DYNDyne Therapeutics, Inc.

$16.65+27% 1Y

Who owns DYN

244 institutions reported holding DYN for 2026Q2, together 115% of the company, more than the 226 a quarter earlier.

244

Institutions reporting a position · as of 2026Q2 · up from 226 the quarter before

Shares held by institutions
190.6M

Shares held by institutions · 115% of the company · long US equity positions only, as reported on Form 13F

Reported value
$4.23B

Reported value · at Jun 30, 2026 prices, not today's

Opened vs closed
47 / 30

Opened vs closed · new positions against positions exited in the latest quarter

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
24
New positions
47
Positions exited
30
Added to
82
Reduced
69
Shares sold shortsettled Sep 15, 2026
23.4M
Short interestof shares outstanding
14%
Days to coverat the average daily volume
5.5
Change in the short positionsince the Aug 31, 2026 count
+12%
Institutional ownership by quarter, 2020Q3 to 2026Q2
QuarterFilersSharesReported value
2026Q2244190.6M$4.23B
2026Q1226187.8M$3.40B
2025Q4231177.9M$3.48B
2025Q3205155.8M$1.97B
2025Q2194128.6M$1.23B
2025Q1202122.0M$1.29B
2024Q4199111.6M$2.63B
2024Q3196112.1M$4.02B
2024Q2190110.7M$3.91B
2024Q116895.4M$2.71B
2023Q412369.9M$930M
2023Q311359.9M$536M
2023Q211659.2M$665M
2023Q112554.6M$628M
2022Q411349.7M$576M
2022Q310244.6M$566M
Largest reported holders, 2026Q2
HolderShares% of companyValue
T. Rowe Price Investment Management, Inc.30.9Mn/a$687M
BlackRock Inc.12.4Mn/a$276M
Jupiter Topco LLC12.0Mn/a$267M
VANGUARD GROUP INC11.5Mn/a$256M
FMR LLC11.2Mn/a$249M
STATE STREET CORP7.5Mn/a$166M
Orbis Allan Gray Ltd7.0Mn/a$156M
Atlas Venture Life Science Advisors, LLC6.8Mn/a$151M
TCG Crossover Management, LLC4.6Mn/a$103M
PRICE T ROWE ASSOCIATES INC /MD/3.9Mn/a$87M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202623.4M14%5.5
Aug 31, 202620.8M13%13.5
Aug 14, 202621.5M13%10.9
Jul 31, 202622.0M13%7.2
Jul 15, 202621.5M13%10.6
Jun 30, 202622.3M14%8.0
Jun 15, 202622.8M14%14.3
May 29, 202622.3M13%14.6
May 15, 202621.0M13%16.8
Apr 30, 202620.7M13%11.4
Apr 15, 202621.7M13%13.4
Mar 31, 202620.5M12%8.4

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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