Annexon, Inc.

Pharmaceutical Preparations

ANNX Pharmaceuticals & Biotechnology People in Pharmaceuticals & Biotechnology SEC CIK 0001528115 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$746.94M
201,003,269 shares ≈ see note Covers every share class this company has on file.
Insiders on file
2
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$49.09M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
6.57%
insider-held value divided by market capitalisation

What Annexon, Inc. reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
—
No revenue figure: this company’s filings tag profit, but no single revenue total.
Net income
-$206.70M
FY2025 a loss for the period, from this company’s own annual XBRL filings to the SEC
Employees
92
Yahoo Finance
Why the revenue box is blank

US GAAP has no one “total revenue” tag that every filer uses. A bank reports interest and dividend income separately from non-interest income; closed-end funds, blank-cheque companies and some property trusts report the same way; and a company that has not sold anything yet — a drug developer still in trials, for instance — files no revenue at all. Adding two differently defined income lines together would produce a number that appears in no filing, so we publish a revenue figure only where the filing tags one annual, US-dollar revenue fact we can point at. A blank here means no such tag, not that we failed to look.

Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at Annexon, Inc.

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against Annexon, Inc..
Insider Reported role Shares Value Last action
Officers who also sit on the board 1
Douglas Love CEO 351,554 $1.71M S Open-market sale Feb 13, 2025 position reported
Directors 1
Muneer A Satter Board Member 9,728,637 $47.38M P Open-market purchase May 28, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Annexon, Inc. (ANNX) filed a Form 8-K under Item 5.02 (directors and officers) on Aug 10, 2026

Director or officer change filing

The company filed a current report that includes Item 5.02, the item used to report departures, elections or appointments of directors and certain officers, and related pay arrangements. We record only that this filing exists: we have not extracted who left, who joined or whose role changed. Open the filing to read it.

Form 8-K filed Aug 10, 2026, items 5.02, 7.01, 9.01. SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 10 rows we hold, 6 are open-market purchases (P) and 1 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for Annexon, Inc., newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
May 28, 2026 Muneer A Satter P Open-market purchase 613,497 $5.41 $3.32M SEC filing ↗
Nov 21, 2025 Muneer A Satter P Open-market purchase 422,613 $4.28 $1.81M SEC filing ↗
Nov 20, 2025 Muneer A Satter P Open-market purchase 400,000 $4.48 $1.79M SEC filing ↗
Nov 19, 2025 Muneer A Satter P Open-market purchase 500,000 $3.94 $1.97M SEC filing ↗
Nov 18, 2025 Muneer A Satter P Open-market purchase 500,000 $3.18 $1.59M SEC filing ↗
Nov 17, 2025 Muneer A Satter P Open-market purchase 500,000 $2.99 $1.50M SEC filing ↗
Feb 13, 2025 Douglas Love S Open-market sale 5,021 $2.95 $14.8K SEC filing ↗
Jan 6, 2025 Douglas Love M Option exercise or conversion 37,994 $1.41 $53.6K SEC filing ↗
Oct 30, 2024 Douglas Love M Option exercise or conversion 36,050 $1.85 $66.7K SEC filing ↗
Oct 30, 2024 Douglas Love M Option exercise or conversion 78,399 $1.85 $145.0K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: weighted average over the reporting period (us-gaap:WeightedAverageNumberOfSharesOutstandingBasic), taken from Annexon, Inc.’s own filings and multiplied by our closing price. ≈ Not a single-day figure — treat this market cap and its rank as approximate. Full method.

What that share count means

this company did not tag a cover-page share count we could read, so the figure is the average number of shares outstanding across the whole reporting period rather than a count on any single day. If the company issued or bought back stock during the period, the true count today is higher or lower than this.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from Annexon, Inc.’s own SEC filings multiplied by the closing price we hold for the same stock.