MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Position in ALNY — Alnylam Pharmaceuticals, Inc.
CIK 912938
Boston, MA
Position in ALNY
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$105,529,075
-$58,583,766 QoQ
Shares Held
350,560
-29.3% QoQ
Ownership
0.262%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#49
of 780 holders
Holding Since
Jun 2020
19 quarters on record
Voting authority
Sole 72%
Shared 18%
None 9%
Common Shares in ALNY Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $2,249,676,327 across 65 Biotechnology names. ALNY ranks #7 (4.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASND |
Ascendis Pharma A/S
|
1,875,301 | $500,180,281 | |
| 2 | RVMD |
Revolution Medicines, Inc.
|
2,012,317 | $376,866,725 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
423,049 | $210,141,127 | |
| 4 | TECH |
BIO-TECHNE Corp
|
2,746,462 | $194,037,538 | |
| 5 | SRRK |
Scholar Rock Holding Corp
|
2,607,348 | $143,404,140 | |
| 6 | LGND |
Ligand Pharmaceuticals Inc
|
375,762 | $118,774,610 | |
| 7 | ALNY |
Alnylam Pharmaceuticals, Inc.
This page
|
350,560 | $105,529,075 | |
| 8 | BNTX |
BioNTech SE
|
677,708 | $63,060,728 |
All Filings in ALNY
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19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $105,529,075 | 350,560 | Shares | Defined | 2026-08-03 | |
| 2026-03-31 | $164,112,841 | 496,004 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $196,958,826 | 495,307 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $162,577,224 | 356,529 | Shares | Sole | 2025-10-29 | |
| 2023-12-31 | $21,483,855 | 112,240 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $121,885,177 | 688,228 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $127,715,083 | 672,397 | Shares | Sole | 2023-08-09 | |
| 2023-03-31 | $153,399,445 | 765,772 | Shares | Sole | 2023-05-10 | |
| 2022-12-31 | $179,554,553 | 755,542 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $107,205,494 | 535,599 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $50,214,549 | 344,289 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $49,434,902 | 302,743 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $224,220,539 | 1,322,211 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $257,779,836 | 1,365,287 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $233,114,239 | 1,375,143 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $206,428,531 | 1,462,062 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $229,184,805 | 1,763,367 | Shares | Sole | 2021-05-12 | |
| 2020-09-30 | $277,424,782 | 1,905,390 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $157,467,438 | 1,063,179 | Shares | Sole | 2020-11-20 | |
| No filing history on record for this holder in this stock. | ||||||