QU
QUANTUMSPHERE ACQUISITION CO
QUMS·G7387B106·US·Common Stock·Financial Services - Shell Companies-Activist
QUMS (QUANTUMSPHERE ACQUISITION CO) is held by 11 institutional investors as of Q1 2026. Largest holders: WOLVERINE ASSET MANAGEMENT LLC ($6.1M), D. E. Shaw & Co., Inc. ($4.1M), LINDEN ADVISORS LP ($4M). Net institutional sentiment: Mixed.
11
Holders
$23.2M
Total Value
57% (7)
Consensus
4 buying - 3 selling
13F: Insider & Congress:
Who's Trading
ActivistWRW. R. Berkley Corporation7.7%Aug 6, 2026
ActivistHIHighbridge Capital Management, LLC0.0%Feb 17, 2026
ActivistMFMizuho Financial Group, Inc.6.3%Feb 12, 2026
ActivistWHWhiteowl Holdings LLC27.4%Sep 15, 2025
Top Holders
QUQUMSQUANTUMSPHERE ACQUISITION CO
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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer