Insider filing report for Changes in Beneficial Ownership

  • Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
  • Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.1)

Bilander Acquisition Corp
(Name of Issuer)
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Class A Common Stock, par value $0.0001 per share
(Title of Class of Securities)
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09001T106
(CUSIP Number)

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December 29, 2023
(Date of Event Which Requires Filing of this Statement)
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Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:

/X/ Rule 13d 1(b)
/ / Rule 13d 1(c)
/ / Rule 13d 1(d)

The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect
to the subject class of securities, and for any subsequent
amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall
 not be deemed to be filed for the purpose of Section 18 of the
Securities Exchange Act of 1934 (Act)or otherwise subject to the
liabilities of that section of the Act but shall be subject to all
other provisions of the Act (however, see the Notes).

CUSIP No.09001T106



1.   Names of reporting persons

UBS O'Connor LLC

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2.   Check the appropriate box if a member of a group
a  / /
b  / /
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3.  SEC use only
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4.  Citizenship or place of organization

Delaware
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Number of shares beneficially owned by each reporting person with:

Number of       5.  Sole Voting Power 	      NA

Shares Bene-    6.  Shared Voting Power       NA
ficially        7.  Sole Dispositive Power    NA
Owned by Each   8.  Shared Dispositive Power  NA
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9.  Aggregate Amount Beneficially Owned by Each Reporting Person:

NA

-----------------------------------------------------------

10. Check if the aggregate amount in Row (9) excludes certain shares
(see instructions)

Shares / /

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11.  Percent of class represented by amount in Row (9)

NA

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12.  Type of reporting person (see instructions)
OO;IA
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Item 1(a) Name of issuer: Bilander Acquisition Corp. (the Issuer)
-----------------------------------------------------------

Item 1(b) Address of issuer's principal executive offices:

Four Embarcadero Center, Suite 2100
San Francisco, CA 94111



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2(a) Name of person filing:
UBS O'Connor LLC
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2(b) Address or principal business office or, if none, residence:


One North Wacker Drive, 31st Floor,
Chicago, Illinois 60606


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2(c) Citizenship:
Delaware
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2(d) Title of class of securities:
 Class A Common Stock, par value $0.0001 per share
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2(e) CUSIP No.: 09001T106

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Item 3.	If this statement is filed pursuant to Sections
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 /X /	An investment adviser in accordance with Section
240.13d 1(b)(1)(ii)(E);
(f) / /	An employee benefit plan or endowment fund in
accordance with Section 240.13d 1(b)(1)(ii)(F);
(g) /X/ A parent holding company or control person in
accordance with Section 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
Section 240.13d 1(b)(1)(ii)(J);
(k) / /	Group, in accordance with Section
240.13d 1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with
Section 240.13d  1(b)(1)(ii)(J), please specify the type of
institution: ________________________________

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Item 4.	Ownership

Provide the following information regarding the aggregate number
 and percentage of the class of securities
 of the issuer identified in Item 1
(a) Amount beneficially owned:0
(b) Percent of class: 0%
(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. If this statement
is being filed to report the fact that as of the date hereof the
reporting person has ceased to be the beneficial owner of more than
5 percent of the class of securities, check the following /X/.
Dissolution of a group requires a response to this item.

Item 6.	Ownership of More than 5 Percent on Behalf of Another Person.
Not applicable.
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Item 7.Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported
on by the Parent Holding Company or Control Person.

The information set forth in Item 2 is hereby incorporated herein by reference
-----------------------------------------------------------

Item 8. Identification and Classification of Members of the Group.
Not applicable.
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Item 9. Notice of Dissolution of Group.
Not applicable.
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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 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 Section 240.Sub Section14a-11.

Signatures

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.


Date: 2/092024

Signature: /s/
Name: Andrew Johnson
Title: Director

Date:  2/09/2024

Signature: /s/
Name:Rollins Simmons
Title: Authorized Signatory