Greenstone Partners & Co., LLC

Q3 2026 13F-HR Holdings

Location
Larkspur, CA
Holdings as of
9/30/2026
Date filed
11/13/2026
Form type
13F-HR
Num holdings
8
Total value ($000)
$361,579
Net value change ($000)
-71,017 (-16.4%)
New positions
1
Sold out positions
1
Turnover %
11.4%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/14/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
QXO 16,366 NEW
GWRE 7,853 15.8%
SGI 2,994 6.7%
PCOR 2,506 9.2%
Top Reduces (Value $000, Stocks/ETFs)
APP -46,792 -46.5%
CHTR -24,768 -100.0%
AYI -15,826 -23.4%
APPF -7,464 -17.0%
VSTS -5,885 -8.0%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type