X-energy, Inc.: which funds bought and sold

Institutions that bought and sold X-energy shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 181 institutions that filed 13F reports for both quarters added to or opened positions in X-energy, and 0 cut or closed them. Together they added a net 180.0M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 33.4M shares; index fund managers were net buyers of 9.6M shares. 181 opened a new position and 0 sold out entirely.

Bought, Q2 2026 181 institutions, 181 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out

Net change, all compared +180.0M shares (—)

Net change, active managers +33.4M shares (—), 38 bought, 0 sold

Buyers versus sellers

institutions compared, 181

181 bought 0 sold

Active managers and hedge funds 38 bought · 0 sold · +33.4M

Index fund managers 8 bought · 0 sold · +9.6M

Other institutions 135 bought · 0 sold · +137.0M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Amazon Com Inc	+65.8M New position	65.8M	$1.2B
Segra Capital Management, LLC	+14.5M New position	14.5M	$266M
Ares Management LLC	+13.8M New position	13.8M	$254M
Ontario Teachers Pension Plan Board	+8.5M New position	8.5M	$155M
Van Eck Associates Corp	+7.1M New position	7.1M	$131M
Point72 Asset Management, L.P. Hedge fund	+5.7M New position	5.7M	$104M
ARK Investment Management LLC Active manager	+5.4M New position	5.4M	$99.4M
Blackrock, Inc. Index funds	+4.4M New position	4.4M	$80.8M
Jane Street Group, LLC	+3.9M New position	3.9M	$70.8M
Dow Chemical Co	+3.8M New position	3.8M	$69.6M
D. E. Shaw & Co., Inc. Hedge fund	+3.8M New position	3.8M	$69.3M
Citadel Advisors LLC Hedge fund	+2.4M New position	2.4M	$44.2M
Hood River Capital Management LLC	+2.3M New position	2.3M	$42.9M
Price T Rowe Associates Inc Active manager	+2.3M New position	2.3M	$42.6M
Soros Fund Management LLC Hedge fund	+2.2M New position	2.2M	$41.2M
UBS Group AG	+2.0M New position	2.0M	$37.6M
Vanguard Capital Management LLC Index funds	+1.8M New position	1.8M	$33.8M
Vanguard Portfolio Management LLC Index funds	+1.5M New position	1.5M	$27.8M
Dg Capital Management, LLC	+1.5M New position	1.5M	$27.8M
BNP Paribas Asset Management Holding S.A.	+1.5M New position	1.5M	$27.6M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Point72 Asset Management, L.P. Hedge fund	+5.7M New position	5.7M	$104M
ARK Investment Management LLC Active manager	+5.4M New position	5.4M	$99.4M
D. E. Shaw & Co., Inc. Hedge fund	+3.8M New position	3.8M	$69.3M
Citadel Advisors LLC Hedge fund	+2.4M New position	2.4M	$44.2M
Price T Rowe Associates Inc Active manager	+2.3M New position	2.3M	$42.6M
Soros Fund Management LLC Hedge fund	+2.2M New position	2.2M	$41.2M
Zimmer Partners, LP Hedge fund	+1.2M New position	1.2M	$22.9M
Alkeon Capital Management LLC Hedge fund	+1.0M New position	1.0M	$18.4M
Two Seas Capital LP Hedge fund	+1.0M New position	1.0M	$18.4M
Alyeska Investment Group, L.P. Hedge fund	+874K New position	874K	$16M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
No institution cut its holding.

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

New positions

largest by value

Institution	Shares	Value June 30, 2026
Amazon Com Inc	65.8M	$1.2B
Segra Capital Management, LLC	14.5M	$266M
Ares Management LLC	13.8M	$254M
Ontario Teachers Pension Plan Board	8.5M	$155M
Van Eck Associates Corp	7.1M	$131M
Point72 Asset Management, L.P.Hedge fund	5.7M	$104M
ARK Investment Management LLCActive manager	5.4M	$99.4M
Blackrock, Inc.Index funds	4.4M	$80.8M
Jane Street Group, LLC	3.9M	$70.8M
Dow Chemical Co	3.8M	$69.6M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
No institution sold its whole holding.

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 188
Ten largest holders: 73.3%
Index fund managers: 5.3%
Active managers and hedge funds: 18.5%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	New	Net change in shares	Net %
Active managers and hedge funds	38	38	+33.4M	—
Index fund managers	8	8	+9.6M	—
Other institutions	135	135	+137.0M	—

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on X-energy.

Only managers that filed a holdings report for both quarters are compared (181 here). 7 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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