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WELLINGTON MANAGEMENT GROUP LLP

Position in DYN — Dyne Therapeutics, Inc.

CIK 902219 Boston, MA

Position in DYN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,164,401
+$278,173 QoQ
Shares Held
52,427
+7.3% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#116
of 245 holders
Holding Since
Sep 2020
24 quarters on record
Voting authority Sole 0% Shared 94% None 6%

Common Shares in DYN Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $14,994,233,945 across 206 Biotechnology names. DYN ranks #149 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in DYN

Export CSV
24 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,164,401 52,427
2026-03-31 $886,228 48,882
2025-12-31 $921,196 47,096
2025-09-30 $530,223 41,915
2025-06-30 $323,850 34,018
2025-03-31 $379,926 36,322
2024-12-31 $908,236 38,550
2024-09-30 $1,496,462 41,661
2024-06-30 $7,990,431 226,422
2024-03-31 $6,679,823 235,288
2023-12-31 $1,934,804 145,474
2023-09-30 $1,038,776 115,935
2023-06-30 $1,243,845 110,564
2023-03-31 $878,042 76,219
2022-12-31 $904,482 78,040
2022-09-30 $1,046,733 82,420
2022-06-30 $653,425 95,113
2022-03-31 $916,889 95,113
2021-12-31 $20,962,698 1,763,053
2021-09-30 $40,525,083 2,495,387
2021-06-30 $84,316,366 4,007,432
2021-03-31 $58,870,764 3,790,777
2020-12-31 $60,999,162 2,904,722
2020-09-30 $51,338,324 2,542,760