FLAGSHIP HARBOR ADVISORS, LLC

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 1691766 BOSTON, MA

Position in REGN

as of Mar 31, 2026 · filed Apr 28, 2026 Compact

Position Value

$574,844

-$96,682 QoQ

Shares Held

744

-14.5% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

14 quarters on record

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

Healthcare · as of Mar 31, 2026

FLAGSHIP HARBOR ADVISORS, LLC holds $1,374,943 across 4 Biotechnology names. REGN ranks #2 (41.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	1,644	$734,111
2	REGN	Regeneron Pharmaceuticals, Inc. This page	744	$574,844
3	GERN	Geron Corp	43,885	$65,388
4	ITRMF	Iterum Therapeutics plc	20,000	$600

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$574,844	744	-14.5%	Shares	Sole	2026-04-28
2025-12-31	$671,526	870	-2.8%	Shares	Sole	2026-01-21
2025-09-30	$503,231	895	+0.6%	Shares	Sole	2025-11-05
2025-06-30	$467,250	890	+264.8%	Shares	Sole	2025-08-04
2024-09-30	$256,502	244	-3.2%	Shares	Sole	2024-10-21
2024-06-30	$264,859	252	-2.7%	Shares	Sole	2025-12-02
2024-03-31	$249,284	259	+7.9%	Shares	Sole	2024-04-16
2023-12-31	$210,789	240	-74.9%	Shares	Sole	2024-01-10
2023-03-31	$786,338	957	+24.6%	Shares	Sole	2023-04-12
2022-12-31	$554,104	768	+135.6%	Shares	Sole	2023-01-13
2022-09-30	$224,571	326	+46.8%	Shares	Sole	2022-10-13
2020-09-30	$124,271	222	-20.4%	Shares	Sole	2020-10-13
2020-06-30	$173,998	279	+65.1%	Shares	Sole	2020-07-31
2020-03-31	$82,521	169	—	Shares	Sole	2020-05-12
No filing history on record for this holder in this stock.