Cox John Insider Trading Activity

Average Profitability
<0.0001%
Insider Buys Quantity
1
Insider Buys Sum
$264,304.00
Insider Sells Quantity
16
Insider Sells Sum
$19.72M

Insider Activity of Cox John

According to the SEC Form 4 filings, Cox John, being in a position of

  1. CEO & President at Dyne Therapeutics, Inc.,
    оver the last 12 months, has bought 0 shares, and sold 16374 shares for $336,865,
    over all time since 2024-09-04, has bought 108000 shares for $1.18M, and sold 27135 shares for $474,510.

Biography of Cox John

No biography is available at this moment.

Statistics of Insider Transactions Last Year

Amount of Insider Buys and Sells by Stocks

Buys
 $000
Sells
 $336,8655100

Comparison of Insiders on Amount of Buys and Sells

2026-08-13SaleDyne Therapeutics, Inc.
DYN
CEO & President
4,986
0.0031%
$26.28$131,032-34.09%
2026-06-16SaleDyne Therapeutics, Inc.
DYN
CEO & President
2,683
0.0016%
$18.33$49,179+17.65%
2026-05-13SaleDyne Therapeutics, Inc.
DYN
CEO & President
3,311
0.002%
$18.36$60,790+1.3%
2026-03-05SaleDyne Therapeutics, Inc.
DYN
CEO & President
2,732
0.0016%
$14.90$40,707+21.15%
2025-12-05SaleDyne Therapeutics, Inc.
DYN
CEO & President
2,662
0.0019%
$20.72$55,157-10.11%
2025-09-05SaleDyne Therapeutics, Inc.
DYN
CEO & President
2,640
0.0018%
$13.41$35,402+29.82%
2025-07-14PurchaseDyne Therapeutics, Inc.
DYN
CEO & President
100,000
0.0722%
$9.11$911,000+100.34%
2025-06-05SaleDyne Therapeutics, Inc.
DYN
CEO & President
4,060
0.0034%
$13.35$54,201+22.37%
2025-03-05SaleDyne Therapeutics, Inc.
DYN
CEO & President
4,061
0.0035%
$11.83$48,042+8.7%
2024-09-04PurchaseDyne Therapeutics, Inc.
DYN
CEO & President
8,000
0.0085%
$33.04$264,304-59.72%
2020-03-24SaleRepligen Corporation
RGEN
director
1,858
0.0036%
$96.72$179,706+60.76%
2020-03-18SaleRepligen Corporation
RGEN
director
26,736
0.0507%
$95.27$2.55M+56.42%
2020-03-04SaleRepligen Corporation
RGEN
director
10,000
0.019%
$93.39$933,900+57.14%
2020-02-24SaleRepligen Corporation
RGEN
director
4,455
0.0086%
$92.81$413,455+58.72%
2015-03-25SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
24,020
0.0106%
$449.06$10.79M-30.68%
2011-11-01SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
4,350
0.0015%
$93.62$407,247+14.93%
2011-04-21SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
4,350
0.0013%
$72.87$316,985+8.23%
2011-04-13SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
36,234
0.0148%
$80.00$2.9M+32.24%
2011-04-11SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
6,900
0.0017%
$47.92$330,648+35.83%
2011-03-31SaleBiogen Inc.
BIIB
EVP Pharmaceutical Oper & Tech
2,840
0.0007%
$43.50$123,540+42.25%
Total: 25
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