| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $711,251 | 1 | 100 |
Sells | $0 | 0 | 0 |
| SIMARD JOHN | 1 | $711,251 | 0 | $0 | $711,251 |
XBiotech Inc. is a biopharmaceutical firm specializing in the discovery, development, and commercialization of True Human monoclonal antibodies. Their primary focus involves building a robust pipeline of product candidates aimed at combating both inflammatory and infectious diseases. Furthermore, the company is advancing interleukin-1 alpha-based therapies, which are designed to address a broad spectrum of medical conditions such as cancer, stroke, heart attack, and arthritis. Interleukin-1 alpha itself plays a crucial role in biological …
Over the last 12 months, insiders at XBiotech Inc. have bought $711,251 and sold $0 worth of XBiotech Inc. stock.
On average, over the past 5 years, insiders at XBiotech Inc. have bought $711,251 and sold $0 worth of stock each year.
Highest buying activity among insiders over the last 12 months: SIMARD JOHN () — $711,251.
The last purchase of 368,524 shares for transaction amount of $711,251 was made by SIMARD JOHN () on 2026‑10‑26.
| 2026-10-26 | SIMARD JOHN | 368,524 1.261% | $1.93 | $711,251 | +4.32% | |||
| 2021-10-18 | Sale | SIMARD JOHN | Chief Executive Officer | 33,000 0.1105% | $13.07 | $431,254 | -36.91% | |
| 2021-10-15 | Sale | SIMARD JOHN | Chief Executive Officer | 17,000 0.0571% | $13.32 | $226,471 | -36.94% | |
| 2021-10-14 | Sale | SIMARD JOHN | Chief Executive Officer | 21,125 0.0691% | $12.90 | $272,523 | -36.18% | |
| 2021-10-13 | Sale | SIMARD JOHN | Chief Executive Officer | 10,875 0.0359% | $12.83 | $139,526 | -34.52% | |
| 2021-10-12 | Sale | SIMARD JOHN | Chief Executive Officer | 18,000 0.0599% | $12.77 | $229,939 | -33.18% | |
| 2021-10-07 | Sale | SIMARD JOHN | Chief Executive Officer | 39,286 0.1303% | $12.45 | $489,111 | -30.34% | |
| 2021-10-06 | Sale | SIMARD JOHN | Chief Executive Officer | 10,714 0.0358% | $12.53 | $134,259 | -30.02% | |
| 2021-10-05 | Sale | SIMARD JOHN | Chief Executive Officer | 14,218 0.0484% | $12.66 | $180,058 | -28.89% | |
| 2021-10-04 | Sale | SIMARD JOHN | Chief Executive Officer | 23,681 0.0794% | $13.08 | $309,864 | -31.60% | |
| 2021-10-01 | Sale | SIMARD JOHN | Chief Executive Officer | 19,684 0.0655% | $13.23 | $260,488 | -32.70% | |
| 2021-09-30 | Sale | SIMARD JOHN | Chief Executive Officer | 18,558 0.0623% | $13.07 | $242,464 | -30.97% | |
| 2021-09-29 | Sale | SIMARD JOHN | Chief Executive Officer | 16,396 0.055% | $13.41 | $219,802 | -31.85% | |
| 2021-09-28 | Sale | SIMARD JOHN | Chief Executive Officer | 6,263 0.0211% | $14.27 | $89,364 | -35.59% | |
| 2021-09-27 | Sale | SIMARD JOHN | Chief Executive Officer | 29,890 0.098% | $14.81 | $442,790 | -39.59% | |
| 2021-09-24 | Sale | SIMARD JOHN | Chief Executive Officer | 11,418 0.0381% | $14.49 | $165,409 | -37.08% | |
| 2021-09-23 | Sale | SIMARD JOHN | Chief Executive Officer | 9,892 0.0328% | $14.68 | $145,220 | -37.94% | |
| 2021-09-22 | Sale | SIMARD JOHN | Chief Executive Officer | 19,669 0.0657% | $15.14 | $297,757 | -38.92% | |
| 2021-09-21 | Sale | SIMARD JOHN | Chief Executive Officer | 16,860 0.0551% | $15.24 | $256,913 | -40.51% | |
| 2021-09-20 | Sale | SIMARD JOHN | Chief Executive Officer | 13,471 0.0443% | $15.06 | $202,914 | -39.41% |
| SIMARD JOHN | 4191690 13.7488% | $8.34M | 1 | 20 | ||
| RENNES FONDATION | 10 percent owner | 5110282 16.7618% | $10.17M | 10 | 0 | |
| MCKENZIE W THORPE | 2560964 8.4% | $5.1M | 7 | 20 | +57.41% |
$5,831,763 | 118 | -33.78% | $66.68M | |
$17,525,882 | 60 | 5.22% | $64.7M | |
$103,288,323 | 51 | 4.78% | $56.52M | |
$19,705,388 | 47 | 86.26% | $67.15M | |
$909,129 | 37 | 42.19% | $67.23M |
| Increased Positions | 12 | +18.46% | 329,058 | +11.11% |
| Decreased Positions | 26 | -40% | 972,904 | -32.83% |
| New Positions | 4 | New | 222,535 | New |
| Sold Out Positions | 7 | Sold Out | 69,028 | Sold Out |
| Total Postitions | 51 | -21.54% | 2M | -21.73% |
| Vanguard Group Inc | $1,950.00 | 2.73% | 819,239 | -126,166 | -13.35% | 2025-09-30 |
| Millennium Management Llc | $991.00 | 1.39% | 416,344 | -135,003 | -24.49% | 2025-09-30 |
| Blackrock, Inc. | $720.00 | 1.01% | 302,386 | -71,220 | -19.06% | 2025-09-30 |
| Geode Capital Management, Llc | $528.00 | 0.74% | 221,863 | +1,184 | +0.54% | 2025-09-30 |
| Rbf Capital, Llc | $476.00 | 0.67% | 200,000 | 0 | 0% | 2025-09-30 |
| Morgan Stanley | $289.00 | 0.41% | 121,453 | +35,648 | +41.55% | 2025-09-30 |
| Northern Trust Corp | $194.00 | 0.27% | 81,624 | -11,531 | -12.38% | 2025-09-30 |
| State Street Corp | $160.00 | 0.22% | 67,306 | -1,220 | -1.78% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $153.00 | 0.21% | 64,316 | -6,649 | -9.37% | 2025-09-30 |
| Squarepoint Ops Llc | $148.00 | 0.21% | 62,159 | +22,383 | +56.27% | 2025-09-30 |