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Weiss Asset Management LP

Position in AVTR — Avantor, Inc.

CIK 1357550 BOSTON, MA

Position in AVTR

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$4,138,759
-$4,518,079 QoQ
Shares Held
527,903
-30.1% QoQ
Ownership
0.077%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2022
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AVTR Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

Weiss Asset Management LP holds $2,120,159 across 4 Medical Instruments & Supplies names.

# Ticker Company Shares Value (USD) Open

All Filings in AVTR

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,138,759 527,903
2025-12-31 $8,656,838 755,396
2025-09-30 $6,871,587 550,608
2024-09-30 $1,768,007 68,342
2022-12-31 $2,109,000 100,000
2022-06-30 $1,509,749 48,545
2022-03-31 $608,049 17,979