Institutional Ownership Rhythm Pharmaceuticals, Inc. (RYTM)
This table provides information about the institutional ownership of Rhythm Pharmaceuticals, Inc. (RYTM). We have compiled data on the 245 institutions that hold shares in the stock, with a total of 62.9 Million shares, which have been reported (via 13F filing form) to have a value of $4.02 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
6,741,923
shares
|
$431 Million
0.01% of portfolio
|
Q2 2024
Added 3.25%
|
|
|
Ra Capital Management, L.P.
Boston, MA |
May 15, 2025 Q1 2025 |
6,084,412
shares
|
$389 Million
6.69% of portfolio
|
Q2 2024
New holding
|
|
|
Primecap Management CO
Pasadena, CA |
May 09, 2025 Q1 2025 |
5,787,322
shares
|
$370 Million
0.26% of portfolio
|
Q1 2025
Reduced 11.93%
|
|
|
Baker Bros. Advisors LP
New York, NY |
May 15, 2025 Q1 2025 |
5,604,483
shares
|
$358 Million
3.54% of portfolio
|
Q1 2025
Reduced 7.89%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
May 09, 2025 Q1 2025 |
3,444,926
shares
|
$220 Million
0.0% of portfolio
|
Q1 2025
Added 0.07%
|
|
|
Nea Management Company, LLC
Timonium, MD |
May 14, 2025 Q1 2025 |
2,909,956
shares
|
$186 Million
14.62% of portfolio
|
Q1 2023
Reduced 40.73%
|
|
|
Perceptive Advisors LLC
New York, NY |
May 15, 2025 Q1 2025 |
2,548,445
shares
|
$163 Million
5.65% of portfolio
|
Q1 2025
Reduced 30.76%
|
|
|
State Street Corp
Boston, MA |
May 15, 2025 Q1 2025 |
1,970,733
shares
|
$126 Million
0.0% of portfolio
|
Q1 2025
Added 7.05%
|
|
|
Janus Henderson Group PLC
London, X0 |
May 15, 2025 Q1 2025 |
1,655,350
shares
|
$106 Million
0.05% of portfolio
|
Q1 2025
Added 35.73%
|
|
|
Goldman Sachs Group Inc
New York, NY |
May 16, 2025 Q1 2025 |
1,637,908
shares
|
$105 Million
0.01% of portfolio
|
Q1 2025
Reduced 9.62%
|
|
|
Federated Hermes, Inc.
Pittsburgh, PA |
May 08, 2025 Q1 2025 |
1,591,871
shares
|
$102 Million
0.19% of portfolio
|
Q1 2025
Added 2.73%
|
|
|
Driehaus Capital Management LLC
Chicago, IL |
May 15, 2025 Q1 2025 |
1,458,022
shares
|
$93.1 Million
0.84% of portfolio
|
Q1 2025
Added 12.94%
|
|
|
Westfield Capital Management CO LP
Boston, MA |
May 09, 2025 Q1 2025 |
1,341,092
shares
|
$85.7 Million
0.37% of portfolio
|
Q1 2025
New holding
|
|
|
Geode Capital Management, LLC
Boston, MA |
May 13, 2025 Q1 2025 |
1,287,168
shares
|
$82.2 Million
0.01% of portfolio
|
Q1 2025
Added 2.5%
|
|
|
Price T Rowe Associates Inc
Baltimore, MD |
May 14, 2025 Q1 2025 |
1,199,053
shares
|
$76.6 Million
0.01% of portfolio
|
Q1 2025
Added 75.01%
|
|
|
Checkpoint Capital L.P.
San Francisco, CA |
May 15, 2025 Q1 2025 |
907,240
shares
|
$57.9 Million
26.37% of portfolio
|
Q1 2025
Added 24.62%
|
|
|
Rock Springs Capital Management LP
Baltimore, MD |
May 15, 2025 Q1 2025 |
834,188
shares
|
$53.3 Million
2.64% of portfolio
|
Q1 2025
Reduced 28.26%
|
|
|
Alkeon Capital Management LLC
New York, NY |
May 14, 2025 Q1 2025 |
817,700
shares
|
$52.2 Million
0.09% of portfolio
|
Q1 2025
Reduced 29.97%
|
|
|
Frazier Life Sciences Management, L.P.
Menlo Park, CA |
May 15, 2025 Q1 2025 |
678,760
shares
|
$43.4 Million
2.26% of portfolio
|
Q1 2025
Reduced 63.7%
|
|
|
Hood River Capital Management LLC
Palm Beach Gardens, FL |
May 15, 2025 Q1 2025 |
659,431
shares
|
$42.1 Million
0.66% of portfolio
|
Q1 2025
Added 2.45%
|
|
|
Loomis Sayles & CO L P
|
May 14, 2025 Q1 2025 |
605,764
shares
|
$38.7 Million
0.05% of portfolio
|
Q1 2025
Reduced 2.06%
|
|
|
Northern Trust Corp
Chicago, IL |
May 13, 2025 Q1 2025 |
536,206
shares
|
$34.2 Million
0.0% of portfolio
|
Q1 2025
Reduced 1.67%
|
|
|
Marshall Wace, LLP
London, X0 |
May 15, 2025 Q1 2025 |
535,103
shares
|
$34.2 Million
0.04% of portfolio
|
Q1 2025
Reduced 22.76%
|
|
|
Morgan Stanley
New York, NY |
May 15, 2025 Q1 2025 |
504,049
shares
|
$32.2 Million
0.0% of portfolio
|
Q1 2025
Reduced 10.01%
|
|
|
Polar Capital Holdings PLC
London, X0 |
May 15, 2025 Q1 2025 |
500,000
shares
|
$31.9 Million
0.18% of portfolio
|
Q1 2025
Reduced 66.67%
|