Who Owns MRUS?
— Institutional Ownership & 13F Holdings
$0.00
+0.00 (+0.00%)
Market Cap
—
Shares Outstanding
75,841,625
Institutional Holders
184
Total Inst. Value
$6.3B
% of Float Held
—
QoQ Holder Change
+56
Institutional data as of Q1 2025
New Positions
26
Closed Positions
31
Increased
73
Decreased
61
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | DEERFIELD MANAGEMENT COMPANY, L.P. | $3.7B | 88,869,984 |
| 2 | FMR LLC | $293.2M | 6,966,914 |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | $198.6M | 4,718,172 |
| 4 | Commodore Capital LP | $188.3M | 4,472,840 |
| 5 | Paradigm Biocapital Advisors LP | $141.8M | 3,369,699 |
| 6 | Avoro Capital Advisors LLC | $126.3M | 3,000,000 |
| 7 | SAMLYN CAPITAL, LLC | $100.2M | 2,379,428 |
| 8 | FRANKLIN RESOURCES INC | $83.8M | 1,991,193 |
| 9 | Holocene Advisors, LP | $78.9M | 1,873,625 |
| 10 | Polar Capital Holdings Plc | $71.8M | 1,706,862 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| DEERFIELD MANAGEMENT COMPANY, L.P. | +85.9M | $3.7B |
| FMR LLC | +67K | $293.2M |
| WELLINGTON MANAGEMENT GROUP LLP | +1.2M | $198.6M |
| Commodore Capital LP | +599K | $188.3M |
| Paradigm Biocapital Advisors LP | +1.7M | $141.8M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| Boxer Capital Management, LLC | -1.2M | $29.5M |
| MARSHALL WACE, LLP | -602K | $888K |
| FEDERATED HERMES, INC. | -549K | $44.0M |
| D. E. Shaw & Co., Inc. | -308K | $2.1M |
| T. Rowe Price Investment Management, Inc. | -299K | $21.5M |
Frequently Asked Questions
How many institutional investors hold MRUS?
As of Q1 2025, 184 institutional investors report holding MRUS (null) in their 13F filings.
Which hedge fund owns the most MRUS?
The largest institutional holder of MRUS is DEERFIELD MANAGEMENT COMPANY, L.P. with $3.7B in shares.
Are institutions buying or selling MRUS?
This quarter, 26 institutions opened new positions in MRUS and 31 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.