SPERO THERAPEUTICS INC (SPRO)

3 tracked managers currently hold SPRO on their latest filing. Change is versus that manager’s previous filing. Reported as of quarter end, filed up to ~45 days later, not live positions.

Sort: Size · Weight change

Sorted by reported value on the latest filing.

Manager	Period	Change	Value	Weight	Prev weight	Shares	Δ shares
TWO SIGMA INVESTMENTS, LP	Q2 2026	TRIM	$846.0K	0.0 %	0.0 %	382,814	-502,817
Point72 Asset Management, L.P.	Q2 2026	ADD	$230.7K	0.0 %	0.0 %	104,377	+44,709
MILLENNIUM MANAGEMENT LLC	Q2 2026	NEW	$42.6K	0.0 %	—	19,298	NEW