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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.

Q2 2025 vs. Q1 2025

How the institutions holding Annexon, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of ANNX: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders148129−19
Shares99.8M99.7M−42.6K (0.0%)
Value$192.1M$238.7M+$46.6M (+24.2%)

New holders (18)

Institutions that held Annexon, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to ANNX in Q2 2025
InstitutionSharesValue% of portfolio
Susquehanna Portfolio Strategies, LLC207,715$498.5K0.01%
Two Sigma Investments, LP201,160$482.8K0.00%
Bridgeway Capital Management, LLC97,800$234.7K0.01%
Advisor Group Holdings, Inc.80,375$192.9K0.00%
Natixis77,100$185.0K0.00%
Citizens Financial Group Inc35,000$84.0K0.00%
Virtu Financial LLC30,597$73.0K0.00%
Marshall Wace, LLP29,989$72.0K0.00%
Los Angeles Capital Management LLC20,196$48.5K0.00%
Engineers Gate Manager LP13,401$32.2K0.00%
JustInvest LLC12,284$29.5K0.00%
49 Wealth Management, LLC12,083$29.0K0.00%
Matauro, LLC11,084$26.6K0.00%
Simplex Trading, LLC6,673$16.0K0.00%
Point72 (DIFC) Ltd1,964$4.71K0.00%
Essential Partners LLC202$4850.00%
Prestige Wealth Management Group LLC185$4440.00%
Allworth Financial LP45$1080.00%

Sold out (37)

Institutions that held Annexon, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of ANNX in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Wellington Management Group LLP356,480$688.0K
Syon Capital LLC144,485$278.9K
Swiss National Bank135,000$260.6K
Squarepoint Ops LLC132,997$256.7K
Balyasny Asset Management LLC96,752$186.7K
State of Wisconsin Investment Board81,636$157.6K
HRT Financial LP78,100$150.0K
California State Teachers Retirement System66,375$128.1K
Y-Intercept (Hong Kong) Ltd65,918$127.2K
SG Americas Securities, LLC63,161$122.0K
Jain Global LLC61,276$118.3K
XTX Topco Ltd58,130$112.2K
EntryPoint Capital, LLC53,271$102.8K
Franklin Resources Inc49,123$94.8K
Corebridge Financial, Inc.47,838$92.3K
Point72 Asset Management, L.P.45,714$88.2K
Susquehanna Fundamental Investments, LLC41,011$79.2K
Janus Henderson Group PLC34,500$77.8K
Shay Capital LLC35,162$67.9K
Zurcher Kantonalbank (Zurich Cantonalbank)34,026$65.7K
Alpine Global Management, LLC25,145$48.5K
Virginia Retirement Systems Et Al20,600$39.8K
Arizona State Retirement System19,875$38.4K
Teacher Retirement System of Texas19,462$37.6K
KLP Kapitalforvaltning AS19,100$36.9K
Quantinno Capital Management LP17,770$34.3K
Great West Life Assurance Co14,935$29.0K
Axq Capital, LP14,117$27.2K
LPL Financial LLC12,926$24.9K
Catalyst Funds Management Pty Ltd11,760$22.7K
Gsa Capital Partners LLP11,425$22.0K
Dynamic Technology Lab Private Ltd10,947$21.0K
Private Wealth Management Group, LLC654$1.26K
CIBC Private Wealth Group, LLC670$1.03K
Group One Trading, L.P.438$845
Parkside Financial Bank & Trust140$273
True Wealth Design, LLC17$33