By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
It has been a mixed year for Annexon, Inc. insiders: $12.4 million bought by four people and $313,000 sold by five, so more buying than selling overall.
Satter Muneer A (Director) made the biggest buy, worth around $3.3 million. That includes C-suite money, which tends to get the most attention.
Big money check: 216 institutions held ANNX as of Q2 2026, and funds were split between buying and selling. 2 quarters in a row of net buying by insiders. Insiders bought in 6 of the last 7 full quarters.
Are insiders buying or selling ANNX stock?
In the last 12 months Annexon, Inc. insiders made open-market purchases worth about $12.4 million and sales worth about $313,000. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in ANNX?
The most recent open-market insider trade in ANNX was filed on 2026-09-25.
How many institutions own ANNX?
216 investment managers reported holding ANNX in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded ANNX?
No congressional trades in ANNX were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).