XBiotech XBIT Insider Ownership

NASDAQ XBIT
$2.18 +0.00 (+0.00%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

6.51Mn Shares

Insider Ownership Statistics

as of 30 Jun, 2026
Insider Ownership
0.082%
0% pp QoQ
Shares Held by Insiders
25.00K
filed for Jun 2026
0.00% QoQ
Shares Outstanding
30.49Mn
30,487,731 shares
Direct Holdings
25.00K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Jun 2026
Insiders Holding Shares
4
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 30 Jun, 2026

As of September 09, 2026, the three largest insider holders of XBIT are John Simard (Chief Executive Officer, 3.87Mn shares), W Thorpe Mckenzie (Director, 2.60Mn shares), Peter Libby (Director, 25.00K shares).

Form 4 Holdings

Insiders Holding XBIT

Insiders 4
Shares held 6.51Mn
Of outstanding 21.34%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 John Simard Chief Executive Officer 3,873,166 0 3,873,166 59.5% 15 Oct, 2021
2 W Thorpe Mckenzie Director, TenPercentOwner 2,597,471 0 2,597,471 39.9% 13 Jan, 2022
3 Peter Libby Director 25,000 0 25,000 0.4% 12 Jul, 2021
4 Donald H. Macadam Director 10,000 0 10,000 0.2% 12 Jul, 2021

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

265 Insider Transactions

Source SEC Form 4
Latest quarter Jun 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
01 Oct, 2025 Thomas Martin Kuendig Director Acquired A 79,115 $0.00 $0 79,115 Direct
01 Oct, 2025 Craig Evan Rademaker Director Acquired A 92,104 $0.00 $0 92,104 Direct
01 Oct, 2025 Tevi David Troy Director Acquired A 56,000 $0.00 $0 56,000 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 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
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
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 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
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
10 Feb, 2023 Sushma Shivaswamy Chief Scientific Officer Acquired A 100,000 $0.00 $0 100,000 Direct
22 Jun, 2022 W Thorpe Mckenzie Director, TenPercentOwner Acquired A 25,000 $0.00 $0 25,000 Direct
22 Jun, 2022 Jan-Paul Waldin 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
22 Jun, 2022 Peter Libby Director Acquired A 25,000 $0.00 $0 25,000 Direct