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Annexon ANNX · USD

Health Care · US listing · 🇺🇸 United States

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4.23

+0.71%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
REDMILE GROUP, LLC14.5m10.07%+4.5m31 Mar 2026
BLACKROCK, INC.10.9m7.57%+2m31 Mar 2026
FMR LLC10.6m7.36%+413.2k31 Mar 2026
Redmile Group, LLC10.1m6.95%+3.8m31 Dec 2025
BVF Partners L.P.9.1m6.31%+2.1m31 Dec 2025
BVF INC/IL8.7m6.02%−429.9k31 Mar 2026
BlackRock Institutional Trust Company, N.A.8.3m5.71%+1.2m31 Dec 2025
The Vanguard Group, Inc.7.8m5.36%+1.9m31 Dec 2025
STATE STREET CORP6.9m4.79%+2.3m31 Mar 2026
Fidelity Management & Research Company LLC6.7m4.62%+1.6m31 Dec 2025
VANGUARD CAPITAL MANAGEMENT LLC6m4.12%+6m31 Mar 2026
Adage Capital Management, L.P.5.5m3.80%+4m31 Dec 2025
BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC5.2m3.61%−36.4k31 Mar 2026
Bellevue Asset Management AG5.2m3.57%—31 Dec 2025
BELLEVUE GROUP AG5.2m3.57%—31 Mar 2026

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
10 Mar 2026 ↗Carson William H.DirectorPurchase8k5.67$45,360
2 Mar 2026 ↗ARTIS DEAN RICHARDEVP & CHIEF SCIENTIFIC OFFICERSale5.9k5.43$32,004
2 Mar 2026 ↗Dananberg JamieCHIEF MEDICAL OFFICERSale5.8k5.43$31,603
2 Mar 2026 ↗Overdorf MichaelEVP & CHIEF BUSINESS OFFICERSale4.3k5.42$23,517
2 Mar 2026 ↗Yednock TedEVP & CHIEF INNOVATION OFFICERSale5.6k5.42$30,168
2 Mar 2026 ↗Lew JenniferEVP & CHIEF FINANCIAL OFFICERSale5.6k5.42$30,162

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

31.6m

-1.2% on the period before. 10.3 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

56.6%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 22 Sept 2026449 shares
  • 8 Sept 20264,715 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.