SCHEDULE 13D/AFiling Date: Oct 7, 2026
Stone (STNE) SCHEDULE 13D/A: Madrone holds 10.8% stake (Oct 7, 2026)
Beneficial Ownership (Active)
View SEC Filing
ACC: 0001545458-26-000003
Stake
Gregory Boyd Penner
ActiveAmendment #3
Class A Common Shares, par value US$0.000079365CUSIP G85158106
Percent10.80%
Shares25.23M
Event dateOct 5
Sole voting / Sole dispositive0 / 0
Shared voting / Shared dispositive25.23M / 25.23M
Reporting persons
Madrone Partners, L.P.
CIK 0001545458 · PN
10.60%
Madrone Capital Partners, LLC
CIK 0001789147 · OO
10.60%
Jameson J. McJunkin
CIK 0001293780 · IN
10.70%
Thomas Patterson
CIK 0001214954 · IN
10.60%
Gregory Boyd Penner
CIK 0001353165 · IN
10.80%
Group total — do not add member rows.
auto_awesomeDeep Analysis
Deep Analysis
Madrone Capital's Penner-led group reports a 10.8% active stake in StoneCo Class A (Madrone funds at 10.6%) via Schedule 13D/A No. 3, an update to a long-held position rather than a new passive line.
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Original SEC Filing Text expand_more
=== SEC Schedule 13D — Beneficial Ownership ===
Issuer: StoneCo Ltd.
Issuer CIK: 0001745431
Class: Class A Common Shares, par value US$0.000079365
CUSIP: G85158106
Event Date: 2026-10-05
Amendment: yes #3
--- Reporting Persons ---
- Madrone Partners, L.P. (0001545458) 24589276.00 sh 10.6% PN
- Madrone Capital Partners, LLC (0001789147) 24589276.00 sh 10.6% OO
- Jameson J. McJunkin (0001293780) 24911276.00 sh 10.7% IN
- Thomas Patterson (0001214954) 24589276.00 sh 10.6% IN
- Gregory Boyd Penner (0001353165) 25228161.00 sh 10.8% IN