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Cytokinetics

439 hedge funds and large institutions have $9.62B invested in Cytokinetics in 2026 Q1 according to their latest regulatory filings, with 79 funds opening new positions, 175 increasing their positions, 135 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

158% more call options, than puts

Call options by funds: $551M | Put options by funds: $214M

30% more repeat investments, than reductions

Existing positions increased: 175 | Existing positions reduced: 135

27% more first-time investments, than exits

New positions opened: 79 | Existing positions closed: 62

9% more capital invested

Capital invested by funds: $8.86B → $9.62B (+$763M)

7% more funds holding in top 10

Funds holding in top 10: 1516 (+1)

4.54% more ownership

Funds ownership: 114.08%118.61% (+4.5%)

2% more funds holding

Funds holding: 430439 (+9)

Holders
439
Holders Change
+9
Holders Change %
+2.09%
% of All Funds
5.41%
Holding in Top 10
16
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+6.67%
% of All Funds
0.2%
New
79
Increased
175
Reduced
135
Closed
62
Calls
$551M
Puts
$214M
Net Calls
+$337M
Net Calls Change
-$22.5M
Name Holding Trade Value Shares
Change
Change in
Stake
SL
51
Siren LLC
Connecticut
$40.5M +$39M +613,952 New
FCMI
52
Foresite Capital Management IV
California
$33.2M +$2.86M +45,000 +10%
MB
53
MPM BioImpact
Massachusetts
$33M +$31.8M +500,000 New
GKIM
54
GW&K Investment Management
Massachusetts
$32.6M +$1.41M +22,256 +5%
Invesco
55
Invesco
Georgia
$32M +$17.8M +280,102 +137%
Aberdeen Group
56
Aberdeen Group
United Kingdom
$31.9M +$13.5K +213 +0%
EAM
57
Eventide Asset Management
Massachusetts
$31.6M -$32.6K -513 -0.1%
American Century Companies
58
American Century Companies
Missouri
$29.3M +$2.99K +47 +0%
AllianceBernstein
59
AllianceBernstein
Tennessee
$29.2M +$2.93M +46,121 +11%
TD Asset Management
60
TD Asset Management
Ontario, Canada
$27.7M -$7.83M -123,164 -23%
Franklin Resources
61
Franklin Resources
California
$27M -$13.1K -206 -0.1%
RhumbLine Advisers
62
RhumbLine Advisers
Massachusetts
$24.4M +$800K +12,580 +4%
Group One Trading
63
Group One Trading
Illinois
$24M -$2.75M -43,256 -11%
N
64
Nuveen
North Carolina
$23.2M -$1.11M -17,470 -5%
GP
65
GSK plc
$22.4M
CS
66
Candriam SCA
Luxembourg
$22.1M +$12M +188,577 +129%
GGHC
67
Gilder Gagnon Howe & Co
New York
$21.8M -$3.48M -54,831 -14%
Massachusetts Financial Services
68
Massachusetts Financial Services
Massachusetts
$20.5M -$988K -15,553 -5%
Ameriprise
69
Ameriprise
Minnesota
$20M -$15.4M -243,003 -45%
EOJOAM
70
E. Ohman J:or Asset Management
Sweden
$19.8M -$3.95M -62,200 -17%
TECP
71
Trails Edge Capital Partners
Georgia
$19.8M +$19.1M +300,000 New
VPC
72
Vestal Point Capital
New York
$19.8M +$19.1M +300,000 New
Two Sigma Investments
73
Two Sigma Investments
New York
$18.8M +$699K +10,991 +4%
FTM
74
First Turn Management
California
$18.7M -$2.67M -41,968 -13%
IC
75
Ikarian Capital
Texas
$18.7M +$7.05M +110,900 +64%