DYN
DYNE THERAPEUTCS (DYN)
NASDAQ
$18.06-$0.15 (-0.82%)
Price as of Sep 11, 2026 7:30 PM EDT
  • $3.4B
    Market Cap
  • 38.48%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
16.55%
30.9M
+126,486 (+0.41%)
Jun 30, 2026
JANUS HENDERSON GROUP PLC
7.31%
13.6M
-240,346 (-1.76%)
Mar 31, 2026
BLACKROCK, INC.
6.64%
12.4M
+704,460 (+5.68%)
Jun 30, 2026
N/A
6.42%
12.0M
+12.0M (+100.00%)
Jun 30, 2026
JUPITER TOPCO LLC
6.42%
12.0M
+12.0M (+100.00%)
Jun 30, 2026
VANGUARD GROUP INC
6.01%
11.2M
+1.5M (+12.97%)
Dec 31, 2025
FMR LLC
6.00%
11.2M
+2.3M (+20.51%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.9B (82.02%)
  • Mutual Funds385.6M (16.67%)
  • Insiders30.4M (1.31%)
  • Other0 (0.00%)

Insider Transactions

  • 1.31% (30.4M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $581,115.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $1.8B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Friedl-Naderer Johanna
Chief Commercial Officer
Sell
Sep 08, 2026
$3,492.80
185
$18.88
152,897
Cox John
CEO & President
Sell
Sep 08, 2026
$106,823.04
5,658
$18.88
357,507
Kerr Douglas
Chief Medical Officer
Sell
Sep 08, 2026
$24,355.20
1,290
$18.88
162,564
Friedl-Naderer Johanna
Chief Commercial Officer
Sell
Sep 04, 2026
$21,915.00
900
$24.35
153,082
Kerr Douglas
Chief Medical Officer
Sell
Sep 04, 2026
$91,190.75
3,745
$24.35
163,854
Lucera Erick
Chief Financial Officer
Sell
Aug 13, 2026
$47,225.16
1,797
$26.28
119,766
Kerr Douglas
Chief Medical Officer
Sell
Aug 13, 2026
$40,891.68
1,556
$26.28
167,599
Friedl-Naderer Johanna
Chief Commercial Officer
Sell
Aug 13, 2026
$5,939.28
226
$26.28
153,982
Cox John
CEO & President
Sell
Aug 13, 2026
$131,032.08
4,986
$26.28
363,165
Kersten Dirk
Sell
Jul 27, 2026
$6.5M
256,072
$25.50
3.6M
Kersten Dirk
Sell
Jul 27, 2026
$140,318.61
5,388
$26.04
3.6M
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