Capital Research Global Investors
Position in RYTM — Rhythm Pharmaceuticals, Inc.
CIK 1422848
Los Angeles, CA
Position in RYTM
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$97,011,556
-$8,432,049 QoQ
Shares Held
1,115,460
+13.2% QoQ
Ownership
1.63%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in RYTM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Capital Research Global Investors holds $13,789,933,930 across 16 Biotechnology names. RYTM ranks #8 (0.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
21,125,964 | $9,433,587,964 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
9,471,181 | $3,133,729,657 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
3,491,386 | $197,228,395 | |
| 4 | IDYA |
IDEAYA Biosciences, Inc.
|
5,163,543 | $172,049,252 | |
| 5 | TECH |
BIO-TECHNE Corp
|
3,188,210 | $166,615,854 | |
| 6 | KYMR |
Kymera Therapeutics, Inc.
|
1,673,275 | $139,367,074 | |
| 7 | ADMA |
Adma Biologics, Inc.
|
11,191,116 | $100,831,955 | |
| 8 | RYTM |
Rhythm Pharmaceuticals, Inc.
This page
|
1,115,460 | $97,011,556 |
All Filings in RYTM
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3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $97,011,556 | 1,115,460 | Shares | Defined | 2026-05-13 | |
| 2025-12-31 | $105,443,605 | 985,086 | Shares | Defined | 2026-02-11 | |
| 2025-09-30 | $60,416,964 | 598,247 | Shares | Defined | 2025-11-13 | |
| No filing history on record for this holder in this stock. | ||||||