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Buy Day today: Neutral (56) Mixed market breadth · no major macro event
XBIT

XBiotech Inc

Healthcare · Biotechnology

1.90$ +2.1% vs. previous close Closing price · As of: Nov 2, 2026

Ownership

Ownership Structure

Who owns XBiotech Inc (XBIT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 62.4% of the shares are freely tradable; institutional investors hold 6.8%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 6.8%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 24.3%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 62.4%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 1.3%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 31Mio.

Largest Shareholders

Institutions

Institutions XBIT
Name Stake (%) Shares Change (%) Date
BlackRock Inc 1.05 321,146 +9.6 06/30/2026
Geode Capital Management, LLC 0.70 214,116 -7.3 06/30/2026
Vanguard Capital Management, LLC 0.66 200,182 -0.4 06/30/2026
RBF LLC 0.65 198,501 +0.0 06/30/2026
Morgan Stanley - Brokerage Accounts 0.49 147,880 -10.7 06/30/2026
Bridgeway Capital Management, LLC 0.32 98,447 +0.0 06/30/2026
Vanguard Fiduciary Trust Co 0.30 92,365 +0.9 06/30/2026
Millennium Management LLC 0.26 79,330 -24.8 06/30/2026

Funds

Funds XBIT
Name Stake (%) Shares Change (%) Date
Fidelity Extended Market Index 0.31 94,231 -0.5 08/31/2026
iShares Micro-Cap ETF 0.25 74,972 -0.7 09/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insider holdings

Insider holdings XBIT
Person Role Shares Value As of Type
Simard John Director 4,191,690 7,964,211 $ Oct 26, 2026 direct

Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.

Insiders

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
Oct 26, 2026 Simard John Director Buy 368,524 1.93 711,251

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →

Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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