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Annexon, Inc. hedge fund holdings

ANNXNASDAQ
$4.19+0.07 (+1.70% today)

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

ANNX · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+34.7%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 20255650$24M$22.9M120Aug 14, 2025
Q3 20256534$45.8M$43M133Nov 14, 2025
Q4 20259731$218M$29.8M162Feb 14, 2026
Q1 202611853$196M$95.1M210May 15, 2026
Q2 20268779$230M$113M204Aug 14, 2026

Quarterly action breakdown

Q2 2026
204 filers
New position
20
$38.3M+6.7M sh
Increased
67
$191M+33.5M sh
Reduced
59
-$102M-17.9M sh
Out / sold
20
-$10.6M-1.85M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
MPM Bioimpact LLCNew Buy+$20.2M$20.2M1.23%Aug 14, 2026
Logos Global Management LPNew Buy+$8.57M$8.57M0.37%Aug 14, 2026
Mak Capital One LLCAdded 24.09%+$6.5M$33.5M4.69%Aug 14, 2026
Bellevue Group AGReduce 20.50%-$6.04M$23.4M0.49%Aug 14, 2026
Great Point Partners LLCAdded 40.00%+$5.71M$20M3.78%Aug 14, 2026
Adage Capital Partners GP, L.L.C.Reduce 18.60%-$4.57M$20M0.03%Aug 14, 2026
Bain Capital Life Sciences Investors, LLCReduce 14.87%-$4.42M$25.3M1.51%Aug 14, 2026
Ishara Investments LPAdded 370.59%+$3.69M$4.68M3.44%Aug 14, 2026
Opaleye Management Inc.Reduce 26.47%-$3.52M$9.79M0.89%Aug 14, 2026
Longaeva Partners L.P.Sell 100%-$3.44M$00.00%Aug 14, 2026
Siren, L.L.C.Added 12.63%+$2.86M$25.5M0.52%Aug 13, 2026
Silverarc Capital Management, LLCSell 100%-$2.75M$00.00%Aug 13, 2026
Voloridge Investment Management, LLCReduce 45.89%-$1.21M$1.43M0.01%Aug 14, 2026
Rosalind Advisors, Inc.Sell 100%-$1.11M$00.00%Aug 14, 2026
DAFNA Capital Management LLCAdded 152.79%+$1.03M$1.7M0.32%Aug 14, 2026
Ensign Peak Advisors, IncAdded 28.06%+$1M$4.57M0.01%Aug 14, 2026
Ikarian Capital, LLCReduce 25.85%-$857K$2.46M0.26%Aug 14, 2026
Massachusetts Financial Services CoAdded 14.83%+$765K$5.92M0.00%Aug 3, 2026
Wellington Management Group LLPReduce 21.98%-$654K$2.32M0.00%Aug 14, 2026
Diadema Partners LPReduce 79.30%-$602K$157K0.02%Aug 14, 2026
Quarry LPAdded 370.59%+$450K$571K0.05%Aug 14, 2026
Polen Capital Management LLCSell 100%-$389K$00.00%Aug 4, 2026
Jain Global LLCNew Buy+$370K$370K0.00%Aug 14, 2026
Diversified Trust CoNew Buy+$353K$353K0.01%Jul 17, 2026
Axq Capital, LPSell 100%-$322K$00.00%Aug 6, 2026
J. Goldman & Co LPReduce 32.06%-$313K$663K0.02%Aug 14, 2026
ADAR1 Capital Management, LLCSell 100%-$305K$00.00%Aug 14, 2026
Cinctive Capital Management LPReduce 19.69%-$302K$1.23M0.05%Aug 14, 2026
Tetragon Partners GP LtdReduce 3.87%-$286K$7.09M1.12%Aug 13, 2026
BIT Capital GmbHSell 100%-$277K$00.00%Aug 12, 2026
Susquehanna Portfolio Strategies, LLCAdded 9.69%+$199K$2.26M0.04%Aug 14, 2026
Blueshift Asset Management, LLCNew Buy+$190K$190K0.04%Aug 14, 2026
Parkman Healthcare Partners LLCReduce 4.89%-$188K$3.66M0.37%Aug 14, 2026
Rafferty Asset Management, LLCReduce 14.75%-$171K$989K0.00%Aug 14, 2026
Bridgefront Capital, LLCNew Buy+$163K$163K0.04%Aug 14, 2026
Persistent Asset Partners LtdReduce 79.70%-$153K$39K0.01%Aug 7, 2026
Crown Wealth Group, LLCNew Buy+$136K$136K0.03%Jul 21, 2026
Susquehanna Fundamental Investments, LLCNew Buy+$120K$120K0.00%Aug 14, 2026
EntryPoint Capital, LLCReduce 40.13%-$118K$176K0.04%Aug 13, 2026
DNB Asset Management ASReduce 17.46%-$88.3K$418K0.00%Aug 11, 2026
DLD Asset Management, LPNew Buy+$85.7K$85.7K0.01%Aug 13, 2026
Virtus Investment Advisers, LLCAdded 26.61%+$83.4K$397K0.09%Aug 11, 2026
Vontobel Holding Ltd.Sell 100%-$80.4K$00.00%Aug 3, 2026
Kennedy Capital Management LLCReduce 1.53%-$79.5K$5.13M0.09%Aug 14, 2026
Quantinno Capital Management LPNew Buy+$70K$70K0.00%Aug 13, 2026
nVerses Capital, LLCSell 100%-$65.9K$00.00%Aug 4, 2026
Fulcrum Asset Management LLPNew Buy+$56.1K$56.1K0.01%Aug 18, 2026
Fox Run Management, L.L.C.Reduce 38.23%-$38.6K$62.4K0.01%Aug 4, 2026
Sirios Capital Management L PReduce 1.01%-$33K$3.25M0.40%Aug 14, 2026
China Universal Asset Management Co., Ltd.Added 7.62%+$25.1K$354K0.02%Jul 24, 2026
Xponance LLCAdded 32.65%+$20.9K$84.9K0.00%Aug 10, 2026
Profund Advisors LLCReduce 3.79%-$19.7K$500K0.01%Aug 11, 2026
Pacer Advisors, Inc.New Buy+$17K$17K0.00%Aug 13, 2026
Hennion & Walsh Asset Management, Inc.Reduce 0.52%-$15.1K$2.9M0.08%Jul 8, 2026
Canada Pension Plan Investment BoardReduce 5.39%-$12.6K$220K0.00%Aug 14, 2026
State of New Jersey Common Pension Fund DReduce 3.30%-$7.67K$225K0.00%Aug 4, 2026
E Fund Management Co., Ltd.Reduce 4.38%-$6.39K$140K0.00%Aug 11, 2026
BNP PARIBAS ASSET MANAGEMENT Holding S.A.Reduce 14.49%-$1.96K$11.6K0.00%Aug 13, 2026
Lido Advisors, LLCReduce 0.51%-$896$176K0.00%Aug 7, 2026
Balefire, LLCAdded 0.07%+$63$85.7K0.01%Jul 7, 2026
Stone House Investment Management, LLCReduce 20.00%-$23$910.00%Aug 5, 2026
Silver Grove Financial Group, Inc.New Buy+$6$60.00%Aug 13, 2026

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