Rhenman & Partners Asset Management’s Annexon ANNX Stock Holding History

Rhenman & Partners Asset Management’s Portfolio ANNX Stock Details ANNX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-823,000	Closed	-$2.51M	–	97
2025 Q3	$2.51M	Buy	823,000 +363,000	+79%	+$901K	0.28%	77
2025 Q2	$1.1M	Hold	460,000	–	–	0.14%	86
2025 Q1	$888K	Sell	460,000 -82,500	-15%	-$275K	0.1%	87
2024 Q4	$2.78M	Sell	542,500 -17,500	-3%	-$108K	0.29%	71
2024 Q3	$3.32M	Sell	560,000 -340,000	-38%	-$2.02M	0.27%	75
2024 Q2	$4.41M	Buy	+900,000	New	+$4.65M	0.42%	59
2022 Q2	–	Sell	-250,000	Closed	-$683K	–	87
2022 Q1	$683K	Hold	250,000	–	–	0.07%	89
2021 Q4	$2.9M	Hold	250,000	–	–	0.19%	84
2021 Q3	$4.65M	Hold	250,000	–	–	0.33%	77
2021 Q2	$5.63M	Buy	250,000 +70,000	+39%	+$1.55M	0.38%	78
2021 Q1	$5.01M	Buy	180,000 +50,000	+38%	+$1.38M	0.35%	74
2020 Q4	$3.25M	Buy	+130,000	New	+$3.35M	0.27%	74

Other funds holding ANNX

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return

BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

BCLSI

Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return

Bellevue Group Kuesnacht, Switzerland $4.75B AUM 68.58% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Rhenman & Partners Asset Management's ANNX Position: Q4 2025 in Review

Rhenman & Partners Asset Management sold out of Annexon (ANNX) in Q4 2025, closing a stake of 823,000 shares — an estimated $2.51M sold.

Rhenman & Partners Asset Management first reported a position in ANNX in Q4 2020 and held it in 12 quarters. The position peaked at $5.63M in Q2 2021. 168 funds tracked by Wall St. Rank hold ANNX as of Q4 2025.

Rhenman & Partners Asset Management reported no remaining Annexon position as of Q4 2025 after selling out during the quarter.
Rhenman & Partners Asset Management sold 823,000 Annexon shares in Q4 2025, an estimated $2.51M.
Rhenman & Partners Asset Management first reported a position in Annexon in Q4 2020 and held it in 12 quarters.
Rhenman & Partners Asset Management's Annexon position peaked at $5.63M in Q2 2021.
168 funds tracked by Wall St. Rank held Annexon as of Q4 2025.

Based on Rhenman & Partners Asset Management's 13F filing for Q4 2025, filed 13 Feb 2026.