MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in ANNX — Annexon, Inc.

CIK 912938 Boston, MA

Position in ANNX

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$5,004,658

+$469,395 QoQ

Shares Held

903,368

-0.0% QoQ

Ownership

0.453%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2020

23 quarters on record

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

Healthcare · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $1,374,765,738 across 53 Biotechnology names. ANNX ranks #21 (0.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASND	Ascendis Pharma A/S	1,860,669	$425,590,816
2	TECH	BIO-TECHNE Corp	3,733,248	$195,099,537
3	ALNY	Alnylam Pharmaceuticals, Inc.	496,004	$164,112,841
4	VRTX	Vertex Pharmaceuticals Inc / Ma	327,498	$146,240,953
5	LGND	Ligand Pharmaceuticals Inc	411,543	$82,164,559
6	BNTX	BioNTech SE	670,514	$59,595,283
7	IONS	Ionis Pharmaceuticals Inc	666,116	$50,018,650
8	INCY	Incyte Corp	410,729	$38,657,809

23 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
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.