SEI INVESTMENTS CO

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 350894 OAKS, PA

Position in REGN

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$57,947,999

+$14,262,474 QoQ

Shares Held

75,000

+32.5% QoQ

Ownership

0.072%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

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

Healthcare · as of Mar 31, 2026

SEI INVESTMENTS CO holds $1,293,395,418 across 195 Biotechnology names. REGN ranks #7 (4.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	INSM	INSMED Inc	1,395,794	$228,240,234
2	ARGX	Argenx SE	286,966	$209,556,920
3	ASND	Ascendis Pharma A/S	351,146	$80,317,623
4	EXEL	Exelixis, Inc.	1,629,670	$69,896,545
5	INCY	Incyte Corp	714,558	$67,254,197
6	VRTX	Vertex Pharmaceuticals Inc / Ma	133,226	$59,490,737
7	REGN	Regeneron Pharmaceuticals, Inc. This page	75,000	$57,947,999
8	ALNY	Alnylam Pharmaceuticals, Inc.	100,315	$33,191,223

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$57,947,999	75,000	+32.5%	Shares	Sole	2026-05-13
2025-12-31	$43,685,525	56,597	+25.7%	Shares	Sole	2026-02-13
2025-09-30	$25,320,703	45,033	+39.2%	Shares	Sole	2025-11-13
2025-06-30	$16,979,025	32,341	+10.2%	Shares	Sole	2025-08-14
2025-03-31	$18,611,479	29,345	+11.0%	Shares	Sole	2025-05-14
2024-12-31	$18,828,306	26,432	-11.3%	Shares	Sole	2025-02-11
2024-09-30	$31,330,104	29,803	+19.5%	Shares	Defined	2024-11-12
2024-06-30	$26,216,891	24,944	+2.2%	Shares	Sole	2024-08-13
2024-03-31	$23,491,493	24,407	+8.1%	Shares	Defined	2024-05-07
2023-12-31	$19,821,247	22,568	+12.1%	Shares	Sole	2024-02-14
2023-09-30	$16,564,538	20,128	-3.9%	Shares	Defined	2023-11-14
2023-06-30	$15,048,382	20,943	-24.8%	Shares	Defined	2023-08-11
2023-03-31	$22,876,935	27,842	-10.5%	Shares	Defined	2023-05-12
2022-12-31	$22,445,552	31,110	-2.6%	Shares	Defined	2023-02-10
2022-09-30	$21,994,240	31,928	+11.3%	Shares	Defined	2022-11-14
2022-06-30	$16,951,834	28,677	+11.0%	Shares	Defined	2022-08-15
2022-03-31	$18,049,267	25,843	-35.3%	Shares	Defined	2022-05-13
2021-12-31	$25,233,643	39,957	+18.8%	Shares	Defined	2022-02-14
2021-09-30	$20,352,807	33,631	-3.3%	Shares	Defined	2021-11-12
2021-06-30	$19,417,642	34,765	+14.4%	Shares	Defined	2021-08-06
2021-03-31	$14,378,250	30,389	-12.3%	Shares	Defined	2021-05-12
2020-12-31	$16,747,490	34,666	+8.3%	Shares	Defined	2021-02-08
2020-09-30	$17,912,959	32,000	+31.6%	Shares	Defined	2020-12-04
2020-06-30	$15,169,661	24,324	-9.1%	Shares	Sole	2020-08-17
2020-03-31	$13,069,080	26,765	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.