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Annexon, Inc.

ANNX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001528115

In the last 90 days, Annexon, Inc. insiders filed 1 open-market purchase and 0 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $1.02B in total; no superinvestor holds it.

13F holders, Q1 2024

Institutional positions in Annexon, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
127
+28 vs. Q4 2023
Shares held
95.0M
+14.2M (+17.6%) vs. Q4 2023
Total value
$679.4M
+$313.7M (+85.8%) vs. Q4 2023
New holders
39
42 more added
Sold out
11
27 more reduced

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ANNX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 127 institutions
Q1 2021: 72 institutionsQ2 2021: 74 institutionsQ3 2021: 82 institutionsQ4 2021: 97 institutionsQ1 2022: 100 institutionsQ2 2022: 78 institutionsQ3 2022: 72 institutionsQ4 2022: 84 institutionsQ1 2023: 100 institutionsQ2 2023: 95 institutionsQ3 2023: 93 institutionsQ4 2023: 99 institutionsQ1 2024: 127 institutionsQ2 2024: 140 institutionsQ3 2024: 142 institutionsQ4 2024: 153 institutionsQ1 2025: 148 institutionsQ2 2025: 129 institutionsQ3 2025: 144 institutionsQ4 2025: 168 institutionsQ1 2026: 217 institutionsQ2 2026: 216 institutions
Value heldQ1 2024: $679.4M
Q1 2021: $1.04BQ2 2021: $873.7MQ3 2021: $708.6MQ4 2021: $445.7MQ1 2022: $105.9MQ2 2022: $144.9MQ3 2022: $292.3MQ4 2022: $243.3MQ1 2023: $207.6MQ2 2023: $190.0MQ3 2023: $126.0MQ4 2023: $365.7MQ1 2024: $679.4MQ2 2024: $526.9MQ3 2024: $651.8MQ4 2024: $574.6MQ1 2025: $192.1MQ2 2025: $238.7MQ3 2025: $309.2MQ4 2025: $687.2MQ1 2026: $863.7MQ2 2026: $1.02B
Institutions holding ANNX and their total value by quarter
QuarterHoldersValue
Q2 2026216$1.02B
Q1 2026217$863.7M
Q4 2025168$687.2M
Q3 2025144$309.2M
Q2 2025129$238.7M
Q1 2025148$192.1M
Q4 2024153$574.6M
Q3 2024142$651.8M
Q2 2024140$526.9M
Q1 2024127$679.4M
Q4 202399$365.7M
Q3 202393$126.0M
Q2 202395$190.0M
Q1 2023100$207.6M
Q4 202284$243.3M
Q3 202272$292.3M
Q2 202278$144.9M
Q1 2022100$105.9M
Q4 202197$445.7M
Q3 202182$708.6M
Q2 202174$873.7M
Q1 202172$1.04B

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q4 2023.

Institutions holding ANNX in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Comerica Bank10,000$71.7K0.00%+10,000New
Cubist Systematic Strategies, LLC8,094$58.0K0.00%−9,050−52.8%Reduced
Tower Research Capital LLC (TRC)7,014$50.3K0.00%−4,910−41.2%Reduced
Quarry LP7,010$50.3K0.02%+7,010New
California State Teachers Retirement System6,774$48.6K0.00%−738−9.8%Reduced
Ameritas Investment Partners, Inc.6,718$48.2K0.00%+2,949+78.2%Added
Group One Trading, L.P.5,520$39.6K0.00%+1,582+40.2%Added
Legal & General Group Plc5,506$39.5K0.00%+1,978+56.1%Added
Catalyst Funds Management Pty Ltd4,200$30.1K0.01%+4,200New
Metropolitan Life Insurance Co3,603$25.8K0.00%+3,603New
Amalgamated Bank2,290$16.0K0.00%−1,691−42.5%Reduced
Royal Bank of Canada1,883$14.0K0.00%−11,018−85.4%Reduced
Federated Hermes, Inc.1,283$9.20K0.00%+1,283New
Russell Investments Group, Ltd.988$7.08K0.00%00.0%Unchanged
Sunbelt Securities, Inc.800$5.74K0.00%+800New
Advisor Group Holdings, Inc.791$5.67K0.00%00.0%Unchanged
Private Wealth Management Group, LLC654$4.69K0.00%00.0%Unchanged
HighMark Wealth Management LLC300$2.15K0.00%00.0%Unchanged
Lindbrook Capital, LLC290$2.08K0.00%+290New
The PNC Financial Services Group, Inc.161$1.15K0.00%00.0%Unchanged
Parallel Advisors, LLC122$8750.00%+122New
Quadrant Capital Group LLC34$2440.00%+34New
Nisa Investment Advisors, LLC22$1580.00%+22New
Nelson, Van Denburg & Campbell Wealth Management Group, LLC9$640.00%+9New
Farther Finance Advisors, LLC1$70.00%00.0%Unchanged
Driehaus Capital Management LLC258,314$00.00%00.0%Unchanged
CWM, LLC17$00.00%+17New
Sectoral Asset Management Inc0$00.00%−650,911−100.0%Sold out
Vontobel Holding Ltd.0$00.00%−650,911−100.0%Sold out
Silverarc Capital Management, LLC0$00.00%−417,429−100.0%Sold out
Walleye Capital LLC0$00.00%−378,279−100.0%Sold out
Algert Global LLC0$00.00%−27,880−100.0%Sold out
Atom Investors LP0$00.00%−15,615−100.0%Sold out
HRT Financial LP0$00.00%−12,012−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−11,857−100.0%Sold out
Walleye Trading LLC0$00.00%−10,719−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−10,107−100.0%Sold out
Point72 Middle East FZE0$00.00%−614−100.0%Sold out