Position in ALNY
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$33,191,223
-$10,992,462 QoQ
Shares Held
100,315
-9.7% QoQ
Ownership
0.076%
of shares outstanding
% of Portfolio
0.04%
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, 2026SEI INVESTMENTS CO holds $1,293,395,418 across 195 Biotechnology names. ALNY ranks #8 (2.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INSM |
INSMED Inc
|
1,395,794 | $228,240,234 | |
| 2 | ARGX |
Argenx SE
|
286,966 | $209,556,920 | |
| 3 | ASND |
Ascendis Pharma A/S
|
351,146 | $80,317,623 | |
| 4 | EXEL |
Exelixis, Inc.
|
1,629,670 | $69,896,545 | |
| 5 | INCY |
Incyte Corp
|
714,558 | $67,254,197 | |
| 6 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
133,226 | $59,490,737 | |
| 7 | REGN |
Regeneron Pharmaceuticals, Inc.
|
75,000 | $57,947,999 | |
| 8 | ALNY |
Alnylam Pharmaceuticals, Inc.
This page
|
100,315 | $33,191,223 |
All Filings in ALNY
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $33,191,223 | 100,315 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $44,183,685 | 111,112 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $43,083,336 | 94,481 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $100,637,569 | 308,619 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $74,895,177 | 277,369 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $62,592,459 | 266,000 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $65,431,561 | 237,907 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $9,520,254 | 39,178 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $4,424,167 | 29,603 | Shares | Sole | 2024-05-07 | |
| 2023-12-31 | $5,024,320 | 26,249 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $4,480,983 | 25,302 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $5,653,184 | 29,763 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $5,466,732 | 27,290 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $6,566,744 | 27,632 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $5,678,338 | 28,369 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $3,832,208 | 26,275 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $4,644,293 | 28,442 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $4,314,283 | 25,441 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $4,543,146 | 24,062 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $4,040,169 | 23,833 | Shares | Sole | 2021-08-06 | |
| 2021-03-31 | $2,712,965 | 19,215 | Shares | Sole | 2021-05-12 | |
| 2020-12-31 | $2,822,298 | 21,715 | Shares | Sole | 2021-02-08 | |
| 2020-09-30 | $3,351,275 | 23,017 | Shares | Sole | 2020-12-04 | |
| 2020-06-30 | $4,528,462 | 30,575 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $3,212,054 | 29,509 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||