$QUCY

$0.96 +$0.05 (6.07%) Close

$QUCY Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 84.1M shares outstanding

Who owns QUCY?

By type of holder

Institutions 1.5% Insiders 24.4% Everyone else 74.1%

Concentration Top 10 holders own 592.9%

Lazar David E. 567.4% · Donahue Kevin Michael 24.4%

Institutional ownership

1.5%

-0.1 pts vs last qtr

Institutional holders

-3 vs last qtr

Net shares bought

−108.1K

by institutions in Q2 2026

New / sold out

4 / 7

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jane Street Group, LLC +56.3K
Gsa Capital Partners LLP NEW +15.7K

Biggest sellers in Q2 2026

UBS Group AG −80.2K
XTX Topco Ltd −52.9K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.6M

2 notices from 1 person

Shares covered

440.0K

0.52% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Baechler Guido Officer $1.6M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2024–FY2025

+508.4%

+508.38% a year

Each share's claim on the business

−83.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $1.54M

over 2 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years1% 1–3 years83% Under 1 year16%

Quarterly turnover

13.2%

of institutional shares changed hands

Top 10 managers, median time held

1 year

Super Investors

Investment managers reporting QUCY on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AC Armistice Capital, LLC	400.0K	0.48%	Unchanged	2024	0.0%
Shares held by quarter Peak holding1.2M (Q4'25) Change over 8 quarters+400.0K Share of the company0.480% Armistice Capital, LLC's full portfolio →
VC Vanguard Capital Management LLC	160.0K	0.19%	+3.3K (+2.1%)	2025	0.0%
Shares held by quarter Peak holding160.0K (Q2'26) Change over 8 quarters+160.0K Share of the company0.190% Vanguard Capital Management LLC's full portfolio →

Armistice Capital, LLC

400.0K

% of company

0.48%

Change vs last qtr

Unchanged

Held since

2024

Vanguard Capital Management LLC

160.0K

% of company

0.19%

Change vs last qtr

+3.3K (+2.1%)

Held since

2025

28 more super investors behind a free account

See every manager holding Quantum Cyber NV, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting QUCY on Form N-PORT; together they hold 0.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$862K	114.2K	0.14%	0.00%	June 30, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$319K	42.3K	0.05%	0.00%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$862K

% of company

0.14%

% of the fund

0.00%

As of

June 30, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$319K

% of company

0.05%

% of the fund

0.00%

As of

June 30, 2026

8 more funds behind a free account

See every fund holding Quantum Cyber NV and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LD Lazar David E. 5%+ holder 13D · 94.3%	477.0M	567.40%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company567.400% Disclosed stake13D · 94.3% View the 13D/G filing →
DK Donahue Kevin Michael Insider	20.6M	24.44%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company24.440% Donahue Kevin Michael's insider activity →

Lazar David E.

5%+ holder13D · 94.3%

477.0M

% of company

567.40%

Change vs last qtr

—

Held since

—

Donahue Kevin Michael

Insider

20.6M

% of company

24.44%

Change vs last qtr

—

Held since

—

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