Dyne Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:DYN Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
06 Sep 24	SellUS$309,248	Richard Scalzo	Individual	9,596	US$32.63
04 Sep 24	BuyUS$1,057,216	John Cox	Individual	32,000	US$33.09
11 Mar 24	SellUS$223,465	Joshua Brumm	Individual	8,618	US$25.93
08 Mar 24	SellUS$725,344	Susanna High	Individual	27,199	US$27.41
01 Mar 24	SellUS$513,825	Atlas Venture L.P.	Company	17,099	US$30.05
28 Feb 24	SellUS$2,166,797	Atlas Venture L.P.	Company	89,407	US$25.25
23 Feb 24	SellUS$848,662	Atlas Venture L.P.	Company	37,386	US$22.70
09 Jan 24	BuyUS$29,999,988	Forbion Capital Partners B.V.	Company	1,714,285	US$17.50

Insider Buying: DYN insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 64.5%.

Top 25 shareholders own 86.54% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
7.99%	Atlas Venture L.P.	8,020,136	US$261.3m	0%	24.87%
7.36%	BlackRock, Inc.	7,386,988	US$240.7m	37.1%	no data
6.36%	RTW Investments, LP	6,387,138	US$208.1m	107%	3.1%
6.03%	RA Capital Management, L.P.	6,049,204	US$197.1m	22.1%	2.22%
5.9%	Forbion Capital Partners B.V.	5,924,128	US$193.0m	-24.5%	32.03%
5.3%	FMR LLC	5,318,962	US$173.3m	65.3%	0.01%
4.7%	The Vanguard Group, Inc.	4,718,054	US$153.7m	37.1%	no data
4.61%	Janus Henderson Group plc	4,623,824	US$150.6m	72.8%	0.06%
4.3%	Citadel Advisors LLC	4,316,006	US$140.6m	1.45%	0.14%
3.98%	Deep Track Capital, LP	4,000,000	US$130.3m	-12.2%	3.52%
3.31%	Adage Capital Management, L.P.	3,328,000	US$108.4m	43.1%	0.19%
3.19%	State Street Global Advisors, Inc.	3,200,969	US$104.3m	-23.7%	no data
2.64%	TCG Crossover Management, LLC	2,650,150	US$86.3m	0%	7.5%
2.36%	T. Rowe Price Group, Inc.	2,366,069	US$77.1m	109%	0.01%
2.17%	VR Adviser, LLC	2,173,913	US$70.8m	0%	2.9%
2.07%	Holocene Advisors, LP	2,076,352	US$67.6m	0%	0.27%
1.98%	Goldman Sachs Group, Investment Banking and Securities Investments	1,989,206	US$64.8m	27.8%	0.03%
1.77%	Geode Capital Management, LLC	1,774,653	US$57.8m	35.7%	no data
1.68%	Franklin Resources, Inc.	1,685,427	US$54.9m	-3.11%	0.02%
1.63%	Vivo Capital, LLC	1,635,136	US$53.3m	0%	4.04%
1.62%	Sofinnova Investment, Inc.	1,625,703	US$53.0m	-16.1%	3.15%
1.56%	MPM BioImpact LLC	1,561,496	US$50.9m	-54.8%	28.86%
1.51%	Artal Group S.A.	1,516,960	US$49.4m	-0.07%	1.17%
1.32%	Jennison Associates LLC	1,327,222	US$43.2m	9.91%	0.03%
1.23%	Woodline Partners LP	1,233,908	US$40.2m	76.8%	0.37%