Company: HQL
Filing Date: 2025-12-08
Form Type: N-CSR
Source: 0001104659-25-119341
Chunk: 0

Company: abrdn Life Sciences Investors
Filing Date: 2025-12-08
Form: N-CSR
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

| Investment Company Act file number:                 | 811-06565                     |
| Exact name of registrant as specified in charter:   | abrdn Life Sciences Investors |
| Address of principal executive offices:             | 1900 Market Street, Suite 200 |
|                                                     | Philadelphia, PA 19103        |
| Name and address of agent for service:              | Sharon Ferrari                |
|                                                     | abrdn Inc.                    |
|                                                     | 1900 Market Street Suite 200  |
|                                                     | Philadelphia, PA 19103        |
| Registrant’s telephone number, including area code: | 1-800-522-5465                |
| Date of fiscal year end:                            | September 30                  |
| Date of reporting period:                           | September 30, 2025            |

Item 1. Reports to Stockholders.

(a)

#### abrdn Life Sciences Investors (HQL)

#### Annual Report
September 30, 2025

#### aberdeeninvestments.com

#### Managed Distribution Policy(unaudited)
The Board of Trustees (the "Board") of the abrdn Life Sciences Investors (the “Fund”) has authorized a managed distribution policy (“MDP”) of paying quarterly distributions at an annual rate, set once a year, that is a percentage of the rolling average of the Fund’s net asset values over the preceding three month period ending on the last day of the month immediately preceding the distribution’s declaration date (the "Distribution Policy"). The Distribution Policy is subject to regular review by the Board. The Distribution Policy seeks to provide investors with a distribution out of current income, supplemented by realized capital gains and, to the extent necessary, paid-in capital.

With each distribution, the Fund will issue
a notice to shareholders and an accompanying press release which will provide detailed information regarding the estimated amount and composition of the distribution and other information required by the Fund’s
MDP exemptive order. The Board may amend or terminate the MDP at any time without prior notice to shareholders; however, at this time, there are no reasonably foreseeable circumstances that might cause the
termination of the MDP. You should not draw any conclusions about the Fund’s investment performance from the amount of distributions or from the terms of the Fund’s MDP.

#### Distribution Disclosure
Classification(unaudited