SG Americas Securities, LLC

Broker-Dealer

Position in DYN — Dyne Therapeutics, Inc.

CIK 1313360 NEW YORK, NY

Position in DYN

as of Mar 31, 2026 · filed Apr 16, 2026 Compact

Position Value

$2,041,909

-$3,149,002 QoQ

Shares Held

112,626

-57.6% QoQ

Ownership

0.079%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2021

13 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

SG Americas Securities, LLC holds $696,227,386 across 174 Biotechnology names. DYN ranks #35 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	REGN	Regeneron Pharmaceuticals, Inc.	158,278	$122,291,913
2	PTCT	Ptc Therapeutics, Inc.	879,701	$59,934,029
3	HRMY	Harmony Biosciences Holdings, Inc.	2,018,174	$56,529,053
4	JAZZ	Jazz Pharmaceuticals plc	199,705	$37,754,230
5	URGN	UroGen Pharma Ltd.	1,657,846	$29,808,071
6	ASND	Ascendis Pharma A/S	120,790	$27,628,296
7	INCY	Incyte Corp	285,152	$26,838,506
8	VRTX	Vertex Pharmaceuticals Inc / Ma	56,982	$25,444,742

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,041,909	112,626	-57.6%	Shares	Sole	2026-04-16
2025-12-31	$5,190,911	265,384	+1978.5%	Shares	Sole	2026-01-09
2025-06-30	$121,551	12,768	-97.0%	Shares	Sole	2025-08-08
2025-03-31	$4,498,333	430,051	+2159.1%	Shares	Sole	2025-04-15
2024-12-31	$448,488	19,036	+3.8%	Shares	Sole	2025-01-17
2024-09-30	$658,916	18,344	+198.9%	Shares	Sole	2024-10-03
2024-06-30	$216,574	6,137	-52.6%	Shares	Sole	2024-07-12
2023-12-31	$172,075	12,938	+15.7%	Shares	Sole	2024-01-12
2023-03-31	$128,828	11,183	+14.1%	Shares	Sole	2023-04-28
2022-12-31	$113,616	9,803	-4.1%	Shares	Sole	2023-02-02
2022-09-30	$129,806	10,221	-4.9%	Shares	Sole	2022-10-31
2022-06-30	$73,859	10,751	-84.9%	Shares	Sole	2022-07-29
2021-09-30	$1,158,188	71,317	—	Shares	Sole	2021-11-01
No filing history on record for this holder in this stock.