D. E. Shaw & Co., Inc.

SEC CIK: 0001009207
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

QUMS holding history

Quantumsphere Acquisition Corp in every 13F filed by D. E. Shaw & Co., Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

QUMS overview All 13F holders of QUMS Full Q2 2026 holdings

Shares (Q2 2026): 409,860
Value: $4.19M
% of portfolio: <0.1%
Quarters held: 3; Since Q4 2025

Holdings of QUMS by D. E. Shaw & Co., Inc., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	409,860	$4.19M	<0.1%	00.0%	Unchanged	Holders
Q1 2026	409,860	$4.15M	<0.1%	00.0%	Unchanged	Holders
Q4 2025	409,860	$4.10M	<0.1%	+409,860	New	Holders