13F Insight
DOSSIER · 13F-HR · Q2 2026

PLATINUM INVESTMENT MANAGEMENT LTD

$407M in tracked AUM across 85 positions as of Q2 2026.

PI
CIK 0001256071 · last filed Jun 30, 2026
Total AUM
$407M
as of Q2 2026
Holdings
85
—
positions
Whale Score
54
54
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of SEC 13F Filing: PLATINUM INVESTMENT MANAGEMENT LTD
1. Portfolio Overview

Platinum Investment Management Ltd reported a significant contraction in portfolio value for the quarter ended September 30, 2025. The total assets under management (AUM) decreased by 28.4%, dropping from $1.50 billion to $1.08 billion. This reduction is attributable not only to potential market depreciation but also to substantial active deleveraging, as evidenced by the exit fro...

The portfolio remains highly diversified with 76 holdings, though the manager appears to be streamlining concentration. The turnover was aggressive this quarter, with 13 new positions initiated and 13 existing positions completely liquidated. The top 10 holdings account for approximately 65.7% of the total portfolio value, indicating a "core and satellite" approach where a concentrated basket of large-cap stocks anchors the portfolio, surrounded by smaller, specialized positions.

2. Key Holdings

The portfolio is anchored by a mix of high-quality large-cap growth and value stocks, with a distinct overweight in financial exchanges and healthcare.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
ZTO
ZTO EXPRESS CAYMAN INC
$45M2.0M11.0%02
MU
MICRON TECHNOLOGY INC
$21M18K5.0%03
LRCX
LAM RESEARCH CORP
$20M46K4.9%04
TCOM
TRIP COM GROUP LTD
$14M352K3.4%05
DDL
DINGDONG CAYMAN LTD
$13M6.5M3.1%06
NOAH
NOAH HLDGS LTD
$10M994K2.4%07
AVGO
BROADCOM INC
$10M26K2.4%08
M2029K104
BIRKENSTOCK HOLDING PLC
$9M210K2.2%09
G0593M107
ASTRAZENECA PLC
$9M48K2.2%10
GOOG
ALPHABET INC
$9M25K2.1%

Filing history

2026Q2Jun 30
$407M▲ 2.5%
85 positionsView →2026Q1Mar 31
$397M▼ 8.3%
89 positionsView →2025Q4Dec 31
$433M▼ 59.8%
124 positionsView →2025Q3Sep 30
$1.1B▼ 28.4%
76 positionsView →2025Q2Jun 30
$1.5B▼ 12.9%
115 positionsLocked2025Q1Mar 31
$1.7B▲ 1.4%
115 positionsLocked2024Q4Dec 31
$1.7B▼ 22.9%
115 positionsLocked2024Q3Sep 30
$2.2B▼ 10.6%
122 positionsLocked2024Q2Jun 30
$2.5B▼ 0.4%
134 positionsLocked2024Q1Mar 31
$2.5B▲ 0.7%
139 positionsLocked2023Q4Dec 31
$2.5B▼ 4.0%
142 positionsLocked2023Q3Sep 30
$2.6B▼ 11.0%
144 positionsLocked
Showing 12 of 61