XTX Topco’s NioCorp Developments NB Stock Holding History

XTX Topco’s Portfolio NB Stock Details NB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-56,411	Closed	-$299K	–	4176
2025 Q4	$299K	Buy	56,411 +28,401	+101%	+$195K	0.01%	2072
2025 Q3	$187K	Sell	28,010 -4,276	-13%	-$18K	0.01%	1872
2025 Q2	$75.2K	Buy	+32,286	New	+$80.5K	﹤0.01%	1934
2025 Q1	–	Sell	-18,274	Closed	-$28.3K	–	2845
2024 Q4	$28.3K	Buy	18,274 +454	+3%	+$719	﹤0.01%	1986
2024 Q3	$38.8K	Sell	17,820 -10,818	-38%	-$19.8K	﹤0.01%	1732
2024 Q2	$49.5K	Buy	28,638 +14,966	+109%	+$34.9K	﹤0.01%	1511
2024 Q1	$37.2K	Buy	+13,672	New	+$38.4K	0.01%	1516

Other funds holding NB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

BHCM

Brevan Howard Capital Management St. Helier, Jersey $11.3B AUM 35.84% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

PMG

Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Citigroup New York $235B AUM 32.99% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

XTX Topco's NB Position: Q1 2026 in Review

XTX Topco sold out of NioCorp Developments (NB) in Q1 2026, closing a stake of 56,411 shares — an estimated $299K sold.

XTX Topco first reported a position in NB in Q1 2024 and held it in 7 quarters. The position peaked at $299K in Q4 2025. 204 funds tracked by Wall St. Rank hold NB as of Q1 2026.

XTX Topco reported no remaining NioCorp Developments position as of Q1 2026 after selling out during the quarter.
XTX Topco sold 56,411 NioCorp Developments shares in Q1 2026, an estimated $299K.
XTX Topco first reported a position in NioCorp Developments in Q1 2024 and held it in 7 quarters.
XTX Topco's NioCorp Developments position peaked at $299K in Q4 2025.
204 funds tracked by Wall St. Rank held NioCorp Developments as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.