Xanadu Quantum Technologies Ltd - Class B Subordinate Voting Shares, without par value (XNDU)

Q: What does CUSIP 98390R102 represent in this 13F holders report?

CUSIP 98390R102 is the security identifier for XNDU - Xanadu Quantum Technologies Ltd - Class B Subordinate Voting Shares, without par value used to aggregate holder disclosures.

Q: How many institutions held XNDU - Xanadu Quantum Technologies Ltd - Class B Subordinate Voting Shares, without par value in Q3 2026?

20 institutional investors reported XNDU - Xanadu Quantum Technologies Ltd - Class B Subordinate Voting Shares, without par value for Q3 2026. Use the holders table for investor-level position and value details.

CUSIP: 98390R102

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Class B Subordinate Voting Shares, without par value
Total 13F shares: 2,936,711
Total 13F value: $13,447,017
Share change: +2,665,315
SEC-reported price per share: $4.58
Number of holders: 20
Value change: +$11,809,546
Number of buys: 15
Number of sells: 7
Shares outstanding: 166,437,700

Security key

98390R102

Report period

Q3 2026

Institutions

Top holders

XNDU full security history Ownership snapshot Full 13F holder table Previous quarter: Q1 2026 Xanadu Quantum Technologies Ltd SEC filings Xanadu Quantum Technologies Ltd company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 98390R102

Previous quarter: Q1 2026

Recent filing periods:

Q1 2026

Ownership snapshot

Top reported holders of XNDU - Xanadu Quantum Technologies Ltd - Class B Subordinate Voting Shares, without par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Radical Ventures Fund II ...

Disclosed value leader

Christian Weedbrook

Comparable rows

6/15

Latest evidence

22 Sep 2026

13D/G 13F Lead comparable stake: 22% 9 rows are not safely comparable across share classes. 13D/G row: Radical Ventures Fund II (International), L.P. Showing 1-6 of 15 holder rows.

Quick read

Radical Ventures Fund II (International), L.P. leads the comparable SEC ownership view at 22%.

6 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Radical Ventures Fund II (International), L.P.'s linked filing trail.

Comparable ownership Top 5

Radical Ventures Fund II (Interna... 22%

Christian Weedbrook 20%

LOCKHEED MARTIN INVESTMENT MANAGE... 5.1%

Polar Asset Management Partners Inc. 4.6%

BDC CAPITAL INC. 4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Radical Ventures Fund II (International), L.P.	13D/G Radical Ventures II GP Inc. 13D/G	22% Reported 13D/G · 26 Mar 2026	$331,967,815 11,898,488 shares	$0	26 Mar 2026
Christian Weedbrook	13D/G 13D/G	20% Reported 13D/G · 22 Sep 2026	$440,052,544 41,869,890 shares	$0	22 Sep 2026
LOCKHEED MARTIN INVESTMENT MANAGEMENT CO	13D/G 13D/G	5.1% Reported 13D/G · 26 Mar 2026	$64,418,087 2,308,892 shares	$0	26 Mar 2026
Polar Asset Management Partners Inc.	13D/G 13D/G	4.6% Reported 13D/G · 31 Mar 2026	$22,980,000 2,000,000 shares	$0	31 Mar 2026
BDC CAPITAL INC.	13D/G 13D/G	4% Reported 13D/G · 20 Sep 2026	$69,970,409 6,657,508 shares	$0	20 Sep 2026
MILLENNIUM MANAGEMENT LLC	13F 13D/G Company 13F 13D/G	0.2% Reported 13D/G · 17 Jun 2026	$1,520,417 125,774 shares	—	30 Jun 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

2,936,711

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q1 2026 Across Filers

Q1 2026 holders

Q3 2026 holders

Holder diff

-21

Investor	Q1 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend