Mariner’s Annexon ANNX Stock Holding History

Mariner’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
2026 Q2	$94.1K	Sell	16,469 -36,773	-69%	-$203K	﹤0.01%	3340
2026 Q1	$295K	Buy	53,242 +21,907	+70%	+$123K	﹤0.01%	2895
2025 Q4	$157K	Buy	+31,335	New	+$120K	﹤0.01%	3234

Other funds holding ANNX

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

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

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

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

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

Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

MCO

MAK Capital One New York $714M AUM 68.07% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

Mariner's ANNX Position: Q2 2026 in Review

Mariner reduced its Annexon (ANNX) stake by 69% in Q2 2026, selling an estimated $203K and leaving 16,469 shares worth $94.1K. The position accounts for ﹤0.01% of the portfolio, ranked #3340.

Mariner first reported a position in ANNX in Q4 2025 and has held it in 3 quarters since. The position peaked at $295K in Q1 2026. 217 funds tracked by Wall St. Rank hold ANNX as of Q2 2026.

Mariner held 16,469 shares of Annexon worth $94.1K as of Q2 2026.
Mariner sold 36,773 Annexon shares in Q2 2026, an estimated $203K.
Annexon made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3340 holding.
Mariner first reported a position in Annexon in Q4 2025 and has held it in 3 quarters since.
Mariner's Annexon position peaked at $295K in Q1 2026.
217 funds tracked by Wall St. Rank held Annexon as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.