# EDGAR Filing Document

**Accession Number:** 0001343668
**File Stem:** 0001410368-26-010982
**Filing Date:** 2026-2
**Character Count:** 3948
**Document Hash:** a4f38a683fa7ba177a94398621c13490
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-010982.hdr.sgml**: 20260212

**ACCESSION NUMBER**: 0001410368-26-010982

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260212

**DATE AS OF CHANGE**: 20260212

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Alternative Investment Partners Absolute Return Fund STS
- **CENTRAL INDEX KEY:** 0001343668

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-21831
- **FILM NUMBER:** 26624742

**BUSINESS ADDRESS:**
- **STREET 1:** ONE TOWER BRIDGE, 100 FRONT STREET
- **STREET 2:** SUITE 1100
- **CITY:** WEST CONSHOHOCKEN
- **STATE:** PA
- **ZIP:** 19428-2881
- **BUSINESS PHONE:** 610-260-7600

**MAIL ADDRESS:**
- **STREET 1:** ONE TOWER BRIDGE, 100 FRONT STREET
- **STREET 2:** SUITE 1100
- **CITY:** WEST CONSHOHOCKEN
- **STATE:** PA
- **ZIP:** 19428-2881

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Alternative Investment Partners Absolute Return Fund STS

- **b. Investment Company Act file number:** 811-21831

- **c. CIK number of Registrant:** 0001343668

- **d. LEI of Registrant:** 549300J2IKBFV0QRHD34

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** ONE TOWER BRIDGE, 100 FRONT STREET

  - **City:** WEST CONSHOHOCKEN

  - **State:** PA

  - **Foreign country:** US

  - **Zip / Postal Code:** 19428-2881

  - **Telephone number:** 610-260-7600

**Item A.2. Information about the Series.**

- **a. Name of Series:** Alternative Investment Partners Absolute Return Fund STS

- **c. LEI of Series:** 549300J2IKBFV0QRHD34

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-12-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $178779870.43

**Total Liabilities:** $1618630.54

**Net Assets:** $177161239.89

**Cash Not Reported:** $1881925.02

**Monthly Return Information**

| Class        | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID N/A | 1.81%                | 1.17%                | 1.47%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $2036126.88              | $1158018.18                                |
| Month 2  | $0.01                    | $2156759.96                                |
| Month 3  | $-0.01                   | $5808841.28                                |

### Schedule of Portfolio Investments

| Name                              | Title                             | Identifiers                  | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   | Fair Value Level   | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| AIP ABSOLUTE RETURN FUND LDC - A. | AIP ABSOLUTE RETURN FUND LDC - A. | CUSIP: 000000000<br>LEI: N/A | Long             | EC               | RF                | US        |     61560 | NS      | $176401918.87 | 99.57%            |  |  |  | No            | N/A                | On Loan: No      |

### Signature

**Date Signed:** 2026-01-30

**Name of Applicant:** Alternative Investment Partners Absolute Return Fund STS

**Signature:** Francis J Smith

**Name of Signer:** Francis J Smith

**Title:** Principal Financial Officer