Polar Asset amends 13G: Holds 960,000 shares in Tavia Acquisition Corp (TAVI)

Rhea-AI Filing Summary

Tavia Acquisition Corp Schedule 13G/A amendment reports that Polar Asset Management Partners Inc., as investment adviser to Polar Multi-Strategy Master Fund, beneficially owns 960,000 ordinary shares, representing 8.3% of the class. The filing lists sole voting and dispositive power over these shares and is signed on 05/15/2026.

Insights

Institutional Ownership Analyst

Large passive stake disclosed: 960,000 shares (8.3%).

Polar Asset Management Partners Inc. reports beneficial ownership of 960,000 ordinary shares, with sole voting and dispositive power. The position is reported via an amended Schedule 13G, which is typically used for passive or qualifying institutional investors.

Holdings are shown as of 03/31/2026 with the amendment signed on 05/15/2026; subsequent filings would show any change in stake.

Securities Compliance Lawyer

Filing clarifies reporting attributes and control powers.

The amendment identifies the reporting person as an investment adviser to a Cayman fund and states sole power to vote and dispose of 960,000 shares (CUSIP G86880104). The filing includes the reporting person’s registration status with the Ontario Securities Commission.

Qualifying language and signature complete the amendment; legal risk appears procedural rather than substantive based on the disclosed items.

Key Figures

Beneficial ownership: 960,000 shares Percent of class: 8.3% CUSIP: G86880104 +2 more

5 metrics

Beneficial ownership 960,000 shares Amount beneficially owned as reported in Item 4

Percent of class 8.3% Percent of class as reported in Item 4

CUSIP G86880104 CUSIP for ordinary shares listed in Item 2(d)

Sole voting power 960,000 shares Sole power to vote or direct the vote (Item 4(c)(i))

Filing signature date 05/15/2026 Signed by Chief Compliance Officer

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 2; Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"Item 4. (a) Amount beneficially owned: 960000"

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

"Sole power to dispose or to direct the disposition of: 960000"

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.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Tavia Acquisition Corp

(Name of Issuer)

Ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

G86880104

(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): G86880104

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 960,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 960,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

960,000.00

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)

8.3 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Tavia Acquisition Corp
(b)	Address of issuer's principal executive offices: 850 Library Avenue, Suite 204 Newark, DE, 19711
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: Ordinary shares, par value $0.0001 per share
(e)	CUSIP No.: G86880104
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: 960000
(b)	Percent of class: 8.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 960000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 960000
	(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

FAQ

What stake does Polar Asset Management report in TAVI?

Polar Asset reports beneficial ownership of 960,000 ordinary shares, or 8.3% of the class. The Schedule 13G/A shows sole voting and dispositive power over those shares and cites CUSIP G86880104; the amendment is signed on 05/15/2026.

Is the 13G/A filing an acquisition or passive disclosure for TAVI?

The Schedule 13G/A is a disclosure of beneficial ownership rather than a purchase notice. It identifies Polar as an investment adviser to a Cayman fund and reports the fund’s ownership and control powers; the form classically covers passive institutional holdings.

Who holds voting and disposal power for the reported TAVI shares?

Polar Asset Management Partners Inc. reports sole voting and sole dispositive power for 960,000 shares. The filing’s Item 4 lists 960,000 shares under sole power to vote and to direct disposition, with zero shared power entries.

What entity is the beneficial owner named in the TAVI filing?

The reporting entity is Polar Multi-Strategy Master Fund (PMSMF), for which Polar Asset Management Partners Inc. serves as investment adviser. The filing states PMSMF directly holds the reported ordinary shares and lists the adviser’s Toronto address.

What dates are associated with the TAVI Schedule 13G/A amendment?

The filing lists an ownership date of 03/31/2026 and is signed on 05/15/2026. The amendment number is indicated as Amendment No. 2 and includes the reporting person’s signature and title.