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Avidity Partners Management LP

Q4 2025 · Filed 2026-02-13
Market Value
$330M
-21.0%
Holdings
49
-12
New Purchases
11
Added To
5
Closed
13
Reduced
17
Top 10 Concentration
74.1%
Turnover
49.0%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
JBIO 6.55% 2.33% +4.22% $22M
CGON 18.54% 15.45% +3.09% $61M
ORKA 6.07% 3.04% +3.03% $20M
ALNY 2.53% 0.00% +2.53% $8M
ICLR 1.83% 0.00% +1.83% $6M
RGEN 2.50% 0.75% +1.75% $8M
A 1.71% 0.00% +1.71% $6M
CNC 1.49% 0.00% +1.49% $5M
MCK 2.37% 1.07% +1.29% $8M
NVO 1.04% 0.00% +1.04% $3M
WAT 0.93% 0.00% +0.93% $3M
ACHC 0.73% 0.00% +0.73% $2M
ITGR 0.71% 0.00% +0.71% $2M
PVLA 0.61% 0.00% +0.61% $2M
INSM 0.93% 0.40% +0.53% $3M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
DNTH 26.29% 30.21% -3.92% $87M
BMY 0.00% 2.78% -2.78% $0
NTRA 0.82% 2.72% -1.90% $3M
MTSR 0.00% 1.76% -1.76% $0
UNH 0.00% 1.47% -1.47% $0
ARVN 0.00% 1.43% -1.43% $0
DHR 1.18% 2.60% -1.42% $4M
MDT 3.13% 4.35% -1.22% $10M
JNJ 0.00% 1.19% -1.19% $0
ABBV 0.00% 1.10% -1.10% $0
CARL 0.00% 1.03% -1.03% $0
TMO 1.18% 2.20% -1.02% $4M
ARQT 0.00% 0.97% -0.97% $0
EXAS 0.00% 0.96% -0.96% $0
GMAB 0.86% 1.82% -0.96% $3M

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 4 $4M 1.2%
Large Cap 23 $102M 30.9%
Mid Cap 13 $179M 54.3%
Small Cap 6 $36M 10.9%
Micro Cap 3 $9M 2.8%

Portfolio Analytics

Avg Market Cap
$63.9B
Median Market Cap
$12.4B
Avg P/E
48.7
Median P/E
32.0
Avg Dividend Yield
0.01%
Avg Beta
0.77
# Stocks
49
# ETFs / Funds
0

Top Holdings (49 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 DNTH 26.29% 2,104,184 $87M $41.21 -$39M -1,100,000 -34.3%
2 CGON 18.54% 1,472,699 $61M $41.52 -$3M -128,200 -8.0%
3 JBIO 6.55% 1,400,708 $22M $15.43 $12M +273,522 +24.3%
4 ORKA 6.07% 660,424 $20M $30.31 $7M — —
5 BSX 3.31% 114,500 $11M $95.35 -$5M -49,800 -30.3%
6 MDT 3.13% 107,600 $10M $96.06 -$8M -83,000 -43.5%
7 CATX 2.68% 3,210,733 $9M $2.75 -$1M +216,700 +7.2%
8 ALNY 2.53% 21,000 $8M $397.65 — +21,000 — NEW
9 RGEN 2.50% 50,300 $8M $163.86 $5M +27,000 +115.9%
10 CNTX 2.45% 5,504,855 $8M $1.47 -$609K -3,477,000 -38.7%
11 MCK 2.37% 9,520 $8M $820.29 $3M +3,720 +64.1%
12 ICLR 1.83% 33,100 $6M $182.22 — +33,100 — NEW
13 A 1.71% 41,500 $6M $136.07 — +41,500 — NEW
14 PFE 1.54% 203,600 $5M $24.90 -$4M -162,800 -44.4%
15 CNC 1.49% 119,400 $5M $41.15 — +119,400 — NEW
16 KVUE 1.22% 232,800 $4M $17.25 -$288K -32,400 -12.2%
17 DHR 1.18% 17,000 $4M $228.92 -$7M -37,700 -68.9%
18 TMO 1.18% 6,700 $4M $579.45 -$5M -12,200 -64.5%
19 NVO 1.04% 67,300 $3M $50.88 — +67,300 — NEW
20 PHAT 1.04% 206,076 $3M $16.59 -$183K -99,924 -32.6%
21 EHC 1.02% 31,600 $3M $106.14 -$2M -10,300 -24.6%
22 CI 0.97% 11,600 $3M $275.23 -$2M -5,000 -30.1%
23 COR 0.96% 9,400 $3M $337.75 -$3M -9,600 -50.5%
24 INSM 0.93% 17,700 $3M $174.04 $1M +6,100 +52.6%
25 WAT 0.93% 8,100 $3M $379.83 — +8,100 — NEW
26 ACAD 0.87% 106,900 $3M $26.71 -$218K -37,100 -25.8%
27 GMAB 0.86% 92,000 $3M $30.80 -$5M -156,100 -62.9%
28 NTRA 0.82% 11,800 $3M $229.09 -$9M -58,600 -83.2%
29 ACHC 0.73% 169,000 $2M $14.19 — +169,000 — NEW
30 ITGR 0.71% 29,800 $2M $78.43 — +29,800 — NEW
31 ELVN 0.66% 140,300 $2M $15.40 -$711K — —
32 PVLA 0.61% 19,300 $2M $104.67 — +19,300 — NEW
33 HQY 0.47% 16,900 $2M $91.61 -$849K -8,400 -33.2%
34 IQV 0.30% 4,400 $992K $225.41 — +4,400 — NEW
35 KPTI 0.30% 134,566 $990K $7.36 $110K — —
36 CORT 0.23% 22,000 $766K $34.80 — +22,000 — NEW
37 AKRO —% — — — -$2M -40,500 -100.0% SOLD
38 ARVN —% — — — -$6M -698,363 -100.0% SOLD
39 BEAM —% — — — -$3M -112,000 -100.0% SOLD
40 JNJ —% — — — -$5M -26,800 -100.0% SOLD
41 XENE —% — — — -$2M -53,400 -100.0% SOLD
42 CARL —% — — — -$4M -321,912 -100.0% SOLD
43 ABBV —% — — — -$5M -19,800 -100.0% SOLD
44 IMRX —% — — — -$636K -90,900 -100.0% SOLD
45 UNH —% — — — -$6M -17,800 -100.0% SOLD
46 EXAS —% — — — -$4M -73,600 -100.0% SOLD
47 MTSR —% — — — -$7M -140,500 -100.0% SOLD
48 ARQT —% — — — -$4M -214,400 -100.0% SOLD
49 BMY —% — — — -$12M -257,600 -100.0% SOLD

New Positions

SymbolValue% Port
ALNY $8M 2.53%
ICLR $6M 1.83%
A $6M 1.71%
CNC $5M 1.49%
NVO $3M 1.04%
WAT $3M 0.93%
ACHC $2M 0.73%
ITGR $2M 0.71%
PVLA $2M 0.61%
IQV $992K 0.30%
CORT $766K 0.23%

Sold Out Positions

SymbolValue% Port
ABBV — —%
BMY — —%
JNJ — —%
UNH — —%
ARVN — —%
ARQT — —%
CARL — —%
BEAM — —%
IMRX — —%
XENE — —%
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