JANUS HENDERSON GROUP PLC

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 1274173 LONDON, X0

Back to REGN Full portfolio

Position in REGN

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$161,673,373

+$2,921,328 QoQ

Shares Held

209,248

+1.7% QoQ

Ownership

0.203%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0% Shared 95% None 5%

Common Shares in REGN Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $15,213,180,190 across 182 Biotechnology names. REGN ranks #21 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ARGX	Argenx SE	2,541,732	$1,856,099,791
2	PRAX	Praxis Precision Medicines, Inc.	3,458,863	$1,114,411,067
3	MDGL	Madrigal Pharmaceuticals, Inc.	2,018,647	$1,056,701,142
4	BBIO	BridgeBio Pharma, Inc.	13,179,013	$978,673,503
5	PCVX	Vaxcyte, Inc.	16,575,875	$963,224,094
6	VRTX	Vertex Pharmaceuticals Inc / Ma	2,131,527	$951,812,064
7	RVMD	Revolution Medicines, Inc.	9,766,496	$949,791,733
8	MIRM	Mirum Pharmaceuticals, Inc.	6,945,813	$641,654,204

All Filings in REGN

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$161,673,373	209,248	+1.7%	Shares	Defined	2026-05-18
2025-12-31	$158,752,045	205,672	+178.9%	Shares	Defined	2026-02-17
2025-09-30	$41,463,475	73,743	+463.4%	Shares	Defined	2025-11-14
2025-06-30	$6,871,200	13,088	-3.4%	Shares	Defined	2025-08-14
2025-03-31	$8,595,718	13,553	+0.6%	Shares	Defined	2025-05-15
2024-12-31	$9,597,221	13,473	-86.3%	Shares	Defined	2025-02-14
2024-09-30	$103,162,385	98,134	-2.3%	Shares	Defined	2024-11-14
2024-06-30	$105,548,636	100,424	-3.4%	Shares	Defined	2024-08-14
2024-03-31	$100,091,258	103,992	-7.8%	Shares	Defined	2024-05-15
2023-12-31	$99,096,581	112,829	-7.8%	Shares	Defined	2024-02-14
2023-09-30	$100,741,001	122,413	+40.2%	Shares	Defined	2023-11-14
2023-06-30	$62,723,510	87,293	-55.7%	Shares	Defined	2023-08-14
2023-03-31	$161,927,327	197,071	-20.2%	Shares	Defined	2023-05-15
2022-12-31	$178,223,902	247,022	-13.4%	Shares	Defined	2023-02-14
2022-09-30	$196,516,010	285,273	+83.4%	Shares	Defined	2023-01-13
2022-06-30	$91,931,945	155,519	-7.8%	Shares	Defined	2022-08-15
2022-03-31	$117,824,849	168,702	-5.7%	Shares	Defined	2022-05-16
2021-12-31	$113,028,186	178,978	-9.4%	Shares	Defined	2022-02-14
2021-09-30	$119,611,406	197,646	-5.0%	Shares	Defined	2021-11-16
2021-06-30	$116,146,158	207,946	-11.3%	Shares	Defined	2021-08-16
2021-03-31	$110,869,476	234,327	-38.6%	Shares	Defined	2021-05-17
2020-12-31	$184,462,509	381,823	+11.8%	Shares	Defined	2021-02-16
2020-09-30	$191,213,570	341,587	+15.8%	Shares	Defined	2020-11-16
2020-06-30	$183,986,104	295,015	+677.8%	Shares	Defined	2020-08-14
2020-03-31	$18,521,327	37,931	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.