DYN
DYNE THERAPEUTCS (DYN)
NASDAQ
$23.80+$0.16 (+0.68%)
Price as of Jul 14, 2026 4:03 AM EDT
  • $3.9B
    Market Cap
  • 165.32%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
18.62%
30.8M
+13.2M (+43.03%)
Mar 31, 2026
JANUS HENDERSON GROUP PLC
8.26%
13.6M
-240,346 (-1.76%)
Mar 31, 2026
BLACKROCK, INC.
7.08%
11.7M
+509,032 (+4.35%)
Mar 31, 2026
VANGUARD GROUP INC
6.78%
11.2M
+1.5M (+12.97%)
Dec 31, 2025
RA CAPITAL MANAGEMENT, L.P.
5.88%
9.7M
0 (0.00%)
Jun 30, 2025
ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC
5.52%
9.1M
0 (0.00%)
Mar 31, 2026
FMR LLC
5.39%
8.9M
+2.3M (+26.26%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.7B (82.62%)
  • Mutual Funds323.7M (15.78%)
  • Insiders32.8M (1.60%)
  • Other0 (0.00%)

Insider Transactions

  • 1.60% (32.8M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $1.9M
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $1.6B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Rhodes Jason P
Sell
Jul 07, 2026
$2.9M
124,379
$23.17
4.1M
Rhodes Jason P
Sell
Jul 07, 2026
$698,844.94
29,587
$23.62
4.1M
Rhodes Jason P
Sell
Jul 07, 2026
$1.4M
62,543
$23.17
1.2M
Rhodes Jason P
Sell
Jul 07, 2026
$350,615.28
14,844
$23.62
1.1M
Rhodes Jason P
Sell
Jul 07, 2026
$1.1M
49,193
$23.17
826,719
Rhodes Jason P
Sell
Jul 07, 2026
$275,527.30
11,665
$23.62
815,054
Rhodes Jason P
Sell
Jul 07, 2026
$118,050.00
5,000
$23.61
2,962
Rhodes Jason P
Sell
Jul 06, 2026
$5.8M
253,039
$22.79
4.2M
Rhodes Jason P
Sell
Jul 06, 2026
$2.9M
127,182
$22.79
1.2M
Rhodes Jason P
Sell
Jul 06, 2026
$2.3M
100,019
$22.79
875,912
Rhodes Jason P
Sell
Jun 29, 2026
$2.2M
102,969
$21.14
4.5M
Rhodes Jason P
Sell
Jun 29, 2026
$1.1M
51,756
$21.14
1.3M
Rhodes Jason P
Sell
Jun 29, 2026
$860,440.28
40,702
$21.14
975,931
Rhodes Jason P
Sell
Jun 26, 2026
$3.5M
162,954
$21.28
4.6M
Rhodes Jason P
Sell
Jun 26, 2026
$1.7M
81,903
$21.28
1.4M
Rhodes Jason P
Sell
Jun 26, 2026
$1.4M
64,411
$21.28
1.0M
Lucera Erick
Chief Financial Officer
Sell
Jun 25, 2026
$48,113.94
2,362
$20.37
121,563
Kersten Dirk
Sell
Jun 23, 2026
$1.5M
71,629
$21.04
3.8M
Kersten Dirk
Sell
Jun 23, 2026
$35,582.75
1,657
$21.47
3.8M
Greene Barry E
Award
Jun 22, 2026
$0.00
57,463
$0.00
57,463
Kersten Dirk
Sell
Jun 22, 2026
$3.9M
190,676
$20.57
3.9M
Kersten Dirk
Sell
Jun 18, 2026
$941,373.42
46,901
$20.07
4.1M
Kersten Dirk
Sell
Jun 17, 2026
$754,316.07
37,454
$20.14
4.2M
Friedl-Naderer Johanna
Chief Commercial Officer
Sell
Jun 16, 2026
$2,657.85
145
$18.33
154,208
Lucera Erick
Chief Financial Officer
Sell
Apr 01, 2026
$106,751.28
5,727
$18.64
125,373
Posner Brian S
Buy
Mar 30, 2026
$34,160.00
2,000
$17.08
15,500
Kersten Dirk
Sell
Mar 11, 2026
$2.5M
129,672
$19.52
4.6M
Posner Brian S
Buy
Mar 11, 2026
$38,700.00
2,000
$19.35
13,500
Kersten Dirk
Sell
Mar 10, 2026
$172,687.13
9,482
$18.21
5.3M
Kersten Dirk
Sell
Mar 10, 2026
$4.2M
219,758
$19.32
5.1M