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Avidity Partners Management LP

Q4 2025 · Filed 2026-02-13
Market Value
$344M
-20.4%
Holdings
52
-10
New Purchases
11
Added To
5
Closed
14
Reduced
19
Top 10 Concentration
72.4%
Turnover
48.1%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
JBIO 6.28% 2.25% +4.03% $22M
ORKA 5.82% 2.94% +2.88% $20M
CGON 17.77% 14.91% +2.85% $61M
ALNY 2.43% 0.00% +2.43% $8M
ICLR 1.75% 0.00% +1.75% $6M
RGEN 2.39% 0.72% +1.67% $8M
A 1.64% 0.00% +1.64% $6M
CNC 1.43% 0.00% +1.43% $5M
TEVA 3.78% 2.38% +1.40% $13M
MCK 2.27% 1.04% +1.23% $8M
NVO 0.99% 0.00% +0.99% $3M
WAT 0.89% 0.00% +0.89% $3M
ACHC 0.70% 0.00% +0.70% $2M
ITGR 0.68% 0.00% +0.68% $2M
PVLA 0.59% 0.00% +0.59% $2M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
DNTH 25.19% 29.16% -3.97% $87M
BMY 0.00% 2.69% -2.69% $0
NTRA 0.79% 2.62% -1.84% $3M
MTSR 0.00% 1.70% -1.70% $0
UNH 0.00% 1.42% -1.42% $0
DHR 1.13% 2.51% -1.38% $4M
ARVN 0.00% 1.38% -1.38% $0
MDT 3.00% 4.20% -1.20% $10M
JNJ 0.00% 1.15% -1.15% $0
ABBV 0.00% 1.06% -1.06% $0
CARL 0.00% 1.00% -1.00% $0
TMO 1.13% 2.12% -0.99% $4M
GMAB 0.82% 1.76% -0.94% $3M
ARQT 0.00% 0.93% -0.93% $0
EXAS 0.00% 0.93% -0.93% $0

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 3 $0 0.0%
Large Cap 22 $104M 30.1%
Mid Cap 16 $194M 56.4%
Small Cap 7 $36M 10.4%
Micro Cap 4 $10M 3.0%

Portfolio Analytics

Avg Market Cap
$54.8B
Median Market Cap
$8.2B
Avg P/E
35.2
Median P/E
21.8
Avg Dividend Yield
0.01%
Avg Beta
0.75
# Stocks
52
# ETFs / Funds
0

Top Holdings (52 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 DNTH 25.19% 2,104,184 $87M $41.21 -$39M -1,100,000 -34.3%
2 CGON 17.77% 1,472,699 $61M $41.52 -$3M -128,200 -8.0%
3 JBIO 6.28% 1,400,708 $22M $15.43 $12M +273,522 +24.3%
4 ORKA 5.82% 660,424 $20M $30.31 $7M
5 TEVA 3.78% 417,300 $13M $31.21 $3M -92,700 -18.2%
6 BSX 3.17% 114,500 $11M $95.35 -$5M -49,800 -30.3%
7 MDT 3.00% 107,600 $10M $96.06 -$8M -83,000 -43.5%
8 CATX 2.57% 3,210,733 $9M $2.75 -$1M +216,700 +7.2%
9 ALNY 2.43% 21,000 $8M $397.65 +21,000 NEW
10 RGEN 2.39% 50,300 $8M $163.86 $5M +27,000 +115.9%
11 CNTX 2.35% 5,504,855 $8M $1.47 -$609K -3,477,000 -38.7%
12 MCK 2.27% 9,520 $8M $820.29 $3M +3,720 +64.1%
13 ICLR 1.75% 33,100 $6M $182.22 +33,100 NEW
14 A 1.64% 41,500 $6M $136.07 +41,500 NEW
15 PFE 1.47% 203,600 $5M $24.90 -$4M -162,800 -44.4%
16 CNC 1.43% 119,400 $5M $41.15 +119,400 NEW
17 KVUE 1.17% 232,800 $4M $17.25 -$288K -32,400 -12.2%
18 DHR 1.13% 17,000 $4M $228.92 -$7M -37,700 -68.9%
19 TMO 1.13% 6,700 $4M $579.45 -$5M -12,200 -64.5%
20 NVO 0.99% 67,300 $3M $50.88 +67,300 NEW
21 PHAT 0.99% 206,076 $3M $16.59 -$183K -99,924 -32.6%
22 EHC 0.97% 31,600 $3M $106.14 -$2M -10,300 -24.6%
23 CI 0.93% 11,600 $3M $275.23 -$2M -5,000 -30.1%
24 ABC 0.92% 9,400 $3M $337.75 -$3M -9,600 -50.5%
25 INSM 0.90% 17,700 $3M $174.04 $1M +6,100 +52.6%
26 WAT 0.89% 8,100 $3M $379.83 +8,100 NEW
27 ACAD 0.83% 106,900 $3M $26.71 -$218K -37,100 -25.8%
28 GMAB 0.82% 92,000 $3M $30.80 -$5M -156,100 -62.9%
29 NTRA 0.79% 11,800 $3M $229.09 -$9M -58,600 -83.2%
30 ACHC 0.70% 169,000 $2M $14.19 +169,000 NEW
31 ITGR 0.68% 29,800 $2M $78.43 +29,800 NEW
32 ELVN 0.63% 140,300 $2M $15.40 -$711K
33 PVLA 0.59% 19,300 $2M $104.67 +19,300 NEW
34 HQY 0.45% 16,900 $2M $91.61 -$849K -8,400 -33.2%
35 SCYX 0.38% 2,081,660 $1M $0.63 -$1M -1,268,868 -37.9%
36 IQV 0.29% 4,400 $992K $225.41 +4,400 NEW
37 KPTI 0.29% 134,566 $990K $7.36 $110K
38 CORT 0.22% 22,000 $766K $34.80 +22,000 NEW
39 AKRO —% -$2M -40,500 -100.0% SOLD
40 ARVN —% -$6M -698,363 -100.0% SOLD
41 EXAS —% -$4M -73,600 -100.0% SOLD
42 CARL —% -$4M -321,912 -100.0% SOLD
43 UNH —% -$6M -17,800 -100.0% SOLD
44 BMY —% -$12M -257,600 -100.0% SOLD
45 WVE —% -$2M -297,500 -100.0% SOLD
46 IMRX —% -$636K -90,900 -100.0% SOLD
47 BEAM —% -$3M -112,000 -100.0% SOLD
48 ABBV —% -$5M -19,800 -100.0% SOLD
49 ARQT —% -$4M -214,400 -100.0% SOLD
50 XENE —% -$2M -53,400 -100.0% SOLD
51 JNJ —% -$5M -26,800 -100.0% SOLD
52 MTSR —% -$7M -140,500 -100.0% SOLD

New Positions

SymbolValue% Port
ALNY $8M 2.43%
ICLR $6M 1.75%
A $6M 1.64%
CNC $5M 1.43%
NVO $3M 0.99%
WAT $3M 0.89%
ACHC $2M 0.70%
ITGR $2M 0.68%
PVLA $2M 0.59%
IQV $992K 0.29%
CORT $766K 0.22%

Sold Out Positions

SymbolValue% Port
BMY —%
ABBV —%
JNJ —%
UNH —%
ARVN —%
IMRX —%
CARL —%
ARQT —%
BEAM —%
XENE —%
WVE —%
AKRO —%
EXAS —%
MTSR —%
View SEC EDGAR Filings for Avidity Partners Management LP →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms