Rafferty Asset Management, LLC
Position in RYTM — Rhythm Pharmaceuticals, Inc.
CIK 1389426
New York, NY
Position in RYTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$4,357,631
-$1,585,872 QoQ
Shares Held
50,105
-9.8% QoQ
Ownership
0.073%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
21 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, 2026Rafferty Asset Management, LLC holds $409,131,400 across 136 Biotechnology names. RYTM ranks #36 (1.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
54,572 | $24,368,580 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
29,589 | $22,861,644 | |
| 3 | INSM |
INSMED Inc
|
116,069 | $18,979,602 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
50,553 | $16,726,471 | |
| 5 | APLS |
Apellis Pharmaceuticals, Inc.
|
180,471 | $7,260,348 | |
| 6 | MRNA |
Moderna, Inc.
|
114,194 | $5,801,055 | |
| 7 | INCY |
Incyte Corp
|
60,565 | $5,700,377 | |
| 8 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
10,452 | $5,471,308 |
All Filings in RYTM
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,357,631 | 50,105 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $5,943,503 | 55,526 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $5,628,576 | 55,734 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $3,261,299 | 51,611 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $3,058,064 | 57,732 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $2,821,056 | 50,394 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,383,136 | 64,576 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $2,979,395 | 72,562 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $9,474,407 | 218,657 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $5,592,434 | 121,654 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $3,732,281 | 162,804 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $4,276,582 | 259,344 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $4,552,946 | 255,210 | Shares | Sole | 2023-05-11 | |
| 2022-12-31 | $8,911,098 | 306,013 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $6,426,056 | 262,288 | Shares | Sole | 2022-11-14 | |
| 2021-12-31 | $1,113,708 | 111,594 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $1,082,073 | 82,854 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $1,625,551 | 83,021 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $2,587,857 | 121,667 | Shares | Sole | 2021-05-10 | |
| 2020-12-31 | $290,729 | 9,779 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $231,457 | 10,681 | Shares | Sole | 2020-11-13 | |
| No filing history on record for this holder in this stock. | ||||||