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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 2026

Institutional positions in Annexon, Inc. as of Mar 31, 2026. 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
217
+51 vs. Q4 2025
Shares held
155.9M
+26.8M (+20.8%) vs. Q4 2025
Total value
$863.7M
+$215.6M (+33.3%) vs. Q4 2025
New holders
66
87 more added
Sold out
15
49 more reduced

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 2026: 217 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 2026: $863.7M
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 2026

Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q4 2025.

Institutions holding ANNX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Los Angeles Capital Management LLC62,073$343.9K0.00%+62,073New
Janus Henderson Group PLC59,100$327.7K0.00%+59,100New
Brevan Howard Capital Management LP58,433$323.7K0.00%−65,320−52.8%Reduced
Axq Capital, LP58,185$322.3K0.04%+29,077+99.9%Added
China Universal Asset Management Co., Ltd.57,683$319.6K0.02%+21,599+59.9%Added
STRS Ohio55,500$307.5K0.00%+55,500New
ADAR1 Capital Management, LLC55,000$304.7K0.02%+7,000+14.6%Added
Virtus Investment Advisers, Inc.54,866$304.0K0.08%+1,339+2.5%Added
DRW Securities, LLC54,484$301.8K0.02%+54,484New
Vanguard Global Advisers, LLC54,054$299.5K0.00%+54,054New
Zurcher Kantonalbank (Zurich Cantonalbank)53,867$298.4K0.00%+53,867New
Verdad Advisers, LP53,277$295.2K0.33%+53,277New
Mariner, LLC53,242$294.8K0.00%+21,907+69.9%Added
EntryPoint Capital, LLC51,421$284.9K0.08%+8,647+20.2%Added
BIT Capital GmbH50,000$277.0K0.02%+50,000New
State of Wisconsin Investment Board49,746$275.6K0.00%+49,746New
Jane Street Group, LLC47,120$261.0K0.00%−466,716−90.8%Reduced
Creative Planning45,923$254.4K0.00%+21,919+91.3%Added
Allegheny Financial Group LTD42,900$237.7K0.03%00.0%Unchanged
Canada Pension Plan Investment Board40,800$226.0K0.00%+23,200+131.8%Added
State of New Jersey Common Pension Fund D40,753$225.8K0.00%+40,753New
CWM, LLC39,652$219.7K0.00%+9,355+30.9%Added
Police & Firemen's Retirement System of New Jersey36,028$199.6K0.00%+7,923+28.2%Added
Fifth Third Bancorp35,398$196.1K0.00%+35,398New
Vanguard Investments Australia, Ltd.35,034$194.1K0.00%+35,034New
Persistent Asset Partners Ltd33,625$186.3K0.07%−60,032−64.1%Reduced
Arizona State Retirement System32,753$181.5K0.00%+32,753New
Gsa Capital Partners LLP31,694$176.0K0.01%+31,694New
Lido Advisors, LLC31,000$171.7K0.00%−3,952−11.3%Reduced
Citigroup Inc30,817$170.7K0.00%+7,177+30.4%Added
Intech Investment Management LLC29,929$165.8K0.00%−12,595−29.6%Reduced
New York State Common Retirement Fund29,568$163.8K0.00%00.0%Unchanged
Mirabella Financial Services LLP28,739$159.2K0.02%+28,739New
Virtu Financial LLC28,450$158.0K0.01%+28,450New
KLP Kapitalforvaltning AS26,300$145.7K0.00%+26,300New
ProShare Advisors LLC25,595$141.8K0.00%+897+3.6%Added
E Fund Management Co., Ltd.25,552$141.6K0.00%+25,552New
AlphaCentric Advisors LLC24,518$135.8K0.14%+24,518New
Barclays PLC24,291$134.6K0.00%−265,672−91.6%Reduced
Winton Group Ltd24,100$133.5K0.00%−29,300−54.9%Reduced
SBI Securities Co., Ltd.23,225$128.7K0.00%+23,200+92,800.0%Added
TD Asset Management Inc22,760$126.1K0.00%−24,088−51.4%Reduced
Voya Investment Management LLC22,227$123.1K0.00%+2,909+15.1%Added
Cygnus Capital Advisors, LLC22,200$123.0K0.08%+10,200+85.0%Added
Prelude Capital Management, LLC22,200$123.0K0.01%+10,200+85.0%Added
Great West Life Assurance Co21,646$121.0K0.00%+21,646New
Wealth Enhancement Advisory Services, LLC21,932$120.6K0.00%+2,379+12.2%Added
Landscape Capital Management, L.L.C.21,512$119.2K0.01%+11,496+114.8%Added
Quarry LP21,250$117.7K0.02%−53,750−71.7%Reduced
Prudential Financial Inc20,180$111.8K0.00%+20,180New
CI Private Wealth, LLC19,704$109.2K0.00%+11+0.1%Added
Raymond James Financial Inc19,369$107.3K0.00%−5,500−22.1%Reduced
Mercer Global Advisors Inc18,714$103.7K0.00%+8,328+80.2%Added
Cerity Partners LLC17,979$99.6K0.00%+3,178+21.5%Added
Scientech Research LLC17,316$95.9K0.08%+100+0.6%Added
Coastal Bridge Advisors, LLC17,000$94.2K0.01%00.0%Unchanged
Quadrature Capital Ltd16,903$93.6K0.00%−31,670−65.2%Reduced
Pictet Asset Management Holding SA16,701$92.5K0.00%+16,701New
Fox Run Management, L.L.C.17,678$87.7K0.02%+17,678New
Teacher Retirement System of Texas15,099$83.6K0.00%+15,099New
VisionPoint Advisory Group, LLC15,000$83.1K0.02%00.0%Unchanged
ExodusPoint Capital Management, LP14,938$82.8K0.00%+14,938New
Vontobel Holding Ltd.14,511$80.4K0.00%+14,511New
Forefront Analytics, LLC14,240$78.9K0.07%+1,014+7.7%Added
Magnetar Financial LLC14,205$78.7K0.00%+14,205New
LPL Financial LLC13,214$73.2K0.00%+13,214New
JustInvest LLC12,936$71.7K0.00%+35+0.3%Added
Tower Research Capital LLC (TRC)12,677$70.2K0.00%+10,711+544.8%Added
American Century Companies Inc12,463$69.0K0.00%−238,695−95.0%Reduced
nVerses Capital, LLC11,897$65.9K0.06%+11,897New
Xponance, Inc.11,206$62.1K0.00%+11,206New
Abel Hall, LLC10,921$60.5K0.01%+10,921New
Ameritas Investment Partners, Inc.10,790$59.8K0.00%+1,101+11.4%Added
Merit Financial Group, LLC10,745$59.5K0.00%+10,745New
Mount Vernon Associates Inc10,500$58.0K0.04%00.0%Unchanged
Integrated Wealth Concepts LLC10,232$56.7K0.00%+10,232New
Cambridge Investment Research Advisors, Inc.10,110$56.0K0.00%−590−5.5%Reduced
Harbor Advisors LLC10,000$55.4K0.01%00.0%Unchanged
Shay Capital LLC10,000$55.4K0.01%+10,000New
Mirae Asset Global Investments Co., Ltd.7,549$41.8K0.00%+516+7.3%Added
Nisa Investment Advisors, LLC7,413$41.1K0.00%+4,800+183.7%Added
California State Teachers Retirement System7,173$39.7K0.00%+1,010+16.4%Added
Geneos Wealth Management Inc.6,000$33.2K0.00%00.0%Unchanged
Sterling Capital Management LLC4,368$24.2K0.00%−1,599−26.8%Reduced
GF Fund Management Co. Ltd.3,234$17.9K0.00%+391+13.8%Added
Jones Financial Companies LLLP3,565$17.8K0.00%+578+19.4%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.2,367$13.1K0.00%+2,367New
Larson Financial Group LLC2,016$11.2K0.00%+16+0.8%Added
Rockefeller Capital Management L.P.1,662$9.21K0.00%+1,328+397.6%Added
Farther Finance Advisors, LLC1,365$7.32K0.00%+1,056+341.7%Added
Advisor Group Holdings, Inc.1,269$7.03K0.00%−146,106−99.1%Reduced
The PNC Financial Services Group, Inc.1,132$6.27K0.00%00.0%Unchanged
Optiver Holding B.V.1,122$6.22K0.00%+592+111.7%Added
Essential Partners LLC1,092$6.05K0.00%+5+0.5%Added
Royal Bank of Canada1,160$6.00K0.00%−1,695−59.4%Reduced
Allworth Financial LP1,061$5.88K0.00%+645+155.0%Added
Trask Adam Roland1,000$5.54K0.01%+1,000New
Caitong International Asset Management Co., Ltd835$4.63K0.00%−18,362−95.7%Reduced
MAI Capital Management795$4.41K0.00%+732+1,161.9%Added
Federated Hermes, Inc.753$4.17K0.00%00.0%Unchanged