SEC 13F Intelligence

Managers / Q1 2026

HARBOURVEST PARTNERS LLC

CIK 0001201001 · ONE LINCOLN STREET, SUITE 1700, BOSTON, MA, 02111 · 617-348-3707

Reported Value
$101M
Q1 2026
Positions
5
Filings on Record
32
2019–present window
Filed
May 15, 2026
original filing

Summary

Harbourvest Partners LLC reported $101M in U.S.-listed holdings across 5 positions for Q1 2026.

The portfolio is heavily concentrated: Klarna alone accounts for 65.2% of reported value.

Compared with Q4 2025, the fund opened 1 new position and exited 3.

Portfolio Metrics

Turnover
+15.7%
vs prior filed quarter
Largest Position
+65.2%
Klarna
New / Exited
1 / 3
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $211MQ4 ’18Q1 ’19: $283MQ2 ’19: $262MQ3 ’19: $240MQ4 ’19: $243MQ4 ’19Q1 ’20: $207MQ2 ’20: $232MQ3 ’20: $270MQ4 ’20: $256MQ4 ’20Q1 ’21: $746MQ2 ’21: $1.0BQ3 ’21: $1.1BQ4 ’21: $782MQ4 ’21Q1 ’22: $490MQ2 ’22: $305MQ3 ’22: $306MQ4 ’22: $299MQ4 ’22Q1 ’23: $297MQ2 ’23: $352MQ3 ’23: $295MQ4 ’23: $299MQ4 ’23Q1 ’24: $219MQ2 ’24: $188MQ3 ’24: $192MQ4 ’24: $203MQ4 ’24Q1 ’25: $154MQ2 ’25: $91MQ3 ’25: $205MQ4 ’25: $174MQ4 ’25Q1 ’26: $101Mfilingsflow.com

Portfolio Composition

By security type
Other: 65.2%Common Stock: 27.0%ADR: 7.9%
  • Other · 65.2% · $66M
  • Common Stock · 27.0% · $27M
  • ADR · 7.9% · $8M

Quarter-over-Quarter Changes full breakdown →

vs Q4 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
GENBGenerate BiomedicinesNEW+1.72M1.72M+$22M$22M
RBRKRubrik, Inc.SOLD OUT−90.3K0−$7M$0
EPSNEpsilon Energy LTDSOLD OUT−840.6K0−$4M$0
RPTXRepare Therapeutics, Inc.SOLD OUT−12.3K0−$31,918$0
Klarna Group PLCHELD+05.02M−$79M$66M
YMMFull Truck Alliance Co. Ltd.HELD+0957.6K−$2M$8M
CAMPCAMP4 Therapeutics CorpHELD+01.27M−$2M$6M
IPSCCentury Therapeutics, Inc.HELD+029.0K+$36,714$65,581

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q1 2026

5 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1Klarna Group PLCSHS65.17%$66M5.02M
2GENBGenerate Biomedicineshistory →COM SHS21.33%$22M1.72M
3YMMFull Truck Alliance Co. Ltd.history →Sponsored ADS7.88%$8M957.6K
4CAMPCAMP4 Therapeutics Corphistory →Common5.56%$6M1.27M
5IPSCCentury Therapeutics, Inc.Common0.06%$65,58129.0K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$101M5May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$174M7Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$205M9Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$91M15Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$154M16May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$203M22Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$192M34Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$188M40Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$219M48May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$299M53Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$295M58Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$352M60Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$297M63May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$299M65Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$306M67Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$305M62Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$490M66May 26, 2022RESTATEMENTchanges · EDGAR ↗
Q4 2021$782M67Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$1.1B56Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$1.0B51Aug 13, 202113F-HRchanges · EDGAR ↗
Q1 2021$746M44May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$256M26Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$270M36Nov 12, 202013F-HRchanges · EDGAR ↗
Q2 2020$232M28Aug 13, 202013F-HRchanges · EDGAR ↗
Q1 2020$207M36May 14, 202013F-HRchanges · EDGAR ↗
Q4 2019$243M35Feb 13, 202013F-HRchanges · EDGAR ↗
Q3 2019$240M33Nov 13, 201913F-HRchanges · EDGAR ↗
Q2 2019$262M32Aug 13, 201913F-HRchanges · EDGAR ↗
Q1 2019$283M33May 13, 201913F-HRchanges · EDGAR ↗
Q4 2018$211M32Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.