$82.15
+0.23 (+0.28%)
Market Cap
$5.8B
Shares Outstanding
68,285,000
Institutional Holders
229
Total Inst. Value
$309.1B
% of Float Held
116.6%
QoQ Holder Change
+91
Institutional data as of Q1 2025
New Positions
52
Closed Positions
20
Increased
84
Decreased
68
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | $306.6B | 5,787,322 |
| 2 | BlackRock, Inc. | $363.1M | 6,854,755 |
| 3 | BAKER BROS. ADVISORS LP | $296.9M | 5,604,483 |
| 4 | VANGUARD GROUP INC | $182.5M | 3,444,926 |
| 5 | NEA Management Company, LLC | $154.1M | 2,909,956 |
| 6 | PERCEPTIVE ADVISORS LLC | $135.0M | 2,548,445 |
| 7 | STATE STREET CORP | $104.4M | 1,970,733 |
| 8 | FMR LLC | $89.4M | 1,688,375 |
| 9 | GOLDMAN SACHS GROUP INC | $86.8M | 1,637,908 |
| 10 | FEDERATED HERMES, INC. | $84.3M | 1,591,871 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| VANGUARD GROUP INC | +2K | $182.5M |
| STATE STREET CORP | +130K | $104.4M |
| FMR LLC | +1.6M | $89.4M |
| FEDERATED HERMES, INC. | +42K | $84.3M |
| DRIEHAUS CAPITAL MANAGEMENT LLC | +167K | $77.2M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| Frazier Life Sciences Management, L.P. | -1.2M | $36.0M |
| PERCEPTIVE ADVISORS LLC | -1.1M | $135.0M |
| Polar Capital Holdings Plc | -1.0M | $26.5M |
| PRIMECAP MANAGEMENT CO/CA/ | -784K | $306.6B |
| BAKER BROS. ADVISORS LP | -480K | $296.9M |
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Frequently Asked Questions
How many institutional investors hold RYTM?
As of Q1 2025, 229 institutional investors report holding RYTM (Rhythm Pharmaceuticals, Inc.) in their 13F filings.
What percentage of Rhythm Pharmaceuticals, Inc. is owned by institutions?
Institutional investors hold approximately 116.6% of Rhythm Pharmaceuticals, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most RYTM?
The largest institutional holder of RYTM is PRIMECAP MANAGEMENT CO/CA/ with $306.6B in shares.
Are institutions buying or selling RYTM?
This quarter, 52 institutions opened new positions in RYTM and 20 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.