Greenhaven Associates

Superinvestor

Greenhaven Associates Inc

SEC CIK: 0000846222
Manager: Edgar Wachenheim III
Style: Value
Latest filing: Jul 28, 2026

SEC filings (opens in a new tab)

AVTR holding history

Avantor, Inc. in every 13F filed by Greenhaven Associates, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AVTR overview All 13F holders of AVTR Full Q2 2026 holdings

Shares (Q2 2026): 24,637,310
Value: $243.9M
% of portfolio: 2.8%
Quarters held: 4; Since Q3 2025

Holdings of AVTR by Greenhaven Associates, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	24,637,310	$243.9M	2.8%	+2,043,472+9.0%	Added	Holders
Q1 2026	22,593,838	$177.1M	2.9%	+2,093,185+10.2%	Added	Holders
Q4 2025	20,500,653	$234.9M	3.8%	+2,189,083+12.0%	Added	Holders
Q3 2025	18,311,570	$228.5M	3.5%	+18,311,570	New	Holders