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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, Q3 2021

Institutional positions in Annexon, Inc. as of Sep 30, 2021. 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
82
+9 vs. Q2 2021
Shares held
38.1M
+244.7K (+0.6%) vs. Q2 2021
Total value
$708.6M
−$141.6M (−16.7%) vs. Q2 2021
New holders
18
26 more added
Sold out
9
25 more reduced

1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 holdersQ3 2021: 82 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 heldQ3 2021: $708.6M
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, Q3 2021

Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q2 2021.

Institutions holding ANNX in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Redmile Group, LLC3,349,185$62.3M1.09%−75,853−2.2%Reduced
Bain Capital Life Sciences Investors, LLC3,241,628$60.3M3.74%00.0%Unchanged
BlackRock Inc.2,878,874$53.6M0.00%−256,944−8.2%Reduced
Eventide Asset Management, LLC2,531,628$47.1M0.62%+122,462+5.1%Added
NEA Management Company, LLC2,358,606$43.9M0.55%−139,055−5.6%Reduced
FMR LLC2,105,422$39.2M0.00%+125,175+6.3%Added
Federated Hermes, Inc.2,027,700$37.7M0.07%+27,000+1.3%Added
Satter Management Co., L.P.1,954,978$36.4M24.90%00.0%Unchanged
Citadel Advisors LLC1,862,623$34.7M0.04%−132,780−6.7%Reduced
Price T Rowe Associates Inc1,724,671$32.1M0.00%+414,187+31.6%Added
Alliancebernstein L.P.1,717,281$32.0M0.01%+119,758+7.5%Added
Pictet Asset Management SA1,617,234$30.1M0.03%+1,617,234New
Farallon Capital Management, L.L.C.1,157,261$21.5M0.12%−200,846−14.8%Reduced
Point72 Asset Management, L.P.1,022,483$19.0M0.09%+671,371+191.2%Added
Vanguard Group Inc1,020,858$19.0M0.00%+117,921+13.1%Added
Adage Capital Partners GP, L.L.C.1,009,830$18.8M0.04%+50,000+5.2%Added
Blackstone Group Inc.910,211$16.9M0.04%−1,820,424−66.7%Reduced
Massachusetts Financial Services Co720,135$13.4M0.00%−9,578−1.3%Reduced
Deerfield Management Company, L.P. (Series C)583,913$10.9M0.21%00.0%Unchanged
State Street Corp504,643$9.39M0.00%−432,027−46.1%Reduced
First Light Asset Management, LLC483,773$9.00M0.59%+277,696+134.8%Added
Board of Trustees of The Leland Stanford Junior University482,550$8.98M0.67%00.0%Unchanged
Geode Capital Management, LLC425,043$7.91M0.00%+19,311+4.8%Added
Northern Trust Corp286,934$5.34M0.00%−6,974−2.4%Reduced
Rhenman & Partners Asset Management AB250,000$4.65M0.33%00.0%Unchanged
Alyeska Investment Group, L.P.203,639$3.79M0.05%+101,046+98.5%Added
Charles Schwab Investment Management Inc190,927$3.55M0.00%+50,062+35.5%Added
Nuveen Asset Management, LLC118,663$2.63M0.00%−6,385−5.1%Reduced
Sphera Funds Management Ltd.123,637$2.30M0.23%−24,681−16.6%Reduced
Novo Holdings A/S114,330$2.13M0.11%+114,330New
Bank of New York Mellon Corp103,366$1.92M0.00%+8,981+9.5%Added
AlpInvest Partners B.V.93,141$1.73M0.67%+93,141New
Schroder Investment Management Group82,231$1.53M0.00%+82,231New
JPMorgan Chase & Co71,077$1.32M0.00%+53,601+306.7%Added
Morgan Stanley52,620$979.0K0.00%−44,034−45.6%Reduced
TD Asset Management Inc49,273$917.0K0.00%+12,000+32.2%Added
Alps Advisors Inc46,983$874.0K0.01%−3,406−6.8%Reduced
State of Wisconsin Investment Board40,300$750.0K0.00%+6,611+19.6%Added
Rhumbline Advisers38,281$712.0K0.00%+1,475+4.0%Added
Spring Creek Investment Management, LLC38,109$709.0K1.68%+38,109New
Swiss National Bank33,600$625.0K0.00%00.0%Unchanged
Goldman Sachs Group Inc31,774$591.0K0.00%+9,481+42.5%Added
California State Teachers Retirement System29,379$547.0K0.00%−13,620−31.7%Reduced
New York State Common Retirement Fund24,626$458.0K0.00%−4,321−14.9%Reduced
DAFNA Capital Management LLC23,296$434.0K0.12%+23,296New
Raymond James & Associates22,048$410.0K0.00%+22,048New
SG Americas Securities, LLC21,500$400.0K0.00%+21,500New
Deutsche Bank AG17,937$334.0K0.00%−574−3.1%Reduced
American International Group, Inc.17,066$318.0K0.00%−405−2.3%Reduced
Manufacturers Life Insurance Company, The16,959$316.0K0.00%−1,093−6.1%Reduced
Cna Financial Corp16,920$315.0K0.09%+890+5.6%Added
Mirabella Financial Services LLP14,120$263.0K0.03%+14,120New
Pinz Capital Management, LP13,229$246.0K0.11%+13,229New
Brookfield Asset Management Inc.13,144$245.0K0.00%+13,144New
Invesco Ltd.13,004$242.0K0.00%+1,219+10.3%Added
Bessemer Group Inc12,703$236.0K0.00%+12,703New
Voya Investment Management LLC12,330$229.0K0.00%00.0%Unchanged
ProShare Advisors LLC12,183$227.0K0.00%−2,780−18.6%Reduced
DekaBank Deutsche Girozentrale12,000$217.0K0.00%00.0%Unchanged
Victory Capital Management Inc11,245$209.0K0.00%−155−1.4%Reduced
Millennium Management LLC11,002$205.0K0.00%+11,002New
MetLife Investment Management10,674$198.6K0.00%00.0%Unchanged
Alta Wealth Advisors LLC10,158$189.0K0.14%+10,158New
Bank of America Corp9,731$181.0K0.00%−1,037−9.6%Reduced
Virtus ETF Advisers LLC9,043$168.0K0.07%−472−5.0%Reduced
Metropolitan Life Insurance Co8,725$162.4K0.00%00.0%Unchanged
Citigroup Inc8,426$157.0K0.00%−37,379−81.6%Reduced
Cubist Systematic Strategies, LLC6,272$117.0K0.00%+6,272New
Legal & General Group Plc6,079$113.0K0.00%+3,017+98.5%Added
Royal Bank of Canada3,254$61.0K0.00%+1,059+48.2%Added
Ameritas Investment Partners, Inc.2,169$40.0K0.00%00.0%Unchanged
HighMark Wealth Management LLC1,715$32.0K0.02%+261+18.0%Added
Tower Research Capital LLC (TRC)1,156$22.0K0.00%−766−39.9%Reduced
Advisor Group Holdings, Inc.1,091$20.0K0.00%+850+352.7%Added
Great West Life Assurance Co923$17.0K0.00%00.0%Unchanged
Penserra Capital Management LLC875$16.0K0.00%+5+0.6%Added
State of Wyoming669$12.0K0.01%−390−36.8%Reduced
Quantbot Technologies LP600$11.0K0.00%+600New
Red Tortoise LLC729$5.00K0.00%+729New
Wells Fargo & Company111$2.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.131$2.00K0.00%+59+81.9%Added
Signaturefd, LLC37$1.00K0.00%+37New
Janus Henderson Group PLC0$00.00%−581,747−100.0%Sold out
Logos Global Management LP0$00.00%−159,622−100.0%Sold out
Rafferty Asset Management, LLC0$00.00%−27,714−100.0%Sold out
One Wealth Advisors, LLC0$00.00%−17,000−100.0%Sold out
Maven Securities LTD0$00.00%−15,996−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−14,074−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−10,122−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−2,267−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−200−100.0%Sold out
Pictet Asset Management Ltd––––Not filed