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Greenhaven Road Investment Management, L.P.

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13F filer, CIK 1741129, GREENWICH, CT

Greenhaven Road Investment Management, L.P. reported $291,944,383 across 19 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-13. Its ten largest share positions make up 90.52% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001420506-25-001976

Period
2025-06-30
Reported value
$292M
Holdings
19
Top 10 weight
90.52%
New
2
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ASTSnew+268,000$12.5M
KWYadded+554,891$7.51M
HGTYadded+451,033$4.56M
ALLTadded+457,726$3.91M
SOCadded+45,000$989K

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
APPSexited-1,025,951-$2.79M
ALTGreduced-433,888-$2.74M
KKRreduced-10,000-$1.33M
BNEDreduced-85,000-$1M
CLBTreduced-54,046-$865K

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, Q2 2025

Share positions as resolved from 13F-HR 0001420506-25-001976, largest first. % of portfolio is the value over $284,800,883, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
PARPAR TECHNOLOGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,200,374 shares; 2024Q4: 878,258 shares; 2025Q1: 1,007,289 shares; 2025Q2: 995,014 shares 995,014$69M24.24%-12,275Timeline
KKRKKR & CO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 278,700 shares; 2024Q4: 266,700 shares; 2025Q1: 244,700 shares; 2025Q2: 234,700 shares 234,700$31.2M10.96%-10,000Timeline
LFCRLIFECORE BIOMEDICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,228,784 shares; 2024Q4: 3,616,146 shares; 2025Q1: 3,616,146 shares; 2025Q2: 3,694,832 shares 3,694,832$30M10.53%+78,686Timeline
CLBTCELLEBRITE DI LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,086,411 shares; 2024Q4: 1,975,541 shares; 2025Q1: 1,572,093 shares; 2025Q2: 1,518,047 shares 1,518,047$24.3M8.53%-54,046Timeline
BURBURFORD CAPITAL LIMITEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,622,622 shares; 2024Q4: 1,607,622 shares; 2025Q1: 1,607,622 shares; 2025Q2: 1,625,330 shares 1,625,330$23.2M8.14%+17,708Timeline
HGTYHAGERTY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,508,448 shares; 2024Q4: 1,236,170 shares; 2025Q1: 1,360,506 shares; 2025Q2: 1,811,539 shares 1,811,539$18.3M6.43%+451,033Timeline
KWYKINGSWAY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 509,291 shares; 2024Q4: 511,060 shares; 2025Q1: 755,645 shares; 2025Q2: 1,310,536 shares 1,310,536$17.7M6.23%+554,891Timeline
LPXLOUISIANA PAC CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 141,117 shares; 2024Q4: 151,617 shares; 2025Q1: 194,917 shares; 2025Q2: 201,417 shares 201,417$17.3M6.08%+6,500Timeline
SOCSABLE OFFSHORE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 501,613 shares; 2024Q4: 623,364 shares; 2025Q1: 600,889 shares; 2025Q2: 645,889 shares 645,889$14.2M4.98%+45,000Timeline
ASTSAST SPACEMOBILE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 268,000 shares 268,000$12.5M4.4%newTimeline
BNEDBARNES & NOBLE ED INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 519,897 shares; 2025Q1: 1,069,162 shares; 2025Q2: 984,162 shares 984,162$11.6M4.07%-85,000Timeline
ALTGALTA EQUIPMENT GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,794,066 shares; 2024Q4: 1,795,359 shares; 2025Q1: 1,794,389 shares; 2025Q2: 1,360,501 shares 1,360,501$8.6M3.02%-433,888Timeline
ALLTALLOT LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 100,000 shares; 2025Q1: 168,298 shares; 2025Q2: 626,024 shares 626,024$5.35M1.88%+457,726Timeline
NNNEXTNAV INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 60,000 shares; 2025Q2: 60,000 shares 60,000$912K0.32%0Timeline
CORECARD CORPORATIONCORECARD CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 7,434 shares 7,434$215K0.08%new
MTRXMATRIX SVC COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,685 shares; 2024Q4: 13,931 shares; 2025Q1: 13,969 shares; 2025Q2: 13,969 shares 13,969$189K0.07%0Timeline
RSSSRESEARCH SOLUTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 36,326 shares; 2024Q4: 40,251 shares; 2025Q1: 37,743 shares; 2025Q2: 38,477 shares 38,477$110K0.04%+734Timeline
QRHCQUEST RESOURCE HLDG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 11,054 shares; 2025Q1: 11,482 shares; 2025Q2: 12,976 shares 12,976$26.2K0.01%+1,494Timeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
SABLE OFFSHORE CORPSABLE OFFSHORE CORP COM SHScall325,000$7.14M+239,800

Sold out in Q2 2025

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

SecurityShares beforeValue beforeType
APPSDIGITAL TURBINE INC1,025,951$2.79Mshares

How Q2 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 0001420506-25-001976 base2025-08-13acceptance time not in the bulk data set