Polar Capital Holdings Plc

Position in ALNY — Alnylam Pharmaceuticals, Inc.

CIK 1837309 London, X0

Position in ALNY

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$145,322,533

+$60,065,937 QoQ

Shares Held

482,751

+87.3% QoQ

Ownership

0.361%

of shares outstanding

% of Portfolio

0.41%

of 13F equity value

Holder Rank

#42

of 784 holders

Holding Since

Dec 2020

23 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Polar Capital Holdings Plc holds $3,774,805,029 across 41 Biotechnology names. ALNY ranks #8 (3.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ELVN	Enliven Therapeutics, Inc.	6,430,636	$326,354,777
2	XENE	Xenon Pharmaceuticals Inc.	4,570,556	$275,878,760
3	CYTK	Cytokinetics Inc	2,253,649	$191,988,358
4	RYTM	Rhythm Pharmaceuticals, Inc.	1,663,632	$184,713,060
5	ARQT	Arcutis Biotherapeutics, Inc.	6,606,945	$173,234,097
6	ASND	Ascendis Pharma A/S	616,908	$164,541,701
7	BBIO	BridgeBio Pharma, Inc.	2,063,609	$153,697,598
8	ALNY	Alnylam Pharmaceuticals, Inc. This page	482,751	$145,322,533

23 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$145,322,533	482,751	+87.3%	Shares	Defined	2026-08-14
2026-03-31	$85,256,596	257,674	+7.1%	Shares	Defined	2026-05-15
2025-12-31	$95,676,975	240,606	-4.3%	Shares	Defined	2026-02-17
2025-09-30	$114,665,760	251,460	+5.9%	Shares	Defined	2025-11-14
2025-06-30	$77,446,375	237,500	-15.2%	Shares	Defined	2025-08-14
2025-03-31	$75,605,600	280,000	-9.7%	Shares	Defined	2025-05-15
2024-12-31	$72,946,100	310,000	0.0%	Shares	Defined	2025-02-14
2024-09-30	$85,259,300	310,000	+8.8%	Shares	Defined	2024-11-14
2024-06-30	$69,255,000	285,000	+21.3%	Shares	Defined	2024-08-14
2024-03-31	$35,120,750	235,000	+27.0%	Shares	Defined	2024-05-15
2023-12-31	$35,410,850	185,000	-21.3%	Shares	Defined	2024-02-14
2023-09-30	$41,618,500	235,000	0.0%	Shares	Defined	2023-11-22
2023-06-30	$44,635,900	235,000	-24.7%	Shares	Defined	2023-12-13
2023-03-31	$62,483,413	311,918	+4.8%	Shares	Defined	2023-12-13
2022-12-31	$70,700,875	297,500	+158.7%	Shares	Defined	2023-02-14
2022-09-30	$23,018,400	115,000	-46.0%	Shares	Defined	2022-11-14
2022-06-30	$31,077,572	213,079	-7.3%	Shares	Defined	2022-08-15
2022-03-31	$37,529,430	229,833	-57.1%	Shares	Defined	2022-05-16
2021-12-31	$90,832,304	535,631	+2.3%	Shares	Defined	2022-02-14
2021-09-30	$98,882,062	523,712	+59.5%	Shares	Defined	2021-11-15
2021-06-30	$55,650,364	328,282	+65.4%	Shares	Defined	2021-08-16
2021-03-31	$28,026,215	198,500	-1.7%	Shares	Sole	2021-05-17
2020-12-31	$26,253,940	202,000	—	Shares	Sole	2021-02-16
No filing history on record for this holder in this stock.