SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
HornScout

Company profile

ANNX

Annexon, Inc.
NASDAQHealth Care

Latest close: 3.41 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Sep 24, 2026Reported purchase · Form 4Douglas Love, PRESIDENT AND CEO · $99.8KOpen the filing ↗
  2. Aug 13, 2026Notice of sale · Form 144WIGGANS THOMAS G · Former Director · $10.6KOpen the filing ↗
  3. Aug 12, 2026Quarterly report · 10-QFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record48424 flagged findings
Reported transactions (Form 4)80since Feb 16, 2024 · and 17 other holdings
Corporate events (8-K)21since Dec 22, 2020

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-07share offering or dilution eventrecentOpen filing ↗
    “…million of shares of our common stock under an at the market offering program as of the date of this Quarterly Report on Form 10-Q.…”
    +1 more passage from the same document
    • “…Common Stock The Company reserved the following shares of common stock for issuance as follows: March 31, 2026 December 31, 2025…”
  • 2026-05-07regulatory investigationrecentOpen filing ↗
    “…penalties; • suspend or withdraw regulatory approval; • suspend any of our clinical trials; • refuse to approve pending…”
  • 2026-05-07Department of Justice inquiryrecentOpen filing ↗
    “…allegedly violating the EU GDPR’s cross-border data transfer limitations. Other jurisdictions (including the US) have adopted or…”
  • 2026-03-31share offering or dilution eventrecentOpen filing ↗
    “…price of $5.00 per share, which was the last reported sale price of our common stock on the Nasdaq Global Select Market on March 27,…”
    +1 more passage from the same document
    • “…protection; • estimates of our expenses, future revenue, capital requirements, our needs for additional financing and our ability to…”
  • 2026-03-31capital return (buybacks/dividends)recentOpen filing ↗
    “…may offer and sell any combination of shares of our common stock, shares of our preferred stock, debt securities, warrants and…”
  • 2026-03-30share offering or dilution eventrecentOpen filing ↗
    “…million of shares of our common stock under an at the market offering program as of the date of this Annual Report on Form 10-K.…”
    +1 more passage from the same document
    • “…42,293,577 2026 At the Market (ATM) Program Pursuant to the 2026 Sales Agreement, we may offer and sell, from time to time…”
  • 2026-03-30regulatory investigationrecentOpen filing ↗
    “…penalties; • suspend or withdraw regulatory approval; • suspend any of our clinical trials; • refuse to approve pending…”
  • 2026-03-30Department of Justice inquiryrecentOpen filing ↗
    “…allegedly violating the EU GDPR’s cross-border data transfer limitations. Other jurisdictions (including the US) have adopted or…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 484)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Sep 25, 26Form 4 ↗Insider transaction
  • Aug 13, 26Form 144 ↗Notice of proposed sale
  • Aug 12, 26Form 4 ↗Insider transaction
  • Aug 12, 26Form 3 ↗Insider transaction
  • Aug 12, 2610-Q ↗Quarterly report
  • Aug 12, 268-K ↗Current report · Results · Other events
  • Aug 10, 268-K ↗Current report · A senior executive left or was appointed
  • Aug 7, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 6.0% · event on Jun 30, 26
  • Aug 6, 268-K ↗Current report · Other events
  • Jul 30, 268-K ↗Current report · Entered a material agreement
  • Jul 27, 26SCHEDULE 13G/A ↗Passive stake · BlackRock, Inc. · 8.0% · event on Jun 30, 26 · amendment
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Jul 8, 26SCHEDULE 13G/A ↗Passive stake · Redmile Group, LLC · 9.9% · event on Jul 1, 26 · amendment
  • Jul 8, 26SCHEDULE 13G/A ↗Passive stake · FMR LLC · 11.9% · event on Jun 30, 26 · amendment
  • Insider transaction · 7 Form 4 filingsshow all 7hide
  • Jun 12, 268-K ↗Current report · Shareholder vote results
  • May 29, 26Form 4 ↗Insider transaction
  • May 15, 26SCHEDULE 13G/A ↗Passive stake · BVF PARTNERS L P/IL · 5.4% · event on Mar 31, 26 · amendment

484 filings on record, the oldest from Oct 16, 19.

Listing the 25 most recent filings of the 484 on record.

8-Ks, explained

Structure11Governance10
  • Aug 10, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jul 30, 26StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Feb 17, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Nov 14, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Jan 10, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Structure3 material agreements entered2023 – 2024show all 3hide
    • Jun 7, 24StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Dec 22, 23StructureEntered a material agreement+2 more in the same filing8-K/A 1.01 ↗
    • Dec 21, 23StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Jan 6, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jul 8, 22StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Governance6 senior executive changes2021 – 2022show all 6hide
    • Feb 3, 22GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Jan 20, 22GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Oct 4, 21GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Aug 16, 21GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Mar 1, 21GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Feb 8, 21GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Dec 22, 20StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13D: stake and stated purpose

Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • FMR LLC11.9%Jun 30, 26SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 3 earlier filings
  • Redmile Group, LLC9.9%Jul 1, 26SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • BlackRock, Inc.8.0%Jun 30, 26SCHEDULE 13G/A ↗1 earlier filing
  • STATE STREET CORPORATION6.0%Jun 30, 26SCHEDULE 13G ↗
  • Logos Global Management LP6.0%Apr 21, 25SCHEDULE 13G ↗5 co-filers on this document — the figure is the largest single stake, not their sum.
show 2 more holdershide
  • BVF PARTNERS L P/IL5.4%Mar 31, 26SCHEDULE 13G/A ↗10 co-filers on this document — the figure is the largest single stake, not their sum.
  • The Vanguard Group5.3%Sep 30, 25SCHEDULE 13G ↗1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Aug 13, WIGGANS THOMAS G filed notice of intent to sell up to $11K.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

No sale of theirs is on record yet in Form 4; the 90-day window is still open.

View notice (Form 144) ↗+2 more recent notices

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Sep 24, 26Buy$100KDouglas LovePRESIDENT AND CEO↗
  • May 28, 26Buy$3.3MMuneer A Satter↗
  • May 11, 26Buy$46KWilliam H. Carson↗
  • Apr 10, 26Buy$50KWilliam H. Carson↗
  • Mar 10, 26Buy$45KWilliam H. Carson↗
  • Mar 2, 26Sell$30KJennifer LewEVP & CHIEF FINANCIAL OFFICER↗
  • Mar 2, 26Sell$32KJamie DananbergCHIEF MEDICAL OFFICER↗
  • Mar 2, 26Sell$24KMichael OverdorfEVP & CHIEF BUSINESS OFFICER↗
  • Mar 2, 26Sell$30KTed YednockEVP & CHIEF INNOVATION OFFICER↗
  • Mar 2, 26Sell$32KDEAN RICHARD ARTISEVP & CHIEF SCIENTIFIC OFFICER↗
  • Feb 18, 26Sell$40KJennifer LewEVP & CHIEF FINANCIAL OFFICER↗
  • Feb 18, 26Sell$27KJamie DananbergCHIEF MEDICAL OFFICER↗

There are 22 more transactions in this stretch.

Stock compensation, tax and giftsshow the 6 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Jun 11, 26Compensation$57KTed YednockEVP & CHIEF INNOVATION OFFICER↗
  • Feb 19, 26Compensationamount n/aJennifer LewEVP & CHIEF FINANCIAL OFFICER↗
  • Feb 19, 26Compensationamount n/aJamie DananbergCHIEF MEDICAL OFFICER↗
  • Feb 19, 26Compensationamount n/aMichael OverdorfEVP & CHIEF BUSINESS OFFICER↗
  • Feb 19, 26Compensationamount n/aTed YednockEVP & CHIEF INNOVATION OFFICER↗
  • Feb 19, 26Compensationamount n/aDEAN RICHARD ARTISEVP & CHIEF SCIENTIFIC OFFICER↗

The full record holds 99 transactions and goes back to Jan 6, 23.

Its sector and its market

Annexon, Inc. among Health Care companies

The profile shows what is on record. Context and Radar place the company among those of its sector and region.

With an account you also get

  • The four engines — growth, trend, risk and context — each with its word and its score.
  • The risk band and the sector phase.
  • The company's fundamentals and accounts.
  • Watchlist: your list of companies, with the «since you follow it» figure.

The research continues

The profile tells the story. The market sets the scene.

From Annexon, Inc., the path continues in the other areas. Each one is shown with its own example, named in its step.

  1. Place it in its market

    Seven layers of its region's market — rates, credit, stress, liquidity, regime, breadth and sectors — with historical precedents. Public example: Apple and ASML.

    See how Context works →
  2. See what deserves a closer look

    Every morning Radar screens the covered companies through a lens and explains why each candidate made the list. Public example: the lists from Aug 11, 2026.

    See how Radar works →
  3. Keep the why

    Follow Annexon, Inc. in the Watchlist and review what changed since you added it: context, notices and filings. Written theses are coming soon. Public example: Apple.

    See an example review →

Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
484 documents on file, from Oct 16, 2019 to Sep 25, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

Start at your own pace

Explore first. Go deeper with access.

Every company's public profile is open. The full reading — context, Radar, watchlist — is inside, in an invitation-only beta.

Compare plans →
  • No account

    This profile for every company we cover: closing prices with the record's facts on the curve, the SEC file in plain language, insider trades included, and links to its sector and exchange.

  • Pro

    What matters today, with its reason, is free with an account. Pro adds, in the profile, each company's notices and their explanation and the analysis of its insiders; in Radar, all the lenses, which notice each candidate carries, filters by notice type and «no dilution», and the cycle cohort filter; and in Watchlist, more companies and notice changes with their reason.

  • Pro+

    Adds the Lab: test a hypothesis on comparable cohorts before reusing it; and bring your lenses to Radar.

Are the prices real time?

No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

Before forming a view on a company,
read what is on record.

One close per session. The record in plain language. Its sector and its market one link away. Your judgment when deciding.

Access by invitation while the beta lasts. Not advice: the profile shows what is on record; it does not recommend.