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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, Q4 2022

Institutional positions in Annexon, Inc. as of Dec 31, 2022. 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
84
+12 vs. Q3 2022
Shares held
48.3M
+778.4K (+1.6%) vs. Q3 2022
Total value
$243.3M
−$49.1M (−16.8%) vs. Q3 2022
New holders
16
24 more added
Sold out
4
22 more reduced

Compare with Q3 2022: 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 holdersQ4 2022: 84 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 heldQ4 2022: $243.3M
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, Q4 2022

Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q3 2022.

Institutions holding ANNX in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Bain Capital Life Sciences Investors, LLC4,886,616$25.3M2.82%+1,284,690+35.7%Added
Satter Management Co., L.P.4,408,966$22.8M26.22%00.0%Unchanged
BVF Inc3,780,694$19.5M0.82%00.0%Unchanged
Eventide Asset Management, LLC3,626,508$18.7M0.37%00.0%Unchanged
Adage Capital Partners GP, L.L.C.3,549,975$18.4M0.04%−43,000−1.2%Reduced
Redmile Group, LLC3,503,190$18.1M0.74%00.0%Unchanged
Fairmount Funds Management LLC3,358,563$17.4M2.75%00.0%Unchanged
VR Adviser, LLC3,220,050$16.6M2.80%00.0%Unchanged
Federated Hermes, Inc.3,057,800$15.8M0.04%00.0%Unchanged
Citadel Advisors LLC1,866,783$9.65M0.01%+460,678+32.8%Added
Vanguard Group Inc1,548,871$8.01M0.00%+8,404+0.5%Added
Pictet Asset Management SA1,232,713$6.37M0.01%−1,025,998−45.4%Reduced
BlackRock Inc.1,160,276$6.00M0.00%+19,828+1.7%Added
Blackstone Group Inc.910,211$4.71M0.02%00.0%Unchanged
Massachusetts Financial Services Co784,695$4.06M0.00%+2,563+0.3%Added
Point72 Asset Management, L.P.750,000$3.88M0.01%+750,000New
Deerfield Management Company, L.P. (Series C)583,913$3.02M0.06%00.0%Unchanged
Millennium Management LLC526,531$2.72M0.00%−21,881−4.0%Reduced
Board of Trustees of The Leland Stanford Junior University482,550$2.49M0.25%00.0%Unchanged
Acadian Asset Management LLC396,812$2.05M0.01%−6,385−1.6%Reduced
Geode Capital Management, LLC372,067$1.92M0.00%+7,768+2.1%Added
Renaissance Technologies LLC310,100$1.60M0.00%−20,100−6.1%Reduced
Pura Vida Investments, LLC302,734$1.57M0.26%−71,896−19.2%Reduced
Woodline Partners LP175,650$908.1K0.01%−1,086,120−86.1%Reduced
Candriam Luxembourg S.C.A.164,558$850.7K0.01%−992−0.6%Reduced
Gsa Capital Partners LLP161,360$834.0K0.10%+2,801+1.8%Added
K2 Principal Fund, L.P.145,564$752.6K0.21%+96,233+195.1%Added
ExodusPoint Capital Management, LP138,049$714.0K0.01%+37,565+37.4%Added
Deutsche Bank AG126,812$655.6K0.00%00.0%Unchanged
State Street Corp123,499$638.5K0.00%+28,860+30.5%Added
Susquehanna International Group, LLP104,358$539.5K0.00%+91,406+705.7%Added
Two Sigma Advisers, LP93,200$481.8K0.00%−24,600−20.9%Reduced
Morgan Stanley84,971$439.3K0.00%+30,026+54.6%Added
Northern Trust Corp80,835$417.9K0.00%−136−0.2%Reduced
Citigroup Inc80,509$416.2K0.00%+76,420+1,868.9%Added
D. E. Shaw & Co., Inc.78,509$405.9K0.00%+30,484+63.5%Added
Bank of Montreal65,380$365.0K0.00%+65,380New
Dimensional Fund Advisors LP57,156$295.0K0.00%+200.0%Added
Goldman Sachs Group Inc53,878$278.6K0.00%−15,697−22.6%Reduced
Invesco Ltd.50,263$259.9K0.00%−326−0.6%Reduced
Qube Research & Technologies Ltd48,109$248.7K0.00%+26,483+122.5%Added
Simplex Trading, LLC44,760$231.0K0.01%+44,760New
Cornercap Investment Counsel Inc44,515$230.1K0.04%00.0%Unchanged
Bank of New York Mellon Corp37,667$194.7K0.00%+20,000+113.2%Added
Barclays PLC33,366$172.5K0.00%+25,007+299.2%Added
683 Capital Management, LLC32,658$168.8K0.02%+32,658New
JPMorgan Chase & Co31,722$164.0K0.00%+5,706+21.9%Added
Marshall Wace, LLP28,856$149.2K0.00%+28,856New
State of Wisconsin Investment Board26,800$138.6K0.00%−17,000−38.8%Reduced
Jane Street Group, LLC23,611$122.1K0.00%+23,611New
Balyasny Asset Management LLC21,605$111.7K0.00%+21,605New
Man Group plc21,377$110.5K0.00%+21,377New
Charles Schwab Investment Management Inc19,332$99.9K0.00%00.0%Unchanged
Values First Advisors, Inc.17,199$88.9K0.06%−4,382−20.3%Reduced
Coastal Bridge Advisors, LLC17,000$87.9K0.02%00.0%Unchanged
Schonfeld Strategic Advisors LLC16,677$86.2K0.00%−6,523−28.1%Reduced
Lighthouse Investment Partners, LLC16,560$85.6K0.02%+16,560New
Forefront Analytics, LLC15,456$79.9K0.04%−599−3.7%Reduced
Boothbay Fund Management, LLC15,443$79.8K0.00%+15,443New
Kestra Advisory Services, LLC15,000$77.5K0.00%00.0%Unchanged
EWG Elevate Inc.15,000$77.5K0.04%+5,000+50.0%Added
Cubist Systematic Strategies, LLC13,768$71.2K0.00%−7,136−34.1%Reduced
Jump Financial, LLC12,120$62.7K0.00%+12,120New
Mirabella Financial Services LLP11,836$61.2K0.01%+11,836New
PDT Partners, LLC11,792$61.0K0.01%−9,283−44.0%Reduced
Cambridge Investment Research Advisors, Inc.10,000$52.0K0.00%00.0%Unchanged
Bank of America Corp8,938$46.2K0.00%+2,049+29.7%Added
Belvedere Trading LLC8,301$42.9K0.02%+8,301New
Tower Research Capital LLC (TRC)6,089$31.0K0.00%−2,336−27.7%Reduced
Advisor Group Holdings, Inc.5,791$30.0K0.00%00.0%Unchanged
UBS Group AG4,100$21.2K0.00%+1,210+41.9%Added
Freedom Wealth Alliance, LLC3,889$20.1K0.03%+3,889New
Driehaus Capital Management LLC1,291,572$6.22K0.00%00.0%Unchanged
FMR LLC1,172$6.06K0.00%−6−0.5%Reduced
Quantbot Technologies LP1,000$5.17K0.00%−1,400−58.3%Reduced
Red Tortoise LLC729$3.77K0.00%+729New
China Universal Asset Management Co., Ltd.484$2.50K0.00%+38+8.5%Added
Ellevest, Inc.405$2.09K0.00%−70−14.7%Reduced
Capital Advisors, Ltd. LLC381$2.00K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.312$1.61K0.00%00.0%Unchanged
HighMark Wealth Management LLC300$1.55K0.00%00.0%Unchanged
Wells Fargo & Company272$1.41K0.00%+6+2.3%Added
Daiwa Securities Group Inc.131$1.00K0.00%00.0%Unchanged
Royal Bank of Canada9$00.00%+9New
UBS Oconnor LLC0$00.00%−121,757−100.0%Sold out
Bailard, Inc.0$00.00%−29,086−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−14,132−100.0%Sold out
LMR Partners LLP0$00.00%−11,121−100.0%Sold out