X-energy
Develops Xe-100 modular reactors and TRISO-X fuel for electricity and industrial heat.
$17.35
After-hours close+0.13 (+0.75%)
At close$17.22(−6.77%)
Something off on this page? Send us feedback.
Breakdown13F · Form 4
Institutions 827.47%Insiders —
Shares outstanding 21.95M · Float —
Insiders — filings are in another share unit.
The Form 4 positions here total more than the shares outstanding, so the filings and the share count are not on the same basis — usually an unlisted unit behind the listed one — and no insider percentage is shown.
Institutions13F, as of Jun 30, 2026
202 holders · 181.62M shares · 191 new positions · 191 increased · 0 reduced · 0 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Amazon Com Inc | 65.84M | 299.96% | +65.84Mnew | Aug 6, 2026 |
| Segra Capital Management, LLC | 14.48M | 65.95% | +14.48Mnew | Aug 12, 2026 |
| Ares Management LLC | 13.84M | 63.08% | +13.84Mnew | Aug 14, 2026 |
| Ontario Teachers Pension Plan Board | 8.46M | 38.56% | +8.46Mnew | Aug 7, 2026 |
| Van Eck Associates Corp | 7.12M | 32.45% | +7.12Mnew | Aug 14, 2026 |
| Point72 Asset Management, L.P. | 5.69M | 25.92% | +5.69Mnew | Aug 14, 2026 |
| Ark Investment Management LLC | 5.41M | 24.66% | +5.41Mnew | Aug 14, 2026 |
| BlackRock, Inc. | 4.40M | 20.05% | +4.40Mnew | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Kamal Seyed Ghaffarian | 25.00% | 13G | Aug 14, 2026 ↗ | |
| Amazon.com, Inc. | 22.90% | 13G | Aug 6, 2026 ↗ | |
| Ares Partners Holdco LLC | 12.30% | 13G | Aug 12, 2026 ↗ | |
| Gfnci LLC | 5.90% | 13G | May 4, 2026 ↗ | |
| Segra Capital Management, LLC | 5.30% | 13G | Jul 17, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | Filed |
|---|---|---|---|
| Kamal Seyed Ghaffarian | director, 10 percent owner: | 90.84M | Jun 16, 2026 |
| Amazon Com Inc | 10 percent owner | 65.84M | Apr 24, 2026 |
| Ares Partners Holdco LLC | 10 percent owner | 29.86M | Apr 24, 2026 |
| Jeffrey Clay Sell | director, officer: Chief Executive Officer | 3.75M | Apr 24, 2026 |
| Steven L. Miller | officer: See Remarks | 948.7K | Apr 24, 2026 |
| Edward Sonnenschein | director | 850.9K | Apr 29, 2026 |
| Daniel Andrew Gross | officer: See Remarks | 778.5K | Apr 24, 2026 |
| Dinkar S. Bhatia | officer: See Remarks | 574.3K | Apr 24, 2026 |
| Joel Duling | officer: President, TRISO-X | 552.7K | Apr 29, 2026 |
| Dragan Popovic | officer: See Remarks | 545.0K | Apr 24, 2026 |
2 ten-percent owners hold 95.70M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Apr 27, 2026 | Laura Garciaofficer: Chief Accounting Officer | Purchase | 1,200 | $23.00 | 196,822 |
| Apr 27, 2026 | Joel Dulingofficer: President, TRISO-X | Purchase | 100 | $23.00 | 552,699 |
| Apr 27, 2026 | Kathleen W. Hyledirector | Purchase | 10,000 | $23.00 | 127,640 |
| Apr 27, 2026 | Michael J. Wallace Wallacedirector | Purchase | 1,000 | $23.00 | 71,161 |
CongressHouse and Senate disclosures
Not reported.