HarbourVest Private Equity Secondaries Fund (TE) L.P. (the “Partnership”) is a Delaware limited partnership formed on February 17, 2026 as a private fund exempt from registration under Section 3(c)(7) of the Investment Company Act of 1940, as amended. The Partnership’s commencement of operations will be the date on which the Partnership accepts its first third-party investors and begins investment operations (“Commencement of Operations”). As of June 30, 2026, the Partnership has not accepted third-party investors and has not commenced operations.

The general partner of the Partnership is HarbourVest GP LLC, a Delaware limited liability company (the “General Partner”). The General Partner is authorized to establish additional classes or series of Units with such terms, rights and obligations as determined in the sole discretion of the General Partner without receiving consent from the Limited Partners. The General Partner has authorized the Partnership to appoint HarbourVest Partners L.P. (the “Manager”), a Delaware limited partnership, to manage the affairs of the Partnership. The General Partner and the Manager are affiliates of HarbourVest Partners, LLC.

The Partnership intends to invest substantially all of its assets in HarbourVest Private Equity Secondaries Cayman Parallel Fund L.P. (the “Cayman Feeder Fund”), which will carry out its investment strategy by investing through HSEC Holdings L.P., a Delaware limited partnership (the “Aggregator”), and to engage in any other lawful activity as the General Partner may from time to time determine. As of June 30, 2026 and March 31, 2026, the Partnership held no ownership in the Cayman Feeder Fund.

The investment objective of the Cayman Feeder Fund is to deliver capital growth over the medium to long term through direct or indirect exposure to the equity and debt of primarily private businesses, across geographies, sectors and stages primarily through secondary investments (“Secondary Investments”) and complemented by certain primary partnership investments (“Primary Partnership Investments”), in the private equity space, with the potential to generate medium- to long-term outperformance compared to public markets while striving to limit volatility and downside risk. The Cayman Feeder Fund invests all or substantially all of its assets through its investment in the Aggregator. The Partnership and Aggregator have the same investment objectives as the Cayman Feeder Fund.

The Partnership has entered into a limited partnership agreement with the General Partner. Overall responsibility for the Partnership oversight rests with the General Partner. The General Partner will delegate the Partnership’s portfolio management function to the Manager.

Organization	3 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization HarbourVest Private Equity Secondaries Fund (TE) L.P. (the “Partnership”) is a Delaware limited partnership formed on February 17, 2026 as a private fund exempt from registration under Section 3(c)(7) of the Investment Company Act of 1940, as amended. The Partnership’s commencement of operations will be the date on which the Partnership accepts its first third-party investors and begins investment operations (“Commencement of Operations”). As of June 30, 2026, the Partnership has not accepted third-party investors and has not commenced operations. The general partner of the Partnership is HarbourVest GP LLC, a Delaware limited liability company (the “General Partner”). The General Partner is authorized to establish additional classes or series of Units with such terms, rights and obligations as determined in the sole discretion of the General Partner without receiving consent from the Limited Partners. The General Partner has authorized the Partnership to appoint HarbourVest Partners L.P. (the “Manager”), a Delaware limited partnership, to manage the affairs of the Partnership. The General Partner and the Manager are affiliates of HarbourVest Partners, LLC. The Partnership intends to invest substantially all of its assets in HarbourVest Private Equity Secondaries Cayman Parallel Fund L.P. (the “Cayman Feeder Fund”), which will carry out its investment strategy by investing through HSEC Holdings L.P., a Delaware limited partnership (the “Aggregator”), and to engage in any other lawful activity as the General Partner may from time to time determine. As of June 30, 2026 and March 31, 2026, the Partnership held no ownership in the Cayman Feeder Fund. The investment objective of the Cayman Feeder Fund is to deliver capital growth over the medium to long term through direct or indirect exposure to the equity and debt of primarily private businesses, across geographies, sectors and stages primarily through secondary investments (“Secondary Investments”) and complemented by certain primary partnership investments (“Primary Partnership Investments”), in the private equity space, with the potential to generate medium- to long-term outperformance compared to public markets while striving to limit volatility and downside risk. The Cayman Feeder Fund invests all or substantially all of its assets through its investment in the Aggregator. The Partnership and Aggregator have the same investment objectives as the Cayman Feeder Fund. The Partnership has entered into a limited partnership agreement with the General Partner. Overall responsibility for the Partnership oversight rests with the General Partner. The General Partner will delegate the Partnership’s portfolio management function to the Manager.