Polar reports 1.3M shares (5.7%) of KCA

Kensington Capital Acquisition Corp VI ownership disclosure: Polar Asset Management Partners Inc. reports beneficial ownership of 1,300,000 Class A ordinary shares representing 5.7% of the class as of 03/31/2026.

Rhea-AI Filing Summary

Kensington Capital Acquisition Corp VI ownership disclosure: Polar Asset Management Partners Inc. reports beneficial ownership of 1,300,000 Class A ordinary shares representing 5.7% of the class as of 03/31/2026. The filing states Polar holds sole voting and dispositive power over these shares.

Insights

Institutional Ownership Analyst

Large institutional stake disclosed with sole voting and dispositive control.

Polar Asset Management Partners Inc. reports beneficial ownership of 1,300,000 shares and sole power to vote and dispose of those shares, per the Schedule 13G excerpt. The ownership is tied to units convertible into Class A ordinary shares.

Filing dates show an ownership snapshot 03/31/2026 and a signature dated 05/15/2026. Subsequent filings would reveal changes in position or conversions.

Compliance & Regulatory Specialist

Schedule 13G disclosure consistent with passive/institutional reporting conventions.

The statement identifies the reporting person as an investment advisor to Polar Multi-Strategy Master Fund and lists a CUSIP (G52519108). It records sole voting and dispositive authority, consistent with adviser-managed holdings disclosed under beneficial ownership rules.

Any shifts in percent ownership above reporting thresholds would require amendment filings under applicable rules.

Key Figures

Shares beneficially owned: 1,300,000 shares Percent of class: 5.7% CUSIP: G52519108 +2 more

5 metrics

Shares beneficially owned 1,300,000 shares Amount beneficially owned as reported

Percent of class 5.7% Percent of Class A ordinary shares as of 03/31/2026

CUSIP G52519108 CUSIP for Class A ordinary shares

Voting power 1,300,000 shares (sole) Sole power to vote or direct the vote

Dispositive power 1,300,000 shares (sole) Sole power to dispose or direct disposition

Key Terms

beneficially owned, sole dispositive power, Schedule 13G, CUSIP

4 terms

beneficially owned regulatory

"Amount beneficially owned: 1300000 (The Reporting Person may be deemed to beneficially own"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"(iii) Sole power to dispose or to direct the disposition of: 1300000"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G regulatory

"form_type: SCHEDULE 13G"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

CUSIP technical

"CUSIP Number(s): G52519108"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Polar Asset Management Partners hold in KCA?

Polar Asset Management Partners reports beneficial ownership of 1,300,000 Class A shares, equal to 5.7% of the class as of 03/31/2026. The filing lists sole voting and dispositive power for those shares.

Who holds voting and dispositive power over the shares reported in the KCA filing?

The filing states that Polar Asset Management Partners Inc. has sole voting power and sole dispositive power over 1,300,000 shares. This indicates the reporting person can direct votes and dispositions for those shares.

What entity does Polar represent in this Schedule 13G for KCA?

Polar serves as investment advisor to Polar Multi-Strategy Master Fund, a Cayman Islands exempted company, with respect to the shares directly held by that fund. The filing attributes beneficial ownership to Polar via convertible units.

When was the ownership snapshot and who signed the KCA Schedule 13G?

The beneficial ownership is stated as of 03/31/2026, and the Schedule 13G excerpt is signed by Andrew Ma, Chief Compliance Officer with a signing date of 05/15/2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/15/2026 - 11:49 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Kensington Capital Acquisition Corp VI

(Name of Issuer)

Class A ordinary shares, par value $0.0001

(Title of Class of Securities)

G52519108

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G52519108

1

Names of Reporting Persons

Polar Asset Management Partners Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ONTARIO, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,300,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,300,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,300,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.7 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Kensington Capital Acquisition Corp VI
(b)	Address of issuer's principal executive offices: 1400 OLD COUNTRY ROAD, SUITE 301, WESTBURY, NY, 11590
Item 2.
(a)	Name of person filing: This statement is filed by Polar Asset Management Partners Inc., a company incorporated under the laws of Ontario, Canada, which serves as the investment advisor to Polar Multi-Strategy Master Fund, a Cayman Islands exempted company ("PMSMF") with respect to the shares directly held by PMSMF.
(b)	Address or principal business office or, if none, residence: 16 York Street, Suite 2900, Toronto, Ontario, M5J 0E6
(c)	Citizenship: Canada
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001
(e)	CUSIP Number(s): G52519108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	The Reporting Person is an investment fund manager, portfolio manager, exempt market dealer and commodity trading manager registered with the Ontario Securities Commission.
Item 4.	Ownership
(a)	Amount beneficially owned: 1300000 (The Reporting Person may be deemed to beneficially own the reported shares by virtue of its ownership of units that are convertible into or include Class A ordinary shares.)
(b)	Percent of class: 5.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1300000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1300000
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Polar Asset Management Partners Inc.

Signature:	Andrew Ma
Name/Title:	Chief Compliance Officer
Date:	05/15/2026