How many insider trades does FilingIQ track for ANNX?

FilingIQ tracks 173 Form 4 insider transactions for ANNX (Annexon, Inc.), covering filings from Jul 28, 2020 onwards. 24 of those were filed in the last 90 days.

Are ANNX insiders net buyers or net sellers?

Across the full Form 4 history for ANNX, 35 transactions (20%) were open-market purchases and 70 (40%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does ANNX insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is ANNX in?

Annexon, Inc. (ANNX) is classified in the Healthcare sector, specifically Biotechnology, with a current market capitalisation of $730.37M.

ANNX insider trading

NasdaqGS Healthcare

Annexon, Inc. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

173

Last 90 days

Buys / sells

20% / 40%

Market cap

$730.37M

About Annexon, Inc.

Annexon, Inc., a clinical-stage biopharmaceutical company, discovers and develops medicines for treating inflammatory-related diseases. The company's lead candidate is ANX005, an investigational full-length monoclonal antibody, which is in Phase 3 clinical trial for the treatment of patients with guillain-barré syndrome; completed Phase II clinical trial for treating Huntington's disease; and in Phase 2a clinical trial for the treatment of amyotrophic lateral sclerosis. The company is also developing ANX007, an antigen-binding fragment (Fab) that is in Phase 3 program for the treatment of patients with geographic atrophy; and ANX1502, a novel oral small molecule inhibitor, which is in Phase 1 clinical trials for autoimmune indications. In addition, it develops ANX009, a C1q-blocking Fab that is in Phase I clinical trial for treating patients with lupus nephritis. The company was incorporated in 2011 and is headquartered in Brisbane, California.

Company website: www.annexonbio.com

ANNX insider activity at a glance

FilingIQ has scored 173 insider transactions for ANNX since Jul 28, 2020. The most recent filing in our index is dated May 11, 2026.

Across the full history, 35 open-market purchases and 70 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on ANNX insider trades is 57.9/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live ANNX trades on FilingIQ Raw filings on SEC EDGAR

Latest ANNX Form 4 filings

Lew Jennifer EVP & CHIEF FINANCIAL OFFICER

S Mar 2, 2026

Lew Jennifer EVP & CHIEF FINANCIAL OFFICER

S Feb 18, 2026

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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Top insiders trading ANNX

Lew Jennifer

4 trades · score 72.5

13F funds holding ANNX

VR Adviser, LLC

$19.90M · 3.1% of AUM

Logos Global Management LP

$16.17M · 1.3% of AUM

Opaleye Management Inc.

$13.05M · 1.7% of AUM

TFG Asset Management GP Ltd

$7.18M · 1.8% of AUM

Frequently asked

How many insider trades does FilingIQ track for ANNX?: FilingIQ tracks 173 Form 4 insider transactions for ANNX (Annexon, Inc.), covering filings from Jul 28, 2020 onwards. 24 of those were filed in the last 90 days.
Are ANNX insiders net buyers or net sellers?: Across the full Form 4 history for ANNX, 35 transactions (20%) were open-market purchases and 70 (40%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does ANNX insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is ANNX in?: Annexon, Inc. (ANNX) is classified in the Healthcare sector, specifically Biotechnology, with a current market capitalisation of $730.37M.

Methodology & sources

Every ANNX insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.