HarbourVest Partners LLC
HarbourVest Partners LLC reported 6 US-listed holdings worth $170.0 million in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Klarna Group PLC (59.8%), Generate Biomedicines Inc. (17.1%) and Xanadu Quantum Technolo Ltd (15.2%). Against the quarter before, it opened 1 position, added to 0, trimmed 0 and sold out of 0.
The 6 largest of its 6 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What its reported holdings returned
Held through each quarter, the holdings it reported returned +6.0% over the 7 quarters to 30 June 2026, against +30.2% for the S&P 500.
Not the fund's own return: each 13F's holdings are kept unchanged until the next one, so trades inside a quarter, dividends, cash and fees are left out. A rough guide to how its picks have done over time.
What it did on the quarter
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 1
- Xanadu Quantum Technolo Ltd XNDU$25.9 million
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Klarna Group PLC KLAR | 5.0M | $101.7 million | 59.79% | no change |
| Generate Biomedicines Inc. GENB | 1.7M | $29.1 million | 17.09% | no change |
| Xanadu Quantum Technolo Ltd XNDU | 2.1M | $25.9 million | 15.24% | new |
| Full Truck Alliance Co. Ltd YMM | 957.6K | $7.8 million | 4.57% | no change |
| CAMP4 Therapeutics Corp. CAMP | 1.3M | $5.6 million | 3.27% | no change |
| Century Therapeutics Inc. IPSC | 29.0K | $71,094 | 0.04% | no change |