XBiotech XBIT Insider Ownership

NASDAQ XBIT
$1.91 +0.04 (+2.14%)
At close: Nov 9, 2026 · 4:00 PM EST

Insider Holdings by Owner

6.79Mn Shares
John Simard4.19Mn61.7%
W Thorpe Mckenzie2.60Mn38.3%

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
12.70%
■0% pp QoQ
Shares Held by Insiders
3.87Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
30.49Mn
30,487,731 shares
Direct Holdings
3.87Mn
Indirect: 0
Net Open-Market Trades
0
no open-market trades in Sep 2026
Insiders Holding Shares
2
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Open-Market Insider Trades

Bought Sold
Latest quarter —
Net over range —
Net-buying quarters —

Insider Ownership Summary

Over the trailing 12 months, XBIT insiders bought $711,251 worth of shares (368.52K shares) in open-market trades, with no open-market sales.

Form 4 Holdings

Insiders Holding XBIT

Insiders 2
Shares held 6.79Mn
Of outstanding 22.27%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 John Simard Chief Executive Officer 4,191,690 0 4,191,690 61.7% 28 Oct, 2026
2 W Thorpe Mckenzie Director, TenPercentOwner 2,597,471 0 2,597,471 38.3% 13 Jan, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

267 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
26 Oct, 2026 John Simard Director, TenPercentOwner Acquired P 368,524 $1.93 $711.25K 4,191,690 Direct
26 Oct, 2026 Jan-Paul Simard Co Chief Executive Officer Acquired A 2,000,000 $0.00 $0 2,000,000 Direct
01 Oct, 2025 Thomas Martin Kuendig Director Acquired A 79,115 $0.00 $0 79,115 Direct
01 Oct, 2025 Tevi David Troy Director Acquired A 56,000 $0.00 $0 56,000 Direct
01 Oct, 2025 Craig Evan Rademaker Director Acquired A 92,104 $0.00 $0 92,104 Direct
01 Oct, 2025 David Spencer Soffer Director Acquired A 51,000 $0.00 $0 51,000 Direct
17 Mar, 2025 John Simard Chief Executive Officer Acquired A 1,026,228 $0.00 $0 1,896,609 Direct
31 Jan, 2025 John Simard Chief Executive Officer Disposed J 2,470,355 $10,000,000.00 $24.70Tn 870,381 Direct
20 Jun, 2024 Peter Libby Director Acquired A 37,500 $0.00 $0 37,500 Direct
20 Jun, 2024 Jan-Paul Waldin Director Acquired A 37,500 $0.00 $0 37,500 Direct
20 Jun, 2024 Donald H. Macadam Director Acquired A 37,500 $0.00 $0 37,500 Direct
20 Jun, 2024 W Thorpe Mckenzie Director, TenPercentOwner Acquired A 37,500 $0.00 $0 37,500 Direct
03 Jan, 2024 John Simard Chief Executive Officer Acquired P 2,470,355 $10,000,000.00 $24.70Tn 3,840,736 Direct
23 Jun, 2023 Peter Libby Director Acquired A 25,000 $0.00 $0 25,000 Direct
23 Jun, 2023 Donald H. Macadam Director Acquired A 25,000 $0.00 $0 25,000 Direct
23 Jun, 2023 Jan-Paul Waldin Director Acquired A 25,000 $0.00 $0 25,000 Direct
23 Jun, 2023 W Thorpe Mckenzie Director, TenPercentOwner Acquired A 25,000 $0.00 $0 25,000 Direct
10 Feb, 2023 Sushma Shivaswamy Chief Scientific Officer Acquired A 100,000 $0.00 $0 100,000 Direct
22 Jun, 2022 Peter Libby Director Acquired A 25,000 $0.00 $0 25,000 Direct
22 Jun, 2022 Donald H. Macadam Director Acquired A 25,000 $0.00 $0 25,000 Direct