Robin Energy: Alta Partners reports 19.4% stake

Alta Partners reported sole voting and dispositive power over its reported 19.4% position in Robin Energy common shares.

Rhea-AI Filing Summary

Alta Partners LLC reported beneficial ownership of 258,979 Robin Energy Ltd. common shares, representing 19.4% of the class. Its reported sole voting and dispositive power covered 258,979 shares each, with shared voting and dispositive power of 0 shares. The percentage was based on 1,332,297 common shares issued and outstanding as of October 15, 2026.

Key Figures

Beneficially owned shares: 258,979 shares Percent of class: 19.4% Common shares issued and outstanding: 1,332,297 shares +3 more

6 metrics

Beneficially owned shares 258,979 shares Alta Partners LLC reported amount beneficially owned

Percent of class 19.4% Based on common shares issued and outstanding as of October 15, 2026

Common shares issued and outstanding 1,332,297 shares As of October 15, 2026

Sole voting power 258,979 shares Reported by Alta Partners LLC

Sole dispositive power 258,979 shares Reported by Alta Partners LLC

Shared voting and dispositive power 0 shares Reported by Alta Partners LLC

Key Terms

beneficially owned, Sole Voting Power, Sole Dispositive Power

3 terms

beneficially owned financial

"Amount beneficially owned: 258,979 Common Shares"

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 Voting Power financial

"Sole Voting Power 258,979.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power financial

"Sole Dispositive Power 258,979.00"

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.

FAQ

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

How many RBNE shares did Alta Partners report owning?

Alta Partners LLC reported beneficial ownership of 258,979 Robin Energy Ltd. common shares, equal to 19.4% of the class. The percentage was based on 1,332,297 common shares issued and outstanding as of October 15, 2026.

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

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Available on EDGAR 10/28/2026 - 07:06 PM EDT Accepted by SEC EDGAR 10/28/2026 - 07:05 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Robin Energy Ltd.

(Name of Issuer)

Common Shares, $0.001 par value per share

(Title of Class of Securities)

Y73118120

(CUSIP Number)

10/22/2026

(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): Y73118120

1

Names of Reporting Persons

Alta Partners LLC

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

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 258,979.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 258,979.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

258,979.00

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)

19.4 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Robin Energy Ltd.
(b)	Address of issuer's principal executive offices: 223 CHRISTODOULOU CHATZIPAVLOU STREET, HAWAII ROYAL GARDENS, LIMASSOL, CYPRUS, 3036.
Item 2.
(a)	Name of person filing: Alta Partners LLC
(b)	Address or principal business office or, if none, residence: 1205 Franklin Avenue, Garden City, New York 11530
(c)	Citizenship: New York Limited Liability Company
(d)	Title of class of securities: Common Shares, $0.001 par value per share
(e)	CUSIP Number(s): Y73118120
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).
Item 4.	Ownership
(a)	Amount beneficially owned: 258,979 Common Shares. Copy
(b)	Percent of class: 19.4%, based on 1,332,297 Common Shares issued and outstanding as of October 15, 2026, as reported in the Issuer's Registration Statement on Form F-1 filed with the Securities and Exchange Commission on October 16, 2026.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 258,979 Common Shares
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 258,979 Common Shares
	(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 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.

Alta Partners LLC

Signature:	/s/ Steven Cohen
Name/Title:	Steven Cohen, Managing Member
Date:	10/28/2026