Mangrove Partners’s NioCorp Developments NB Stock Holding History

Mangrove Partners’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	-25,540	Closed	-$135K	–	539
2025 Q4	$135K	Buy	+25,540	New	+$176K	0.01%	341

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

Mangrove Partners's NB Position: Q1 2026 in Review

Mangrove Partners sold out of NioCorp Developments (NB) in Q1 2026, closing a stake of 25,540 shares — an estimated $135K sold.

Mangrove Partners first reported a position in NB in Q4 2025 and held it in 1 quarter. The position peaked at $135K in Q4 2025. 204 funds tracked by Wall St. Rank hold NB as of Q1 2026.

Mangrove Partners reported no remaining NioCorp Developments position as of Q1 2026 after selling out during the quarter.
Mangrove Partners sold 25,540 NioCorp Developments shares in Q1 2026, an estimated $135K.
Mangrove Partners first reported a position in NioCorp Developments in Q4 2025 and held it in 1 quarter.
Mangrove Partners's NioCorp Developments position peaked at $135K in Q4 2025.
204 funds tracked by Wall St. Rank held NioCorp Developments as of Q1 2026.

Based on Mangrove Partners's 13F filing for Q1 2026, filed 15 May 2026.