HarbourVest Partners LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), HarbourVest Partners LLC reported 5 stock positions worth $100.9 million. Its top holding was Klarna (KLAR) at 65.2% of the portfolio, followed by Generate Biomedicines (GENB, 21.3%) and Full Truck Alliance -SPN ADR (YMM, 7.9%). Compared with Q4 2025, it opened 1 new position and sold out of 3. The biggest buy was a new position in Generate Biomedicines (GENB) and the biggest sale an exit from Rubrik Class A (RBRK).

Most Recent 13F
Q2 2026
Location
Boston, MA
CIK
0001201001
Portfolio Value
$100.9M (Q1 2026)
SEC Filing
0001193125-26-225130 ↗ filed May 15, 2026

Holdings Value

0$50.0M$100.0M$150.0M$200.0M$250.0M Q1 2024: $219.3M Q1 2024 Q2 2024: $187.9M Q2 2024 Q3 2024: $192.3M Q3 2024 Q4 2024: $202.6M Q4 2024 Q1 2025: $153.7M Q1 2025 Q2 2025: $91.3M Q2 2025 Q3 2025: $205.1M Q3 2025 Q4 2025: $174.2M Q4 2025 Q1 2026: $100.9M $100.9M Q1 2026 Q2 2026: $170.0M Q2 2026

Holdings 5 stocks · $100.9M

KLAR Klarna Group PLC 65.17% 5,023,320 $65.8M No change
GENB Generate Biomedicines Inc. 21.33% 1,722,210 $21.5M New
YMM Full Truck Alliance -SPN ADR 7.88% 957,580 $7.9M No change
CAMP CAMP4 Therapeutics Corp. 5.56% 1,271,948 $5.6M No change
IPSC Century Therapeutics Inc. 0.07% 29,018 $66K No change

Portfolio Sells Q4 2025 → Q1 2026

RBRK Rubrik Inc. Class A Sold out 0.00% −3.96
EPSN Epsilon Energy Ltd. Sold out 0.00% −2.24
RPTX Repare Therapeutics Inc. Sold out 0.00% −0.02

Portfolio Buys Q4 2025 → Q1 2026

GENB Generate Biomedicines Inc. New 21.33% +21.33

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 6$170.0MKLAR, GENB, XNDU, YMM, CAMP
Q1 2026 5$100.9MKLAR, GENB, YMM, CAMP, IPSC
Q4 2025 7$174.2MKLAR, YMM, CAMP, RBRK, EPSN
Q3 2025 9$205.1MKLAR, YMM, CAMP, PGY, RKLB
Q2 2025 15$91.3MW, YMM, IOT, RBRK, HAPN
Q1 2025 16$153.7MTTAN, W, YMM, RBRK, CAMP
Q4 2024 22$202.6MTTAN, W, HCP, YMM, HSAI
Q3 2024 34$192.3MTOST, W, HCP, YMM, HAPN
Q2 2024 40$187.9MTOST, W, HCP, YMM, OMGAQ
Q1 2024 48$219.3MW, TOST, NABL, OMGAQ, YMM