Private Placement (Form 8-K)

Item 3.02 Unregistered Sale of Equity Securities.

On October 1, 2026, HarbourVest Private Equity Secondaries Fund L.P. (the "Fund") sold unregistered limited partnership units (the "Units") for aggregate consideration of approximately $1.9 million. The following table details the Units sold by the Fund:

The offer and sale of the Units were made as part of the Fund's continuous private offering to third party investors that are both (a) accredited investors (as defined in Regulation D under the Securities Act of 1933, as amended (the "Securities Act")) and (b) qualified purchasers (as defined in the Investment Company Act of 1940, as amended, and the rules thereunder) and were exempt from the registration provisions of the Securities Act pursuant to Section 4(a)(2) and Regulation D promulgated thereunder.

The Fund, alongside certain parallel investment entities, invest substantially all of their assets in HSEC Holdings L.P., a Delaware limited partnership (the "Aggregating Partnership" and, collectively with the Fund, HarbourVest Private Equity Secondaries Fund (TE) L.P. and such parallel investment entities, the "HSEC Fund Complex"). On October 30, 2026, the HSEC Fund Complex (inclusive of the Fund) issued interests for aggregate consideration of approximately $1.9 million.

Item 8.01 Other Events.

Transactional Net Asset Value

The Fund calculates the Transactional NAV for purposes of establishing the price at which transactions in the respective Units are made. A description of the Fund's valuation process was included under the section entitled "Calculation of Net Asset Value" within "Item 9. Market Price of and Dividends on the Registrant's Common Equity and Related Limited Partner Matters" of the Fund's Amendment No. 1 to the Registration Statement on Form 10, filed with the Securities and Exchange Commission on June 16, 2026.

The Transactional NAV for each class of Units is determined by dividing the Fund's total assets attributable to such class less the value of any liabilities (including accrued expenses or distributions) of such class, by the total number of Units outstanding of such class. Transactional NAV per Unit may differ from the Fund's net asset value as determined in accordance with accounting principles generally accepted in the United States of America.

The Transactional NAV per Unit for each class of the Fund as of September 30, 2026, is as follows:

As of September 30, 2026, the Fund's aggregate Transactional NAV was approximately $5.3 million.