# EDGAR Filing Document

**Accession Number:** 0001076673
**File Stem:** 0001104659-26-012104
**Filing Date:** 2026-2
**Character Count:** 6995
**Document Hash:** de1aeb812d3526208b4662def1cba068
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-012104.hdr.sgml**: 20260209

**ACCESSION NUMBER**: 0001104659-26-012104

**CONFORMED SUBMISSION TYPE**: SC TO-I/A

**PUBLIC DOCUMENT COUNT**: 12

**FILED AS OF DATE**: 20260209

**DATE AS OF CHANGE**: 20260209

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Advantage Advisers Xanthus Fund, L.L.C.
- **CENTRAL INDEX KEY:** 0001076673

**ORGANIZATION NAME:**
- **EIN:** 134038889
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC TO-I/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-57209
- **FILM NUMBER:** 26611999

**BUSINESS ADDRESS:**
- **STREET 1:** 85 BROAD STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10004
- **BUSINESS PHONE:** 212-667-4225

**MAIL ADDRESS:**
- **STREET 1:** 85 BROAD STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10004

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** XANTHUS FUND LLC
- **DATE OF NAME CHANGE:** 19990112
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Advantage Advisers Xanthus Fund, L.L.C.
- **CENTRAL INDEX KEY:** 0001076673

**ORGANIZATION NAME:**
- **EIN:** 134038889
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC TO-I/A

**BUSINESS ADDRESS:**
- **STREET 1:** 85 BROAD STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10004
- **BUSINESS PHONE:** 212-667-4225

**MAIL ADDRESS:**
- **STREET 1:** 85 BROAD STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10004

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** XANTHUS FUND LLC
- **DATE OF NAME CHANGE:** 19990112

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**SCHEDULE TO**

**Tender Offer Statement Under Section 14(d)(1) Or 13(e)(1)**

**of The Securities Exchange Act of 1934**

**FINAL AMENDMENT**

**ADVANTAGE ADVISERS XANTHUS FUND, L.L.C.**

(Name of Issuer)

**ADVANTAGE ADVISERS XANTHUS FUND, L.L.C.**

(Name of Person(s) Filing Statement)

**LIMITED LIABILITY COMPANY INTERESTS**

(Title of Class of Securities)

**N/A**

(CUSIP Number of Class of Securities)

**Bryan McKigney**

**Advantage Advisers Xanthus Fund, L.L.C.**

**85 Broad Street**

**24<sup>th</sup>** **Floor**

**New York, New York 10004**

**(212) 667-4225**

(Name, Address and Telephone Number of Person Authorized to Receive Notices and<br> Communications on Behalf of the Person(s) Filing Statement)

**With a copy to:<br> Pamela Poland Chen**

**Kirkland & Ellis LLP**

**601 Lexington Avenue**

**New York, New York 10022**

**(212) 446-4800**

◻ Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

◻ third-party tender offer subject to Rule 14d-1.

⌧ issuer tender offer subject to Rule 13e-4.

◻ going-private transaction subject to Rule 13e-3.

◻ amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer: ⌧

This final amendment relates to the Issuer Tender Offer Statement on Schedule TO (the "Statement") originally filed on November 17, 2025 by Advantage Advisers Xanthus Fund, L.L.C. (the "Fund") in connection with an offer by the Fund to purchase up to $820.39 million of interests in the Fund ("Interests") on the terms and subject to the conditions set forth in the Offer to Purchase and the related Letter of Transmittal. Copies of the Offer to Purchase and Letter of Transmittal were previously filed as Exhibits B and C to the Statement on November 17, 2025.

This is the final amendment to the Statement and is being filed to report the results of the Offer. Capitalized terms not otherwise defined herein shall have the meanings ascribed to them in the Offer to Purchase.

The following information is furnished pursuant to Rule 13e-4(c)(4):

1. The Offer expired at 12:00 midnight, Eastern Time, on December 15, 2025.

2. The Valuation Date of the Interests tendered pursuant to the Offer was December 31, 2025.

3. $132,599,429.93 in Interests were validly tendered and not withdrawn prior to the expiration of the Offer, and all of those Interests were accepted for purchase and paid by the Fund in accordance with the terms of the Offer.

SIGNATURE

After due 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.

---

| | | |
|:---|:---|:---|
| ADVANTAGE ADVISERS XANTHUS FUND, L.L.C. | ADVANTAGE ADVISERS XANTHUS FUND, L.L.C. | ADVANTAGE ADVISERS XANTHUS FUND, L.L.C. |
| By: | /s/ Bryan McKigney | /s/ Bryan McKigney |
|  | Name: | Bryan McKigney |
|  | Title: | Authorized Signatory |

---

February 9, 2026

## Ex-Filing

?xml version='1.0' encoding='ASCII'? EX-FILING FEES

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Calculation of Filing Fee Tables** <br>

---

| | | | |
|:---|:---|:---|:---|
| | | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Transaction Valuation**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Amount of Filing Fee**  |
| Fees to be Paid |  |  |  |
| Fees Previously Paid | 1 | $820390000.00 | $113295.86 |
|  | Total Transaction Valuation: | $820390000.00  |  |
|  | Total Fees Due for Filing: |  | $113295.86  |
|  | Total Fees Previously Paid:  |  | $113295.86  |
|  | Total Fee Offsets:  |  | $0.00  |
|  | Net Fee Due:  |  | $0.00  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Offering Note** <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <sup>1</sup> The Transaction Value is calculated as the aggregate maximum purchase price for Interests. The Amount of Filing Fee is calculated in accordance with Rule 0-11 under the Securities Exchange Act of 1934, as amended, as modified by Section 6(b) Filing Fee Rate Advisory for Fiscal Year 2026, which equals $138.10 per million dollars of the value of the transaction.

---

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|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | Registrant or Filer Name | Form or Filing Type | File Number | Initial Filing Date | Filing Date | Fee Offset Claimed | Fee Paid with Fee Offset Source |
| Fee Offset Claims | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| Fee Offset Sources | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

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