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HarbourVest Partners LLC

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13F filer, CIK 1201001, Boston, MA

HarbourVest Partners LLC reported $205,082,792 across 9 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-11-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001193125-25-281332

Period
2025-09-30
Reported value
$205M
Holdings
9
Top 10 weight
100%
New
3
Sold out
9

Largest buys vs the previous quarter

SecurityShares changeApprox. value
KLARnew+5,023,320$184M
PGYnew+112,591$3.34M
RKLBnew+14,770$708K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
Wexited-1,062,126-$54.3M
IOTexited-217,965-$8.67M
RBRKexited-87,658-$7.85M
HAPNexited-238,055-$2.86M
RLAYexited-296,402-$1.03M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001193125-25-281332, largest first. % of portfolio is the value over $205,082,792, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
KLARKLARNA GROUP PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 5,023,320 shares 5,023,320$184M89.77%newTimeline
YMMFULL TRUCK ALLIANCE CO LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 957,580 shares; 2024Q4: 957,580 shares; 2025Q1: 957,580 shares; 2025Q2: 957,580 shares; 2025Q3: 957,580 shares 957,580$12.4M6.06%0Timeline
CAMPCAMP4 THERAPEUTICS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 1,271,948 shares; 2025Q1: 1,271,948 shares; 2025Q2: 1,271,948 shares; 2025Q3: 1,271,948 shares 1,271,948$3.82M1.86%0Timeline
PGYPAGAYA TECHNOLOGIES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 112,591 shares 112,591$3.34M1.63%newTimeline
RKLBROCKET LAB CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 14,770 shares 14,770$708K0.35%newTimeline
UUNITY SOFTWARE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 34,194 shares; 2024Q4: 34,194 shares; 2025Q1: 34,194 shares; 2025Q2: 34,194 shares; 2025Q3: 9,242 shares 9,242$370K0.18%-24,952Timeline
SONDQSONDER HLDGS INC CL A NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 225,112 shares; 2024Q4: 225,112 shares; 2025Q1: 225,112 shares; 2025Q2: 225,112 shares; 2025Q3: 225,112 shares 225,112$286K0.14%0Timeline
REPARE THERAPEUTICS INCREPARE THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,276 shares; 2024Q4: 12,276 shares; 2025Q1: 12,276 shares; 2025Q2: 12,276 shares; 2025Q3: 12,276 shares 12,276$21.6K0.01%0
IPSCCENTURY THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 29,018 shares; 2024Q4: 29,018 shares; 2025Q1: 29,018 shares; 2025Q2: 29,018 shares; 2025Q3: 29,018 shares 29,018$14.5K0.01%0Timeline

Sold out in Q3 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
WWAYFAIR INC1,062,126$54.3Mshares
IOTSAMSARA INC217,965$8.67Mshares
RBRKRUBRIK INC.87,658$7.85Mshares
HAPNHAPPEN INC238,055$2.86Mshares
RLAYRELAY THERAPEUTICS INC296,402$1.03Mshares
TTANSERVICETITAN INC8,458$907Kshares
DIBS1STDIBS COM INC199,496$549Kshares
CXMSPRINKLR INC52,337$443Kshares
OPENOPENDOOR TECHNOLOGIES INC46,707$24.9Kshares

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001193125-25-281332 base2025-11-14acceptance time not in the bulk data set