR | G6674U108 | $2.2M | 1.26% | 202,330 | SH |
| 22 | EQT CORPORATION | EQT | 26884L109 | $2.2M | 1.25% | 34,619 | SH |
| 23 | PHATHOM PHARMACEUTICALS INC | PHAT | 71722W107 | $2.2M | 1.23% | 195,000 | SH |
| 24 | BICYCLE THERAPEUTICS PLC | BCYC | 088786108 | $2.2M | 1.22% | 463,599 | SH |
| 25 | COMPASS PATHWAYS LTD | CMPS | 20451W101 | $2.1M | 1.18% | 375,000 | SH |
| 26 | PACIFIC BIOSCIENCES OF CALIFORNIA INC | PACB | 69404D108 | $2.0M | 1.13% | 1,500,000 | SH |
| 27 | CYTOKINETICS INC | CYTK | 23282W605 | $2.0M | 1.13% | 30,000 | SH |
| 28 | CORCEPT THERAPEUTICS INC | CORT | 218352102 | $1.9M | 1.08% | 47,200 | SH |
| 29 | VERA THERAPEUTICS INC | VERA | 92337R101 | $1.8M | 1.01% | 44,000 | SH |
| 30 | ALKERMES PLC | ALKS | G01767105 | $1.8M | 1.01% | 50,000 | SH |
| 31 | ENGENE HOLDINGS INC | ENGNW | 29286M105 | $1.7M | 0.97% | 250,000 | SH |
| 32 | UNIQURE NV | QURE | N90064101 | $1.6M | 0.94% | 100,697 | SH |
| 33 | ZENAS BIOPHARMA INC | ZBIO | 98937L105 | $1.4M | 0.78% | 70,000 | SH |
| 34 | QUIDELORTHO CORP | — | 74838J101 | $1.4M | 0.77% | 82,548 | SH |
| 35 | FOGHORN THERAPEUTICS INC | FHTX | 344174107 | $1.3M | 0.77% | 281,730 | SH |
| 36 | ULTRAGENYX PHARMACEUTICAL INC | RARE | 90400D108 | $1.3M | 0.74% | 62,000 | SH |
| 37 | XENON PHARMACEUTICALS INC | XENE | 98420N105 | $1.2M | 0.70% | 21,000 | SH |
| 38 | KALVISTA PHARMACEUTICALS INC | KALV | 483497103 | $1.1M | 0.65% | 57,000 | SH |
| 39 | IMMUNOME INC | IMNM | 45257U108 | $1.1M | 0.62% | 50,000 | SH |
| 40 | FREEPORT-MCMORAN CL-B | FCX | 35671D857 | $1.1M | 0.60% | 18,040 | SH |
| 41 | AXSOME THERAPEUTICS INC | AXSM | 05464T104 | $1.0M | 0.58% | 6,000 | SH |
| 42 | BIOGEN INC | BIIB | 09062X103 | $916.6K | 0.52% | 5,000 | SH |
| 43 | LIPOCINE INC | LPCN | 53630X203 | $893.2K | 0.51% | 111,786 | SH |
| 44 | TRAVERE THERAPEUTICS INC | TVTX | 89422G107 | $867.5K | 0.49% | 29,200 | SH |
| 45 | HARROW HEALTH INC | HROW | 415858109 | $846.2K | 0.48% | 24,000 | SH |
| 46 | PHARVARIS N V | PHVS | N69605108 | $843.2K | 0.48% | 29,847 | SH |
| 47 | VERASTEM INC | VSTM | 92337C203 | $795.0K | 0.45% | 150,000 | SH |
| 48 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $757.5K | 0.43% | 9,000 | SH |
| 49 | HALOZYME THERAPEUTICS INC | HALO | 40637H109 | $652.8K | 0.37% | 10,100 | SH |
| 50 | BRIDGEBIO PHARMA INC | BBIO | 10806X102 | $645.2K | 0.37% | 8,688 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $175.7M | 73 | 0001618205-26-000002 |
| 2025-12-31 | 2026-02-13 | $170.8M | 68 | 0001618205-26-000001 |
| 2025-09-30 | 2025-11-13 | $132.4M | 69 | 0001618205-25-000011 |