HarbourVest Partners LLC — 13F Holdings & Portfolio
CIK 1201001 · latest 13F-HR filed 2026-08-14
HarbourVest Partners LLC manages $170.0M in 13F-reported U.S. long-equity assets across 6 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are KLAR (59.79%), GENB (17.09%), XNDU (15.24%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 1 new position and exited 0; 3 existing positions rose in reported value and 0 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- Klarna Group PLC$35.9M +54.6%
- Generate Biomedicines$7.5M +35.0%
- Century Therapeutics, Inc.$5.5K +8.4%
HarbourVest Partners LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | Klarna Group PLC | KLAR | G5279N105 | $101.7M | 59.79% | 5,023,320 | SH |
| 2 | Generate Biomedicines | GENB | 370920100 | $29.1M | 17.09% | 1,722,210 | SH |
| 3 | Xanadu Quantum Technologies, Inc | XNDU | 98390R102 | $25.9M | 15.24% | 2,140,000 | SH |
| 4 | Full Truck Alliance Co. Ltd. | YMM | 35969L108 | $7.8M | 4.57% | 957,580 | SH |
| 5 | CAMP4 Therapeutics Corp | CAMP | 13463J101 | $5.6M | 3.27% | 1,271,948 | SH |
| 6 | Century Therapeutics, Inc. | IPSC | 15673T100 | $71.1K | 0.04% | 29,018 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $170.0M | 6 | 0001193125-26-350253 |
| 2026-03-31 | 2026-05-15 | $100.9M | 5 | 0001193125-26-225130 |
| 2025-12-31 | 2026-02-17 | $174.2M | 7 | 0001193125-26-052872 |
| 2025-09-30 | 2025-11-14 | $205.1M | 9 | 0001193125-25-281332 |
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