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:
QU

Smart Money Verdict

View all
Held by 11 funds

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
ActivistWAWOLVERINE ASSET MANAGEMENT LLC5.0%Nov 7, 2025
ActivistWHWhiteowl Holdings LLC27.4%Sep 15, 2025

Top Holders

Fund
Action
Shares
Value
Weight
Est. P&L
Conviction
Increased
603,984(+5.0%)$6.1M0.1%+2.97%
29
Unchanged
409,860$4.1M0.0%+3.00%
0
Unchanged
400,000$4M0.0%+3.00%
0
Increased
265,600(+51.1%)$2.7M0.0%+2.76%
36
Unchanged
235,000$2.4M0.0%+3.41%
0
Decreased
175,001(-58.8%)$1.8M0.0%+3.00%
0
Increased
115,048(+12.4%)$1.2M0.0%+2.92%
28
Unchanged
55,000$556,6000.0%+3.00%
0
Decreased
35,291(-83.8%)$357,1450.0%+3.00%
0
Increased
63(+110.0%)$6380.0%+2.62%
12
Decreased
22,303(-10.0%)$2260.0%+3.25%
0
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

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