Position in ALNY
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$174,653,692
+$5,216,159 QoQ
Shares Held
580,187
+13.3% QoQ
Ownership
0.434%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#39
of 780 holders
Holding Since
Jun 2021
21 quarters on record
Voting authority
Sole 92%
Shared 0%
None 8%
Common Shares in ALNY Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026LOOMIS SAYLES & CO L P holds $4,031,464,727 across 23 Biotechnology names. ALNY ranks #3 (4.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
3,920,953 | $1,947,654,982 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
1,859,172 | $1,159,268,108 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
This page
|
580,187 | $174,653,692 | |
| 4 | LGND |
Ligand Pharmaceuticals Inc
|
291,805 | $92,236,641 | |
| 5 | AXSM |
Axsome Therapeutics, Inc.
|
239,490 | $58,619,966 | |
| 6 | VCEL |
Vericel Corp
|
1,200,239 | $53,398,633 | |
| 7 | MIRM |
Mirum Pharmaceuticals, Inc.
|
443,636 | $51,936,466 | |
| 8 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
434,102 | $48,198,345 |
All Filings in ALNY
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $174,653,692 | 580,187 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $169,437,533 | 512,097 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $194,409,891 | 488,897 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $228,306,432 | 500,672 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $158,912,786 | 487,328 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $134,330,628 | 497,484 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $118,371,518 | 503,045 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $144,474,083 | 525,303 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $138,335,526 | 569,282 | Shares | Defined | 2024-08-13 | |
| 2024-03-31 | $86,957,631 | 581,851 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $116,516,625 | 608,728 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $110,758,517 | 625,401 | Shares | Defined | 2023-11-09 | |
| 2023-06-30 | $122,538,461 | 645,143 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $131,855,831 | 658,226 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $169,338,932 | 712,556 | Shares | Defined | 2023-02-10 | |
| 2022-09-30 | $149,669,639 | 747,750 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $120,775,322 | 828,079 | Shares | Defined | 2022-08-05 | |
| 2022-03-31 | $141,857,860 | 868,748 | Shares | Defined | 2022-05-13 | |
| 2021-12-31 | $168,975,786 | 996,437 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $182,788,282 | 968,107 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $160,376,938 | 946,065 | Shares | Defined | 2021-08-13 | |
| No filing history on record for this holder in this stock. | ||||||