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Rhythm Pharmaceuticals

228 hedge funds and large institutions have $3.44B invested in Rhythm Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 44 funds opening new positions, 87 increasing their positions, 69 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

3.1% less ownership

Funds ownership: 105.63%102.53% (-3.1%)

5% less capital invested

Capital invested by funds: $3.63B → $3.44B (-$197M)

36% less funds holding in top 10

Funds holding in top 10: 117 (-4)

Holders
228
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$21.5M
Puts
$3.46M
Net Calls
Net Calls Change

Top Sellers

1 -$66.1M
2 -$62.8M
3 -$55.5M
4
Primecap Management
Primecap Management
California
-$43.5M
5
BBA
Baker Bros. Advisors
New York
-$26.6M
Name Holding Trade Value Shares
Change
Change in
Stake
151
$530K
152
$493K
153
$473K
154
$408K
155
$352K
156
$350K
157
$341K
158
$340K
159
$332K
160
$323K
161
$320K
162
$319K
163
$316K
164
$299K
165
$294K
166
$291K
167
$289K
168
$286K
169
$280K
170
$269K
171
$252K
172
$243K
173
$243K
174
$243K
175
$239K