Avidity Partners Management LP

CIK: 0001791827SEC EDGAR →

Portfolio Value

$346.7M

Holdings

39

As of

Q4 2025

New Positions

13

Closed Positions

24

Top 10 Holdings

RankStockSharesValue% of Portfolio
1

DIANTHUS THERAPEUTICS INC

2,104,184$86.7M
25.01%
2

CG ONCOLOGY INC

1,472,699$61.1M
17.64%
3

JADE BIOSCIENCES INC

1,400,708$21.6M
6.23%
4

ORUKA THERAPEUTICS INC

660,424$20.0M
5.77%
5

TEVA PHARMACEUTICAL INDS LTD

417,300$13.0M
3.76%
6

BOSTON SCIENTIFIC CORP

114,500$10.9M
3.15%
7

MEDTRONIC PLC

107,600$10.3M
2.98%
8

PERSPECTIVE THERAPEUTICS INC

3,210,733$8.8M
2.55%
9

ALNYLAM PHARMACEUTICALS INC

21,000$8.3M
2.41%
10

REPLIGEN CORP

50,300$8.2M
2.38%

Quarterly Changes

Top Buys

JBIO↑ Increased
$11.9M
ALNYNEW
$8.3M
ICLRNEW
$6.0M
AG8NEW
$5.6M
RGEN↑ Increased
$5.1M

Top Sells

DNTH↓ Decreased
$39.4M
BMYCLOSED
$11.6M
NTRA↓ Decreased
$8.6M
MDT↓ Decreased
$7.8M
MTSRCLOSED
$7.4M

New Positions (11)

$8.3M · 21K shares
$6.0M · 33K shares
$5.6M · 42K shares
$4.9M · 119K shares
$3.4M · 67K shares
$3.1M · 8K shares
$2.4M · 169K shares
$2.3M · 30K shares
$2.0M · 19K shares
$991K · 4K shares
$765K · 22K shares

Closed Positions (15)

$11.6M · 258K shares
$7.4M · 141K shares
$6.1M · 18K shares
$6.0M · 698K shares
$5.0M · 27K shares
$4.6M · 20K shares
$4.3M · 322K shares
$4.0M · 214K shares
$4.0M · 74K shares
$2.9M · 15K shares
$2.7M · 112K shares
$2.2M · 298K shares
$2.1M · 53K shares
$1.9M · 41K shares
$636K · 91K shares

Sector Breakdown

Sector# HoldingsValue%
Healthcare34$330.0M95.2%
Unknown2$8.7M2.5%
Consumer Defensive1$4.0M1.2%
Consumer Cyclical1$3.2M0.9%
Financial Services1$765K0.2%