DYN Insider Trading

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Insider Trading History
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About

Insider Ownership Percentage: 14.14%

Insider Buying (Last 12 Months): $911,000.00

Insider Selling (Last 12 Months): $219,708.82

Dyne Therapeutics Insider Trading History Chart

Dyne Therapeutics Share Price & Price History

^$20.65

▲ +0.56 (2.79%)

As of 12/4/2025 05:00 PM ET

Days: 30 | 90 | 365

Dyne Therapeutics Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/5/2025	John Cox	CEO	Sell	2,640	$13.41	$35,402.40	199,539
7/14/2025	John Cox	CEO	Buy	100,000	$9.11	$911,000.00	242,179
3/13/2025	Johanna Friedl-Naderer	Insider	Sell	143	$12.12	$1,733.16	96,057
3/11/2025	Oxana Beskrovnaya	Insider	Sell	2,153	$11.38	$24,501.14	195,840
3/11/2025	Richard William Scalzo	SVP	Sell	1,343	$11.38	$15,283.34	122,330
2/18/2025	Oxana Beskrovnaya	Insider	Sell	2,598	$13.95	$36,242.10	199,087
12/11/2024	Oxana Beskrovnaya	Insider	Sell	2,334	$28.12	$65,632.08	201,685
12/11/2024	Richard William Scalzo	SVP	Sell	1,455	$28.12	$40,914.60	127,078
11/18/2024	Carlo Incerti	Director	Sell	16,500	$28.73	$474,045.00
11/14/2024	Jason P Rhodes	Director	Sell	782	$33.10	$25,884.20	15,962
10/16/2024	Dirk Kersten	Director	Sell	23,671	$35.35	$836,769.85	99,652
9/25/2024	Dirk Kersten	Director	Sell	2,357	$35.06	$82,636.42	190,939
9/23/2024	Dirk Kersten	Director	Sell	40,831	$35.32	$1,442,150.92	193,296
9/20/2024	Dirk Kersten	Director	Sell	79,411	$36.45	$2,894,530.95	234,127
9/18/2024	Oxana Beskrovnaya	Insider	Sell	2,339	$34.55	$80,812.45	140,375
9/18/2024	Richard William Scalzo	SVP	Sell	1,390	$34.55	$48,024.50	98,568
9/18/2024	Susanna High	COO	Sell	8,976	$34.41	$308,864.16	131,636
9/4/2024	John Cox	CEO	Buy	32,000	$33.04	$1,057,280.00	8,000
6/24/2024	Susanna High	COO	Sell	10,163	$35.33	$359,058.79	148,792
6/21/2024	Susanna High	COO	Sell	29,787	$35.01	$1,042,842.87	148,792
6/12/2024	Susanna High	COO	Sell	40,000	$33.36	$1,334,400.00	148,792
6/11/2024	Oxana Beskrovnaya	Insider	Sell	2,136	$31.34	$66,942.24	147,511
6/10/2024	Richard William Scalzo	SVP	Sell	1,590	$30.23	$48,065.70	115,105
6/10/2024	Susanna High	COO	Sell	80,000	$30.24	$2,419,200.00	154,062
5/20/2024	Oxana Beskrovnaya	Insider	Sell	30,426	$32.96	$1,002,840.96	149,647
5/16/2024	Oxana Beskrovnaya	Insider	Sell	2,705	$28.27	$76,470.35	149,647
5/16/2024	Richard William Scalzo	SVP	Sell	2,588	$28.27	$73,162.76	116,695
5/16/2024	Susanna High	COO	Sell	2,738	$28.27	$77,403.26	154,062
3/11/2024	Joshua T Brumm	CEO	Sell	66,387	$25.67	$1,704,154.29	537,998
3/11/2024	Richard William Scalzo	SVP	Sell	2,672	$25.28	$67,548.16	119,283
3/11/2024	Susanna High	COO	Sell	2,292	$25.70	$58,904.40	156,800
3/11/2024	Wildon Farwell	Insider	Sell	1,585	$25.70	$40,734.50	151,590
3/7/2024	Joshua T Brumm	CEO	Sell	9,086	$25.85	$234,873.10	554,385
3/7/2024	Oxana Beskrovnaya	Insider	Sell	2,373	$25.85	$61,342.05	154,433
3/7/2024	Richard William Scalzo	SVP	Sell	2,273	$25.85	$58,757.05	121,955
3/7/2024	Susanna High	COO	Sell	1,591	$25.85	$41,127.35	186,291
2/29/2024	Jonathan Mcneill	Insider	Sell	4,268	$27.50	$117,370.00	143,618
2/29/2024	Joshua T Brumm	CEO	Sell	5,520	$27.50	$151,800.00	563,471
2/29/2024	Richard William Scalzo	SVP	Sell	3,429	$27.50	$94,297.50	124,228
2/28/2024	Jason P Rhodes	Director	Sell	190,920	$24.84	$4,742,452.80	864,487
2/28/2024	Venture Fund Xi L.P. Atlas	Major Shareholder	Sell	154,674	$24.84	$3,842,102.16	5,698,091
2/26/2024	Jason P Rhodes	Director	Sell	248,219	$23.72	$5,887,754.68	903,527
2/26/2024	Venture Fund Xi L.P. Atlas	Major Shareholder	Sell	201,095	$23.72	$4,769,973.40	6,151,467
2/23/2024	Venture Fund Xi L.P. Atlas	Major Shareholder	Sell	159,542	$22.70	$3,621,603.40	6,352,562
2/22/2024	Jason P Rhodes	Director	Sell	119,360	$22.66	$2,704,697.60	6,512,104
2/21/2024	Venture Fund Xi L.P. Atlas	Major Shareholder	Sell	184,501	$22.57	$4,164,187.57	6,631,464
2/20/2024	Jason P Rhodes	Director	Sell	169,539	$22.72	$3,851,926.08	6,815,965
2/16/2024	Venture Fund Xi L.P. Atlas	Major Shareholder	Sell	162,707	$23.14	$3,765,039.98	6,985,504
2/15/2024	Jason P Rhodes	Director	Sell	177,906	$23.89	$4,250,174.34	7,148,211
2/12/2024	Wildon Farwell	Insider	Sell	5,493	$25.07	$137,709.51	163,503
1/26/2024	Richard William Scalzo	SVP	Sell	13,000	$24.34	$316,420.00	124,228
1/26/2024	Wildon Farwell	Insider	Sell	100	$25.00	$2,500.00	168,996
1/9/2024	Dirk Kersten	Director	Buy	1,714,285	$17.50	$29,999,987.50	6,416,793
1/4/2024	Joshua T Brumm	CEO	Sell	218,536	$18.51	$4,045,101.36	584,971
1/3/2024	Oxana Beskrovnaya	Insider	Sell	45,326	$18.98	$860,287.48	176,585
1/3/2024	Richard William Scalzo	SVP	Sell	13,000	$18.81	$244,530.00	124,228
12/14/2023	Richard William Scalzo	Insider	Sell	2,376	$12.02	$28,559.52	124,228
12/11/2023	Richard William Scalzo	Insider	Sell	1,380	$10.72	$14,793.60	126,604
12/11/2023	Susanna High	COO	Sell	1,616	$10.72	$17,323.52	187,882
12/6/2023	Richard William Scalzo	Insider	Sell	1,872	$12.01	$22,482.72	127,984
12/4/2023	Richard William Scalzo	Insider	Sell	681	$12.01	$8,178.81	129,856
11/2/2023	Susanna High	COO	Sell	9,939	$7.40	$73,548.60	94,605
9/18/2023	Richard William Scalzo	Insider	Sell	1,290	$9.41	$12,138.90	40,795
9/18/2023	Susanna High	COO	Sell	2,672	$9.41	$25,143.52	104,544
9/12/2023	Susanna High	COO	Sell	1,635	$10.41	$17,020.35	107,216
9/12/2023	Wildon Farwell	Insider	Sell	1,707	$10.41	$17,769.87	89,250
6/15/2023	Richard William Scalzo	Insider	Sell	10,000	$12.03	$120,300.00	43,482
6/13/2023	Susanna High	COO	Sell	1,625	$12.43	$20,198.75	108,851
6/12/2023	Joshua T Brumm	Insider	Sell	187,748	$12.61	$2,367,502.28	253,383
6/9/2023	Joshua T Brumm	Insider	Sell	76,582	$13.34	$1,021,603.88	269,771
3/14/2023	Richard William Scalzo	Insider	Sell	1,311	$13.33	$17,475.63	54,872
3/14/2023	Susanna High	COO	Sell	1,559	$13.33	$20,781.47	110,476
1/18/2023	Jonathan Mcneill	Insider	Sell	10,000	$14.03	$140,300.00	67,600
1/9/2023	Jonathan Mcneill	Insider	Sell	30,150	$11.57	$348,835.50	67,600
12/12/2022	Jason P Rhodes	Director	Buy	934,581	$10.70	$10,000,016.70	934,581
12/12/2022	Richard William Scalzo	Insider	Sell	312	$10.87	$3,391.44	56,183
12/12/2022	Susanna High	COO	Sell	751	$10.87	$8,163.37	112,035

SEC Filings (Institutional Ownership Changes) for Dyne Therapeutics (NASDAQ:DYN)

96.68% of Dyne Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Dyne Therapeutics Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/21/2025	CIBC Bancorp USA Inc.	11,641	$0.15M	0.0%	N/A	0.008%
11/17/2025	Jacobs Levy Equity Management Inc.	729,606	$9.23M	0.0%	N/A	0.511%
11/17/2025	Armistice Capital LLC	3,064,000	$38.76M	0.6%	+19.7%	2.145%
11/17/2025	PDT Partners LLC	201,240	$2.55M	0.2%	-47.8%	0.141%
11/17/2025	TCG Crossover Management LLC	4,615,144	$58.38M	2.9%	+22.5%	3.231%
11/17/2025	Dark Forest Capital Management LP	68,888	$0.87M	0.0%	+223.7%	0.048%
11/17/2025	University of Wisconsin Foundation	517,750	$6.55M	5.5%	N/A	0.363%
11/17/2025	Vivo Capital LLC	2,614,960	$33.08M	2.7%	+134.5%	1.831%
11/17/2025	Voleon Capital Management LP	111,838	$1.42M	0.0%	+150.1%	0.078%
11/17/2025	Voloridge Investment Management LLC	710,044	$8.98M	0.0%	-10.2%	0.497%
11/17/2025	Wasatch Advisors LP	523,924	$6.63M	0.0%	-6.1%	0.367%
11/17/2025	Vestal Point Capital LP	2,775,000	$35.10M	1.6%	+281.4%	1.943%
11/17/2025	Polar Capital Holdings Plc	529,388	$6.70M	0.0%	N/A	0.371%
11/17/2025	Qube Research & Technologies Ltd	829,769	$10.50M	0.0%	+4.8%	0.581%
11/17/2025	Public Employees Retirement System of Ohio	33,100	$0.42M	0.0%	N/A	0.023%
11/17/2025	Palo Alto Investors LP	1,262,674	$15.97M	3.0%	+376.5%	0.884%
11/17/2025	Paradigm Biocapital Advisors LP	1,898,950	$24.02M	0.7%	N/A	1.330%
11/17/2025	Nantahala Capital Management LLC	702,884	$8.89M	0.3%	-5.7%	0.492%
11/17/2025	Millennium Management LLC	413,940	$5.24M	0.0%	+190.0%	0.290%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	61,635	$0.78M	0.0%	+8.5%	0.043%
11/17/2025	Lighthouse Investment Partners LLC	20,000	$0.25M	0.0%	N/A	0.014%
11/17/2025	Jain Global LLC	644,082	$8.15M	0.0%	+8.0%	0.451%
11/17/2025	Brevan Howard Capital Management LP	59,302	$0.75M	0.0%	+292.1%	0.042%
11/17/2025	Bank of America Corp DE	761,112	$9.63M	0.0%	+48.1%	0.533%
11/17/2025	Boothbay Fund Management LLC	29,084	$0.37M	0.0%	-75.8%	0.020%
11/17/2025	Braidwell LP	2,730,481	$34.54M	1.0%	-16.6%	1.912%
11/17/2025	ArrowMark Colorado Holdings LLC	785,915	$9.94M	0.2%	+2.0%	0.550%
11/17/2025	Algert Global LLC	515,132	$6.52M	0.1%	-7.8%	0.361%
11/17/2025	Alliancebernstein L.P.	106,680	$1.35M	0.0%	+8.6%	0.075%
11/17/2025	Ameriprise Financial Inc.	422,656	$5.35M	0.0%	+48.3%	0.296%
11/14/2025	Creative Planning	15,527	$0.20M	0.0%	+6.8%	0.011%
11/14/2025	Schonfeld Strategic Advisors LLC	415,927	$5.26M	0.0%	+24.7%	0.291%
11/14/2025	SummitTX Capital L.P.	132,900	$1.68M	0.1%	+11.7%	0.093%
11/14/2025	Raymond James Financial Inc.	76,912	$0.97M	0.0%	+49.4%	0.054%
11/14/2025	Deep Track Capital LP	2,000,000	$25.30M	0.7%	N/A	1.400%
11/14/2025	Burkehill Global Management LP	120,000	$1.52M	0.1%	N/A	0.084%
11/14/2025	Orbimed Advisors LLC	2,314,184	$29.27M	0.7%	+124.4%	1.620%
11/14/2025	California State Teachers Retirement System	89,160	$1.13M	0.0%	-12.3%	0.062%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	33,314	$0.42M	0.0%	+73.1%	0.023%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	229,430	$2.90M	0.0%	-21.9%	0.161%
11/14/2025	Squarepoint Ops LLC	47,592	$0.60M	0.0%	-73.8%	0.033%
11/14/2025	Integral Health Asset Management LLC	800,000	$10.12M	0.7%	N/A	0.560%
11/14/2025	Comerica Bank	86,496	$1.09M	0.0%	+14.8%	0.061%
11/13/2025	Marshall Wace LLP	3,013,377	$38.12M	0.0%	+572.9%	2.110%
11/13/2025	UBS Group AG	349,388	$4.42M	0.0%	+186.9%	0.245%
11/13/2025	BNP Paribas Financial Markets	136,385	$1.73M	0.0%	-50.8%	0.095%
11/13/2025	Franklin Resources Inc.	1,398,530	$17.69M	0.0%	+0.6%	0.979%
11/13/2025	Legal & General Group Plc	107,975	$1.37M	0.0%	+37.5%	0.076%
11/13/2025	Swiss National Bank	178,300	$2.26M	0.0%	+27.0%	0.125%
11/13/2025	WINTON GROUP Ltd	78,072	$0.99M	0.0%	N/A	0.055%
11/13/2025	Russell Investments Group Ltd.	113,932	$1.44M	0.0%	+159.4%	0.080%
11/13/2025	Schroder Investment Management Group	275,596	$3.41M	0.0%	+34.0%	0.193%
11/12/2025	Victory Capital Management Inc.	50,102	$0.63M	0.0%	-24.6%	0.035%
11/12/2025	Rafferty Asset Management LLC	213,211	$2.70M	0.0%	+93.4%	0.149%
11/12/2025	Quantbot Technologies LP	17,513	$0.22M	0.0%	N/A	0.012%
11/12/2025	Intech Investment Management LLC	53,050	$0.67M	0.0%	-19.7%	0.037%
11/10/2025	TD Asset Management Inc	20,382	$0.26M	0.0%	N/A	0.014%
11/10/2025	China Universal Asset Management Co. Ltd.	24,937	$0.32M	0.0%	+9.2%	0.018%
11/7/2025	GSA Capital Partners LLP	35,190	$0.45M	0.0%	+152.6%	0.025%
11/7/2025	Vanguard Group Inc.	9,760,414	$123.47M	0.0%	+27.6%	6.861%
11/7/2025	JPMorgan Chase & Co.	3,365,245	$42.57M	0.0%	+9.0%	2.365%
11/7/2025	Aberdeen Group plc	556,733	$7.04M	0.0%	+15.0%	0.391%
11/6/2025	Rhumbline Advisers	167,820	$2.12M	0.0%	+8.6%	0.118%
11/6/2025	Profund Advisors LLC	45,980	$0.58M	0.0%	+94.5%	0.032%
11/6/2025	Oppenheimer & Co. Inc.	11,364	$0.14M	0.0%	-67.2%	0.008%
11/6/2025	Candriam S.C.A.	833,922	$10.55M	0.1%	+59.1%	0.586%
11/6/2025	Aegis Wealth Management LLC	49,908	$0.63M	0.3%	+50.2%	0.035%
11/5/2025	Optimize Financial Inc	29,874	$0.38M	0.2%	+103.8%	0.021%
11/4/2025	Chung Wu Investment Group LLC	2,400	$30K	0.0%	N/A	0.002%
11/4/2025	Thrivent Financial for Lutherans	14,365	$0.18M	0.0%	-67.4%	0.010%
11/3/2025	AlphaQuest LLC	14,652	$0.19M	0.0%	-20.0%	0.010%
11/3/2025	Arizona State Retirement System	27,204	$0.34M	0.0%	+26.9%	0.019%
11/3/2025	New York State Common Retirement Fund	34,673	$0.44M	0.0%	+38.8%	0.024%
11/3/2025	Mirae Asset Global Investments Co. Ltd.	5,500	$70K	0.0%	+25.3%	0.004%
10/29/2025	Arkadios Wealth Advisors	10,104	$0.13M	0.0%	N/A	0.007%
10/28/2025	Campbell & CO Investment Adviser LLC	64,517	$0.82M	0.1%	N/A	0.045%
10/27/2025	Arcadia Investment Management Corp MI	49,225	$0.62M	0.1%	-10.8%	0.035%
10/23/2025	KLP Kapitalforvaltning AS	19,800	$0.25M	0.0%	+30.3%	0.014%
10/16/2025	Darwin Wealth Management LLC	173,517	$2.20M	0.7%	+0.5%	0.122%
10/9/2025	Voya Investment Management LLC	98,701	$1.25M	0.0%	+85.6%	0.069%
8/27/2025	Squarepoint Ops LLC	181,740	$1.73M	0.0%	+334.3%	0.128%
8/26/2025	Thrivent Financial for Lutherans	44,051	$0.42M	0.0%	N/A	0.031%
8/18/2025	Caxton Associates LLP	16,599	$0.16M	0.0%	+10.9%	0.012%
8/15/2025	Tower Research Capital LLC TRC	10,495	$100K	0.0%	+275.1%	0.007%
8/15/2025	Exome Asset Management LLC	195,933	$1.87M	1.0%	-24.2%	0.138%
8/15/2025	E Fund Management Co. Ltd.	12,274	$0.12M	0.0%	-10.9%	0.009%
8/15/2025	Voleon Capital Management LP	44,723	$0.43M	0.0%	-25.1%	0.031%
8/15/2025	Wasatch Advisors LP	557,937	$5.31M	0.0%	+9.2%	0.392%
8/15/2025	Sofinnova Investments Inc.	614,865	$5.85M	0.4%	-14.2%	0.432%
8/15/2025	Rafferty Asset Management LLC	110,248	$1.05M	0.0%	-25.2%	0.077%
8/15/2025	Perceptive Advisors LLC	2,247,390	$21.40M	1.9%	-2.9%	1.580%
8/15/2025	Frazier Life Sciences Management L.P.	1,505,984	$14.34M	0.6%	+4.3%	1.059%
8/15/2025	Engineers Gate Manager LP	172,469	$1.64M	0.0%	+103.1%	0.121%
8/15/2025	BNP Paribas Financial Markets	277,259	$2.64M	0.0%	+88.1%	0.195%
8/15/2025	Boothbay Fund Management LLC	120,084	$1.14M	0.0%	-31.4%	0.084%
8/15/2025	Braidwell LP	3,273,349	$31.16M	1.1%	-9.6%	2.301%
8/15/2025	Brevan Howard Capital Management LP	15,123	$0.14M	0.0%	N/A	0.011%
8/15/2025	Balyasny Asset Management L.P.	488,498	$4.65M	0.0%	N/A	0.343%
8/15/2025	Bank of America Corp DE	513,801	$4.89M	0.0%	+90.3%	0.361%
8/15/2025	Adage Capital Partners GP L.L.C.	3,191,000	$30.38M	0.1%	N/A	2.243%

Data available starting January 2016

Dyne Therapeutics, Inc., a clinical-stage muscle disease company, operates as a biotechnology company that focuses on advancing therapeutics for genetically driven muscle diseases in the United States. It is developing a portfolio of muscle disease therapeutics, including programs in 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. Dyne Therapeutics, Inc. was incorporated in 2017 and is headquartered in Waltham, Massachusetts.

Today's Range

Now: $20.65

$19.63

$21.09

50 Day Range

MA: $18.31

$12.37

$24.29

52 Week Range

Now: $20.65

$6.36

$29.72

Volume

2,105,378 shs

Average Volume

2,408,192 shs

Market Capitalization

$2.95 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.3

Who are the company insiders with the largest holdings of Dyne Therapeutics?: Dyne Therapeutics' top insider shareholders include:
Jason P Rhodes (Director)
Venture Fund Xi LP Atlas (Major Shareholder)
Dirk Kersten (Director)
Joshua T Brumm (CEO)
John Cox (CEO)
Oxana Beskrovnaya (Insider)
Susanna Gatti High (COO)
Wildon Farwell (Insider)
Jonathan Mcneill (Insider)
Richard William Scalzo (Insider)
Richard William Scalzo (SVP)
Johanna Friedl-Naderer (Insider)
Carlo Incerti (Director)
Learn More about top insider investors at Dyne Therapeutics.
Who are the major institutional investors of Dyne Therapeutics?: Dyne Therapeutics' top institutional investors include:
Vanguard Group Inc. — 6.86%
TCG Crossover Management LLC — 3.23%
JPMorgan Chase & Co. — 2.37%
Armistice Capital LLC — 2.15%
Marshall Wace LLP — 2.11%
Vestal Point Capital LP — 1.94%
Learn More about top institutional investors of Dyne Therapeutics stock.
Which institutional investors are selling Dyne Therapeutics stock?: During the last quarter, DYN stock was sold by these institutional investors:
Braidwell LP
PDT Partners LLC
BNP Paribas Financial Markets
Squarepoint Ops LLC
Boothbay Fund Management LLC
Voloridge Investment Management LLC
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Algert Global LLC
Within the previous year, company insiders that have sold Dyne Therapeutics company stock include:
Jason P Rhodes (Director)
Venture Fund Xi LP Atlas (Major Shareholder)
Dirk Kersten (Director)
Joshua T Brumm (CEO)
Learn More investors selling Dyne Therapeutics stock.
Which institutional investors are buying Dyne Therapeutics stock?: During the last quarter, DYN stock was acquired by institutional investors including:
Marshall Wace LLP
Vanguard Group Inc.
Vestal Point Capital LP
Deep Track Capital LP
Paradigm Biocapital Advisors LP
Vivo Capital LLC
Orbimed Advisors LLC
Palo Alto Investors LP
During the last year, these company insiders have bought Dyne Therapeutics stock:
Jason P Rhodes (Director)
Venture Fund Xi LP Atlas (Major Shareholder)
Learn More investors buying Dyne Therapeutics stock.