Willow Lane Acquisition Corp. reports Schedule 13G/A ownership update for Magnetar-related reporting persons. As of March 31, 2026, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman each reported 946,350 shares—approximately 7.48% of the outstanding Class A ordinary shares (based on February 19, 2026 Form 10-K disclosure of 12,650,000 shares outstanding). The Reporting Persons ceased to hold greater than 5% on May 11, 2026.
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Insights
Magnetar group disclosed a material passive stake that later fell below 5%.
Magnetar Financial and affiliated entities reported beneficial ownership of 946,350 shares, representing 7.48% as of March 31, 2026. The filing is a passive ownership disclosure under Schedule 13G/A and lists constituent fund allocations by account.
Timing shows the position dropped below the 5% beneficial-ownership threshold on May 11, 2026; subsequent filings or issuer disclosures would clarify whether disposals or corporate actions caused the change.
Filing aligns with beneficial‑ownership reporting rules and identifies control relationships.
The statement clarifies advisory/control links: Magnetar Financial as adviser, Magnetar Capital Partners as sole member, and Supernova Management as general partner, with Mr. Snyderman as administrative manager. Ownership is reported pursuant to Rule 13d-3(d)(1)(i).
Filing references the issuer's Form 10-K for the outstanding share base; any material follow-up would appear in amended Schedule 13 filings or Form 4s if required.
Key Figures
Reported shares beneficially owned:946,350 sharesPercent of class:7.48%Shares outstanding (issuer source):12,650,000 shares+2 more
5 metrics
Reported shares beneficially owned946,350 sharesAs of March 31, 2026
Percent of class7.48%Calculated per Rule 13d-3(d)(1)(i) using issuer data
Shares outstanding (issuer source)12,650,000 sharesAs disclosed in issuer Form 10-K filed February 19, 2026
Date position changed below 5%May 11, 2026Reporting Persons ceased to have >5% beneficial ownership
Largest single fund holding shown217,671 sharesConstellation Master Fund allocation as of March 31, 2026
"This statement is filed on behalf of each of the following person (collectively"
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.
beneficial ownershipregulatory
"Amount beneficially owned: As of March 31, 2026, each of Magnetar Financial"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Rule 13d-3(d)(1)(i)regulatory
"represents approximately 7.48% of the total number of Shares outstanding (calculated pursuant to Rule 13d-3(d)(1)(i))"
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
WILLOW LANE ACQUISITION CORP.
(Name of Issuer)
Class A ordinary shares, par value $0.0001
(Title of Class of Securities)
G9675P102
(CUSIP Number)
05/12/2026
(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):
G9675P102
1
Names of Reporting Persons
MAGNETAR FINANCIAL 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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
IA, OO
SCHEDULE 13G
CUSIP Number(s):
G9675P102
1
Names of Reporting Persons
MAGNETAR CAPITAL PARTNERS LP
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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
HC, PN
SCHEDULE 13G
CUSIP Number(s):
G9675P102
1
Names of Reporting Persons
SUPERNOVA MANAGEMENT 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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
HC, OO
SCHEDULE 13G
CUSIP Number(s):
G9675P102
1
Names of Reporting Persons
DAVID J. SNYDERMAN
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
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
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)
0 %
12
Type of Reporting Person (See Instructions)
HC, IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
WILLOW LANE ACQUISITION CORP.
(b)
Address of issuer's principal executive offices:
250 West 57th Street, Suite 415 New York, NY, 10107
Item 2.
(a)
Name of person filing:
person filing: This statement is filed on behalf of each of the following person (collectively, the "Reporting Persons"):
i) Magnetar Financial LLC ("Magnetar Financial");
ii) Magnetar Capital Partners LP ("Magnetar Capital Partners");
iii) Supernova Management LLC ("Supernova Management"); and
iv) David J. Snyderman ("Mr. Snyderman").
This statement relates to the Shares (as defined herein) held for Magnetar Constellation Master Fund, Ltd ("Constellation Master Fund"), Magnetar Xing He Master Fund Ltd ("Xing He Master Fund"), Magnetar SC Fund Ltd ("SC Fund"), all Cayman Islands exempted companies; Magnetar Structured Credit Fund, LP ("Structured Credit Fund"), a Delaware limited partnership; Magnetar Alpha Star Fund LLC ("Alpha Star Fund"), Magnetar Lake Credit Fund LLC ("Lake Credit Fund"), Purpose Alternative Credit Fund LLC ("Purpose Alternative Credit Fund"), Purpose Alternative Credit Fund - T LLC ("Purpose Alternative Credit Fund - T"), all Delaware limited liability companies; collectively (the "Magnetar Funds"). Magnetar Financial serves as the investment adviser to the Magnetar Funds, and as such, Magnetar Financial exercises voting and investment power over the Shares held for the Magnetar Funds' accounts. Magnetar Capital Partners serves as the sole member and parent holding company of Magnetar Financial. Supernova Management is the general partner of Magnetar Capital Partners. The administrative manager of Supernova Management is Mr. Snyderman.
(b)
Address or principal business office or, if none, residence:
The address of the principal business office of each of Magnetar Financial, Magnetar Capital Partners, Supernova Management, and Mr. Snyderman is 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201.
(c)
Citizenship:
Place of Organization.
i) Magnetar Financial is a Delaware limited liability company;
ii) Magnetar Capital Partners is a Delaware limited partnership;
iii) Supernova Management is a Delaware limited liability company; and
iv) Mr. Snyderman is a citizen of the United States of America.
(d)
Title of class of securities:
Class A ordinary shares, par value $0.0001
(e)
CUSIP No.:
G9675P102
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:
As of March 31, 2026, each of Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman held 946,350 Shares. The amount consists of (A) 217,671 Shares held for the account of Constellation Master Fund; (B) 170,348 Shares held for the account of Lake Credit Fund; (C) 151,420 Shares held for the account of Structured Credit Fund; (D) 141,955 Shares held for the account of Xing He Master Fund; (E) 94,632 Shares held for the account of Alpha Star Fund; (F) 85,168 Shares held for the account of Purpose Alternative Credit Fund; (G) 66,238 shares held for the account of Magnetar SC Fund; and (H) 18,918 Shares held for the account Purpose Alternative Credit Fund - T.
The Shares held by the Magnetar Funds on March 31, 2026 represent approximately 7.48% of the total number of Shares outstanding (calculated pursuant to Rule 13d-3(d)(1)(i)) of the outstanding shares of the Issuer).
Each of the Reporting Persons ceased to have beneficial ownership of greater than 5% of the Shares on May 11, 2026.
(b)
Percent of class:
As of March 31, 2026, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 7.48% of the total number of shares outstanding (based upon the information provided by the Issuer in the Form 10-K filed on February 19, 2026 there were approximately 12,650,000 Shares outstanding).
Each of the Reporting Persons ceased to have beneficial ownership of greater than 5% of the Shares on May 11, 2026.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
0
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
0
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
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.
MAGNETAR FINANCIAL LLC
Signature:
/s/ Hayley Stein
Name/Title:
Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:
05/13/2026
MAGNETAR CAPITAL PARTNERS LP
Signature:
/s/ Hayley Stein
Name/Title:
Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:
05/13/2026
SUPERNOVA MANAGEMENT LLC
Signature:
/s/ Hayley Stein
Name/Title:
Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:
05/13/2026
DAVID J. SNYDERMAN
Signature:
/s/ Hayley Stein
Name/Title:
Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:
05/13/2026
Comments accompanying signature: MAGNETAR FINANCIAL LLC BY: Magnetar Capital Partners LP, its Sole Member BY: Supernova Management LLC, its General Partner
MAGNETAR CAPITAL PARTNERS LP By: Supernova Management LLC, its General Partner
Exhibit Information
99.1 Joint Filing Agreement, dated as of May 13, 2026, among the Reporting Persons.
99.2 Power of Attorney, dated as of December 22, 2022 filed by the Reporting Persons on May 13, 2026.
What stake did Magnetar report in WLAC on March 31, 2026?
Magnetar reporting persons disclosed 946,350 shares, equal to approximately 7.48% of WLAC’s Class A ordinary shares as of March 31, 2026. The percentage uses the issuer’s stated outstanding share count of 12,650,000 from the Form 10-K.
Which Magnetar entities are named in the WLAC Schedule 13G/A?
The filing lists Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman as Reporting Persons and explains their adviser/parent/general-partner relationships.
When did the Reporting Persons cease to hold over 5% of WLAC?
The Schedule 13G/A states each Reporting Person "ceased to have beneficial ownership of greater than 5%" on May 11, 2026. The filing does not disclose the specific transaction or mechanism causing the change.
How is the 946,350 share total allocated among Magnetar funds?
The filing breaks the total into fund-level holdings: 217,671 (Constellation Master Fund), 170,348 (Lake Credit Fund), 151,420 (Structured Credit Fund), plus other fund allocations totaling 946,350 shares as of March 31, 2026.
