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RNAM

Avidity Biosciences
RNAM

Delisted

RNAM was delisted on the 26th of February, 2026.

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343 hedge funds and large institutions have $10.8B invested in Avidity Biosciences in 2025 Q4 according to their latest regulatory filings, with 157 funds opening new positions, 70 increasing their positions, 86 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

267% more funds holding in top 10

Funds holding in top 10: 9 → 33 (+24)

94% more first-time investments, than exits

New positions opened: 157 | Existing positions closed: 81

54% more capital invested

Capital invested by funds: $7.01B → $10.8B (+$3.79B)

26% more funds holding

Funds holding: 272 → 343 (+71)

10.95% less ownership

Funds ownership: 110.32% → 99.37% (-11%)

19% less repeat investments, than reductions

Existing positions increased: 70 | Existing positions reduced: 86

76% less call options, than puts

Call options by funds: $64.3M | Put options by funds: $264M

Holders
343
Holders Change
+71
Holders Change %
+26.1%
% of All Funds
4.17%
Holding in Top 10
33
Holding in Top 10 Change
+24
Holding in Top 10 Change %
+266.67%
% of All Funds
0.4%
New
157
Increased
70
Reduced
86
Closed
81
Calls
$64.3M
Puts
$264M
Net Calls
-$199M
Net Calls Change
-$237M

Top Buyers

Rank Fund Capital Flow
1
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$390M
2
PCM
Pentwater Capital Management
Florida
+$389M
3
HI
HBK Investments
Texas
+$282M
4
UOC
UBS O'Connor
Illinois
+$240M
5
BlackRock
BlackRock
New York
+$236M

Top Sellers

Rank Fund Capital Flow
1
Fidelity Investments
Fidelity Investments
Massachusetts
-$1.38B
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$623M
3
Wellington Management Group
Wellington Management Group
Massachusetts
-$603M
4
RI
RTW Investments
New York
-$496M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$490M
Name Holding Trade Value Shares
Change 		Change in
Stake
BNP Paribas Financial Markets
51
BNP Paribas Financial Markets
France
$44M +$37.7M +583,256 +2,137%
LP
52
LMR Partners
United Kingdom
$43.2M +$38.7M +598,525 New
HCM
53
Highbridge Capital Management
New York
$42.2M +$37.8M +585,550 New
SC
54
Sculptor Capital
New York
$40.8M +$36.6M +566,000 New
ACM
55
ADAR1 Capital Management
Texas
$39.4M +$31.8M +492,878 +919%
Barclays
56
Barclays
United Kingdom
$38.3M +$11.6M +178,916 +51%
PAMP
57
Polar Asset Management Partners
Ontario, Canada
$38.2M +$34.2M +529,510 New
EAM
58
Eventide Asset Management
Massachusetts
$37.8M +$9.6M +148,654 +40%
LGM
59
Logos Global Management
California
$36.1M -$6.46M -100,000 -17%
Westfield Capital Management
60
Westfield Capital Management
Massachusetts
$34M +$30.4M +471,127 New
Citigroup
61
Citigroup
New York
$33.7M +$28.3M +438,359 +1,495%
ACM
62
Alethea Capital Management
Washington
$32.2M – – –
CAU
63
Caxton Associates (UK)
$31.9M +$28.6M +442,307 New
SSA
64
Schonfeld Strategic Advisors
New York
$31.7M +$28.4M +439,812 New
PMAM
65
Picton Mahoney Asset Management
Ontario, Canada
$30.7M +$27.5M +425,000 New
Bank of New York Mellon
66
Bank of New York Mellon
New York
$30.1M +$2.31M +35,711 +9%
CM
67
Capula Management
Cayman Islands
$28.1M +$25.2M +389,566 New
OBAM
68
ODDO BHF Asset Management
France
$27.2M +$24.4M +377,500 New
TS
69
Twin Securities
New York
$26.3M +$23.6M +365,144 New
NCM
70
Nearwater Capital Markets
Ireland
$26M +$23.3M +360,200 New
MAM
71
Melqart Asset Management
United Kingdom
$25.7M +$23M +355,691 New
SGCM
72
Sand Grove Capital Management
United Kingdom
$23.9M +$21.4M +331,605 New
HM
73
Harvest Management
New York
$23.8M +$21.3M +329,300 New
GF
74
Gabelli Funds
New York
$23.7M +$21.2M +328,616 New
BGIM
75
Boussard & Gavaudan Investment Management
United Kingdom
$23.7M +$21.2M +328,204 New
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RNAM Hedge Fund Activity: Q4 2025 in Review

343 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Avidity Biosciences (RNAM) for Q4 2025, worth a combined $10.8B — up 54% from $7.01B a quarter earlier.

Buyers outnumbered sellers: 157 funds opened new RNAM positions and 81 closed out — a net gain of 76 holders — while 70 added to existing stakes and 86 trimmed.

The largest buyer was Balyasny Asset Management, opening a new position worth an estimated $390M. The largest seller was Fidelity Investments, cutting an estimated $1.38B.

  • 343 institutional investors held Avidity Biosciences (RNAM) as of Q4 2025, up from 272 in Q3 2025.
  • Funds reported $10.8B of Avidity Biosciences stock for Q4 2025, up 54% quarter-over-quarter.
  • 157 funds opened new Avidity Biosciences positions in Q4 2025 and 81 closed out, a net change of +76 holders.
  • The largest Avidity Biosciences buyer in Q4 2025 was Balyasny Asset Management, an estimated $390M added.
  • The largest Avidity Biosciences seller in Q4 2025 was Fidelity Investments, an estimated $1.38B sold.

Based on aggregated 13F filings for Q4 2025.