GREAT LAKES ADVISORS, LLC

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 1078013 CHICAGO, IL

Position in REGN

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$7,905,650

+$6,490,813 QoQ

Shares Held

10,232

+458.2% QoQ

Ownership

0.010%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2023

7 quarters on record

Voting authority Sole 87.16037273173124.ToString("F0")% Shared 0.ToString("F0")% None 12.839627268268758.ToString("F0")%

Healthcare · as of Mar 31, 2026

GREAT LAKES ADVISORS, LLC holds $63,780,240 across 22 Biotechnology names. REGN ranks #3 (12.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	JAZZ	Jazz Pharmaceuticals plc	48,945	$9,253,051
2	IONS	Ionis Pharmaceuticals Inc	118,926	$8,930,152
3	REGN	Regeneron Pharmaceuticals, Inc. This page	10,232	$7,905,650
4	PTGX	Protagonist Therapeutics, Inc	71,043	$7,487,931
5	ACAD	Acadia Pharmaceuticals Inc	241,827	$5,383,068
6	IDYA	IDEAYA Biosciences, Inc.	141,048	$4,699,719
7	DNLI	Denali Therapeutics Inc.	227,110	$4,360,512
8	ROIV	Roivant Sciences Ltd.	135,498	$3,753,293

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$7,905,650	10,232	+458.2%	Shares	Defined	2026-05-12
2025-12-31	$1,414,837	1,833	+0.4%	Shares	Sole	2026-02-12
2025-09-30	$1,026,142	1,825	+28.7%	Shares	Sole	2025-11-03
2024-09-30	$1,490,658	1,418	-20.1%	Shares	Sole	2024-11-04
2024-06-30	$1,865,578	1,775	+0.9%	Shares	Sole	2024-08-06
2023-06-30	$1,263,911	1,759	-1.7%	Shares	Sole	2023-08-10
2023-03-31	$1,469,967	1,789	—	Shares	Sole	2023-05-10
No filing history on record for this holder in this stock.