Avidity Partners Management LP — 13F Holdings & Portfolio
CIK 1791827 · latest 13F-HR filed 2026-08-14
Avidity Partners Management LP manages $624.4M in 13F-reported U.S. long-equity assets across 45 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are DNTH (32.85%), CGON (15.92%), ORKA (11.59%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 15 new positions, exited 15, added to 17, and trimmed 11.
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.
SUITE 1220
DALLAS, TX 75201
$624.4M
Long-equity book
45
Distinct positions
2026-06-30
Filed 2026-08-14
+15 / −15 / ↑17 / ↓11
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- ORUKA THERAPEUTICS INC$35.1M +94.0%
- DIANTHUS THERAPEUTICS INC$28.5M +16.2%
- JADE BIOSCIENCES INC$18.1M +92.0%
- ENLIVEN THERAPEUTICS INC$12.2M +78.0%
- CG ONCOLOGY INC$12.2M +13.9%
Top Trims
- CONTEXT THERAPEUTICS INC-$10.3M -78.9%
- TEVA PHARMACEUTICAL INDS LTD-$6.8M -50.0%
- PERSPECTIVE THERAPEUTICS INC-$3.7M -14.8%
- VIR BIOTECHNOLOGY INC-$3.2M -37.8%
- MEDTRONIC PLC-$3.2M -36.8%
New Positions
- MOBIA MED INC$10.7M
- IMMUNIC INC$10.3M
- SENSEONICS HLDGS INC$9.1M
- NUVECTIS PHARMA INC$3.7M
- INSULET CORP$3.7M
Exited Positions
- IMMUNIC INC$7.4M
- CENTENE CORP$2.3M
- SCYNEXIS INC$1.9M
- NATERA INC$1.8M
- ICON PLC$1.8M
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 | DIANTHUS THERAPEUTICS INC | DNTH | 252828108 | $205.1M | 32.85% | 2,104,184 | SH |
| 2 | CG ONCOLOGY INC | CGON | 156944100 | $99.4M | 15.92% | 1,398,948 | SH |
| 3 | ORUKA THERAPEUTICS INC | ORKA | 687604108 | $72.4M | 11.59% | 760,424 | SH |
| 4 | JADE BIOSCIENCES INC | JBIO | 008064206 | $37.8M | 6.05% | 1,700,708 | SH |
| 5 | ENLIVEN THERAPEUTICS INC | ELVN | 29337E102 | $27.9M | 4.47% | 550,000 | SH |
| 6 | PERSPECTIVE THERAPEUTICS INC | CATX | 46489V302 | $21.5M | 3.44% | 6,299,999 | SH |
| 7 | AKTIS ONCOLOGY INC | AKTS | 01021M104 | $15.6M | 2.50% | 484,200 | SH |
| 8 | PALVELLA THERAPEUTICS INC NE | PVLA | 697947109 | $10.7M | 1.71% | 70,000 | SH |
| 9 | MOBIA MED INC | MOBI | 60705V103 | $10.7M | 1.71% | 798,282 | SH |
| 10 | REPLIGEN CORP | RGEN | 759916109 | $10.6M | 1.70% | 77,800 | SH |
| 11 | IMMUNIC INC | IMUX | 4525EP200 | $10.3M | 1.65% | 669,941 | SH |
| 12 | SENSEONICS HLDGS INC | SENS | 81727U303 | $9.1M | 1.46% | 1,600,000 | SH |
| 13 | KARYOPHARM THERAPEUTICS INC | KPTI | 48576U205 | $9.0M | 1.45% | 924,487 | SH |
| 14 | TEVA PHARMACEUTICAL INDS LTD | TEVA | 881624209 | $6.8M | 1.09% | 200,000 | SH |
| 15 | DEXCOM INC | DXCM | 252131107 | $6.7M | 1.08% | 100,000 | SH |
| 16 | TEMPUS AI INC | TEM | 88023B103 | $6.1M | 0.97% | 105,000 | SH |
| 17 | MEDTRONIC PLC | MDT | G5960L103 | $5.5M | 0.88% | 70,000 | SH |
| 18 | VIR BIOTECHNOLOGY INC | VIR | 92764N102 | $5.3M | 0.85% | 519,300 | SH |
| 19 | STRUCTURE THERAPEUTICS INC | GPCR | 86366E106 | $5.3M | 0.84% | 98,000 | SH |
| 20 | ENCOMPASS HEALTH CORP | EHC | 29261A100 | $4.2M | 0.68% | 42,000 | SH |
| 21 | TENAX THERAPEUTICS INC | TENX | 88032L605 | $3.9M | 0.62% | 265,934 | SH |
| 22 | NUVECTIS PHARMA INC | NVCT | 67080T108 | $3.7M | 0.59% | 200,000 | SH |
| 23 | INSULET CORP | PODD | 45784P101 | $3.7M | 0.59% | 24,000 | SH |
| 24 | BOSTON SCIENTIFIC CORP | BSX | 101137107 | $3.4M | 0.55% | 80,000 | SH |
| 25 | SATELLOS BIOSCIENCE INC | MSLE | 80401L803 | $3.0M | 0.48% | 387,769 | SH |
| 26 | ALAMAR BIOSCIENCES INC | ALMR | 010911105 | $3.0M | 0.48% | 110,000 | SH |
| 27 | CONTEXT THERAPEUTICS INC | CNTX | 21077P108 | $2.8M | 0.44% | 4,998,267 | SH |
| 28 | GILEAD SCIENCES INC | GILD | 375558103 | $2.5M | 0.40% | 20,000 | SH |
| 29 | CHARLES RIV LABS INTL INC | CRL | 159864107 | $2.3M | 0.36% | 10,000 | SH |
| 30 | PHATHOM PHARMACEUTICALS INC | PHAT | 71722W107 | $2.2M | 0.35% | 200,000 | SH |
| 31 | AVALYN PHARMACEUTICALS INC | AVLN | 05348Y105 | $2.0M | 0.32% | 60,000 | SH |
| 32 | KAILERA THERAPEUTICS INC | KLRA | 482931102 | $1.8M | 0.28% | 80,000 | SH |
| 33 | GENMAB A/S | GMAB | 372303206 | $1.4M | 0.22% | 50,000 | SH |
| 34 | INTELLIA THERAPEUTICS INC | NTLA | 45826J105 | $1.3M | 0.20% | 75,000 | SH |
| 35 | CORVUS PHARMACEUTICALS INC | CRVS | 221015100 | $1.2M | 0.19% | 80,000 | SH |
| 36 | ODDITY TECH LTD | ODD | M7518J104 | $1.1M | 0.17% | 70,000 | SH |
| 37 | SCYNEXIS INC | SCYX | 811292309 | $1.1M | 0.17% | 260,206 | SH |
| 38 | EVOMMUNE INC | EVMN | 30054Y107 | $996.8K | 0.16% | 75,000 | SH |
| 39 | ABBOTT LABORATORIES | ABT | 002824100 | $907.4K | 0.15% | 10,000 | SH |
| 40 | BRIDGEBIO PHARMA INC | BBIO | 10806X102 | $744.8K | 0.12% | 10,000 | SH |
| 41 | PELOTON INTERACTIVE INC | PTON | 70614W100 | $591.0K | 0.09% | 100,000 | SH |
| 42 | LEGEND BIOTECH CORP | LEGN | 52490G102 | $433.2K | 0.07% | 15,000 | SH |
| 43 | BRIDGEBIO ONCOLOGY THERAPEUT | BBOT | 107924102 | $334.2K | 0.05% | 43,853 | SH |
| 44 | SAVARA INC | SVRA | 805111101 | $308.0K | 0.05% | 50,000 | SH |
| 45 | TREVI THERAPEUTICS INC | TRVI | 89532M101 | $124.2K | 0.02% | 6,660 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $624.4M | 45 | 0001791827-26-000005 |
| 2026-03-31 | 2026-05-13 | $441.9M | 46 | 0001791827-26-000003 |
| 2026-03-31 | 2026-05-28 | $493.8M | 45 | 0001791827-26-000004 |
| 2025-12-31 | 2026-02-13 | $346.7M | 39 | 0001791827-26-000002 |
| 2025-09-30 | 2025-11-14 | $439.4M | 43 | 0001791827-25-000008 |