Insider Trading & Ownership - Cox John

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Cox John
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2025-03-05
Sale
2025-03-07
4:07 pm
Dyne Therapeutics Inc. DYN Cox John
CEO & President
4,061 $11.83 $48,042 178,239
(Indirect
Direct)
View
2024-09-04
Purchase
2024-09-04
5:42 pm
Dyne Therapeutics Inc. DYN Cox John
CEO & President
32,000 $33.04 $1,057,216 13,000
(Indirect
Direct)
View
2023-08-11
Sale
2023-08-11
4:10 pm
Sigilon Therapeutics Inc. SGTX Cox John
Director
341 $0 $0 0
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
Company Symnbol Insider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2024-12-04
Option Award
2024-12-06
4:05 pm
N/A
2034-12-03
Dyne Therapeutics Inc. DYN Cox John
CEO & President
377,400 $0 414,400
(Direct)
View

Ownership(A)
2024-04-04
9:07 pm
N/A
N/A
Dyne Therapeutics Inc. DYN Cox John
CEO & President
0 $0 5,000
(Direct)
View
2024-03-25
Option Award
2024-03-27
4:24 pm
N/A
2034-03-24
Dyne Therapeutics Inc. DYN Cox John
See Remarks
679,853 $0 679,853
(Direct)
View

Ownership
2024-03-27
4:13 pm
N/A
N/A
Dyne Therapeutics Inc. DYN Cox John
See Remarks
0 $0 10,000
(Direct)
View
2023-05-19
Option Award
2023-05-22
4:20 pm
N/A
2033-05-18
Sigilon Therapeutics Inc. SGTX Cox John
Director
8,888 $0 8,888
(Direct)
View
2022-05-26
Option Award
2022-05-27
5:00 pm
N/A
2032-05-25
Sigilon Therapeutics Inc. SGTX Cox John
Director
8,888 $0 8,888
(Direct)
View
2021-06-24
Option Award
2021-06-28
07:15 am
N/A
2031-06-23
Sigilon Therapeutics Inc. SGTX Cox John
Director
8,888 $9.97 8,888
(Direct)
View
2020-12-08
Conversion
2020-12-10
6:15 pm
N/A
N/A
Sigilon Therapeutics Inc. SGTX Cox John
Director
4,444 $0 4,444
(Indirect)
View

Ownership
2020-12-03
8:42 pm
N/A
N/A
Sigilon Therapeutics Inc. SGTX Cox John
Director
0 $0 59,999
(Indirect)
View
(A) Indicate amendment filing.