T. Rowe Price Investment Management, Inc.
Position in DYN — Dyne Therapeutics, Inc.
CIK 1897612
BALTIMORE, MD
Position in DYN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$686,561,894
+$128,415,322 QoQ
Shares Held
30,912,287
+0.4% QoQ
Ownership
16.6%
of shares outstanding
% of Portfolio
0.45%
of 13F equity value
Holder Rank
#1
of 245 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority
Sole 99%
Shared 0%
None 1%
Common Shares in DYN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026T. Rowe Price Investment Management, Inc. holds $12,244,164,567 across 51 Biotechnology names. DYN ranks #6 (5.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASND |
Ascendis Pharma A/S
|
6,754,846 | $1,801,652,525 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
5,642,173 | $1,698,463,338 | |
| 3 | CYTK |
Cytokinetics Inc
|
18,718,498 | $1,594,628,844 | |
| 4 | KYMR |
Kymera Therapeutics, Inc.
|
6,257,261 | $717,520,118 | |
| 5 | PCVX |
Vaxcyte, Inc.
|
12,207,450 | $709,619,068 | |
| 6 | DYN |
Dyne Therapeutics, Inc.
This page
|
30,912,287 | $686,561,894 | |
| 7 | CGON |
CG Oncology, Inc.
|
6,616,899 | $470,130,673 | |
| 8 | IMNM |
Immunome Inc.
|
19,676,883 | $416,953,150 |
All Filings in DYN
Export CSV
6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $686,561,894 | 30,912,287 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $558,146,572 | 30,785,801 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $56,148,310 | 2,870,568 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $35,577,138 | 2,812,422 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $17,074,976 | 1,793,590 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $12,217,018 | 1,167,975 | Shares | Sole | 2025-05-14 | |
| No filing history on record for this holder in this stock. | ||||||