Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

X-Energy, Inc.

CIK 0002088896XE· quarter ending 2026-06-30

Shares outstanding

406,366,108

as of 2026-08-10 · 10-Q cover page, filed 2026-08-13

Held by 13F filers

181,712,241

63.2% of Common Class A

Holders

190

+190 vs 2026-03-31 · 190 new, 0 exited

Value

$3.3B

shares +— vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-10)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common Class A	XE · NASDAQ	287,458,734	181,712,241	63.2%	190	98386P102
Common Class B	not listed	118,907,374	—	—

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	98386P102	Stock	190	181,712,241	287,458,734	63.2%	$3.3B	5 call / 6 put	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (190 of 190 · 98386P102)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	AMAZON COM INC	65,836,948	22.90%	$1.2B	NEW
2	SEGRA CAPITAL MANAGEMENT, LLC	14,475,734	5.04%	$265.8M	NEW
3	ARES MANAGEMENT LLC	13,844,585	4.82%	$254.2M	NEW
4	ONTARIO TEACHERS PENSION PLAN BOARD	8,464,443	2.94%	$155.4M	NEW
5	VAN ECK ASSOCIATES CORP	7,121,895	2.48%	$130.8M	NEW
6	Point72 Asset Management, L.P.	5,689,086	1.98%	$104.5M	NEW
7	ARK Investment Management LLC	5,411,846	1.88%	$99.4M	NEW
8	BlackRock, Inc.	4,399,867	1.53%	$80.8M	NEW
9	JANE STREET GROUP, LLC	3,855,908	1.34%	$70.8M	NEW
10	DOW CHEMICAL CO /DE/	3,792,499	1.32%	$69.6M	NEW
11	D. E. Shaw & Co., Inc.	3,776,201	1.31%	$69.3M	NEW
12	CITADEL ADVISORS LLC	2,406,075	0.84%	$44.2M	NEW
13	Hood River Capital Management LLC	2,335,437	0.81%	$42.9M	NEW
14	PRICE T ROWE ASSOCIATES INC /MD/	2,320,074	0.81%	$42.6M	NEW
15	SOROS FUND MANAGEMENT LLC	2,245,454	0.78%	$41.2M	NEW
16	UBS Group AG	2,045,264	0.71%	$37.6M	NEW
17	VANGUARD CAPITAL MANAGEMENT LLC	1,843,232	0.64%	$33.8M	NEW
18	VANGUARD PORTFOLIO MANAGEMENT LLC	1,512,498	0.53%	$27.8M	NEW
19	DG Capital Management, LLC	1,512,339	0.53%	$27.8M	NEW
20	BNP PARIBAS ASSET MANAGEMENT Holding S.A.	1,502,035	0.52%	$27.6M	NEW
21	Amova Asset Management Americas, Inc.	1,454,875	0.51%	$26.7M	NEW
22	Sumitomo Mitsui Trust Group, Inc.	1,448,579	0.50%	$26.6M	NEW
23	Zimmer Partners, LP	1,244,674	0.43%	$22.9M	NEW
24	Two Seas Capital LP	1,000,000	0.35%	$18.4M	NEW
25	ALKEON CAPITAL MANAGEMENT LLC	1,000,000	0.35%	$18.4M	NEW
26	GEODE CAPITAL MANAGEMENT, LLC	949,971	0.33%	$17.4M	NEW
27	Alyeska Investment Group, L.P.	873,847	0.30%	$16.0M	NEW
28	WELLINGTON MANAGEMENT GROUP LLP	817,587	0.28%	$15.0M	NEW
29	ExodusPoint Capital Management, LP	745,137	0.26%	$13.7M	NEW
30	AMERIPRISE FINANCIAL INC	733,879	0.26%	$13.5M	NEW
31	VIKING GLOBAL INVESTORS LP	714,286	0.25%	$13.1M	NEW
32	BAMCO INC /NY/	695,538	0.24%	$12.8M	NEW
33	MORGAN STANLEY	687,486	0.24%	$12.6M	NEW
34	Tairen Capital Ltd	636,000	0.22%	$11.7M	NEW
35	FMR LLC	627,400	0.22%	$11.5M	NEW
36	SUSQUEHANNA INTERNATIONAL GROUP, LLP	590,765	0.21%	$10.8M	NEW
37	SEVEN GRAND MANAGERS, LLC	500,000	0.17%	$9.2M	NEW
38	STATE STREET CORP	464,138	0.16%	$8.5M	NEW
39	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	430,634	0.15%	$7.9M	NEW
40	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	418,976	0.15%	$7.7M	NEW
41	BlueCrest Capital Management Ltd	405,000	0.14%	$7.4M	NEW
42	Yaupon Capital Management LP	400,000	0.14%	$7.3M	NEW
43	Ghisallo Capital Management LLC	400,000	0.14%	$7.3M	NEW
44	NORGES BANK	400,000	0.14%	$7.3M	NEW
45	Aventail Capital Group, LP	381,198	0.13%	$7.0M	NEW
46	Nepsis Inc.	370,212	0.13%	$6.8M	NEW
47	Burkehill Global Management, LP	325,000	0.11%	$6.0M	NEW
48	Blackstone Inc.	325,000	0.11%	$6.0M	NEW
49	Squarepoint Ops LLC	325,000	0.11%	$6.0M	NEW
50	Hudson Bay Capital Management LP	320,000	0.11%	$5.9M	NEW
51	GOLDMAN SACHS GROUP INC	303,328	0.11%	$5.6M	NEW
52	Covalis Capital LLP	301,185	0.10%	$5.5M	NEW
53	REAVES W H & CO INC	300,000	0.10%	$5.5M	NEW
54	IQ EQ FUND MANAGEMENT (IRELAND) Ltd	293,276	0.10%	$5.4M	NEW
55	VANGUARD FIDUCIARY TRUST CO	288,274	0.10%	$5.3M	NEW
56	BNP PARIBAS FINANCIAL MARKETS	270,988	0.09%	$5.0M	NEW
57	LMR Partners LLP	250,588	0.09%	$4.6M	NEW
58	Merewether Investment Management, LP	224,312	0.08%	$4.1M	NEW
59	Thiel Macro LLC	200,000	0.07%	$3.7M	NEW
60	Freestone Grove Partners LP	191,750	0.07%	$3.5M	NEW
61	NORTHERN TRUST CORP	183,567	0.06%	$3.4M	NEW
62	Defiance ETFs, LLC	183,203	0.06%	$3.4M	NEW
63	Tidal Investments LLC	182,111	0.06%	$3.3M	NEW
64	Sourcerock Group LLC	179,848	0.06%	$3.3M	NEW
65	Davidson Kempner Capital Management LP	177,500	0.06%	$3.3M	NEW
66	KEYSTONE INVESTORS PTE LTD	174,377	0.06%	$3.2M	NEW
67	WESTWOOD HOLDINGS GROUP INC	171,140	0.06%	$3.1M	NEW
68	Woodline Partners LP	168,809	0.06%	$3.1M	NEW
69	READYSTATE ASSET MANAGEMENT LP	160,285	0.06%	$2.9M	NEW
70	Jain Global LLC	159,625	0.06%	$2.9M	NEW
71	Weiss Asset Management LP	149,539	0.05%	$2.7M	NEW
72	Vennlight Capital Management, LP	148,843	0.05%	$2.7M	NEW
73	Mirae Asset Global Investments Co., Ltd.	138,650	0.05%	$2.5M	NEW
74	BANK OF AMERICA CORP /DE/	132,899	0.05%	$2.4M	NEW
75	Walleye Capital LLC	129,046	0.04%	$2.4M	NEW
76	Baltimore-Washington Financial Advisors, Inc.	125,010	0.04%	$2.3M	NEW
77	TUDOR INVESTMENT CORP ET AL	121,676	0.04%	$2.2M	NEW
78	Invesco Ltd.	103,703	0.04%	$1.9M	NEW
79	Shay Capital LLC	100,000	0.03%	$1.8M	NEW
80	LuminArx Capital Management LP	100,000	0.03%	$1.8M	NEW
81	Centiva Capital, LP	100,000	0.03%	$1.8M	NEW
82	BW Gestao de Investimentos Ltda.	99,959	0.03%	$1.8M	NEW
83	COHEN & STEERS, INC.	99,519	0.03%	$1.8M	NEW
84	WINTON GROUP Ltd	89,575	0.03%	$1.6M	NEW
85	CastleKnight Management LP	78,400	0.03%	$1.4M	NEW
86	Bank of New York Mellon Corp	68,126	0.02%	$1.3M	NEW
87	New Age Alpha Advisors, LLC	60,000	0.02%	$1.1M	NEW
88	PORTLAND INVESTMENT COUNSEL INC.	60,000	0.02%	$1.1M	NEW
89	CAZ INVESTMENTS LP	60,000	0.02%	$1.1M	NEW
90	BARCLAYS PLC	54,410	0.02%	$999K	NEW
91	Anson Funds Management LP	50,000	0.02%	$918K	NEW
92	VIKING FUND MANAGEMENT LLC	50,000	0.02%	$918K	NEW
93	Balyasny Asset Management L.P.	49,596	0.02%	$911K	NEW
94	PRELUDE CAPITAL MANAGEMENT, LLC	48,206	0.02%	$885K	NEW
95	SEI INVESTMENTS CO	46,938	0.02%	$862K	NEW
96	Cambridge Investment Research Advisors, Inc.	45,236	0.02%	$830K	NEW
97	Steward Partners Investment Advisory, LLC	42,583	0.01%	$782K	NEW
98	LPL Financial LLC	40,076	0.01%	$736K	NEW
99	JPMORGAN CHASE & CO	38,853	0.01%	$770K	NEW
100	DEUTSCHE BANK AG\	38,534	0.01%	$707K	NEW
101	RAYMOND JAMES FINANCIAL INC	37,363	0.01%	$686K	NEW
102	SummitTX Capital, L.P.	33,633	0.01%	$618K	NEW
103	Nuveen, LLC	32,525	0.01%	$597K	NEW
104	IMC-Chicago, LLC	32,442	0.01%	$596K	NEW
105	RHUMBLINE ADVISERS	30,714	0.01%	$564K	NEW
106	OSAIC HOLDINGS, INC.	27,550	0.01%	$506K	NEW
107	SIMPLEX TRADING, LLC	24,941	0.01%	$458K	NEW
108	MANUFACTURERS LIFE INSURANCE COMPANY, THE	23,803	0.01%	$437K	NEW
109	NEW YORK STATE COMMON RETIREMENT FUND	22,400	0.01%	$411K	NEW
110	ALPS ADVISORS INC	21,494	0.01%	$395K	NEW
111	Renaissance Capital LLC	21,488	0.01%	$395K	NEW
112	Police & Firemen's Retirement System of New Jersey	21,388	0.01%	$393K	NEW
113	Fore Capital, LLC	21,000	0.01%	$386K	NEW
114	Shellback Capital, LP	20,000	0.01%	$367K	NEW
115	FLPUTNAM INVESTMENT MANAGEMENT CO	19,527	0.01%	$359K	NEW
116	Caption Management, LLC	19,400	0.01%	$356K	NEW
117	VICTORY CAPITAL MANAGEMENT INC	19,281	0.01%	$354K	NEW
118	Robertson Stephens Wealth Management, LLC	19,000	0.01%	$349K	NEW
119	Vanguard Global Advisers, LLC	18,204	0.01%	$334K	NEW
120	Treasurer of the State of North Carolina	17,950	0.01%	$330K	NEW
121	WELLS FARGO & COMPANY/MN	16,837	0.01%	$309K	NEW
122	Foundations Investment Advisors, LLC	16,267	0.01%	$299K	NEW
123	Mitsubishi UFJ Asset Management Co., Ltd.	15,200	0.01%	$279K	NEW
124	ROYAL BANK OF CANADA	14,720	0.01%	$271K	NEW
125	ALLIANCEBERNSTEIN L.P.	14,703	0.01%	$270K	NEW
126	Russell Investments Group, Ltd.	14,029	0.00%	$258K	NEW
127	Quantum Private Wealth, LLC	12,567	0.00%	$231K	NEW
128	Equitable Holdings, Inc.	12,548	0.00%	$230K	NEW
129	Virtu Financial LLC	12,101	0.00%	$222K	NEW
130	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	12,015	0.00%	$221K	NEW
131	OXFORD ASSET MANAGEMENT LLP	11,291	0.00%	$207K	NEW
132	MILLENNIUM MANAGEMENT LLC	10,934	0.00%	$201K	NEW
133	Private Advisor Group, LLC	10,455	0.00%	$192K	NEW
134	BOOTHBAY FUND MANAGEMENT, LLC	10,323	0.00%	$190K	NEW
135	AXQ CAPITAL, LP	10,238	0.00%	$188K	NEW
136	Diametric Capital, LP	10,000	0.00%	$184K	NEW
137	FORMULA GROWTH LTD	9,500	0.00%	$174K	NEW
138	Rakuten Securities, Inc.	8,746	0.00%	$161K	NEW
139	Federation des caisses Desjardins du Quebec	8,000	0.00%	$147K	NEW
140	JONES FINANCIAL COMPANIES LLLP	7,692	0.00%	$145K	NEW
141	SBI Securities Co., Ltd.	7,506	0.00%	$138K	NEW
142	Legal & General Group Plc	7,448	0.00%	$137K	NEW
143	SG Americas Securities, LLC	7,032	0.00%	$129K	NEW
144	Zurcher Kantonalbank (Zurich Cantonalbank)	6,995	0.00%	$128K	NEW
145	CITIGROUP INC	5,903	0.00%	$108K	NEW
146	Silicon Valley Capital Partners	5,629	0.00%	$103K	NEW
147	IFP Advisors, Inc	5,182	0.00%	$95K	NEW
148	NISA INVESTMENT ADVISORS, LLC	5,000	0.00%	$92K	NEW
149	FEDERATED HERMES, INC.	5,000	0.00%	$92K	NEW
150	Medallion Wealth Advisors, LLC	2,900	0.00%	$53K	NEW
151	Benson Wealth Management INC	2,143	0.00%	$39K	NEW
152	Caitong International Asset Management Co., Ltd	1,892	0.00%	$35K	NEW
153	Arax Advisory Partners	1,534	0.00%	$28K	NEW
154	Strengthening Families & Communities, LLC	1,292	0.00%	$24K	NEW
155	Sterling Capital Management LLC	1,268	0.00%	$23K	NEW
156	Rockefeller Capital Management L.P.	1,232	0.00%	$23K	NEW
157	STRS OHIO	1,044	0.00%	$19K	NEW
158	PNC Financial Services Group, Inc.	1,000	0.00%	$18K	NEW
159	Hurley Capital, LLC	1,000	0.00%	$18K	NEW
160	First Pacific Financial	900	0.00%	$17K	NEW
161	NFSG Corp	800	0.00%	$15K	NEW
162	NewEdge Advisors, LLC	790	0.00%	$15K	NEW
163	Atlantic Union Bankshares Corp	743	0.00%	$14K	NEW
164	MetLife Investment Management, LLC	687	0.00%	$13K	NEW
165	Tower Research Capital LLC (TRC)	620	0.00%	$11K	NEW
166	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	595	0.00%	$11K	NEW
167	Hilton Head Capital Partners, LLC	550	0.00%	$10K	NEW
168	NBT BANK, N.A.	500	0.00%	$9K	NEW
169	AMERIFLEX GROUP, INC.	437	0.00%	$8K	NEW
170	WOLFF WIESE MAGANA LLC	300	0.00%	$6K	NEW
171	Aspect Partners, LLC	239	0.00%	$4K	NEW
172	Triumph Capital Management	225	0.00%	$4K	NEW
173	Costello Asset Management, INC	200	0.00%	$4K	NEW
174	EverSource Wealth Advisors, LLC	163	0.00%	$3K	NEW
175	Physician Wealth Advisors, Inc.	158	0.00%	$3K	NEW
176	FNY Investment Advisers, LLC	140	0.00%	$2K	NEW
177	US BANCORP \DE\	126	0.00%	$2K	NEW
178	NATIONAL BANK OF CANADA /FI/	120	0.00%	$2K	NEW
179	HAZLETT, BURT & WATSON, INC.	100	0.00%	$2K	NEW
180	Avion Wealth	100	0.00%	$1K	NEW
181	HARBOUR INVESTMENTS, INC.	100	0.00%	$2K	NEW
182	Global Retirement Partners, LLC	57	0.00%	$1K	NEW
183	Financial Management Professionals, Inc.	55	0.00%	$1K	NEW
184	SWAN Capital LLC	40	0.00%	$734	NEW
185	SIGNATUREFD, LLC	35	0.00%	$643	NEW
186	HOLLENCREST CAPITAL MANAGEMENT	25	0.00%	$459	NEW
187	BIRCHBROOK, INC.	10	0.00%	$184	NEW
188	Essential Investment Partners LLC	5	0.00%	$92	NEW
189	Transamerica Financial Advisors, LLC	4	0.00%	$73	NEW
190	Allworth Financial LP	3	0.00%	$56	NEW

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Jane Street Capital, LLC	SCHEDULE 13G	2026-09-04	2026-08-31	4,588,860	1.5%
JANE STREET GROUP, LLC	SCHEDULE 13G	2026-09-04	2026-08-31	15,322,002	5.2%
Jane Street Global Trading, LLC	SCHEDULE 13G	2026-09-04	2026-08-31	10,733,042	3.6%
X-Energy Holdings, LLC	SCHEDULE 13G	2026-08-14	2026-06-30	79,033,595	21.8%
Kamal Seyed Ghaffarian	SCHEDULE 13G	2026-08-14	2026-06-30	92,871,109	25%
Ares Partners Holdco LLC	SCHEDULE 13G	2026-08-12	2026-06-30	38,263,341	12.3%
Ares X-Energy Co-Invest LP	SCHEDULE 13G	2026-08-12	2026-06-30	8,403,966	2.7%
Ares X-Energy Holdings LP	SCHEDULE 13G	2026-08-12	2026-06-30	27,203,095	8.7%
ACIP Investments Pooling LLC - Series 31	SCHEDULE 13G	2026-08-12	2026-06-30	2,656,280	0.9%
Amazon.com, Inc.	SCHEDULE 13G	2026-08-06	2026-06-30	65,836,948	22.9%
Segra XE 2, LP	SCHEDULE 13G	2026-07-17	2026-06-09	3,095,677	1.1%
Segra Global Management, LLC	SCHEDULE 13G	2026-07-17	2026-06-09	15,129,629	5.3%
SEGRA CAPITAL MANAGEMENT, LLC	SCHEDULE 13G	2026-07-17	2026-06-09	15,129,629	5.3%
Segra Resource Partners, LP	SCHEDULE 13G	2026-07-17	2026-06-09	4,326,230	1.5%
Segra XE 1, LP	SCHEDULE 13G	2026-07-17	2026-06-09	7,707,722	2.7%
Adam Rodman	SCHEDULE 13G	2026-07-17	2026-06-09	15,129,629	5.3%
Citadel Advisors Holdings LP	SCHEDULE 13G	2026-05-04	2026-04-27	2,198,811	0.8%
Kenneth Griffin	SCHEDULE 13G	2026-05-04	2026-04-27	18,558,001	6.8%
GFNCI LLC	SCHEDULE 13G	2026-05-04	2026-04-27	16,219,322	5.9%
Citadel Securities LLC	SCHEDULE 13G	2026-05-04	2026-04-27	139,868	0.1%
Citadel Securities Group LP	SCHEDULE 13G	2026-05-04	2026-04-27	139,868	0.1%
Citadel Securities GP LLC	SCHEDULE 13G	2026-05-04	2026-04-27	139,868	0.1%
Citadel GP LLC	SCHEDULE 13G	2026-05-04	2026-04-27	2,198,811	0.8%
Citadel Advisors LLC	SCHEDULE 13G	2026-05-04	2026-04-27	2,198,811	0.8%
XERC Holdings LLC	SCHEDULE 13G	2026-05-04	2026-04-27	16,219,322	5.9%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.