Richard William Scalzo Dyne Therapeutics, Inc. (DYN) insider trading activity

Richard William Scalzo is SVP, Head of Finance & Admin. of Dyne Therapeutics, Inc.. Currently has a direct ownership of 127,078 shares of DYN, which is worth approximately $3.05 Million. The most recent transaction as insider was on Dec 11, 2024, when has been sold 1,455 shares (Common Stock) at a price of $28.12 per share, resulting in proceeds of $40,914. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 127K

28.92% 3M change

2.29% 12M change

Total Value Held $3.05 Million

Richard William Scalzo Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 11 2024	SELL Open market or private sale	$40,914 $28.12 p/Share	1,455 Reduced 1.13%	127,078 Common Stock
Dec 04 2024	BUY Grant, award, or other acquisition	-	32,700 Added 20.28%	128,533 Common Stock
Nov 18 2024	SELL Open market or private sale	$77,127 $28.2 p/Share	2,735 Reduced 2.77%	95,833 Common Stock
Sep 18 2024	SELL Open market or private sale	$48,024 $34.55 p/Share	1,390 Reduced 1.39%	98,568 Common Stock
Sep 11 2024	SELL Open market or private sale	$46,814 $31.89 p/Share	1,468 Reduced 1.45%	99,958 Common Stock
Sep 06 2024	SELL Open market or private sale	$4,083,536 $32.39 p/Share	126,074 Reduced 55.42%	101,426 Common Stock
Sep 06 2024	BUY Exercise of conversion of derivative security	$1,220,689 $10.48 p/Share	116,478 Added 33.86%	227,500 Common Stock
Aug 19 2024	SELL Open market or private sale	$125,216 $45.5 p/Share	2,752 Reduced 2.42%	111,022 Common Stock
Jun 11 2024	SELL Open market or private sale	$41,713 $31.34 p/Share	1,331 Reduced 1.16%	113,774 Common Stock
Jun 10 2024	SELL Open market or private sale	$48,065 $30.23 p/Share	1,590 Reduced 1.36%	115,105 Common Stock
May 16 2024	SELL Open market or private sale	$73,499 $28.4 p/Share	2,588 Reduced 2.17%	116,695 Common Stock
Mar 11 2024	SELL Open market or private sale	$67,735 $25.35 p/Share	2,672 Reduced 2.19%	119,283 Common Stock
Mar 08 2024	SELL Open market or private sale	$2,281,365 $26.45 p/Share	86,252 Reduced 41.43%	121,955 Common Stock
Mar 08 2024	BUY Exercise of conversion of derivative security	$477,836 $5.54 p/Share	86,252 Added 29.29%	208,207 Common Stock
Mar 07 2024	SELL Open market or private sale	$58,757 $25.85 p/Share	2,273 Reduced 1.83%	121,955 Common Stock
Mar 01 2024	SELL Open market or private sale	$264,711 $28.43 p/Share	9,311 Reduced 6.97%	124,228 Common Stock
Mar 01 2024	BUY Exercise of conversion of derivative security	$9,590 $1.03 p/Share	9,311 Added 6.52%	133,539 Common Stock
Feb 29 2024	SELL Open market or private sale	$94,297 $27.5 p/Share	3,429 Reduced 2.69%	124,228 Common Stock
Feb 29 2024	BUY Exercise of conversion of derivative security	$3,531 $1.03 p/Share	3,429 Added 2.62%	127,657 Common Stock
Jan 26 2024	SELL Open market or private sale	$316,420 $24.34 p/Share	13,000 Reduced 9.47%	124,228 Common Stock
Jan 26 2024	BUY Exercise of conversion of derivative security	$13,390 $1.03 p/Share	13,000 Added 8.65%	137,228 Common Stock
Jan 03 2024	SELL Open market or private sale	$244,529 $18.81 p/Share	13,000 Reduced 9.47%	124,228 Common Stock
Jan 03 2024	BUY Exercise of conversion of derivative security	$13,390 $1.03 p/Share	13,000 Added 8.65%	137,228 Common Stock
Dec 14 2023	SELL Open market or private sale	$28,559 $12.02 p/Share	2,376 Reduced 1.88%	124,228 Common Stock
Dec 11 2023	SELL Open market or private sale	$14,793 $10.72 p/Share	1,380 Reduced 1.08%	126,604 Common Stock

RWS

Richard William Scalzo

SVP, Head of Finance & Admin.

Waltham, MA

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