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Greenstone Partners & Co., LLC

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13F filer, CIK 1845565, LARKSPUR, CA

Greenstone Partners & Co., LLC reported $395,073,140 across 9 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001420506-26-000995

Period
2026-03-31
Reported value
$395M
Holdings
9
Top 10 weight
100%
New
0
Sold out
3

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CHTRadded+169,800$36.7M
GWREadded+218,363$32.7M
APPFadded+85,888$13.6M
PCORadded+149,621$8.53M
SGIadded+42,580$3.15M

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
LBRDKexited-771,632-$37.5M
PARexited-1,019,311-$37M
XPOreduced-165,988-$32.3M
GLIBKexited-315,282-$11.7M
AYIreduced-13,170-$3.69M

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, Q1 2026

Share positions as resolved from 13F-HR 0001420506-26-000995, largest first. % of portfolio is the value over $395,073,140, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
APPAPPLOVIN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 796,837 shares; 2024Q4: 692,439 shares; 2025Q1: 404,315 shares; 2025Q2: 348,515 shares; 2025Q3: 344,251 shares; 2025Q4: 195,251 shares; 2026Q1: 195,251 shares 195,251$77.7M19.67%0Timeline
GWREGUIDEWIRE SOFTWARE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 181,689 shares; 2024Q4: 181,689 shares; 2025Q1: 179,558 shares; 2025Q2: 127,516 shares; 2025Q3: 125,956 shares; 2025Q4: 185,956 shares; 2026Q1: 404,319 shares 404,319$60.5M15.31%+218,363Timeline
AYIACUITY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 110,075 shares; 2024Q4: 110,075 shares; 2025Q1: 161,542 shares; 2025Q2: 195,269 shares; 2025Q3: 192,880 shares; 2025Q4: 192,880 shares; 2026Q1: 179,710 shares 179,710$50.4M12.75%-13,170Timeline
APPFAPPFOLIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 113,067 shares; 2024Q4: 113,067 shares; 2025Q1: 111,740 shares; 2025Q2: 134,229 shares; 2025Q3: 132,776 shares; 2025Q4: 187,609 shares; 2026Q1: 273,497 shares 273,497$43.2M10.93%+85,888Timeline
SGISOMNIGROUP INTERNATIONAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 272,017 shares; 2025Q4: 525,774 shares; 2026Q1: 568,354 shares 568,354$42M10.63%+42,580Timeline
VSTSVESTIS CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 1,919,705 shares; 2025Q3: 3,148,425 shares; 2025Q4: 5,094,356 shares; 2026Q1: 5,094,356 shares 5,094,356$40M10.14%0Timeline
PCORPROCORE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 325,558 shares; 2024Q4: 325,558 shares; 2025Q1: 321,739 shares; 2025Q2: 321,739 shares; 2025Q3: 522,802 shares; 2025Q4: 522,802 shares; 2026Q1: 672,423 shares 672,423$38.3M9.7%+149,621Timeline
CHTRCHARTER COMMUNICATIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 43,175 shares; 2024Q4: 43,175 shares; 2025Q1: 129,428 shares; 2025Q2: 115,138 shares; 2025Q3: 27,408 shares; 2025Q4: 4,358 shares; 2026Q1: 174,158 shares 174,158$37.6M9.52%+169,800Timeline
XPOXPO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 170,009 shares; 2025Q2: 192,784 shares; 2025Q3: 190,422 shares; 2025Q4: 193,703 shares; 2026Q1: 27,715 shares 27,715$5.39M1.36%-165,988Timeline

Sold out in Q1 2026

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

SecurityShares beforeValue beforeType
LBRDKLIBERTY BROADBAND CORP771,632$37.5Mshares
PARPAR TECHNOLOGY CORP1,019,311$37Mshares
GLIBKLIBERTY CAP CORP315,282$11.7Mshares

How Q1 2026 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 0001420506-26-000995 base2026-05-14acceptance time not in the bulk data set