DYN
insider transactionsDyne Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-2.8M
16.0K buy · 2.8M sell
Net value · 365d
-$54.5M
$274.8K in · $54.8M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
78
16.0K buy · 2.8M sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
Chief Commercial Officer · 10b5-1
$2.7K
145 sh · $18.33
Own -0%
-
Sell·S
Chief Medical Officer · 10b5-1
$16.3K
887 sh · $18.33
Own -1%
-
Sell·S
John Cox KEY
CEO & President · 10b5-1
$49.2K
2.7K sh · $18.33
Own -1%
-
Buy·P
Director
$33.9K
2.0K sh · $16.94
Own +9%
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Grant·A
Director
$0
35.2K sh
Own New
-
Buy·P
Director
$43.7K
2.5K sh · $17.48
Own +12%
-
Buy·P
Director
$36.4K
2.0K sh · $18.21
Own +11%
-
Buy·P
Director
$42.8K
2.5K sh · $17.12
Own +16%
-
Sell·S
Chief Commercial Officer · 10b5-1
$4.2K
228 sh · $18.36
Own -0%
-
Sell·S
Chief Medical Officer · 10b5-1
$28.7K
1.6K sh · $18.36
Own -1%
-
Sell·S
Erick Lucera KEY
Chief Financial Officer · 10b5-1
$26.6K
1.4K sh · $18.36
Own -1%
-
Sell·S
John Cox KEY
CEO & President · 10b5-1
$60.8K
3.3K sh · $18.36
Own -1%
-
Sell·S
Director · 10b5-1
$313.5K
17.2K sh · $18.18
Own -1%
-
Sell·S
Director · 10b5-1
$7.8K
428 sh · $18.18
Own -5%
-
Sell·S
Director · 10b5-1
$793.0K
43.6K sh · $18.18
Own -1%
-
Sell·S
Director · 10b5-1
$398.6K
21.9K sh · $18.18
Own -1%
-
Sell·S
Director · 10b5-1
$43.3K
2.4K sh · $18.03
Own -0%
-
Sell·S
Director · 10b5-1
$1.1K
60 sh · $18.03
Own -1%
-
Sell·S
Director · 10b5-1
$109.6K
6.1K sh · $18.03
Own -0%
-
Sell·S
Director · 10b5-1
$55.1K
3.1K sh · $18.03
Own -0%
-
Sell·S
Director · 10b5-1
$44.4K
2.5K sh · $18.00
Own -0%
-
Sell·S
Director · 10b5-1
$1.1K
61 sh · $18.00
Own -1%
-
Sell·S
Director · 10b5-1
$112.3K
6.2K sh · $18.00
Own -0%
-
Sell·S
Director · 10b5-1
$56.4K
3.1K sh · $18.00
Own -0%
-
Sell·S
Director · 10b5-1
$399
21 sh · $19.00
Own -0%
-
Sell·S
Director · 10b5-1
$19
1 sh · $19.00
Own -0%
-
Sell·S
Director · 10b5-1
$988
52 sh · $19.00
Own -0%
-
Sell·S
Director · 10b5-1
$494
26 sh · $19.00
Own -0%
-
Sell·S
Director · 10b5-1
$865.4K
47.1K sh · $18.38
Own -4%
-
Sell·S
Director · 10b5-1
$21.5K
1.2K sh · $18.38
Own -12%
-
Sell·S
Director · 10b5-1
$2.2M
119.1K sh · $18.38
Own -2%
-
Sell·S
Director · 10b5-1
$1.1M
59.9K sh · $18.38
Own -4%
-
Sell·S
Director · 10b5-1
$652.4K
35.9K sh · $18.15
Own -3%
-
Sell·S
Director · 10b5-1
$16.2K
894 sh · $18.15
Own -8%
-
Sell·S
Director · 10b5-1
$1.7M
90.9K sh · $18.15
Own -2%
-
Sell·S
Director · 10b5-1
$829.6K
45.7K sh · $18.15
Own -3%
-
Sell·S
Director · 10b5-1
$528.2K
28.6K sh · $18.48
Own -2%
-
Sell·S
Director · 10b5-1
$13.1K
710 sh · $18.48
Own -6%
-
Sell·S
Director · 10b5-1
$1.3M
72.3K sh · $18.48
Own -1%
-
Sell·S
Director · 10b5-1
$671.7K
36.3K sh · $18.48
Own -2%
-
Other·G
Director
$0
53.6K sh
Own -100%
-
Sell·S
Director · 10b5-1
$290.7K
15.1K sh · $19.19
Own -1%
-
Sell·S
Director · 10b5-1
$7.2K
377 sh · $19.19
Own -3%
-
Sell·S
Director · 10b5-1
$735.4K
38.3K sh · $19.19
Own -1%
-
Sell·S
Director · 10b5-1
$369.6K
19.3K sh · $19.19
Own -1%
-
Sell·S
Director · 10b5-1
$1.2M
59.7K sh · $19.68
Own -4%
-
Sell·S
Director · 10b5-1
$29.2K
1.5K sh · $19.68
Own -11%
-
Sell·S
Director · 10b5-1
$3.0M
150.9K sh · $19.68
Own -3%
-
Sell·S
Director · 10b5-1
$1.5M
75.9K sh · $19.68
Own -4%
-
Sell·S
Director · 10b5-1
$53.0K
2.7K sh · $20.00
Own -0%
-
Sell·S
Director · 10b5-1
$12.1K
605 sh · $20.05
Own -0%
-
Sell·S
Director · 10b5-1
$301
15 sh · $20.05
Own -0%
-
Sell·S
Director · 10b5-1
$30.7K
1.5K sh · $20.05
Own -0%
-
Sell·S
Director · 10b5-1
$15.4K
769 sh · $20.05
Own -0%
-
Sell·S
Director · 10b5-1
$1.1M
56.2K sh · $19.51
Own -4%
-
Sell·S
Director · 10b5-1
$27.3K
1.4K sh · $19.51
Own -10%
-
Sell·S
Director · 10b5-1
$2.8M
142.3K sh · $19.51
Own -3%
-
Sell·S
Director · 10b5-1
$1.4M
71.5K sh · $19.51
Own -4%
-
Sell·S
Director · 10b5-1
$166.1K
8.3K sh · $20.01
Own -0%
-
Sell·S
Director · 10b5-1
$2.5M
125.3K sh · $20.07
Own -3%
-
Sell·S
Director · 10b5-1
$1.1M
56.4K sh · $20.06
Own -4%
-
Sell·S
Director · 10b5-1
$28.1K
1.4K sh · $20.06
Own -9%
-
Sell·S
Director · 10b5-1
$2.9M
142.6K sh · $20.06
Own -3%
-
Sell·S
Director · 10b5-1
$1.4M
71.7K sh · $20.06
Own -4%
-
Sell·S
Director · 10b5-1
$4.3M
212.0K sh · $20.29
Own -5%
-
Sell·S
Director · 10b5-1
$133.5K
6.7K sh · $20.06
Own -0%
-
Sell·S
Director · 10b5-1
$234.6K
11.1K sh · $21.10
Own -0%
-
Sell·S
Director · 10b5-1
$1.7M
81.8K sh · $20.27
Own -2%
-
Sell·S
Erick Lucera KEY
Chief Financial Officer · 10b5-1
$106.8K
5.7K sh · $18.64
Own -4%
-
Buy·P
Director
$34.2K
2.0K sh · $17.08
Own +15%
-
Buy·P
Director
$38.7K
2.0K sh · $19.35
Own +17%
-
Sell·S
Director · 10b5-1
$2.5M
129.7K sh · $19.52
Own -3%
-
Sell·S
Director · 10b5-1
$5.6M
281.9K sh · $19.80
Own -6%
-
Sell·S
Director · 10b5-1
$4.2M
219.8K sh · $19.33
Own -4%
-
Sell·S
Director · 10b5-1
$172.7K
9.5K sh · $18.21
Own -0%
-
Sell·S
Director · 10b5-1
$3.1M
177.7K sh · $17.72
Own -3%
-
Buy·P
Director
$45.2K
3.0K sh · $15.06
Own +35%
-
Sell·S
Chief Commercial Officer · 10b5-1
$2.2K
148 sh · $14.90
Own -0%
-
Sell·S
Chief Medical Officer · 10b5-1
$13.5K
904 sh · $14.90
Own -1%
-
Sell·S
John Cox KEY
CEO & President · 10b5-1
$40.7K
2.7K sh · $14.90
Own -1%
-
Grant·A
Chief Medical Officer
$0
130.0K sh
Own New
-
Grant·A
Chief Medical Officer
$0
85.0K sh
Own +97%
-
Grant·A
Chief Commercial Officer
$0
90.0K sh
Own New
-
Grant·A
Chief Commercial Officer
$0
60.0K sh
Own +63%
-
Grant·A
Erick Lucera KEY
Chief Financial Officer
$0
105.0K sh
Own New
-
Grant·A
Erick Lucera KEY
Chief Financial Officer
$0
65.0K sh
Own +98%
-
Grant·A
John Cox KEY
CEO & President
$0
285.0K sh
Own New
-
Grant·A
John Cox KEY
CEO & President
$0
180.0K sh
Own +91%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | Johanna Friedl-Naderer 10b5-1 | Sell S | 145 | $2.7K |
| Jun 16, 2026 | Douglas Kerr 10b5-1 | Sell S | 887 | $16.3K |
| Jun 16, 2026 | John Cox KEY 10b5-1 | Sell S | 2.7K | $49.2K |
| Jun 8, 2026 | Brian S Posner | Buy P | 2.0K | $33.9K |
| Jun 5, 2026 | Edward Hurwitz | Grant A | 35.2K | $0 |
| Jun 5, 2026 | David Charles Lubner | Grant A | 35.2K | $0 |
| Jun 5, 2026 | Jason P Rhodes | Grant A | 35.2K | $0 |
| Jun 5, 2026 | Dirk Kersten | Grant A | 35.2K | $0 |
| Jun 5, 2026 | Carlo Incerti | Grant A | 35.2K | $0 |
| Jun 5, 2026 | Catherine Stehman-Breen | Grant A | 35.2K | $0 |
| Jun 5, 2026 | Brian S Posner | Grant A | 35.2K | $0 |
| Jun 3, 2026 | Brian S Posner | Buy P | 2.5K | $43.7K |
| May 26, 2026 | Brian S Posner | Buy P | 2.0K | $36.4K |
| May 20, 2026 | Brian S Posner | Buy P | 2.5K | $42.8K |
| May 13, 2026 | Johanna Friedl-Naderer 10b5-1 | Sell S | 228 | $4.2K |
| May 13, 2026 | Douglas Kerr 10b5-1 | Sell S | 1.6K | $28.7K |
| May 13, 2026 | Erick Lucera KEY 10b5-1 | Sell S | 1.4K | $26.6K |
| May 13, 2026 | John Cox KEY 10b5-1 | Sell S | 3.3K | $60.8K |
| May 6, 2026 | Jason P Rhodes 10b5-1 | Sell S | 17.2K | $313.5K |
| May 6, 2026 | Jason P Rhodes 10b5-1 | Sell S | 428 | $7.8K |
| May 6, 2026 | Jason P Rhodes 10b5-1 | Sell S | 43.6K | $793.0K |
| May 6, 2026 | Jason P Rhodes 10b5-1 | Sell S | 21.9K | $398.6K |
| May 5, 2026 | Jason P Rhodes 10b5-1 | Sell S | 2.4K | $43.3K |
| May 5, 2026 | Jason P Rhodes 10b5-1 | Sell S | 60 | $1.1K |
| May 5, 2026 | Jason P Rhodes 10b5-1 | Sell S | 6.1K | $109.6K |
| May 5, 2026 | Jason P Rhodes 10b5-1 | Sell S | 3.1K | $55.1K |
| May 4, 2026 | Jason P Rhodes 10b5-1 | Sell S | 2.5K | $44.4K |
| May 4, 2026 | Jason P Rhodes 10b5-1 | Sell S | 61 | $1.1K |
| May 4, 2026 | Jason P Rhodes 10b5-1 | Sell S | 6.2K | $112.3K |
| May 4, 2026 | Jason P Rhodes 10b5-1 | Sell S | 3.1K | $56.4K |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 21 | $399 |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1 | $19 |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 52 | $988 |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 26 | $494 |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 47.1K | $865.4K |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1.2K | $21.5K |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 119.1K | $2.2M |
| Apr 28, 2026 | Jason P Rhodes 10b5-1 | Sell S | 59.9K | $1.1M |
| Apr 27, 2026 | Jason P Rhodes 10b5-1 | Sell S | 35.9K | $652.4K |
| Apr 27, 2026 | Jason P Rhodes 10b5-1 | Sell S | 894 | $16.2K |
| Apr 27, 2026 | Jason P Rhodes 10b5-1 | Sell S | 90.9K | $1.7M |
| Apr 27, 2026 | Jason P Rhodes 10b5-1 | Sell S | 45.7K | $829.6K |
| Apr 24, 2026 | Jason P Rhodes 10b5-1 | Sell S | 28.6K | $528.2K |
| Apr 24, 2026 | Jason P Rhodes 10b5-1 | Sell S | 710 | $13.1K |
| Apr 24, 2026 | Jason P Rhodes 10b5-1 | Sell S | 72.3K | $1.3M |
| Apr 24, 2026 | Jason P Rhodes 10b5-1 | Sell S | 36.3K | $671.7K |
| Apr 24, 2026 | David Charles Lubner | Other G | 53.6K | $0 |
| Apr 23, 2026 | Jason P Rhodes 10b5-1 | Sell S | 15.1K | $290.7K |
| Apr 23, 2026 | Jason P Rhodes 10b5-1 | Sell S | 377 | $7.2K |
| Apr 23, 2026 | Jason P Rhodes 10b5-1 | Sell S | 38.3K | $735.4K |
| Apr 23, 2026 | Jason P Rhodes 10b5-1 | Sell S | 19.3K | $369.6K |
| Apr 22, 2026 | Jason P Rhodes 10b5-1 | Sell S | 59.7K | $1.2M |
| Apr 22, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1.5K | $29.2K |
| Apr 22, 2026 | Jason P Rhodes 10b5-1 | Sell S | 150.9K | $3.0M |
| Apr 22, 2026 | Jason P Rhodes 10b5-1 | Sell S | 75.9K | $1.5M |
| Apr 22, 2026 | Dirk Kersten 10b5-1 | Sell S | 2.7K | $53.0K |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 605 | $12.1K |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 15 | $301 |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1.5K | $30.7K |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 769 | $15.4K |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 56.2K | $1.1M |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1.4K | $27.3K |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 142.3K | $2.8M |
| Apr 21, 2026 | Jason P Rhodes 10b5-1 | Sell S | 71.5K | $1.4M |
| Apr 21, 2026 | Dirk Kersten 10b5-1 | Sell S | 8.3K | $166.1K |
| Apr 20, 2026 | Dirk Kersten 10b5-1 | Sell S | 125.3K | $2.5M |
| Apr 20, 2026 | Jason P Rhodes 10b5-1 | Sell S | 56.4K | $1.1M |
| Apr 20, 2026 | Jason P Rhodes 10b5-1 | Sell S | 1.4K | $28.1K |
| Apr 20, 2026 | Jason P Rhodes 10b5-1 | Sell S | 142.6K | $2.9M |
| Apr 20, 2026 | Jason P Rhodes 10b5-1 | Sell S | 71.7K | $1.4M |
| Apr 17, 2026 | Dirk Kersten 10b5-1 | Sell S | 212.0K | $4.3M |
| Apr 16, 2026 | Dirk Kersten 10b5-1 | Sell S | 6.7K | $133.5K |
| Apr 16, 2026 | Dirk Kersten 10b5-1 | Sell S | 11.1K | $234.6K |
| Apr 15, 2026 | Dirk Kersten 10b5-1 | Sell S | 81.8K | $1.7M |
| Apr 1, 2026 | Erick Lucera KEY 10b5-1 | Sell S | 5.7K | $106.8K |
| Mar 30, 2026 | Brian S Posner | Buy P | 2.0K | $34.2K |
| Mar 11, 2026 | Brian S Posner | Buy P | 2.0K | $38.7K |
| Mar 11, 2026 | Dirk Kersten 10b5-1 | Sell S | 129.7K | $2.5M |
| Mar 10, 2026 | Dirk Kersten 10b5-1 | Sell S | 281.9K | $5.6M |
| Mar 10, 2026 | Dirk Kersten 10b5-1 | Sell S | 219.8K | $4.2M |
| Mar 10, 2026 | Dirk Kersten 10b5-1 | Sell S | 9.5K | $172.7K |
| Mar 9, 2026 | Dirk Kersten 10b5-1 | Sell S | 177.7K | $3.1M |
| Mar 6, 2026 | Brian S Posner | Buy P | 3.0K | $45.2K |
| Mar 5, 2026 | Johanna Friedl-Naderer 10b5-1 | Sell S | 148 | $2.2K |
| Mar 5, 2026 | Douglas Kerr 10b5-1 | Sell S | 904 | $13.5K |
| Mar 5, 2026 | John Cox KEY 10b5-1 | Sell S | 2.7K | $40.7K |
| Feb 12, 2026 | Douglas Kerr | Grant A | 130.0K | $0 |
| Feb 12, 2026 | Douglas Kerr | Grant A | 85.0K | $0 |
| Feb 12, 2026 | Johanna Friedl-Naderer | Grant A | 90.0K | $0 |
| Feb 12, 2026 | Johanna Friedl-Naderer | Grant A | 60.0K | $0 |
| Feb 12, 2026 | Erick Lucera KEY | Grant A | 105.0K | $0 |
| Feb 12, 2026 | Erick Lucera KEY | Grant A | 65.0K | $0 |
| Feb 12, 2026 | John Cox KEY | Grant A | 285.0K | $0 |
| Feb 12, 2026 | John Cox KEY | Grant A | 180.0K | $0 |
About DYN insider trading
This page tracks insider transactions for Dyne Therapeutics, Inc. (DYN) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.