MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in ANNX — Annexon, Inc.

CIK 912938 Boston, MA

Position in ANNX

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$5,923,359

+$918,701 QoQ

Shares Held

1,037,366

+14.8% QoQ

Ownership

0.507%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#34

of 216 holders

Holding Since

Sep 2020

24 quarters on record

Voting authority Sole 98% Shared 2% None 0%

Healthcare · as of Jun 30, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $2,249,676,327 across 65 Biotechnology names. ANNX ranks #28 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASND	Ascendis Pharma A/S	1,875,301	$500,180,281
2	RVMD	Revolution Medicines, Inc.	2,012,317	$376,866,725
3	VRTX	Vertex Pharmaceuticals Inc / Ma	423,049	$210,141,127
4	TECH	BIO-TECHNE Corp	2,746,462	$194,037,538
5	SRRK	Scholar Rock Holding Corp	2,607,348	$143,404,140
6	LGND	Ligand Pharmaceuticals Inc	375,762	$118,774,610
7	ALNY	Alnylam Pharmaceuticals, Inc.	350,560	$105,529,075
8	BNTX	BioNTech SE	677,708	$63,060,728

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$5,923,359	1,037,366	+14.8%	Shares	Defined	2026-08-03
2026-03-31	$5,004,658	903,368	-0.0%	Shares	Sole	2026-05-14
2025-12-31	$4,535,263	903,439	-7.8%	Shares	Sole	2026-01-22
2025-09-30	$2,989,869	980,285	-0.7%	Shares	Sole	2025-10-29
2025-06-30	$2,370,031	987,513	-3.2%	Shares	Sole	2025-08-08
2025-03-31	$1,969,404	1,020,417	+0.4%	Shares	Sole	2025-05-02
2024-12-31	$5,214,983	1,016,566	-12.4%	Shares	Sole	2025-02-12
2024-09-30	$6,872,445	1,160,886	+9.0%	Shares	Sole	2024-11-12
2024-06-30	$5,217,524	1,064,801	+37.6%	Shares	Sole	2024-08-09
2024-03-31	$5,548,963	773,914	-0.5%	Shares	Sole	2024-05-14
2023-12-31	$3,531,974	777,968	+0.1%	Shares	Sole	2024-02-08
2023-09-30	$1,834,189	777,199	+0.2%	Shares	Sole	2023-11-08
2023-06-30	$2,731,006	775,854	-1.0%	Shares	Sole	2023-08-09
2023-03-31	$3,018,515	784,030	-0.1%	Shares	Sole	2023-05-10
2022-12-31	$4,056,873	784,695	+0.3%	Shares	Sole	2023-02-13
2022-09-30	$4,833,575	782,132	+7.2%	Shares	Sole	2022-11-09
2022-06-30	$2,751,127	729,742	-0.8%	Shares	Sole	2022-08-09
2022-03-31	$2,007,379	735,304	+2.9%	Shares	Sole	2022-05-11
2021-12-31	$8,212,833	714,781	-0.7%	Shares	Sole	2022-02-10
2021-09-30	$13,401,712	720,135	-1.3%	Shares	Sole	2021-11-10
2021-06-30	$16,425,839	729,713	-0.3%	Shares	Sole	2021-08-13
2021-03-31	$20,373,840	731,819	-16.2%	Shares	Sole	2021-05-13
2020-12-31	$21,853,142	873,078	+1.9%	Shares	Sole	2021-05-12
2020-09-30	$25,908,319	857,040	—	Shares	Sole	2020-11-12
No filing history on record for this holder in this stock.