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Asset Manager ← All Institutions

Avidity Partners Management LP

Q2 2025 · Filed 2025-08-14
Market Value
$487M
+3.9%
Holdings
72
+1
New Purchases
16
Added To
17
Closed
22
Reduced
13
Top 10 Concentration
50.2%
Turnover
52.8%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
HNGE 3.43% 0.00% +3.43% $17M
NTRA 6.91% 3.59% +3.32% $34M
ISRG 3.02% 0.00% +3.02% $15M
CGON 8.01% 5.12% +2.88% $39M
GMAB 2.76% 0.00% +2.76% $13M
RGEN 2.72% 0.00% +2.72% $13M
JBIO 2.31% 0.00% +2.31% $11M
MCK 2.03% 0.00% +2.03% $10M
EHC 1.86% 0.00% +1.86% $9M
THC 3.83% 2.07% +1.77% $19M
DHR 3.64% 1.95% +1.69% $18M
OMDA 1.47% 0.00% +1.47% $7M
MDGL 1.18% 0.00% +1.18% $6M
DXCM 3.77% 2.62% +1.15% $18M
PHAT 2.10% 1.07% +1.03% $10M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
UNH 2.05% 5.64% -3.59% $10M
REGN 0.00% 3.44% -3.44% $0
HUM 1.39% 4.57% -3.19% $7M
GKOS 0.00% 2.81% -2.81% $0
SNDX 0.29% 2.42% -2.13% $1M
JAZZ 0.00% 2.12% -2.12% $0
NBIX 0.00% 2.02% -2.02% $0
XBI 0.00% 1.63% -1.63% $0
CNTA 0.00% 1.62% -1.62% $0
AVTR 0.00% 1.57% -1.57% $0
IDYA 0.00% 1.55% -1.55% $0
BEAM 1.43% 2.96% -1.53% $7M
JANX 0.00% 1.49% -1.49% $0
RARE 1.15% 2.49% -1.34% $6M
BPMC 0.00% 1.29% -1.29% $0

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 1 $10M 2.0%
Large Cap 28 $271M 55.6%
Mid Cap 24 $152M 31.2%
Small Cap 14 $48M 9.8%
Micro Cap 5 $7M 1.4%

Portfolio Analytics

Avg Market Cap
$24.4B
Median Market Cap
$5.9B
Avg P/E
28.0
Median P/E
24.1
Avg Dividend Yield
0.00%
Avg Beta
0.88
# Stocks
71
# ETFs / Funds
1

Top Holdings (72 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 CGON 8.01% 1,499,942 $39M $26.00 $15M +519,000 +52.9%
2 BSX 7.10% 321,800 $35M $107.41 $669K -14,200 -4.2%
3 NTRA 6.91% 199,300 $34M $168.94 $17M +80,100 +67.2%
4 DNTH 6.67% 1,742,902 $32M $18.63 $1M +22,000 +1.3%
5 EXAS 3.87% 355,000 $19M $53.14 $4M +2,000 +0.6%
6 THC 3.83% 106,000 $19M $176.00 $9M +34,000 +47.2%
7 DXCM 3.77% 210,500 $18M $87.29 $6M +30,500 +16.9%
8 DHR 3.64% 89,700 $18M $197.54 $9M +45,200 +101.6%
9 HNGE 3.43% 322,344 $17M $51.75 +322,344 NEW
10 ISRG 3.02% 27,100 $15M $543.41 +27,100 NEW
11 GMAB 2.76% 650,000 $13M $20.66 +650,000 NEW
12 RGEN 2.72% 106,500 $13M $124.38 +106,500 NEW
13 TMO 2.46% 29,600 $12M $405.46 $4M +14,100 +91.0%
14 TEVA 2.37% 689,500 $12M $16.76 $4M +208,500 +43.4%
15 JBIO 2.31% 1,127,186 $11M $9.99 +1,127,186 NEW
16 PHAT 2.10% 1,064,500 $10M $9.59 $5M +264,500 +33.1%
17 UNH 2.05% 32,000 $10M $311.97 -$16M -18,500 -36.6%
18 MCK 2.03% 13,500 $10M $732.78 +13,500 NEW
19 AXSM 2.03% 94,500 $10M $104.39 $884K +17,500 +22.7%
20 ABC 2.02% 32,800 $10M $299.85 -$1M -6,500 -16.5%
21 HQY 1.98% 92,000 $10M $104.76 $3M +14,000 +17.9%
22 EHC 1.86% 74,000 $9M $122.63 +74,000 NEW
23 RVMD 1.73% 228,600 $8M $36.79 $879K +15,600 +7.3%
24 AKRO 1.47% 134,000 $7M $53.36 $5M +77,000 +135.1%
25 OMDA 1.47% 390,600 $7M $18.30 +390,600 NEW
26 BEAM 1.43% 409,400 $7M $17.01 -$7M -300,117 -42.3%
27 HUM 1.39% 27,600 $7M $244.48 -$15M -53,400 -65.9%
28 CATX 1.31% 1,858,596 $6M $3.44 $2M -338,674 -15.4%
29 OGN 1.27% 640,000 $6M $9.68 -$2M +105,000 +19.6%
30 BBIO 1.24% 140,000 $6M $43.18 $3M +65,000 +86.7%
31 INSM 1.22% 59,000 $6M $100.64 -$2M -48,000 -44.9%
32 MDGL 1.18% 19,000 $6M $302.64 +19,000 NEW
33 RARE 1.15% 154,000 $6M $36.36 -$6M -168,100 -52.2%
34 CNTX 1.01% 7,477,255 $5M $0.66 $323K +55
35 ORKA 0.81% 352,124 $4M $11.21 $335K
36 ARQT 0.77% 268,000 $4M $14.02 +268,000 NEW
37 DOCS 0.76% 60,000 $4M $61.34 -$3M -62,500 -51.0%
38 XENE 0.69% 107,891 $3M $31.30 -$4M -121,109 -52.9%
39 VRNA 0.66% 33,800 $3M $94.58 +33,800 NEW
40 QURE 0.59% 207,000 $3M $13.94 -$678K -129,200 -38.4%
41 CAH 0.52% 15,000 $3M $168.00 +15,000 NEW
42 SPRY 0.50% 140,000 $2M $17.45 +140,000 NEW
43 NTLA 0.45% 232,000 $2M $9.38 +232,000 NEW
44 MLTX 0.38% 39,000 $2M $47.20 +39,000 NEW
45 ARVN 0.37% 243,162 $2M $7.36 -$1M -170,000 -41.1%
46 SNDX 0.29% 150,000 $1M $9.37 -$10M -775,000 -83.8%
47 SCYX 0.17% 1,228,910 $829K $0.67 -$341K
48 KPTI 0.12% 134,566 $580K $4.31 $77K
49 ALT 0.08% 105,000 $406K $3.87 +105,000 NEW
50 ELVN 0.05% 11,300 $227K $20.06 $4K
51 RGNX —% -$2M -260,000 -100.0% SOLD
52 BRKRP —% -$5M -115,000 -100.0% SOLD
53 XBI —% -$8M -94,000 -100.0% SOLD
54 JAZZ —% -$10M -80,000 -100.0% SOLD
55 NBIX —% -$9M -85,700 -100.0% SOLD
56 REGN —% -$16M -25,400 -100.0% SOLD
57 BPMC —% -$6M -68,500 -100.0% SOLD
58 LXEO —% -$2M -645,000 -100.0% SOLD
59 JANX —% -$7M -258,000 -100.0% SOLD
60 RPRX —% -$3M -87,000 -100.0% SOLD
61 HYPR —% -$159K -222,174 -100.0% SOLD
62 IONS —% -$2M -60,000 -100.0% SOLD
63 GKOS —% -$13M -134,000 -100.0% SOLD
64 AVTR —% -$7M -453,000 -100.0% SOLD
65 PCVX —% -$868K -23,000 -100.0% SOLD
66 UTHR —% -$5M -16,800 -100.0% SOLD
67 CNTA —% -$8M -529,000 -100.0% SOLD
68 ACAD —% -$3M -169,000 -100.0% SOLD
69 VERA —% -$2M -91,000 -100.0% SOLD
70 CAPR —% -$2M -239,000 -100.0% SOLD
71 IDYA —% -$7M -445,000 -100.0% SOLD
72 MIRM —% -$2M -40,000 -100.0% SOLD

New Positions

SymbolValue% Port
HNGE $17M 3.43%
ISRG $15M 3.02%
GMAB $13M 2.76%
RGEN $13M 2.72%
JBIO $11M 2.31%
MCK $10M 2.03%
EHC $9M 1.86%
OMDA $7M 1.47%
MDGL $6M 1.18%
ARQT $4M 0.77%
VRNA $3M 0.66%
CAH $3M 0.52%
SPRY $2M 0.50%
NTLA $2M 0.45%
MLTX $2M 0.38%

Sold Out Positions

SymbolValue% Port
AVTR —%
GKOS —%
JANX —%
CNTA —%
LXEO —%
CAPR —%
ACAD —%
IONS —%
JAZZ —%
HYPR —%
MIRM —%
PCVX —%
RGNX —%
REGN —%
NBIX —%
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