Rhenman & Partners Asset Management AB
Position in ALNY — Alnylam Pharmaceuticals, Inc.
CIK 1599882
Stockholm, V7
Position in ALNY
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$11,403,434
-$6,759,229 QoQ
Shares Held
34,465
-24.5% QoQ
Ownership
0.026%
of shares outstanding
% of Portfolio
1.41%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ALNY Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Rhenman & Partners Asset Management AB holds $297,378,771 across 37 Biotechnology names. ALNY ranks #7 (3.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
|
48,100 | $37,163,984 | |
| 2 | INSM |
INSMED Inc
|
159,760 | $26,123,955 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
43,485 | $19,417,791 | |
| 4 | JAZZ |
Jazz Pharmaceuticals plc
|
75,890 | $14,347,004 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
24,050 | $12,589,453 | |
| 6 | BMRN |
Biomarin Pharmaceutical Inc
|
207,000 | $11,693,430 | |
| 7 | ALNY |
Alnylam Pharmaceuticals, Inc.
This page
|
34,465 | $11,403,434 | |
| 8 | RPRX |
Royalty Pharma plc
|
233,000 | $11,177,010 |
All Filings in ALNY
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $11,403,434 | 34,465 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $18,162,663 | 45,675 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $14,535,000 | 31,875 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $16,694,829 | 51,197 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $13,014,153 | 48,197 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $4,000,270 | 17,000 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $13,847,760 | 50,350 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $20,776,500 | 85,500 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $6,321,735 | 42,300 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $7,177,875 | 37,500 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $7,969,500 | 45,000 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $8,547,300 | 45,000 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $15,224,320 | 76,000 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $17,348,450 | 73,000 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $15,012,000 | 75,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $10,938,750 | 75,000 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $21,227,700 | 130,000 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $29,676,500 | 175,000 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $18,881,000 | 100,000 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $22,885,200 | 135,000 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $19,060,650 | 135,000 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $14,517,649 | 111,700 | Shares | Sole | 2021-01-19 | |
| 2020-09-30 | $14,560,000 | 100,000 | Shares | Sole | 2020-10-13 | |
| 2020-06-30 | $9,196,890 | 62,095 | Shares | Sole | 2020-07-16 | |
| 2020-03-31 | $8,708,000 | 80,000 | Shares | Sole | 2020-04-16 | |
| No filing history on record for this holder in this stock. | ||||||