Dyne Therapeutics, Inc. (DYN) Insider Trading Activity

NASDAQ$18
Market Cap
$2.91B
Sector
Healthcare
Industry
Biotechnology
Rank in Sector
152 of 893
Rank in Industry
94 of 511

DYN Insider Trading Activity

DYN Median Price and Trade Amounts History Chart

Statistics of Insider Transactions

Amount of Insider Buys and Sells

Buys
$911,000
1
5
Sells
$458,665
20
95

Related Transactions

Cox JohnCEO & President
1
$911,000
4
$192,802
$718,198
Friedl-Naderer JohannaChief Commercial Officer
0
$0
5
$20,460
$-20,460
Scalzo Richard WilliamSVP, Head of Finance & Admin.
0
$0
3
$60,839
$-60,839
Beskrovnaya OxanaChief Scientific Officer
0
$0
3
$73,685
$-73,685
Kerr DouglasChief Medical Officer
0
$0
5
$110,879
$-110,879

About Dyne Therapeutics, Inc.

Dyne Therapeutics, Inc., a muscle disease company, operates as a biotechnology company that focuses on advancing therapeutics for genetically driven muscle diseases in the United States. It develops various programs for myotonic dystrophy type 1, duchenne muscular dystrophy, and facioscapulohumeral dystrophy, as well as rare skeletal muscle, and cardiac and metabolic muscle diseases using its FORCE platform that delivers disease-modifying therapeutics. The company was incorporated in 2017 and is headquartered in Waltham, Massachusetts..

Insider Activity of Dyne Therapeutics, Inc.

Over the last 12 months, insiders at Dyne Therapeutics, Inc. have bought $911,000 and sold $458,665 worth of Dyne Therapeutics, Inc. stock.

On average, over the past 5 years, insiders at Dyne Therapeutics, Inc. have bought $12.79M and sold $47.38M worth of stock each year.

Highest buying activity among insiders over the last 12 months: Cox John (CEO & President) — $911,000.

The last purchase of 100,000 shares for transaction amount of $911,000 was made by Cox John (CEO & President) on 2025‑07‑14.

List of Insider Buy and Sell Transactions, Dyne Therapeutics, Inc.

2025-12-05SaleCox JohnCEO & President
2,662
0.0019%
$20.72
$55,157
-7.67%
2025-12-05SaleFriedl-Naderer JohannaChief Commercial Officer
144
0.0001%
$20.72
$2,984
-7.67%
2025-12-05SaleKerr DouglasChief Medical Officer
880
0.0006%
$20.72
$18,234
-7.67%
2025-09-05SaleCox JohnCEO & President
2,640
0.0018%
$13.41
$35,402
+28.31%
2025-09-05SaleFriedl-Naderer JohannaChief Commercial Officer
144
<0.0001%
$13.41
$1,931
+28.31%
2025-09-05SaleKerr DouglasChief Medical Officer
873
0.0006%
$13.41
$11,707
+28.31%
2025-09-04SaleFriedl-Naderer JohannaChief Commercial Officer
894
0.0006%
$13.27
$11,863
+37.69%
2025-09-04SaleKerr DouglasChief Medical Officer
3,552
0.0025%
$13.27
$47,135
+37.69%
2025-07-14PurchaseCox JohnCEO & President
100,000
0.0722%
$9.11
$911,000
+83.67%
2025-06-05SaleCox JohnCEO & President
4,060
0.0034%
$13.35
$54,201
+0.43%
2025-06-05SaleFriedl-Naderer JohannaChief Commercial Officer
146
0.0001%
$13.35
$1,949
+0.43%
2025-06-05SaleKerr DouglasChief Medical Officer
1,342
0.0011%
$13.35
$17,916
+0.43%
2025-03-13SaleFriedl-Naderer JohannaChief Commercial Officer
143
0.0001%
$12.12
$1,733
+8.25%
2025-03-11SaleBeskrovnaya OxanaChief Scientific Officer
2,153
0.0018%
$11.38
$24,501
+5.57%
2025-03-11SaleScalzo Richard WilliamSVP, Head of Finance & Admin.
1,343
0.0011%
$11.38
$15,283
+5.57%
2025-03-05SaleBeskrovnaya OxanaChief Scientific Officer
1,094
0.0009%
$11.83
$12,942
+3.86%
2025-03-05SaleCox JohnCEO & President
4,061
0.0035%
$11.83
$48,042
+3.86%
2025-03-05SaleScalzo Richard WilliamSVP, Head of Finance & Admin.
917
0.0008%
$11.83
$10,848
+3.86%
2025-03-05SaleKerr DouglasChief Medical Officer
1,343
0.0011%
$11.83
$15,888
+3.86%
2025-02-18SaleBeskrovnaya OxanaChief Scientific Officer
2,598
0.0026%
$13.95
$36,242
-7.26%
Total: 387
*Gray background shows transactions not older than one year

Insider Historical Profitability

<0.0001%
Cox JohnCEO & President
196877
0.1217%
$3.54M24
<0.0001%
Beskrovnaya OxanaChief Scientific Officer
195840
0.121%
$3.53M024
Scalzo Richard WilliamSVP, Head of Finance & Admin.
122330
0.0756%
$2.2M032
Friedl-Naderer JohannaChief Commercial Officer
94729
0.0585%
$1.71M05
Kerr DouglasChief Medical Officer
87510
0.0541%
$1.58M05
Litespeed Management, L.L.C.10 percent owner
28507291
17.6183%
$513.13M190
ECP ControlCo, LLC10 percent owner
14291152
8.8323%
$257.24M01
FRANKLIN RESOURCES INC10 percent owner
8927023
5.5171%
$160.69M0110
Kersten Dirkdirector
5400545
3.3377%
$97.21M342
+56.53%
VV Manager II, LLC10 percent owner
2880125
1.78%
$51.84M10
<0.0001%
RA CAPITAL MANAGEMENT, L.P.10 percent owner
2805045
1.7336%
$50.49M10
<0.0001%
Logos Global Management LP10 percent owner
1504392
0.9298%
$27.08M10
<0.0001%
HURWITZ EDWARD
1326313
0.8197%
$23.87M20
Atlas Venture Opportunity Fund II, L.P.director
934581
0.5776%
$16.82M10
<0.0001%
Atlas Venture Fund XI, L.P.10 percent owner
864487
0.5343%
$15.56M09
Atlas Venture Opportunity Fund I, L.P.10 percent owner
847388
0.5237%
$15.25M01
FLEXON ROBERT CPresident and CEO
720506
0.4453%
$12.97M80
Brumm Joshua TCEO & President
537998
0.3325%
$9.68M019
Lubner David Charlesdirector
177872
0.1099%
$3.2M10
Farwell WildonChief Medical Officer
143222
0.0885%
$2.58M016
McNeill JonathanChief Business Officer
132106
0.0816%
$2.38M025
HIGH SUSANNA GATTIChief Operating Officer
131636
0.0814%
$2.37M021
Freeland ClintExec. VP and CFO
71894
0.0444%
$1.29M30
NICHOLS HOLLIEVP and CFO
64549
0.0399%
$1.16M01
Callaway Catherine B.Exec VP and General Counsel
63042
0.039%
$1.13M10
Wood Patrick IIIdirector
45023
0.0278%
$810,414.0030
Stehman-Breen Catherinedirector
35574
0.022%
$640,332.0010
Klein Lawrence Ottodirector
35574
0.022%
$640,332.0010
HAMMICK PATRICIA Adirector
25000
0.0155%
$450,000.0030
Rhodes Jason Pdirector
15962
0.0099%
$287,316.00111
<0.0001%
Stein Jeffrey Scottdirector
15489
0.0096%
$278,802.0010
GRIJALVA VICTORdirector
15000
0.0093%
$270,000.0010
TRUBECK WILLIAM Ldirector
11000
0.0068%
$198,000.0020
ELWARD THOMAS Wdirector
5000
0.0031%
$90,000.0010
Kuersteiner Richard Leedirector
2500
0.0015%
$45,000.0010
Ackermann Hilary E.director
1000
0.0006%
$18,000.0010
Incerti Carlodirector
0
0%
$001
*Gray background shows insiders who have made transactions during last year

Historical Insider Profitability vs. Competitors

$11,588,217
69
42.07%
$2.9B
$11,583,737
45
49.75%
$2.63B
$148,770,544
34
80.63%
$3.33B
$5,066,938
27
26.38%
$3.23B
$61,703,557
26
40.25%
$3.09B
$27,105,902
21
-16.06%
$2.83B
$137,061,250
16
23.01%
$3.21B
$174,105,409
15
10.88%
$2.75B
$73,814,940
15
-4.77%
$2.67B
$92,580,864
14
-1.28%
$3.03B
$1,248,715
10
5.66%
$3.34B
$45,445,266
9
-24.96%
$3.05B
$130,038,539
8
26.82%
$2.46B
$32,575,266
8
37.03%
$2.9B
Dyne Therapeutics, Inc.
(DYN)
$91,589,325
7
-6.97%
$2.91B
$24,000,085
4
33.26%
$2.88B
$142,493,653
3
4.30%
$3.09B
$5,000,000
1
-22.84%
$2.83B
$9,900,000
1
-7.19%
$3.16B

DYN Institutional Investors: Active Positions

Increased Positions149+95.51%46M+35.28%
Decreased Positions68-43.59%19M-14.48%
New Positions38New9MNew
Sold Out Positions28Sold Out12MSold Out
Total Postitions237+51.92%157M+20.8%

DYN Ownership Change vs Market

Institutional Investor Ownership

Top Shareholders
Top Buyers
Top Sellers
New Shareholders
Sold-Out Shareholders
Active Shareholders
Janus Henderson Group Plc$272,792.009.1%14.75M+5M+56.24%2025-09-30
Vanguard Group Inc$180,568.006.03%9.76M+2M+27.57%2025-09-30
Blackrock, Inc.$178,246.005.95%9.63M+2M+19.27%2025-09-30
Atlas Venture Life Science Advisors, Llc$168,914.005.64%9.13M00%2025-09-30
Fcpm Iii Services B.V.$101,063.003.37%5.46M00%2025-09-30
Fmr Llc$99,935.003.34%5.4M+108,547+2.05%2025-09-30
State Street Corp$97,475.003.25%5.27M+2M+57.02%2025-09-30
Siren, L.L.C.$87,490.002.92%4.73M-107,263-2.22%2025-09-30
Tcg Crossover Management, Llc$85,380.002.85%4.62M+848,484+22.53%2025-09-30
Adage Capital Partners Gp, L.L.C.$65,749.002.19%3.55M+363,000+11.38%2025-09-30

Financial Ratios

Summary
Comparison with Competitors

Price to Earnings

Price/Earnings to Growth

Price to Sales

Price to Book

Price/Free Cash Flow

Analyst Recommendations

Analyst Price Targets

Prismo does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.
Information is provided 'as-is' and solely for informational purposes and is not advice. Prismo does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.