Annexon, Inc. Common Stock (ANNX)

PHARMACEUTICAL PREPARATIONS

Annexon, Inc. Common Stock (ANNX) is listed on Nasdaq, where it has traded since July 24, 2020.

Listed On
Nasdaq
Listed Since
July 24, 2020
Employees
92
Market Cap
$766M

About Annexon, Inc. Common Stock

Annexon Inc is a clinical-stage biopharmaceutical company developing a pipeline of novel therapies for patients with classical complement-mediated disorders of the body, brain, and eye. Its pipeline is based on its platform technology addressing well-researched classical complement-mediated autoimmune and neurodegenerative disease processes, both of which are triggered by aberrant activation of C1q. Its pipeline of product candidates is designed to block the activity of C1q and the entire classical complement pathway in a broad set of complement-mediated diseases. Its product candidates are ANX005, for autoimmune & neurodegenerative disorders; ANX007, for neurodegenerative ophthalmic disorders; ANX1502, for Oral small molecule; and ANX009, for systemic autoimmune diseases.

Institutional ownership

In 13F filings for the quarter ended June 30, 2026, 207 institutions reported holding ANNX, with 177.8 million shares worth $1.0 billion in aggregate. The largest reported holder was FMR, with 19.5 million shares worth $111.5 million. Of the 5 largest holders listed below, 4 added shares and 1 reduced its position during the quarter.

InstitutionSharesValueQuarter change
FMR19,518,496$111MAdded 83.52%
BlackRock13,539,744$77MAdded 23.78%
Redmile Group11,869,877$68MReduced 18.42%
Vanguard10,452,340$60MAdded 22.83%
State Street9,824,321$56MAdded 41.99%

Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.

Frequently asked questions

What is ANNX?

Annexon, Inc. Common Stock (ANNX) is listed on Nasdaq, where it has traded since July 24, 2020.

Who are the largest institutional holders of ANNX?

In 13F filings for the quarter ended June 30, 2026, the largest reported holders of ANNX were FMR, BlackRock and Redmile Group.

How many institutions own ANNX?

207 institutions reported a position in ANNX for the quarter ended June 30, 2026, worth $1.0 billion in total.

Did institutions buy or sell ANNX last quarter?

Of the 5 largest reported holders, 4 added shares and 1 reduced its position during the quarter. Every reported holder and its change is on the SentiSense ownership page for ANNX.

Every reported institutional holder, plus insider and congressional trades in ANNX, on SentiSense.